Owners Manual A-60, 75 & 84:Owners Manual A
Contents
1. A WARN NG working properly the cap button is up and cap is in the normal TOW position If cap does not reset or work properly remove cap from trailer If you do not remove a cap that does not work it may cause the trailer brakes not to work properly BACKING T FIGURE 9 BRAKE LOCKOUT CAP Automatic Brake Lockout An automatic brake lockout is recommended if the trailer has disc brakes Whenever you back up a 12 volt electrical signal from the tow vehicle backup light circuit energizes the pressure control unit Hydraulic pressure is prevented from building up so the brakes will not come on The electrical control may also be used with drum brakes To change the existing master cylinder in the actuator will have to be replaced Call UFP if you want to make this change PARKING AFTER USE After parking the trailer ALWAYS move the coupler A CAUTI ON all the way forward by hand to keep moisture from coming in contact and corroding the master cylinder bore If trailer has been in salt water rinse off trailer and flush out the brake drums or rotors with fresh water 11 If you are not skilled in the following procedures we A CAUTI ON recommend you contact your dealer for this service If you have any questions contact our customer service department at 760 744 1610 PERIODIC INSPECTION AND MAINTENANCE In order to ensure efficient operation the following checkpoints should be2. paint inside coupler cavity Reposition tow vehicle and trailer or block trailer tire and extend actuator Lubricate or replace parts as necessary If the latch handle does not close freely DO NOT tow WARN the trailer until cause of the problem is located and eliminated Forcing latch handle closed will make opening latch handle extremely difficult PROBLEM squEAKING CLUNKING AND CLATTERING AT ACTUATOR POSSIBLE CAUSE REMEDY Hitch ball requires lubrication Lubricate with conventional multipurpose lubricant or commercial lubricant made for hitch balls Loose hitch ball Inspect hitch ball and tighten Loose hitch Inspect hitch and repair Loose mounting bolts if equipped Inspect brake actuator mounting bolts and tighten as necessary 70 80 ft lbs A worn or too small hitch ball Replace hitch ball with a quality unit that meets SAE specifications Worn shock absorber Replace shock absorber Air in brake lines allowing actuator to Check for leaks re bleed brakes travel too far Trailer is equipped with free backing Clunking noise is typical for these types brakes of brakes as long as braking performance is normal PROBLEM WHEN BRAKING BRAKES REPEATEDLY COME ON AND RELEASE BREAKING IS NOT SMOOTH THIS CONDITION IS CALLED CHUCKING Worn out shock absorber in actuator Replace the shock absorber Loose hitch or hitch ball Correct as necessary Not enough tongue weight or shock
3. troubleshoot brakes POSSIBLE CAUSE REMEDY Drum brakes misadjusted Adjust brakes properly Trailer stored with actuator compressed Remove brakes Clean repair or replace rust has caused both brakes to freeze up components as necessary Inadequate brakes for towed load or If you have a tandem axle trailer add a driving conditions second set of brakes Pinched or kinks in brake lines Check brake lines and replace as necessary 19 If fluid does NOT move Brake system is remaining pressurized and there is an actuator problem Troubleshoot actuator POSSIBLE CAUSE REMEDY Pulled breakaway cable pushrod not Reset breakaway cable install clip reset For each of the following the actuator inner member must be removed Follow the instruction in HOW TO TAKE APART AND ASSEMBLE THE ACTUATOR Fluid return hole in master cylinder Troubleshoot clogged or mispositioned Replace parts as necessary Corrosion in master cylinder freezing up piston or not allowing it to fully retract usually caused by railer stored with actuator compressed Other malfunction or damage keeping the master cylinder piston from retracting 20 HOW TO TAKE APART AND ASSEMBLE THE ACTUATOR DISMANTLING ACTUATOR Note Read and understand this section before attempting to disassemble inner member 1 Extend actuator and remove cap from top 2 Unscrew brake line fitting from rear of master cylinder Note Brake fluid escaping from ma
4. Brake Lockout Cap 1 operate lockout the actuator must be fully extended This can be done by pulling the trailer forward slowly 2 With the lockout cap in the TOW forward position depress the button in the front of the cap and rotate the cap clockwise toward the BACKING position until it stops The button should remain down 3 Back the trailer 10 4 the trailer needs to be pulled forward there are two options a Pull the trailer forward and let the coupler move forward The control cap will rotate reset and you will have to turn it back to the BACKING position in order to back up b If you have backed up an incline allow the tow vehicle to move forward slowly so the coupler stays back This keeps the control in the engaged BACKING position so you can back up again After the trailer is removed from the tow vehicle after A WAR N N G backing up block the trailer wheels and move the coupler all the way forward by hand This will remove the lockout and moved the cap to the TOW position BE CAREFUL if trailer is parked downhill it may roll forward Remove Brake Lockout Cap 1 Make sure the coupler is moved all the way forward 2 With the cap in the TOW position press the button and rotate the cap counterclockwise toward the REMOVE position until it stops 3 Lift the cap up to remove it and gain access to the master cylinder reservoir Before towing trailer be sure that the lockout cap is
5. observed annually or every 2000 miles whichever occurs first 1 Inspect tow hitch per tow hitch manufacturer s instructions for corrosion or damage Repair or replace components as necessary Check for wear on hitch ball Ball diameter must be in the range of 1 970 2 000 A 60 amp A 75 or between 2 282 2 312 A 84 when measured in all directions If ball is worn it is UNSAFE and must be replaces It could cause improper brake performance separation of ball and actuator or noisy and jerky trailer operation Check coupler latch operation for excessive wear and fit on ball Check fit on ball as outlined in Coupler section of the Safety Checks Before Towing Section A loose fit may allow coupler portion of actuator and A WARNING 4 Check coupler mechanism for smooth operation If button is hard to push or latch handle does not spring open after being disengaged lubricate points on coupler latch mechanism indicated by arrows in Figure 12 A 60 only ARROWS INDICATE LIGHT OIL OR FRONT VIEW BOTTOM VIEW LATCH OPEN FIGURE 10 COUPLER LUBRICATION POINTS Check actuator for excessive wear If the outer member is rubbing against the inner member wear marks will show on top coupler just forward of outer member Contact factory for replacement parts Check actuator travel Excessive actuator travel over one inch when brakes are applied indicates a need to adjust th
6. 6 hitch ball with a rating equal to or greater than the trailer GVWR The 2 5 16 ball must be within the limits of 2 282 2 312 diameter when measured in all directions Hitch balls may be purchased from your dealer or UFP HITCH HEIGHT For proper tow vehicle and trