Home

Drop-Deck (Fender) Models

1. 161390 L H 14 85 161391 R H shown BE 5 B 5 B 5LS mesh top auto latch 121707 161961 L H 161960 R H shown BE 5 B 5 full width mesh top f b hold up 121704 16 00 161360 L H 161361 R H shown BE 5 B 5 B 5LS wood m latch 121711 RE 161395 R H shown 1 5 5 auto latch 121713 162200 L H 162201 R H shown f b hold up B 8PRS B 9PRS REAR 121041 162050 L H 162051 R H shown 20 18 B 7 B 8 B 9 5FT cleat style f b hold up 121814 162152 L H 162153 R H shown B 7 6 ft wood top 121684 162109 L H 162108 R H shown B 7B B 8B B 9B 5 ft wood top f b hold up 121676 5 4 I MIN NN NON NOH MIA NON RN QA MM MOON NO IM MIN OR NOR NHAU TAK I NIHAN NN 42 00 NRRL 42 ANH NM MAN A M AM M NM AM CN MM M M IM NON WO MN NAME AN NIA JD AAA AR AA lS 17 162160 R H only 14 95 mesh top f b hold up BE 3 5A BE 5A 125003 161351 L H 161350 R H shown BE 5 B 5 punch top full width f b hold up 121706 160108 SIDE RAMP B 8PRS B 9PRS 121038 162046 L H 162047 R H shown B 7B B 8B B 9B 5 ft cleat style f b hold up 121812 162041 L H 162040 R H shown 2018 B 7 B 8 B 9 6 ft cleat style 121804 Fenders Light Boxes Due to the several different styles amp d
2. TRAILERS _ M 2 BIG TOW QUALITY BIG TOW DEPENDABILITY oL ave p em Replacement Parts Service Manual and Operating Instructions This manual covers the following models BE 3 5 BE 5A BE 5 BE 6 BE 7 BE 5BL BE 6BL B 3 5P B 5P B 6P B 5 B 6B 7 8 B 7B 9 BE 5P BE 6P B 8PRS B 9PRS B 1T 1 75 B 2 5T B 2 5TSL B 5T B 6T B 7T B 8T Phone 866 397 8481 Fax 320 593 5703 www bigtow com This Page Left Blank Intentionally A forward from Big Tow Trailers to our valued customers and dealers In this manual you will find service information and replacement parts for your current Big Tow trailer We have put forth our best effort to provide you with common operations and replacement part information However Big Tow Trailers builds many custom trailers for various customers and cannot guarantee that your trailers features are outlined in this manual If you encounter this problem please contact your dealer If they cannot be of assistance please feel free to call our Parts Department To ensure a more productive call have your trailer s VIN number serial number ready as that will be needed to locate your correct replacement parts and answer your technical questions As a reminder we do not sell parts directly to you we only sell parts through our dealer network The team here at Towmaster Trailers will mak
3. Item Part 35 2080 Hydraulic Actuator DA20 Description 20 000 Ib actuator complete assembly w plate 35 2002 top wear pad old style without notch gt top wear pad new style with notch bottom wear pad old style without notch gt bottom wear pad new style with notch damper shock front shock pin connecting pin 5 32 x 1 1 2 cotter pin rear shock pin oo On AOIN 5 16 external tooth lock washer emergency lever push rod assembly master cylinder replacement master cylinder gasket 1 8 pipe 3 16 inverted flare fitting master cylinder cap 3 32 cable with hooks on both ends 35 3910 plate only actuator mount spacer block 35 2030 emergency lever guard not shown Dexter Electric Hydraulic Actuator BREAKAWAY KIT ACTUATOR IN CAB CONTROLLER COMMON GROUND TRAILER AND TOW VEHICLE WIRING SCHEMATIC Part Z Description 35 5031 Actuator 06 6052 Cover 03 2015 Mounting Plate for Gooseneck Models 35 3012 Long steel hyd line from actuator to axles 39 6401 12Volt 30Amp Breaker 07 0006 Hinge Rod 08 0028 Hinge 35 3000 Complete Hydraulic Line Fitting Kit 3 6 Lighting Batteries Battery Boxes 12V wet cell battery cannot ship UPS stainless steel battery box bottom only stainless steel
4. 06 1384 Latch Handle all Auto Latch models 36 0409 5 8 Lock Nut 36 1013 3 8 x 2 2 carriage bolt 36 0035 3 8 center lock nut 36 0120 3 8 Jam Nut 37 0535 06 0262 latch handle return spring replacement ramp ear for trailer 12 1591 replacement auto latch pin with washer 1 x 4 1 2 12 1595 replacement auto latch pin with washer and gusset r h 1 x 5 3 4 12 1598 06 1151 replacement auto latch pin with washer and gusset I h 1 x 5 3 4 replacement ramp ear large DD s 6 06 1749 replacement ramp ear 9 58 for 3 channel 06 0083 replacement ramp ear 6 06 2573 5 1 Ramp Rods Springs Mounts and Auto Latch BE 5 DD BE 5 shown 12A INNER SPRINGS HOOK INTO TAB ON RAMP SIDE CHANNEL o T 2 0 p 0 OUTER SPRINGS GO IN BETWEEN RAMP SIDE CHANNELS ve Q 9 fe 4T 5 2 161750 L H 161751 R H shown B 5P 4 ft punch top auto latch 121450 161910 L H 161911 R H shown B 5P 4 ft punch top full width auto latch 122100 ARTI NM EMO MM MANNA MA ANM M SNNT NN ANM EM NT MM YY RAINEY TY VOLI HR 161570 L H 161571 R H shown B 6B mesh top full width auto latch 121204 1
5. 1 16 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued 1 5 6 Tire Tread The tire tread provides the gripping action and traction that prevent your vehicle from slipping or sliding especially when the road is wet or icy In general tires are not safe and should be replaced when the tread is worn down to 1 16 of an inch Tires have built in treadwear indicators that let you know when it is time to replace your tires These indicators are raised sections spaced intermittently in the bottom of the tread grooves When they appear even with the outside of the tread it is time to replace your tires Another method for checking tread depth is to place a penny in the tread with Lincoln s head upside down and facing you If you can see the top of Lincoln s head you are ready for new tires 1 5 7 Tire Balance and Wheel Alignment To avoid vibration or shaking of the vehicle when a tire rotates the tire must be properly balanced This balance is achieved by positioning weights on the wheel to counterbalance heavy spots on the wheel and tire assembly A wheel alignment adjusts the angles of the wheels so that they are positioned correctly relative to the vehicle s frame This adjustment maximizes the life of your tires These adjustments require special equipment and should be performed by a qualified technician 1 5 8 Tire Repair The proper repair of a punctured tire requires a plug for the hole and a patch for the area i
6. 2 CYL 070207 PIN 2 1 2 CYL 370292 2 X 16 CYLINDER 370293 2 x 16 CYLINDER 2 063265 UPPER MOUNT 070203 PIN MUST USE 5000 LBS Cap Tilt 061321 N IL Il PLAT lt PLATE nsi 245 FOR HYD 063147 LOWER MOUNT 070204 2 CYL 070207 PIN 2 1 2 CYL2 063247 GUSSET 370292 2 x 16 CYLINDER 370293 2 X 16 CYLINDER 063265 UPPER MDUNT 070203 PIN 6 4 Item Part Description 37 1986 8 000 Ibs capacity winch 05 2458 Winch cable holder 06 4430 Control box mount 05 0898 Cable guides 06 7992 Winch Mount Bucket Stop The bucket stop is designed to keep the weight of a skid steer loader spread evenly on the axles of our 14 0 or longer utility trailers 70 of a skid steer s weight is on the rear tires The skid steer should be loaded where the rear tires are between the axles on the trailer as shown in FIG 2 After loading mark out the location of the bucket on the deck of the trailer lay the bucket stop centered on the deck directly in front of the bucket and mark the hole locations Drill 3 17 32 dia holes and bolt bucket stop to deck FIG 1 37 1001 bucket stop kit POOOOTOOGOOOL Description 05 0216 bucket stop bar 05 0218 bucket stop washer 3
7. 2 16 Tire Ratings T17580R x 1 Oa d range 6 ply rating gle wheel applicatio load range h 16 ply rating 4540 lbs 125psi dual wheel application load range h 16 ply rating 6005 lbs 125psi single wheel application load range h 16 ply rating 5675 los 125psi dual wheel application load range g 12 ply rating 3750 lbs 110psi 35 85R x 16 load range g 12 ply rating 3415 Ibs 110psi 35 85R x 16 load range e 10 ply rating 3042 lbs 80psi 35 85R x 16 load range e 10 ply rating 2778 lbs 80psi 35 85 x 16 load range g 12 ply bias 3415 Ibs 90psi 45 75R x 16 load range e 10 ply rating 3042 lbs 80psi 245 75R x 16 load range e 10 ply rating 2778 lbs 80psi Wheel Torque Requirements ft Ibs _ Wheel Size 1st Stage 2nd Stage 3rd Stage 12 20 25 35 40 50 75 13 20 25 35 40 50 75 14 20 25 50 60 90 120 15 20 25 50 60 90 120 16 20 25 50 60 90 120 16 5 x 6 75 20 25 50 60 90 120 16 5 x 9 75 55 60 120 125 175 225 14 5 Demount Tighten sequentially to 85 95 17 5 Hub Pilot 50 60 100 120 190 210 Clamp Ring amp Cone Nuts 17 5 Hub Pilot 50 60 190 200 275 325 5 8 Flange Nuts Torque Sequence 2 17 SECTION 3 Tongue Parts Jacks 3 1 3 2 Hitches amp Couplers 3 3 Hydraulic Actuators 3 4 3 5 Dexter Electric Hydraulic Actuator 3 6 Lighting Battery and Battery Boxes 3 7 Item Part
8. 397220 7 pole RV nose lead not shown CA32 BLU MD 10 gt CO CA32 WHT 5 QTY 5 EACH PER KIT TM23 6 POLE PLUG Note Line up arrows on harness for proper installation 40 6 12GA 397116 NOSE LEAD MD7A 395005 6 pole trailer plug only PLIO COMPLETE WIRING HARNESS P N 397080 PL3B 2X PLIO PLIO 8 180 FEMALE cx GRN BRN 5 12GA 5 12 MD9 WHT RING 4 14 GA BRN JUNCTION BOX 15 BREAKERS 10 RINGS 102 PLIO PL3B 29 zn PLIO 180 FEMALE BRN 397126 397120 397122 PL10 FRONT MAIN HARNESS MARKER EXTENSION BRAKE LEAD 397128 REAR HARNESS NOTE CONNECT ALL WIRES COLOR TO COLOR UNLESS OTHERWISED SPECIFIED NOT TO SCALE DRAWING 399023 7 pole trailer plug only 390046 RV trailer plug only PLIOB 2X 397202 locking ring not shown 4 2 Wiring Harness Used on these models B 7 B 8 B 9 B 9B B 8PRS B 9PRS B 7B B 8B B 9B Complete wiring harness p n 397098 397220 7 pole RV nose lead not shown Note Line up arrows on harness for proper installation 395005 6 pole trailer plug only Naa z m 2 2 Id z n eo rz H V DE m m GOD m E m a mw Zp DT U act uN xm x lt gt se ji 2 1 m oe i o D gt mr gt 20 11 4 A ma m n a v 711 E 7 5 4 go ac
9. Improve fuel economy Increase the life of your tires This area presents a comprehensive overview of tire safety including information on the following topics Basic tire maintenance Uniform Tire Quality Grading System Fundamental characteristics of tires Tire safety tips Use this information to make tire safety a regular part of your vehicle maintenance routine Recognize that the time you spend is minimal compared with the inconvenience and safety consequences of a flat tire or other tire failure 1 5 Safety First Basic Tire Maintenance Properly maintained tires improve the steering stopping traction and load carrying capability of your vehicle Underinflated tires and overloaded vehicles are a major cause of tire failure Therefore as mentioned above to avoid flat tires and other types of tire failure you should maintain proper tire pressure observe tire and vehicle load limits avoid road hazards and regularly inspect your tires 1 5 1 Finding Your Vehicle s Recommended Tire Pressure and Load Limits Tire information placards and vehicle certification labels contain information on tires and load limits These labels indicate the vehicle manufacturer s information including Recommended tire size Recommended tire inflation pressure Vehicle capacity weight VCW the maximum occupant and cargo weight a vehicle is designed to carry Front and rear gross axle weight ratings GAWR the maximum weight the ax
10. Yellow Red Green Trailer Plug Truck Receptacle Truck Receptacle Trailer Plug p n 39 5005 p n 39 5006 p n 39 9025 p n 39 9023 white ground brown tail clearance side marker brown tail lights and license plate lights black accessory white ground blue brakes blue accessory green right turn black electric brakes yellow left turn yellow left turn red stop lights green right turn NOTE The contacts are identified by looking into the open end of either the truck receptacle or trailer plug 6 amp 7 pole 451407 7 Pole RV Connector Vehicle End Trailer End P N 39 0045 P N 39 0044 R V TOWMASTER 1 GROUND WHITE ELECTRIC BRAKES TAIL RUNNING LIGHTS BATTERY BLACK L H STOP amp TURN _R H STOP amp TURN 45 3308 AIR BRAKE SYSTEM WIRING 4 OR 5 WIRE SCHEMATIC TRAILER ABS WARNING LAMP INTRACTOR ECU INTERNAL GROUND 5 WIRE CABLE ONLY WHITE AND YELLOW 7 WAY WHITE GROUND SECOND ABS POWER AND 1 0 LIGHTS POWER SOURCE TRAILER ABS WARNING LAMP GREEN AND WHITE ECU POWER GROUND CONNECTOR ABS ONLY 451415 SECTION 5 Ramp amp Fender Parts Ramp Rods Spring Mounts Auto Latch 5 1 5 2 Ramps 5 3 5 4 Fenders amp Light Boxes 5 5 5 6 Ramp Rods Springs Mounts and Auto Latch Description ramp hold up bar Assembly ramp hold up bar 38 lo
11. 10 deg up 6 bolt 8 bolt 23 2509 23 0009F 6k axle rubber ride hydraulic 10 deg up free backing 6 bolt 23 2509F 23 0004 6k axle rubber ride electric 22 5 deg up 6 bolt 8 bolt 23 2530 23 0010 6k axle rubber ride hydraulic 22 5 deg up 6 bolt 8 bolt 23 2535 23 0010F 6k axle rubber ride hydraulic 22 5 deg up free backing 6 bolt 7 2K Hub Drum and Axle 25 4012C hub and drum assembly 5 8 studs used with cast iron brake backing plates 25 8010 unitized oil seal 3 376 o d 2 250 i d 25 6010 inner bearing 25 6012 inner race 25 4023 drive in stud 5 8 outer race outer bearing spindle washer tang washer not shown spindle nut jam nut 25 1524 nut retainer drive in grease cap 2 72 o d 25 3530 grease cap plug 25 8032 5 8 flange wheel nut not shown 23 0084 lete 7 200 Ib rubber ride axle 5 8 studs 8K Hub Drum and Axles 25 8002 hub and drum assembly 25 8010 unitized oil seal 3 376 o d 2 25 i d 25 6010 inner bearing 25 6012 inner race 25 1015 drive in stud 5 8 25 8015 outer race 25 8020 outer bearing 25 6022 spindle washer 25 3532 tang washer not shown 25 3524 spindle nut jam nut nut retainer 25 5010 drive in grease cap 2 72 o d 25 3530 grease cap plug 25 8032 5 8 flange
12. 27 0043 tire only 235 85R x 16 12 ply load range G 27 0040 tire only 215 75R x 17 5 16 ply load range H wheel 4 5 13 white modular 5 bolt on 4 1 2 b c heel wheel T 6 x 15 white modular 8 bolt on 6 72 b c wheel only 6 x 15 spoke 8 bolt 6 b c not shown wheel only 6 x 15 oem 5 bolt on 4 1 2 b c wheel only 6 x 15 oem 6 bolt on 5 1 2 b c wheel only 6 x 16 white modular 6 bolt on 5 1 2 b c wheel only 6 x 16 white modular 8 bolt wheel only 6 x 16 white modular 6 bolt on 5 1 2 b c 1 2 offset wheel only 6 x 16 oem 6 bolt wheel only 6 x 16 oem 8 bolt wheel only 6 75 x 17 5 single wheel 8 bolt silver different offset than white wheel wheel only 6 75 x 17 5 single wheel 8 bolt white different offset than silver wheel 27 0631 wheel only 6 75 x 17 5 single wheel 8 bolt white modular 27 5030 tire wheel assembly ST175 80R x 13 load range C on 4 5 x 13 white mod 5 bolt on 4 1 2 b c 27 5003 tire wheel assembly ST205 75R x 15 load range C on 6 x 15 white mod 6 bolt on 5 1 2 b c 27 5005 tire wheel assembly ST225 75R x 15 load range D on 6 x 15 white mod 6 bolt on 5 1 2 b c tire wheel assembly ST225 75R x 15 load range D on 6 x 15 white mod 8 bolt on 6 72 b c tire wheel assembly ST225 75R x 15 load range D on 6 x 15 spoke 8 bolt on 6
13. b c not shown tire wheel assembly ST205 75R x 15 load range C on 6 x 15 oem 5 bolt on 4 1 2 b c tire wheel assembly ST205 75R x 15 load range C on 6 x 15 oem 6 bolt on 5 1 2 b c tire wheel assembly ST225 75R x 15 load range D on 6 x 15 oem 5 bolt on 4 1 2 b c tire wheel assembly ST225 75R x 15 load range D on 6 x 15 oem 6 bolt on 5 1 2 b c tire wheel assembly 235 85R x 16 load range E on 6 x 16 white mod 6 bolt on 5 1 2 b c tire wheel assembly 235 85R x 16 load range E on 6 x 16 white mod 8 bolt tireiwheel assembly 245 756 16 ange E on 6 x 16 white mod 6 bolt on 5 1 2 b c tire wheel assembly 235 85R x 16 12 ply radial on 6 x 16 white mod 8 bolt BE 7 upgrade to radial tire wheel assembly 235 85R x 16 load range E on 6 x 16 oem 6 bolt 27 6040 tire wheel assembly 235 85R x 16 load range E on 6 x 16 oem 8 bolt 27 5014 tire wheel assembly 215 75R x 17 5 16 ply load range H on 6 75 x 17 5 single wheel 8 bolt silver 27 5015 tire wheel assembly 215 75 x 17 5 16 ply load range 6 75 x 17 5 single wheel 8 bolt white 27 6081 tire wheel assembly 215 75R x 17 5 16 ply load range H 6 75 x 17 5 single wheel 8 bolt white mod 37 0413 valve stem 37 0501 valve stem 37 0573 valve stem 37 0574 valve stem
14. 06 0535 5K Jack Assembly Note which way pin pulls when ordering from side or from rear Description 6 mounting bracket formed 6 mounting bracket 2 x 2 angle 8 mounting bracket 2 x 2 angle 8 mounting bracket 5 x 3 angle special mounting bracket 25K jacks mounting bracket male 5K swing up jack mounting bracket female 5K swing up jack replacement pin 7K drop leg jack 5K swing up jack 5 8 x 3 3 8 Butler jack pin replacement jack hand 12K top wind jack jack handle jack handle replacement handle only 5K swing up jack 33 5075 5K swing up jack complete with mounting brackets 3 1 Note location of brackets centered or all the way forward shown Item Part Z Note which way pin pulls when ordering from side or from rear Description 33 5021 replacement handle only 7K drop leg jack 33 5154 replacement handle for Butler 7K drop leg jack 33 5020 7K drop leg jack 10 with handle base and pin 33 5019 7K drop leg jack 15 with handle base and pin replacement base only 7K drop leg jack 7K drop leg jack complete assembly with 6 formed brackets 10 jack 7K drop leg jack complete assembly with 6 formed brackets 15 jack Buttler jack base 10K top wind jack leg only for 10K top wind jack pin onl
15. 6320 travel link 31 6330 shoe and lining kit 31 6332 shoe and lining kit r h 31 6325 shoe lever return spring 31 6106 retractor spring adjusting screw spring adjuster assembl brake mounting nut lock washer dust plug shoe lever lock nut screw washer primary shoe return spring 2 12 7 2K Electric Brake 12 1 4 x 2 1 2 Item Part 31 1504C I h complete brake assembly 31 1502C r h complete brake assembly 31 1515CL shoe and lining kit 31 1515 shoe and lining kit 31 1518 shoe return spring grey 31 1511 l h actuating arm assembly 31 1513 r h actuating arm assembly 31 1015 h Tever arm retainer 31 1017 r h lever arm retainer 31 1535 flange nut magnet kit adjuster spring red 31 1519 adjuster assembl 31 1540 dust shield 31 3507 adjuster slot plug 31 1322 centering spring 2 13 8K Electric Brake 12 1 4 x 3 3 8 Item Part 310829c Lh brake assembly 310831 brake assembly 310901 I h shoe and lining kit 310903c r h shoe and lining kit 311007 l h actuator arm assembly 311009 r h actuator arm assembly 311015 Lh arm shoe retainer 311017 r h arm shoe retainer 311535 flange nut 311347 centering spring adjuster cable 311323 Lh adjuster
16. PROPER TONGUE WEIGHT 8392 9 393 100 AND 393 102 452820 CAUTION KEEP BATTERY CHARGED pin 450014 To ensure proper break away 1 This trailer equipped with protection check battery pexter axe E Z Lube regularly for proper cha rge Use only LITHIUM COMPLEX NLGI CONSISTENCY 2 GREASE Other types of grease may not be compatible mm These hubs and bearing have been lubricated at the factory The bearings can ve periodically lubericated without removing hubs Simply remove the rubber plug attach a grease gun to the grease fitting apply grease until new grease come out around the slotted spindle nut Wipe off any excess and reinstall the rubber plug BREAK AWAY SWITCH CAUTION Pallet forks must be To check USE ONLY 1 Attach trailer to tow vehicle coupler a E Do NOT connect wiring recepticle to tow vehicle S ec u red to r W h 2 Remove break away plug from switch box 3 Pull trailer forward slightly looking for trailer brakes to be locked t r 6 m Oti O n 4 Promptly replace plug into switch box 5 Attach break away cable to tow vehicle for transport Do not remove break away plug from switch box for use as a parking brake or while wiring recepticle is pluged into tow vehicle severe wiring damage may be 5559 450291 p n 450052 1 red white reflectorized tape p n 450008 p n 450050 2 red white reflectorized tape 7 2
17. Regulations 392 9 393 100 and 393 102 frequently Use only grade 8 bolts and nuts on hitch KEEP THEM TIGHT Trailer must be towed level or slightly higher 1 to 2 in front maximum payload capacity and proper towing Check hitch bolts This trailer with HYDRAULIC SURGE BRAKES may not comply Trailer tongue is rated to transfer 20 2596 of gross weight to achieve 7 1 Decals Warnings and Cautions p n 452820 ADANGER _4 CAUTION errors Towne as A WARNING SERIOUS INJURY AND OR COUPLER HITCH AND TRAILER BALL ARE THE SAME SIZE YOU ARE REQUIRED TO COMPLY WITH PROPERTY DAMAGE CAN COUPLER IS LATCHED LOCAL AND STATE REQUIREMENTS SAFETY CHAINS ARE CRISSCROSSED UNDER TONGUE AND ATTACHED TO TOW VEHICLE REGARDING BRAKES LICENSING AND RESULT IF THIS VEHICLE ALL TRAILER LIGHTING IS WORKING CORRECTLY AN ADDITIONAL EQUIPMENT THAT IS TOWED BEFORE LOAD IS SECURED TO TRAILER FRONT AND REAR MAY BE NECESSARY CONTACT YOUR FAMILIARIZING YOURSELF TONGUE JACK IF SO EQUIPPED IS RETRACTED WITH THE MANUFACTURER S TLT PIN IS LATCHED STROR MORE INFORMATION ALSO OPERATING INSTRUCTIONS WHEEL LUG BOLTS ARE PROPERLY TIGHTENED TIRES ARE INFLATED TO PRESSURE INDICATED ON TIRE REFER TO DOT FEDERAL MOTOR AND CAUTIONS LISTED TRAILER BRAKES ARE PROPERLY ADJUSTED AND BREAK AWAY DEVICE IS ATTACHED TO TOW VEHICLE CARRIER SAFETY REGULATIONS TO THE RIGHT LOAD IS WITHIN TRAILER CAPACITY AND DISTRIBUTED PROPERLY TO MAINTAIN
18. at 1 800 424 9393 or 366 0123 in Washington DC area or write to NHTSA U S Department of Transportation 400 7th Street SW NSA 11 Washington DC 20590 You may also obtain other information about motor vehicle safety from the http www safecar gov 1 4 Maintenance and Operating Instructions Maintenance and Operating Instructions TIRES Check daily and maintain proper inflation Refer to Tire Chart WHEEL NUTS Check weekly and maintain proper torque WHEEL BEARINGS Check bearings every 3000 miles Grease if necessary Check for overheating and excessive wear when operating in severe conditions i e deep mud sand or water and also when a hub is pulled for any reason WHEEL BEARINGS LUBRICATION Check oil level of wheel bearings daily Where severe operating conditions such as deep mud sand or water etc are encountered bearings should be checked for over heating or excessive wear and also when a hub is pulled for any reason Fill hub with SAE 90 oil to indicated level on hub cap BATTERY Keep battery charged To ensure proper break a way protection check battery regularly for proper charge ELECTRICAL PLUG Check trailer plug and truck receptacle for damage and or corrosion and that they fit tight LIGHTS WIRING Inspect all lights for proper operation daily and replace as necessary Connect power source preferably tow vehicle to trailer and check all lights for proper operation and possible lo
19. cover 1 new products which have been operated in excess of rated capacities 2 misuse or accidents 3 vehicles which have been altered modified or repaired in any manner not authorized by our company 4 second hand or used vehicle In no way shall the manufacturer be held liable for consequential damages such as rentals of substitute vehicles loss of profits or other commercial losses Further new vehicle tires are warranted by their respective manufacturers and are not warranted by us Manufacturer will handle disposition of warranties on all other purchased components such as axles suspensions wheels and other purchased parts in conjunction with their respective manufacturers and under the terms of their respective warranty policies The manufacturer must receive immediate notification of a defect and no allowance will be made for repairs without manufacturer s prior consent or approval Manufacturer does not pre authorize any dealership for warranty work You must call our warranty service department to receive an authorization number If the work performed is not preauthorized with a claim number it may be deemed void Defective parts must be returned Customer Registration Required Federal regulations require motor vehicle manufacturers to maintain a record of original owners of their equipment Our warranty registration fulfills this requirement Please make Manufacturer reserves the right to modify without notice specifi
20. flat 35 0211 plastic battery box for small gel cell sealed battery 35 0203 12V sealed battery SECTION Wiring Parts Wiring Harness 4 1 4 5 Wiring Circuits 4 6 Used on these models BE 3 5 BE 3 5A BE 5 BE 5P BE 6P BE 5A BE 7 BE 5BL BE 6BL BE 7 Model B 1T uses its own harness p n 39 0201 not shown o u m 397220 7 pole RV nose lead not shown Note Line up arrows on harness for proper installation 390011 4 way trailer end lead only with 12 wire 1 31 35 91 66 2 4 m p n 390016 4 truck end g E lead only with 48 wire 2 5 u m a Zw 5 e ND B zN ie 5 5 5 2 5 395005 6 pole trailer plug only a gt a B E 3 2 m r a n m 29 a a Z 2 m Bo 2 2 m 3 5 5 I x gt o nm 2 mo m I z m e a Ei Y 5 2 e M m e U xD o 3 9 M m w S gt 9 55 2 MS on r Mr z m mo gt gt o m z gt oz x e 4 of gt n m 4 gt gt r rm m m y9 SSINAVH v2l 6 0114 91 Neid x2 9011 Nad X2 397202 locking ring not shown 4 1 Harness iring W Used on these models B 1 75T B 2 5T B 3 5P B 5P B 5 B 6
21. lever 311324 r h adjuster lever 311325 adjuster spring 311326 l h adjuster assembly 311327 adjuster assembly 311328 dust shield 311329 brake mounting bolt 316027 wire grommet 311368 adjuster clip barrel end 311367 adjuster clip thread end 311330 brake mounting nut 311331 brake mounting lockwasher 2 14 9K 10K General Duty Electric Brake 12 1 4 x 3 3 8 Item Part 310929 brake assembly 310931 brake assembly 310903c shoe and lining kit 310901 shoe and lining kit 311007 h actuator arm assembly 311009 h actuator arm assembly 311015 h arm shoe retainer 311017 h arm shoe retainer 311011 magnet kit centering spring adjuster cable l h adjuster lever adjuster lever adjuster spring l h adjuster assembly r h adjuster assembly dust shield brake mounting screw wire grommet 311367 adjuster clip thread end 311368 adjuster clip barrel end 311353 brake mounting nut 311354 brake mounting lockwasher 311518 return spring 2 15 Description QRS Wheels and Tires Part tire only ST175 80R x 13 load range C 27 0050 tire only ST205 75R x 15 load range C 27 0020 tire only ST225 75R x 15 load range D 27 0090 tire only 235 85R x 16 load range E 27 0044 tire only 245 75R x 16 load range E
22. parking Tire Safety Checklist Check tire pressure regularly at least once a month including the spare Inspect tires for uneven wear patterns on the tread cracks foreign objects or other signs of wear or trauma Remove bits of glass and foreign objects wedged in the tread Make sure your tire valves have valve caps Check tire pressure before going on a long trip Do not overload your vehicle Check the Tire Information and Loading Placard or User s Manual for the maximum recommended load for the vehicle More information may be found at http www natm com 1 19 Tilt Loading Instructions This decal p n 455108 is located on the left side of your trailer This decal says that after loading your trailer the equipment or load being transported shall not be behind this point Equipment or load being transported on models with single axle shall be a minimum of 3 feet from rear of deck and a minimum of 4 feet from rear of deck on models with tandem axles C UB DBIS U Decal p n 455109 is located on DANGER the top of the left fender of your trailer models B 1T B 1 75T B 2 5T B 5T B 6T and B 7T only DO NOT Load Behind This Point 1 20 SEC TION 2 Axle Parts 2 2K Hub and Axle 2 1 3 5K Hub Drum and Axke non E Z lube 2 2 3 5K Hub Drum Axles E Z Lube 2 3 6K and 7K Hub Drum Axles non E Z lube 2 4 6K Hub Drum and Axles E Z lube 2 5 7 2K Hub Dr
23. propane also need to be considered The weight of fully filled propane containers is considered part of the weight of the trailer before it is loaded with cargo and is not considered part of the disposable cargo load Water however is a disposable cargo weight and is treated as such If there is a fresh water storage tank of 100 gallons this tank when filled would weigh about 800 pounds If more cargo is being transported water can be off loaded to keep the total amount of cargo added to the vehicle within the limits of the GVWR so as not to overload the vehicle Understanding this flexibility will allow you the owner to make choices that fit your travel needs When loading your cargo be sure it is distributed evenly to prevent overloading front to back and side to side Heavy items should be placed low and as close to the axle positions as reasonable Too many items on one side may overload a tire The best way to know the actual weight of the vehicle is to weigh it at a public scale Talk to your dealer to discuss the weighing methods needed to capture the various weights related to the trailer This would include the weight empty or unloaded weights per axle wheel hitch or king pin and total weight Excessive loads and or underinflation cause tire overloading and as a result abnormal tire flexing occurs This situation can generate an excessive amount of heat within the tire Excessive heat may lead to tire failure It is the air pressure th
24. 6 0018 1 2 lock washer 36 0008 1 2 nut 36 0019 1 2 x 1 1 2 bolt Miscellaneous Parts 370014 3 8 x 40 gr 70 safety chain 14 000 Ib 20 000 Ib capacity 370002 40 gr 70 safety chain 24 000 Ib 30 000 Ib capacity 370013 40 gr 80 safety chain 40 000 Ib capacity models 370006 5 8 x 40 gr 80 safety chain 50 000 Ib capacity models 061379 C 10 tie down Q Y 370812 mud flaps generic 370003 3 8 x 40 gr 43 safety chain 12 000 Ib capacity amp smaller one pair 10 x 10 050482 stake pocket 370009 1 D ring with clip 123995 stake pocket C 10 C 2T 370008 3 4 D ring with clip 370011 D ring only 050221 stake pocket 1 x 3 7 stakes 4 deep 1 4 matl see 050222 for 3 16 matl RS 124050 spare tire mount 120246 spare tire mount T 10T 123998 stake pocket bolt on 123999 stake pocket bolt on 060900 stak ket 7 T 14DD 120247 spare tire mount T 12T for T 10P sides for T 10P headboard THISEIBOCKON 120248 spare tire mount T 14T 160215 spare tire mount 6 bolt ref 060432 3 x 2 sides 060385 3 x 3 sides j 160220 8 bolt ref 060433 120253 spare tire mount C 8 C 10 123807 C 8 C 10 160205 spare tire mount 6 bolt replaces 060704 8 bolt T 10P 6 bolt ref 060431 060425 with 235 tires 6 bolt 160210 8 bolt ref 060429 160225 spare tire mount T 14DD 5 8 studs only ref 060457 160235
25. 62006 L H 162007 R H shown B 6B BE 5P BE 5BL wood top auto latch 121200 161930 L H 161931 R H shown B 5P 5 ft punch top auto latch 121452 51 32 10 89 161900 L H E 161901 R H shown B 5P 4 ft wood top auto latch 121265 162000 L H 162001 R H shown B 6B punch top full width auto latch 121203 5 3 161550 L H 161551 121528 shown B 6DDB BE 5P BE 5BL cleat style auto latch 161940 L H 161941 R H shown B 5P 6 ft punch top auto latch 121453 37 11 NN 4 60 161340 L H shown 161341 B 2 5TSL full width f b hold up punch top 123817 37 12 NEN 161310 L H shown 161311 R H B 2 5TSL B 5TSL punch top auto latch 124129 18 87 1882 19 26 160185 L H 14 85 160186 R H shown cleat style auto latch 5 ft BE 5 B 5 B 5LS 121701 160200 L H 160201 R H shown BE 7 only cleat style auto latch 5 ft 121703 4 ch sides 16 95 XXX FERRE TAM NM NEMO ANN NN NOI TM WORD AM ORAN OH ANM MOM NU QM M M MAIN INN UN TEXTE YT EY YT EY VETT TY ETT YYYYYYYTYYYYYYYTYYY 2 AVR CEA AANI VAYA DOOR DOCOMO OOK BERB COCK DON DOO D U in MAM UJ ANNAM NOM NO QN ND UN TON MO QNNM MU NN ERY SVAN NONO NFL IM MON NM MA M MANT IM KAKA LAANDAA MA MU AM d Lai hrec vers
26. B low pro 82 deck 5 5 EA Fenders and Light Boxes 120263 r h shown 120262 l h B 7 y E 120257B r h shown 120257A l h B 8B 120347B r h shown 120347A I h B 1 75T B 2 5T B 3 5P B 5P lt gt 120251 r h shown 120251A I h B 7B 120524B r h shown 120524A I h B 6B 120526B r h shown 120526A I h B 9B 120822B r h shown 120822A B 8PRS 74 frame 80 wide deck 120474B r h shown 120474A I h 9 69 frame 82 wide deck 061953 side front light bracket for 6 beam Qo 120255B r h shown 120255A I h B 8 74 frame 82 wide deck A o 123952B r h shown 120372B r h shown 120372A B 9 no bvt 123952A BE 5BL BE 6BL 120759B r h shown 120759A I h B 8PRS B 9PRS E 120764B r h shown 1207644A I h B 9B 69 frame 80 wide deck 120770B r h shown 120770A h B 7B 74 frame 82 wide deck N lt 1207628 r h shown 120762A I h B 6B 120285B r h shown 120285A I h B 7 120331B r h shown 120331A I h B 8 69 frame 80 wide deck 120766B r h shown 120766A I h B 8B 74 frame 82 wide deck a 060883 front marker light bracket B 1T BE 5P q 062032 side front light A 062956 5 6 B 7T specify or r h side light bracket 060880 rear light bracket old style BE 5P 060881 rear light bracket with square 060482 side fro
27. Decals Warnings and Cautions P n 450036A 1 x 6 450037A 5 x 26 p n 455000 6 397 8481 bigtowtrailers com DANGER AVOID SERIOUS INJURY OR DEATH Feed 9 Ramps can cause serious injury or death Closed position must be used whenever trailer is attached to tow vehicle e Stay clear of DANGER AREA La posici n cerrada debe ser ulizada siempre que el acoplado se una al when raising and lowering ramps veh culo del remolque e Stand at side of trailer when in operation or in use Read operation and maintenance manual for further instructions 450029 453227 p n 452705 Brown White Blue ped Slotted To adjust ramps to ellow Red stand in the Green j VE Trailer Plug Truck Receptacle Truck Receptacle Trailer Plug trans po rt posi tion D p n 39 5005 p n 39 5006 p n 39 9025 p n 39 9023 loosen nut and white ground brown tail clearance side marker brown tail lights and license plate lights bolt in slotted black accessory white ground blue brakes black accessory hole move ramp green right turn blue electric brakes HE yellow left turn yellow left turn to desired position and tighten nut and NOTE The contacts are identified by looking into the open end of either Nut and bolt bolt the truck receptacle or trailer plug 6 amp 7 pole 451407 p n 451240 ATTENTION A green brake is
28. Step 4 If the tire pressure is too low note the difference between the measured tire pressure and the correct tire pressure These missing pounds of pressure are what you will need to add Step 5 At a service station add the missing pounds of air pressure to each tire that is underinflated Step 6 Check all the tires to make sure they have the same air pressure except in cases in which the front and rear tires are supposed to have different amounts of pressure If you have been driving your vehicle and think that a tire is underinflated fill it to the recommended cold inflation pressure indicated on your vehicle s tire information placard or certification label While your tire may still be slightly underinflated due to the extra pounds of pressure in the warm tire it is safer to drive with air pressure that is slightly lower than the vehicle manufacturer s recommended cold inflation pressure than to drive with a significantly underinflated tire Since this is a temporary fix don t forget to recheck and adjust the tire s pressure when you can obtain a cold reading 1 5 5 Tire Size To maintain tire safety purchase new tires that are the same size as the vehicle s original tires or another size recommended by the manufacturer Look at the tire information placard the owner s manual or the sidewall of the tire you are replacing to find this information If you have any doubt about the correct size to choose consult with the tire dealer
29. an ingrained unburnished brake Normal manufacturing tolerances dictate that p n 452925 Registration Holder there is a break in period required after which the lining will seat into a perfect concentric situation During this break in period the user must be aware that additional brake adjustments will be mandatory to 451240 Parts and Service Manual enclosed To receive an additional 6 months warranty of MAIN FRAME only return your warranty registration within 14 days See dealer Decals Warnings and Cautions Decal Kits For complete decal kits please specify trailer model deck length and paint color Part number Model 451749 451750 451751 451752 451754 451756 451758 451760 451762 451650 451654 451670 451675 451710 451691 451685 451695 451712 451713 451697 451698 451699 451700 451705 451710 451765 451766 B 2 5TSL BE 3 5 BE 5P BE 5 BE 6 BE 5A 7 BE 5BL 7 4 Portions of this manual were used with the expressed authority of Dexter Axle but Dexter Axle is not responsible for the accuracy of the information contained herein Big Tow Quality Big Tow Dependability Employee Owned p American Pride American Made Big Tow trailers U S Hwy 12 Litchfield MN 55355 866 397 8481 Parts Dept Fax 320 693 5703 www bigtowtrailers com Big Tow Trailers has a complete line of trailers small pans and tilts Manufacturer reserves the right to mod
30. and provides the connection between the non pneumatic rim and the vehicle or in the case of a non pneumatic tire assembly not incorporating a wheel a mechanical device which attaches either integrally or separably to the non pneumatic tire and provides the connection between tire and the vehicle Wheel holding fixture The fixture used to hold the wheel and tire assembly securely during testing 1 14 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued 1 4 Tire Safety Everything Rides On It The National Traffic Safety Administration NHTSA has published a brochure DOT HS 809 361 that discusses all aspects of Tire Safety as required by CFR 575 6 This brochure is reproduced in part below It can be obtained and downloaded from NHTSA free of charge from the following web site http www nhtsa dot gov cars rules TireSafety ridesonit tires_index html Studies of tire safety show that maintaining proper tire pressure observing tire and vehicle load limits not carrying more weight in your vehicle than your tires or vehicle can safely handle avoiding road hazards and inspecting tires for cuts slashes and other irregularities are the most important things you can do to avoid tire failure such as tread separation or blowout and flat tires These actions along with other care and maintenance activities can also Improve vehicle handling Help protect you and others from avoidable breakdowns and accidents
31. at enables a tire to support the load so proper inflation is critical The proper air pressure may be found on the certification VIN label and or on the Tire Placard This value should never exceed the maximum cold inflation pressure stamped on the tire 1 1 1 Trailers 10 000 Pounds GVWR or Less 9 TIRE AND LOADING INFORMATION kg Ibs The weight of cargo should never exceed sze COLD TIRE PRESSURE See owners front NETT me 45 XXXX 1 Locate the statement The weight of cargo should never exceed XXX kg or XXX Ibs on your vehicle s placard See figure 1 1 2 This figure equals the available amount of cargo and luggage load capacity 3 Determine the combined weight of luggage and cargo being loaded on the vehicle That weight may not safely exceed the available cargo and luggage load capacity The trailer s placard refers to the Tire Information Placard attached adjacent to or near the trailer s VIN Certification label at the left front of the trailer 1 1 2 Trailers Over 10 000 Pounds GVWR Note These trailers are not required to have a tire information placard on the vehicle 1 Determine the empty weight of your trailer by weighing the trailer using a public scale or other means This step does not have to be repeated 2 Locate the GVWR Gross Vehicle Weight Rating of the trailer on your trailer s VIN Certification label 3 S
32. battery box lid only stainless steel battery box bottom and lid license plate i d light tow charger break a way switch marker light mounting grommet 2 2 round recessed mount marker light mounting grommet 2 round recessed mount BE 5P DDB amp BL tailboard only amber marker light 2 2 round amber marker light 2 round L E D red marker light 2 round 39 2740 red marker light 2 round L E D red marker light 2 round BE 5P DDB amp BL tailboard onl 39 0156 red marker light 2 round L E D BE 5P DDB amp BL tailboard only 39 3001 tail light mounting grommet 39 3003 tail light 39 2760 tail light L E D 39 3022 tail light mounting grommet 4 1 2 round 39 3016 tail light 4 1 2 round 39 3016A tail light 4 1 2 round L E D 35 0909 Carlisle brake controller 39 3008 license plate i d light pop in style 35 0230 battery for Carlisle system 39 3019 1 tri light bar 39 6240 remote switch for Carlisle system 39 3013A r h tail light replaces 39 3013 amp 39 3029 BE 1T only 35 1808 break away battery charger system 39 3015A Lh tail light replaces 39 3015 amp 39 3028 BE 1T only 35 1810 battery box for Carlisle system 39 3017A tail light replacement lense only 39 3025A side light replacement lense only 39 3021 amber front marker light 39 3023 amber front marker light replacement lense only 39 0051 adapter 7 way RV receptacle to 4 way flat 39 0056 adapter 6 way round to 4 way
33. c designs and specifications as deemed advisable on the trailers described herein without obligation in regards to trailers previously sold The manufacturer also reserves the right to discontinue any model or models without obligation in regards to trailers previously sold Written warranty covers each 1 1 Payload Ratings ALL PAYLOAD RATINGS ARE AT 55 M P H Trailers are NOT shipped with BRAKE CAB CONTROL equipment Contact our parts department for information on specialized controllers All payload ratings are approximate and will vary slightly with the actual finished trailer weight Please see detail specifications for exact Gross Vehicle Weight Rating GVWR Trailer payload capacity is defined as the GVWR less the actual trailer weight Please note that this payload capacity is a maximum to not be exceeded and may only be achieved when the trailer is carefully loaded so that the hitch bears its full rated load Payload capacity will be reduced if the trailer is loaded such that the hitch bears less than its full rated loading Care should be taken that moving the load back to reduce hitch weight does not overload the axles and tires The certification tag on the trailer tongue lists the Gross Axle Weight Rating GAWR which is the maximum total weight allowed on the axles tires Total axle tire weight allowed is the GAWR times the number of axles The tag also lists the GVWR The required hitch weight at full load is the difference of
34. cessive speed underinflation or excessive loading either separately or in combination can cause heat build up and possible tire failure From highest to lowest a tire s resistance to heat is graded as A B or C 1 18 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued 1 5 9 3 Additional Information on Light Truck Tires Please refer to the following diagram Load Range Severe snow P dii Light Truck line Maximum load and inflation information and load inflation limits Tires for light trucks have other markings besides those found on the sidewalls of passenger tires LT The LT indicates the tire is for light trucks or trailers ST An ST is an indication the tire is for trailer use only Max Load Dual kg Ibs at kPa psi Cold This information indicates the maximum load and tire pressure when the tire is used as a dual that is when four tires are put on each rear axle a total of six or more tires on the vehicle Max Load Single kg Ibs at kPa psi Cold This information indicates the maximum load and tire pressure when the tire is used as a single Load Range This information identifies the tire s load carrying capabilities and its inflation limits 1 6 Tire Safety Tips Preventing Tire Damage Slow down if you have to go over a pothole or other object in the road Do not run over curbs or other foreign objects in the roadway and try not to strike the curb when
35. d regular production options weighing over 2 3 kilograms 5 lbs in excess of those standard items which they replace not previously considered in curb weight or accessory weight including heavy duty brakes ride levelers roof rack heavy duty battery and special trim Radial ply tire A pneumatic tire in which the ply cords that extend to the beads are laid at substantially 90 degrees to the centerline of the tread Recommended inflation pressure This is the inflation pressure provided by the vehicle manufacturer on the Tire Information label and on the Certification VIN tag Reinforced tire A tire designed to operate at higher loads and at higher inflation pressures than the corresponding standard tire Rim A metal support for a tire or a tire and tube assembly upon which the tire beads are seated Rim diameter This means the nominal diameter of the bead seat Rim size designation This means the rim diameter and width 1 13 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued Rim type designation This means the industry of manufacturer s designation for a rim by style or code Rim width This means the nominal distance between rim flanges Section width The linear distance between the exteriors of the sidewalls of an inflated tire excluding elevations due to labeling decoration or protective bands Sidewall That portion of a tire between the tread and bead Sidewall separation The parting
36. dard items which may be replaced of automatic transmission power steering power brakes power windows power seats radio and heater to the extent that these items are available as factory installed equipment whether installed or not Bead The part of the tire that is made of steel wires wrapped or reinforced by ply cords and that is shaped to fit the rim Bead separation This is the breakdown of the bond between components in the bead Bias ply tire A pneumatic tire in which the ply cords that extend to the beads are laid at alternate angles substantially less than 90 degrees to the centerline of the tread Carcass The tire structure except tread and sidewall rubber which when inflated bears the load Chunking The breaking away of pieces of the tread or sidewall Cold inflation pressure The pressure in the tire before you drive Cord The strands forming the plies in the tire Cord separation The parting of cords from adjacent rubber compounds Cracking Any parting within the tread sidewall or inner liner of the tire extending to cord material CT A pneumatic tire with an inverted flange tire and rim system in which the rim is designed with rim flanges pointed radially inward and the tire is designed to fit on the underside of the rim in a manner that encloses the rim flanges inside the air cavity of the tire 1 11 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued Curb weight The weigh
37. de that must always face outward when mounted on a vehicle Light truck LT tire A tire designated by its manufacturer as primarily intended for use on lightweight trucks or multipurpose passenger vehicles Load rating The maximum load that a tire is rated to carry for a given inflation pressure Maximum load rating The load rating for a tire at the maximum permissible inflation pressure for that tire Maximum permissible inflation pressure The maximum cold inflation pressure to which a tire may be inflated Maximum loaded vehicle weight The sum of curb weight accessory weight vehicle capacity weight and production options weight Measuring rim The rim on which a tire is fitted for physical dimension requirements Pin Weight The downward force applied to the 5th wheel or gooseneck ball by the trailer kingpin or gooseneck coupler Non pneumatic rim A mechanical device which when a non pneumatic tire assembly incorporates a wheel supports the tire and attaches either integrally or separably to the wheel center member and upon which the tire is attached Non pneumatic spare tire assembly A non pneumatic tire assembly intended for temporary use in place of one of the pneumatic tires and rims that are fitted to a passenger car in compliance with the requirements of this standard 1 12 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued Non pneumatic tire A mechanical device which transmits either
38. directly or through a wheel or wheel center member the vertical load and tractive forces from the roadway to the vehicle generates the tractive forces that provide the directional control of the vehicle and does not rely on the containment of any gas or fluid for providing those functions Non pneumatic tire assembly A non pneumatic tire alone or in combination with a wheel or wheel center member which can be mounted on a vehicle Normal occupant weight This means 68 kilograms 150 Ibs times the number of occupants specified in the second column of Table of 49 CFR 571 110 Occupant distribution The distribution of occupants in a vehicle as specified in the third column of Table of 49 CFR 571 110 Open splice Any parting at any junction of tread sidewall or innerliner that extends to cord material Outer diameter The overall diameter of an inflated new tire Overall width The linear distance between the exteriors of the sidewalls of an inflated tire including elevations due to labeling decorations or protective bands or ribs Ply A layer of rubber coated parallel cords Ply separation A parting of rubber compound between adjacent plies Pneumatic tire mechanical device made of rubber chemicals fabric and steel or other materials that when mounted on automotive wheel provides the traction and contains the gas or fluid that sustains the load Production options weight The combined weight of those installe
39. e 31st week of 1997 The other numbers are marketing codes used at the manufacturer s discretion This information is used to contact consumers if a tire defect requires a recall Tire Ply Composition and Materials Used The number of plies indicates the number of layers of rubber coated fabric in the tire In general the greater the number of plies the more weight a tire can support Tire manufacturers also must indicate the materials in the tire which include steel nylon polyester and others Maximum Load Rating This number indicates the maximum load in kilograms and pounds that can be carried by the tire Maximum Permissible Inflation Pressure This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions 1 5 9 2 UTQGS Information Treadwear Number This number indicates the tire s wear rate The higher the treadwear number is the longer it should take for the tread to wear down For example a tire graded 400 should last twice as long as a tire graded 200 Traction Letter This letter indicates a tire s ability to stop on wet pavement A higher graded tire should allow you to stop your car on wet roads in a shorter distance than a tire with a lower grade Traction is graded from highest to lowest as AA A B and Temperature Letter This letter indicates a tire s resistance to heat The temperature grade is for a tire that is inflated properly and not overloaded Ex
40. e every effort to get you back up and running and keep your ownership as trouble free as possible Contact Information Big Tow Trailers 61381 U S Hwy 12 Litchfield MN 55355 800 462 4517 Toll Free 320 693 7921 Company Fax 866 239 2221 Parts Department www bigtow com Thank you Big Tow Trailers Table of Contents Read and understand complete manual before using trailer SECTIDN 7 Trailer Information SECTION Z Axle Parts SECTION 3 Tongue Parts SECTION GF Wiring Parts SECTION 5 Ramps amp Fenders SECTION amp Misc Parts SECTION 7 Decals SEC TION 7 Warranty information 1 1 Payload Ratings 1 2 Towing Tips and Checklist 1 3 Reporting Safety Defects 1 4 Maintenance and Operating Instructions 1 5 1 8 GVWR and Tire Safety Information 1 9 1 10 Tilt Loading Instructions 1 11 Big Tow Trailer Limited Warranty Limited Warranty Manufacturer warranties each new product manufactured by us to be free from defects in material and workmanship for a period of one year from date of delivery to the original purchaser Warranty starts from the date of sale as long we receive the filled out warranty card If we do not receive the warranty card warranty starts from the ship date of the trailer Our obligation under this warranty is to replace free of charge at our factory or at the dealer s place of business any part proven defective within the time limit of this warranty This warranty does not
41. e ring 33 2809 12 0342 33 0029 replacement outer tube assembly for goosenecks 33 0028 2 5 16 coupler inner section only 33 0027 2 5 16 coupler complete assembly 30 000 Ib capacity 33 0030 2 king pin assembly inner section only 33 0032 inverted 5th wheel assembly inner section only 45 8206 decal warning hitch extension FOR USE w P N 120340 OR 120342 nut 5 8 n c grade 8 washer 5 8 lock grade 8 bolt 5 8 x 1 1 2 n c gr 8 bolt 5 8 x 2 1 4 n c gr 8 bolt 5 8 x 4 1 2 n c gr 8 Item Part 35 2090 Hydraulic Actuator DA10 Description 10 000 Ib actuator complete assembly w plate 35 2103 top wear pad old style without notch gt top wear pad new style with notch bottom wear pad old style without notch gt bottom wear pad new style with notch damper shock front shock pin connecting pin 5 32 x 1 1 2 cotter pin rear shock pin 1 gt 01 PO 5 16 external tooth lock washer emergency lever push rod assembly master cylinder replacement master cylinder gasket 1 8 pipe 3 16 inverted flare fitting master cylinder cap 3 32 cable with hooks on both ends 35 3910 plate only actuator mount spacer block 35 2030 emergency lever guard not shown
42. ermining Correct Load Limit Tow Vehicle Section 1 3 contains a Glossary of Tire Terminology including cold inflation pressure maximum inflation pressure recommended inflation pressure and other non technical terms Section 1 4 contains information from the NHTSA brochure entitled Tire Safety Everything Rides On It This brochure as well as the preceding subsections describes the following items Tire labeling including a description and explanation of each marking on the tires and information about the DOT Tire Identification Number TIN Recommended tire inflation pressure including a description and explanation of A Cold inflation pressure B Vehicle Placard and location on the vehicle C Adverse safety consequences of under inflation including tire failure D Measuring and adjusting air pressure for proper inflation E Tire Care including maintenance and safety practices Vehicle load limits including a description and explanation of the following items A Locating and understanding the load limit information total load capacity and cargo capacity B Calculating total and cargo capacities with varying seating configurations including quantitative examples showing illustrating how the vehicles cargo and luggage capacity decreases as combined number and size of occupants increases This item is also discussed in Section 3 C Determining compatibility of tire and vehicle load ca
43. free backing Item Part 3 5K Hub Drum and Axles E Z lube hub and drum assembly Description 25 0002 grease seal 25 3510 inner bearing cone 25 3512 inner race 25 6161 1 2 drive in stud 25 3518 outer race 25 3520 outer bearing cone 25 3522 spindle washer 25 3532 tang washer not shown 25 3524 25 3528 spindle nut jam nut nut retainer grease cap 25 3530 grease cap plug 37 0701 1 2 cone wheel nut not shown 23 0015 Complete axles 3 5k axle electric Pan 23 0017 3 5k axle hydraulic Pan 23 0017F 3 5k axle hydraulic free backing Pan 23 0012 3 5k axle electric Tilt 23 0014 3 5k axle hydraulic Tilt 23 0014F 3 5k axle hydraulic free backing Tilt 6K and 7K Hub Drum and Axles non E Z lube Note 6K 6 bolt assembly is shown please indicate 6K 7K 6 bolt or 8 bolt when ordering Item Part 25 6000 6K hub and drum assembly 6 bolt 25 5005 6K 7K hub and drum assembly 8 bolt 25 0005 grease seal 2 25 i d 25 6010 inner bearing cone 25 6012 inner race 25 6161 1 2 drive in stud 25 6018 outer race 6 bolt outer race 8 bolt outer bearing cone 6 bolt outer bearing cone 8 bolt spindle washer spindle nut jam nut nut retainer grea
44. ify without notice specific designs and specifications as deemed advisable on the trailers described drop deck trailers deck over models large tilts and detachable herein without obligation in regards to trailers previously sold The manufacturer also reserves the right discontinue models gooseneck trailers See your Big Tow Trailers dealer or visit the without obligation in regards to trailers previously sold Written warranty covers each trailer No other warranty expressed or implied is made website for more information Warranty on tires and brakes through original manufacturer All dimensions approximate 47 2501 10 2007
45. imensions of fenders in use we must have the following dimensions and information when replacement fenders are ordered Dim A Length bottom Dim B Length top Dim C Height Dim D Width Dim E Inner panel height Model and year of trailer Does it have light hole s in fender front rubber mounted light hole bolt on style light ba E B 4 A 41506 6 s RH 063790 LH 063791 A 75 50 BE 76 25 P n RH 063290 LH 063291 B 7 B7B 10 75 76 25 P n RH BY peg 33 00 875 lL 45 e ues h p n 060513 BE 1T p n 062276RH 062276LH B 1 75T B 3 5T NE 07 21 38 9 75 76 25 RH 063830 LH 063831 BE 3 5 BE 5 BE 6 BE 5BL BE 6BL B 5DD B 6DD BE 7 E 75 50 19 79 P n LH120750 I h Shown RH 120752 B 5T B 6T B 7T Pr a Dep sasda P n LH 120834 shown RH 120835 B 5T B 6T B 7T 062798 LH 062797 BE 5P spring axle 6 56 J va 13 58 Er 42 lt L 10 75 75 50 gt P n RH 064532 LH 064533 B 9DDB low pro 1 deck 051 987 4 x 18 56 7 75 50 9 75 P n RH 063438 LH 063439 B 8PRS B 9PRS 80 deck gt P n RH 064530 LH 064531 B 8 B 8B B 9 B 9
46. ke 10 x 2 1 4 Free Backing Item Part Z 31 3705 complete brake assembly I h 31 3710 complete brake assembly r h 31 3610 screw and washer assembly brake cylinder brake cylinder r h push rod travel link shoe and lining kit shoe lever return spring retractor spring adjusting screw spring adjuster assembl brake mounting nut lock washer dust plug shoe lever lock nut screw shoe return spring 2 10 6K 7K Electric Brake 12 x 2 Item _Part 31 6001 6K complete assembly 31 6003 6K complete assembly r h 31 1434 complete assembly 31 1436 7K complete assembly r h 31 6005 shoe and lining kit 31 1432 shoe and lining kit 7K 31 3507 dust plug pkg of 4 31 6011 actuating lever arm 31 6013 actuating lever arm r h 31 6015 magnet kit 6K magnet kit 7K hold down springs adjuster assembly adjuster screw spring retractor spring one pair anchor post washer wire grommet lock washer brake mounting nut 2 11 6K Hydraulic Brake 12 x 2 Free Backing Item Part 31 6305 complete brake assembly I h 31 6310 complete brake assembly r h 31 3610 screw and washer assembly 31 3606 brake cylinder 31 3608 brake cylinder r h 31 6370 push rod 31
47. le systems are designed to carry Both placards and certification labels are permanently attached to the trailer near the left front 1 5 2 Understanding Tire Pressure and Load Limits Tire inflation pressure is the level of air in the tire that provides it with load carrying capacity and affects the overall performance of the vehicle The tire inflation pressure is a number that indicates the amount of air pressure measured in pounds per square inch psi a tire requires to be properly inflated You will also find this number on the vehicle information placard expressed in kilopascals kpa which is the metric measure used internationally 1 15 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued Manufacturers of passenger vehicles and light trucks determine this number based on the vehicle s design load limit that is the greatest amount of weight a vehicle can safely carry and the vehicle s tire size The proper tire pressure for your vehicle is referred to as the recommended cold inflation pressure As you will read below it is difficult to obtain the recommended tire pressure if your tires are not cold Because tires are designed to be used on more than one type of vehicle tire manufacturers list the maximum permissible inflation pressure on the tire sidewall This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions 1 5 3 Checking Tire Pressu
48. ller in tow vehicle KEEP THEM TIGHT For proper performance all new axles should have the following checked at the specific intervals Wheel Nut Torque Upon delivery at 10 25 and 50 miles and weekly thereafter KEEP THEM TIGHT Brake Adjustment At 200 miles and 3 000 miles and every 3 000 miles thereafter Tire Pressure Upon delivery and per tire manufacturer s requirements 450009A frequently Use only grade 8 bolts and nuts on hitch This trailer with ELECTRIC BRAKES requires an electric Load must be secured according to D O T standards maximum payload capacity and proper towing Check hitch bolts Trailer must be towed level or slightly higher 1 to 2 in front Follow DOT Federal Motor Carrier Safety Regulations 392 9 393 100 and 393 102 Trailer tongue is rated to transfer 20 2596 of gross weight to achieve OVERLOAD HAZARD Risk of death due to loss of control Never exceed gross vehicle weight rating GVWR BEFORE LOADING TRAILER THE FIRST TIME YOU MUST VERIFY ITS CARGO CAPACITY 1 You must weigh the empty trailer 2 subtract the weight of the empty trailer from the maximum loaded trailer weight GVWR see VIN Serial No Tag 3 DO NOT LOAD TRAILER BEYOND CAPACITY MAXIMUM CARGO WEIGHT 4 PLUS WEIGHT OF EMPTY TRAILER GVWR 453323 with all Federal D O T requirements Load must be secured according to D O T standards Follow DOT Federal Motor Carrier Safety
49. models Drop Deck Tilts STANDARD DECK LATCH NON STATIONARY AND STATIONARY DECKS AS OF 02 06 Item Part Description 08 1246 Latch tube 08 1303 Latch tube For B 8T Only 08 1244 Shaft lock collar 06 6500 Latch 08 1245 Latch pivot tube 06 6499 Latch adjustment plate 06 6498 Latch Handle 06 1796 Latch lock spring keeper 06 0993 Latch lock 06 1029 Latch handle mount 37 0230 Lock pin WARNING gt S O CO TILT DECK When releasing deck locking lever stay clear of deck area when loading amp unloading When deck is in down position make sure safety pin for deck locking lever is in lock position Failure to unhook platform latch prior to unloading equipment will cause trailer damage and may cause bodily injury or death 450269 6 2 Deck Cushion Cylinder and Pivot Pins Used on these models Drop Deck gt 5000LBS Cap Add A Deck Tilts Use ATF oil or equivalent Description cylinder pin 4 cylinder pin 6 1 2 cushion cylinder 3 1 2 x 8 lynch pin 37 0266 seal kit Pivot Pins Used on these models Drop Deck gt 5000LBS Cap Add A Deck Tilts p n 070031 1 7 stress proof x 8 pivot pin Deck Cushion Cylinder Used on these models 3000 5000 LBS Cap Tilts 3000 LBS Tilt 612 080701 TUBE 2 063146 LOWER MOUNT 070204 PIN
50. n period the user must be aware that additional brake adjustments will be mandatory to achieve optimum braking performance 1 7 Maintenance and Operating Instructions IWARNINGS Be sure trailer is connected to tow vehicle when loading and unloading machinery Lock tow vehicle brakes BEFORE loading and unloading Use wheel chocks when loading or unloading trailer Check tire inflation daily See tire chart Check wheel nuts weekly maintain proper torque Check master cylinder fluid level weekly Hyd brakes Trailer should be level when fully loaded If trailer is low in front when loaded adjust coupler to make level or slightly higher in front Use caution when trailer is being loaded or unloaded DO NOT place hands or feet under ramps when raising or lowering 1 8 GVWR and TIRE SAFETY INFORMATION General A recent law was enacted that requires trailer manufacturers to place a tire and loading information decal placed near the serial tag on a trailer as well as detailed information on loading and tires in the owner s manual on all trailers with a GVWR Gross Vehicle Weight Rating of 10 000 Ibs or less This section of our manual covers the required information Tire and Safety Information This portion of the User s Manual contains tire safety information as required by 49 CFR 575 6 Section 1 1 contains Steps for Determining Correct Load Limit Trailer Section 1 2 contains Steps for Det
51. ng washer 3 16 rivet 3 16 1 4 lynch pin w chain 37 0235 roll pin 5 16 x 1 1 2 roll pin 5 16 x 3 16 0070 ramp rod 1 x 38 72 07 0037 16 0073 16 0072 ramp rod full width pan trailers ramp rod full width 1 x 83 07 0213 DD 16 0024 stress proof ramp rod 1 1 2 x 33 07 0018 large DD 16 0027 stress proof ramp rod 1 1 2 x 29 1 07 0042 large DD 37 0545 ramp helper spring 3 8 for 1 ramp rod B 5P 37 0550 ramp helper spring 3 8 for 1 ramp rod only old style small DD 37 0555 37 0590 37 0622 ramp helper spring 3 8 for 1 ramp rod r h only old style small DD I ing 3 8 for 1 ramp rod large DDB s ramp helper spring 5 8 for 1 ramp rod full width ramp small DD models 37 0592 ramp helper spring 5 8 for 1 ramp rod large DD s w o beavertail 37 0560 ramp helper spring 3 8 for 1 ramp rod I h new style small DD 37 0561 3 8 for 1 ramp rod r h new style small DD 06 6895 latch handle mount auto latch BE 10 B 5DD LH 06 6221 latch handle mount auto latch BE 10 B 5DD 06 3118 latch handle mount BE 5BL BE 6BL models specify l h or r h 06 1918 latch handle mount BE 5LS BE 6LS only specify l h or r h 36 0406 5 8 washer 36 0132 5 8 11UNC x 2 1 4 GR 8 Nut 36 0033 5 8 Jam Nut
52. ng on trailer and tow vehicle for proper operation Adjust brake controller electric brakes as necessary for proper braking Make sure running lights are on 10 Make sure deck is clear of all debris before loading and before heading out onto the road 11 Secure cargo or equipment to trailer secure load all 4 corners if possible do not over tighten binders 12 Secure all loading ramps deck latches tilt models and make sure jack stand is in up position and stow chock blocks 13 After traveling a short distance stop and check to see if your load is secure and that all tie downs are tight 14 Allow for greater braking distance when pulling a trailer and generally travel at slower speeds 1 3 Reporting Safety Defects Big Tow Trailers INC 61381 U S Hwy 12 Litchfield MN 55355 Reporting Safety Defects If you believe that your vehicle has a defect which could cause a crash or could cause injury or death you should immediately inform the National Highway Traffic Safety Administration NHTSA in addition to notifying Big Tow Inc If NHTSA receives similar complaints it may open an investigation and if it finds that a safety defect exists in a group of vehicles it may order a recall and remedy campaign However NHTSA cannot become involved in individual problems between you your dealer or Towmaster Inc To contact NHTSA you may either call the Auto Safety Hotline toll free
53. nside the tire that surrounds the puncture hole Punctures through the tread can be repaired if they are not too large but punctures to the sidewall should not be repaired Tires must be removed from the rim to be properly inspected before being plugged and patched 1 5 9 Tire Fundamentals Federal law requires tire manufacturers to place standardized information on the sidewall of all tires This information identifies and describes the fundamental characteristics of the tire and also provides a tire identification number for safety standard certification and in case of a recall 1 5 9 1 Information on Passenger Vehicle Tires P The P indicates the tire is for passenger vehicles Next number This three digit number gives the width in millimeters of the tire from sidewall edge to sidewall edge In general the larger the number the wider the tire Next number This two digit number known as the aspect ratio gives the tire s ratio of height to width Numbers of 70 or lower indicate a short sidewall for improved steering response and better overall handling on dry pavement R The R stands for radial Radial ply construction of tires has been the industry standard for the past 20 years Next number This two digit number is the wheel or rim diameter in inches If you change your wheel size you will have to purchase new tires to match the new wheel diameter Next number This two or three digit number is the tire s load index It i
54. nt light bracket B 1 75T B 2 5T 060446 side front light bracket for 10 beam bracket for 10 beam 2 bends 5 6 2 hole B 1T specify Lh or r h lt 120823B r h Shown 120823A I h B 9PRS 69 frame 80 wide deck 120831B r h shown 120831A B 9PRS 69 frame 82 wide deck m 1202858 r h shown 120285A B 7 74 frame 82 wide deck 120331B r h shown 1203314 I h B 8 74 frame 82 wide deck sy 120476B r h shown 120476A I h BE 5P CE 120760B r h shown 120760A BE 5 B 5 marker light 060876 rear light bracket specify or r h OEC TION Misc Parts Deck Latch 6 1 6 2 Deck Cushion Cylinder and Pivot Points 6 3 6 4 Winch Mount 6 5 Bucket Stop 6 6 Misc Parts 6 7 Deck Latching System For Models Pan Tilts 2000LBS Cap Tilt only 16 0004 complete latch assembly less hook and bar 36 0305 u bolt 37 0232 handle grip 12 0066 latch handle 37 0230 w chain 07 0024 swivel rod 36 0002 3 8 ny lock nut 06 0216 latch mount quantity 2 assembly 36 0004 3 8 x 1 1 4 gr 5 bolt 06 0236 latch hook 05 0140 bangboard bar 36 0021 1 2 ny lock nut fine thread 16 0005 complete latch assembly less hook and bar slanted handle 2000LBS Cap Tilt Deck Latching System Small Tilt Used on these
55. of the rubber compound from the cord material in the sidewall Special Trailer ST tire The ST is an indication the tire is for trailer use only Test rim The rim on which a tire is fitted for testing and may be any rim listed as appropriate for use with that tire Tread That portion of a tire that comes into contact with the road Tread rib A tread section running circumferentially around a tire Tread separation Pulling away of the tread from the tire carcass Treadwear indicators TWI The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread Vehicle capacity weight The rated cargo and luggage load plus 68 kilograms 150 lbs times the vehicle s designated seating capacity Vehicle maximum load on the tire The load on an individual tire that is determined by distributing to each axle its share of the maximum loaded vehicle weight and dividing by two Vehicle normal load on the tire The load on an individual tire that is determined by distributing to each axle its share of the curb weight accessory weight and normal occupant weight distributed in accordance with Table of CRF 49 571 110 and dividing by 2 Weather side The surface area of the rim not covered by the inflated tire Wheel center member In the case of a non pneumatic tire assembly incorporating a wheel a mechanical device which attaches either integrally or separably to the non pneumatic rim
56. ose connections or improper wiring between tow vehicle and trailer PARKING JACK Check jack for any physical damage or improper operation due to corrosion Replace if severely damaged or rusted Check bolts for tightness daily and be sure the lock washers and or lock nuts are used TIE DOWN RINGS Check daily for physical damage to D ring clips or welds and replace or repair immediately SUSPENSION BOLTS After an initial break in period of 150 miles and periodically thereafter every 1000 miles all bolts and nuts should be rechecked for proper torque Check eye bushings in springs for wear and replace any part if wear shows DECK CUSHION CYLINDER Use ATF oil or equivalent Tilt models only 1 5 Maintenance and Operating Instructions COUPLER TOW RING Inspect visually if coupler shows excessive wear it should be replaced TOW RING Inspect for tightness daily before use Ring plate must be tight against hitch plate to prevent plate deformation If ring shows excessive wear it should be replaced immediately Double nut bottom bolts 4 bolt pintle ring TOW RING INSTALLATION 1 Determine proper tow ring height according to tow vehicle 2 Install tow ring with secondary support bolt in lower position whenever possible 3 Tighten nuts on both bolts until lock washers are fully compressed 4 Do not use tow ring with a hitch which is excessively loose or that binds when trailer turns 5 Double nut l
57. ower bolts BRAKE CONTROLLER Check controller daily for proper operation both automatic with tow vehicle foot pedal and manually Replace if defective or damaged Adjust for proper braking effect for load being towed Trailer braking should be adjusted so that trailer brakes react and apply at the same time as tow vehicle brakes come on never after tow vehicle brakes MAGNETS Check at any indication of braking problems at brake replacement at bearing inspection or any time a hub is pulled Magnets should be replaced if bare wire is showing at wear surface surface of magnet is gouged scored or magnet is worn unevenly BRAKE CLEANING INSPECTION Your trailer brakes must be inspected and serviced at yearly intervals or more often as use and performance requires Magnets and shoes must be changed when they become worn or scored thereby preventing adequate vehicle braking Clean the backing plate magnet arm magnet and brake shoes Make certain that all the parts removed are replaced in the same brake and drum assembly Inspect the magnet arm for any loose or worn parts Check shoe return springs hold down springs and adjuster springs for stretch or deformation and replace if required ASBESTOS DUST HAZARD Since some brake shoe friction materials contain asbestos certain precautions need to be taken when servicing brakes 1 Avoid creating or breathing dust 2 Avoid machining filing or grinding the brake linings 3 Do not use com
58. pabilities D Adverse safety consequences of overloading on handling and stopping on tires 1 1 Steps for Determining Correct Load Limit Trailer Determining the load limits of a trailer includes more than understanding the load limits of the tires alone On all trailers there is a Federal certification VIN label that is located on the forward half of the left road side of the unit This certification VIN label will indicate the trailer s Gross Vehicle Weight Rating GVWR This is the most weight the fully loaded trailer can weigh It will also provide the Gross Axle Weight Rating GAWR This is the most a particular axle can weigh If there are multiple axles the GAWR of each axle will be provided If your trailer has a GVWR of 10 000 pounds or less there is a vehicle placard located in the same location as the certification label described above This placard provides tire and loading information In addition this placard will show a statement regarding maximum cargo capacity Cargo can be added to the trailer up to the maximum weight specified on the placard The combined weight of the cargo is provided as a single number In any case remember the total weight of a fully loaded trailer can not exceed the stated GVWR 1 9 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued 1 1 Steps for Determining Correct Load Limit Trailer continued For trailers with living quarters installed the weight of water and
59. pressed air or dry brushing for cleaning Dust can be removed with a damp brush 1 6 Maintenance and Operating Instructions BRAKE ADJUSTMENT Brakes should be adjusted 1 after the first 200 miles of operation when the brake shoes and drums have seated 2 at 3000 mile intervals 3 or as use and performance requires The brakes should be adjusted in the following manner Jack up trailer and secure on adequate capacity jack stands Do not lift or place supports on any part of the suspension system Check that the wheel and drum rotate freely 2 Remove the adjusting hole cover from the adjusting slot on the bottom of the brake backing plate 3 With a screwdriver or standard adjusting tool rotate the starwheel of the adjuster assembly to expand the brake shoes Adjust the brake shoes out until the pressure of the linings against the drum makes the wheel very difficult to turn With drop spindle axles a modified adjust ing tool with about an 80 degree angle should be used 4 Rotate the starwheel in the opposite direction until the wheel turns freely with a slight lining drag 5 Replace the adjusting hole cover and lower the wheel to the ground Repeat the above procedure on all brakes A green brake is an unground unburnished brake Normal manu facturing tolerances dictate that there is a break in period required after which the lining will seat into a perfect concentric situation During this break i
60. re It is important to check your vehicle s tire pressure at least once a month for the following reasons Most tires may naturally lose air over time Tires can lose air suddenly if you drive over a pothole or other object or if you strike the curb when parking With radial tires it is usually not possible to determine underinflation by visual inspection For convenience purchase a tire pressure gauge to keep in your vehicle Gauges can be purchased at tire dealerships auto supply stores and other retail outlets The recommended tire inflation pressure that vehicle manufacturers provide reflects the proper psi when a tire is cold The term cold does not relate to the outside temperature Rather a cold tire is one that has not been driven on for at least three hours When you drive your tires get warmer causing the air pressure within them to increase Therefore to get an accurate tire pressure reading you must measure tire pressure when the tires are cold or compensate for the extra pressure in warm tires 1 5 4 Steps for Maintaining Proper Tire Pressure Step 1 Locate the recommended tire pressure on the vehicle s tire information placard certification label or in the owner s manual Step 2 Record the tire pressure of all tires Step 3 If the tire pressure is too high in any of the tires slowly release air by gently pressing on the tire valve stem with the edge of your tire gauge until you get to the correct pressure
61. s a measurement of how much weight each tire can support You may find this information in your owner s manual If not contact a local tire dealer Note You may not find this information on all tires because it is not required by law M S The M S or M S indicates that the tire has some mud and snow capability Most radial tires have these markings hence they have some mud and snow capability 1 17 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued Speed Rating The speed rating denotes the speed at which a tire is designed to be driven for extended periods of time The ratings range from 99 miles per hour mph to 186 mph These ratings are listed below Note You may not find this information on all tires because it is not required by law Letter Rating Speed Rating Q 99 mph R 106 mph 5 112 mph 118 mph 0 124 mph H 130 mph V 149 mph W 168 mph Y 186 mph For tires with a maximum speed capability over 149 mph tire manufacturers sometimes use the letters ZR For those with a maximum speed capability over 186 mph tire manufacturers always use the letters ZR U S DOT Tire Identification Number This begins with the letters DOT and indicates that the tire meets all federal standards The next two numbers or letters are the plant code where it was manufactured and the last four numbers represent the week and year the tire was built For example the numbers 3197 means th
62. se cap 6 bolt grease cap 8 bolt 25 6016 cotter pin 37 0701 1 2 cone wheel nut not shown Complete axles 23 0003 axle 6k rubber ride electric 23 0013 axle 6k rubber ride hydraulic 23 0013F axle 6k rubber ride hydraulic free backing axle 7k rubber ride electric BE 7 axle 6k spring 4 drop electric axle 6k spring 4 drop hydraulic axle 6k spring 4 drop hydraulic free backing axle 6k rubber ride electric 45 deg down BE 5LS BE 6LS only axle 7k rubber ride electric 45 deg down BE 7LS only 6K Hub Drum and Axles E Z lube e Note 6 bolt assembly is shown please indicate 6 or 8 bolt when ordering Item Part Description 25 6005 hub and drum assembly 6 bolt 25 5005 hub and drum assembly 8 bolt 25 0005 grease Seal 2 25 i d 25 6010 inner bearing cone 25 6012 inner race 25 6161 1 2 drive in stud 25 6018 outer race 25 6020 outer bearing cone 6 bolt 25 9015 outer bearing cone 8 bolt 25 3522 spindle washer tang washer not shown spindle nut 25 1526 jam nut 25 1524 nut retainer 25 6028 grease cap 6 bolt 25 5010 grease cap 8 bolt 25 3530 grease cap plug 37 0701 1 2 cone wheel nut not shown Complete axles 23 0007 6k axle rubber ride electric 10 deg up 6 bolt 8 bolt 23 2507 23 0009 6k axle rubber ride hydraulic
63. spare tire mount T 16DD Se 5 8 studs only ref 060481 124034 spare tire mount 124036 spare tire mount 124042 spare tire mount T 14DDB BL bolt on style C 10 bolt on style 123975 tool box hinge 123880 t ol box hinge 123977 tool box lid bolt on style T 10P 030300 tool box bottom only T 10P use with hinge 123975 126263 tool box lid bolt on ur C 10 x 7 use with hinge 123975 123971 tool box lid bolt on style T 10T a a T 12T T 14T use with hinge 123975 124173 tool box lid bolt on style 123969 tool box lid bolt on style pre 8 2 04 use lid 123978 T 16T use with hinge 123975 T 16PRS T 18PRS use with hinge 123975 375011 hubodometer 376072 registration holder 123979 tool box lid bolt on style T 14DD 060737 hubodometer mounting 123982 tool box lid bolt on style T 16DD bracket 6 bolt hubs only 123984 tool box lid bolt on style T 18DDB all 3 use with hinge 123980 Not shown 360025 5 16 x 2 1 4 torque decking screw 360216 3 screw 6 7 SECTION Decals 7 1 7 3 Decal Kits 7 4 Decals Warnings and Cautions TILT DECK When releasing deck locking lever stay clear of deck area when loading amp unloading When deck is in down position make sure safety pin for deck locking lever is in lock position Failure to unhook platform latch prior to unloading equipment will cause trailer damage and may cause bodily injury or death 450269 brake contro
64. t of a motor vehicle with standard equipment including the maximum capacity of fuel oil and coolant and if so equipped air conditioning and additional weight optional engine Extra load tire A tire designed to operate at higher loads and at higher inflation pressures than the corresponding standard tire Groove The space between two adjacent tread ribs Gross Axle Weight Rating The maximum weight that any axle can support as published on the Certification VIN label on the front left side of the trailer Actual weight determined by weighing each axle on a public scale with the trailer attached to the towing vehicle Gross Vehicle Weight Rating The maximum weight of the fully loaded trailer as published on the Certification VIN label Actual weight determined by weighing trailer on a public scale without being attached to the towing vehicle Hitch Weight The downward force exerted on the hitch ball by the trailer coupler Innerliner The layer s forming the inside surface of a tubeless tire that contains the inflating medium within the tire Innerliner separation The parting of the innerliner from cord material in the carcass Intended outboard sidewall The sidewall that contains a white wall bears white lettering or bears manufacturer brand and or model name molding that is higher or deeper than the same molding on the other sidewall of the tire or the outward facing sidewall of an asymmetrical tire that has a particular si
65. t u 2 555 S 9 a m gt 552 w gt 599 an eo AN Sn lt Es Oo ES ber e D 2 EN v r S zx gt c m w Ae SR wor a ms a gt EX m 5 i gt a T gt a Aw D 1 E M 4 gt gt Old v m to 397202 locking ring not shown 4 3 Harness iring W Used on these models B 5T B 6T B 7T COMPLETE WIRING HARNESS P N 397088 PLI MDe 4X 180 FEMALE BRN 397220 7 pole RV nose lead not shown TM23 6 POLE 6 12GA PLUG MD7A 40 6 12GA WHT RING A JUNCTION BOX BRN 5X W 15 BREAKERS 10 RINGS 10x BLU PL10 397158 397160 397162 FRT NOSE HARNESS FRONT MAIN HARNESS REAR MAIN HARNESS BRAKE LEADS NOTE CONNECT ALL WIRES COLOR TO COLOR UNLESS OTHERWISED SPECIFIED NOT TO SCALE DRAWING 395005 6 pole trailer plug only 390046 RV trailer plug only Note Line up arrows on harness for proper installation 399023 7 pole trailer plug only MD9C PL10 PL10B PL10A MD2 397164 REAR HARNESS PLIOB ex BRN 397202 locking ring not shown 4 4 Wiring Circuits Note Locate wires by function only Color coding is not standard among all manufacturers 6 Pole 7 Pole USA HARNESS Electric Brakes Only White Brown Brown White Black Black Blue Blue Green Yellow
66. the GVWR and the sum of the GAWR s Payload capacity will also be reduced by the addition of any options or changes that increase the trailer weight When selecting a trailer always allow a capacity safety margin to account for non uniform loading growth in load and accessories weight and the multitude of other unforeseen circumstances that occur in equipment transportation 1 2 Towing Tips and Check List Know and follow all state local D O T towing and tie down laws that pertain to the load trailer combination that is to be towed If you have any questions contact your local law enforcement or D O T before towing OK NO 1 Check over all condition of trailer tie downs ramps hitch for proper operation 2 Make sure the trailer coupler and towing coupler are the same size and proper capacity 3 Back tow vehicle up to trailer and hook up Using a spotter is the easiest method 4 Trailer must be connected to tow vehicle before loading or unloading 5 Lock tow vehicle brakes before loading and unloading trailer and use chock blocks 6 After connected to tow vehicle make sure trailer is level or slightly higher in front adjust as needed 7 Attach safety chains cross them electrical plug break a way switch electric brakes and make sure they are not dragging 8 Check for proper tire pressure on trailer and tow vehicle 9 Check all lighti
67. ubtract the empty weight of your trailer from the GVWR stated on the VIN label That weight is the maximum available cargo capacity of the trailer and may not be safely exceeded 1 10 GVWR and TIRE SAFETY INFORMATION Tire and Safety Information Continued 1 2 Steps for Determining Correct Load Limit Tow Vehicle 1 Locate the statement The combined weight of occupants and cargo should never exceed Ibs on your vehicle s placard 2 Determine the combined weight of the driver and passengers who will be riding in your vehicle 3 Subtract the combined weight of the driver and passengers from XXX kilograms or XXX pounds 4 The resulting figure equals the available amount of cargo and luggage capacity For example if the XXX amount equals 1400 Ibs and there will be five 150 Ib passengers in your vehicle the amount of available cargo and luggage capacity is 650 Ibs 1400 750 5 x 150 650 Ibs 5 Determine the combined weight of luggage and cargo being loaded on the vehicle That weight may not safely exceed the available cargo and luggage capacity calculated in Step 4 6 If your vehicle will be towing a trailer load from your trailer will be transferred to your vehicle Consult the tow vehicle s manual to determine how this weight transfer reduces the available cargo and luggage capacity of your vehicle 1 3 Glossary Of Tire Terminology Accessory weight The combined weight in excess of those stan
68. um and Axle 2 6 8K Hub Drum and Axles 2 8 9K 10K Generall Duty Hub and Drum 2 9 3 5K Electric Brake 2 10 3 5K Hydraulic Brake 2 11 6K 7K Electric Brake 2 12 6K Hydraulic Brake 2 13 7 2K Electric Brake 2 14 8K Electric Brake 2 15 9K 10K General Duty Electric Brake 2 16 Tires and Wheels 2 17 2 2K Hub and Axle 25 7258 complete hub assembly 6 1 2 hub flange 25 7271 grease seal 1 987 1 50 i d 25 3520 inner outer bearing 25 3518 inner outer race 25 7273 screw in stud 1 2 dia 25 3518 inner outer race 25 3520 inner outer bearing 25 3524 spindle nut 25 6016 cotter pin 25 3526 grease cap drive in 1 986 o d jam nut nut retainer 25 7275 axle less hubs 23 0070 complete axle assembly not shown 37 0701 1 2 cone wheel nut not shown 3 5K Hub Drum and Axle non E Z lube Description 25 3500 complete hub drum assembly 25 0002 grease seal 25 3510 inner bearing cone 25 3512 inner race 25 6161 1 2 drive in stud 25 3518 outer race 25 3520 outer bearing cone 25 3522 spindle washer 25 3524 spindle nut 25 6016 cotter pin grease cap 25 1524 nut retainer 25 0011 axle only 3 500 Ib Torflex less hubs drums 37 0701 1 2 cone wheel nut not shown Complete axles axle 3 5k electric axle 3 5k hydraulic 23 0011F axle 3 5k hydraulic
69. wheel nut not shown Complete axles 23 0030 complete axle assembly rubber ride electric brakes DD PRS 23 0036 complete axle assembly rubber ride hydraulic brakes DD PRS 9K 10K General Duty Hub and Drum 25 0900 complete hub assembly does not include drum 25 0901 unitized oil seal 3 88 o d 2 875 i d 25 1019 inner bearing 25 1017 inner race 25 0909 hub only 25 8032 5 8 flange wheel nut B 9DDB B 9PRS 25 1011 5 8 cone wheel nut 25 1023 wheel retaining ring 25 1015 5 8 drive in stud 25 6012 outer race outer bearing 25 1021 kit includes cap o ring and 23 0035 10 000 Ib Torflex axle electric brakes DDB PRS 23 0037 10 000 Ib Torflex axle hydraulic brakes DDB PRS 3 5K Electric Brake 10 x 2 1 4 Item Part Description 31 3501 complete assembly I h 31 3503 complete assembly r h 31 3505 shoe and lining kit 31 3507 dust plug pkg of 4 31 3509 brake mounting bolt 31 3511 actuating lever arm l h 31 3513 actuating lever arm r h 31 3515 magnet kit 31 3517 hold down springs 31 3519 adjuster assembly 31 3521 adjuster screw spring retractor spring one pair 31 3525 anchor post washer OF Co ly 3 5K Hydraulic Bra
70. y for 10K top wind jack 10K top wind jack with 6 formed brackets 12K top wind jack only 12K drop leg jack only long 12K drop leg jack with 6 angle iron brackets side wind 12K drop leg jack with 8 angle iron brackets side wind with bolts for 25K Jost jack 25K 2 speed jack 25K 2 speed jack with 2 x 2 x 8 long angle iron brackets 25K 2 speed jack with 5 x 3 x 8 long angle iron brackets 12K top wind jack 6 vertical brackets B 8PRS B 9PRS stabilizer jack 12K top wind jack 8 vertical brackets large DD s 12K top wind jack 6 formed brackets rear pull pin for B 5P 12K top wind jack 6 formed brackets left hand pull pin small DD models B 5T gt B 7T 3 2 Hitches and Couplers AWARNING For hitch extension only DO NOT use for hitch height adjustment Use all mounting bolts to mount to hitch plate 458206 Item Part 2 ball coupler for 3 square repair kit for 2 ball coupler 33 7042 2 ball coupler cast 2 bolt repair kit for 2 cast ball coupler 33 0006 2 5 16 ball coupler fits inside adjustment channel 2 ball coupler fits inside adjustment channel repair kit for 2 ball coupler and 2 5 16 ball couplers 33 0015 2 5 16 ball coupler 4 bolt 25 000 Ib capacity Wallace Forge 33 0035 2 5 16 ball coupler 25 000 Ib capacity 33 0004 2 1 2 i d pintle ring 4 bolt pintl

Drop-Deck (Fender) Models

Contents

Download Pdf Manuals

Related Search

Related Contents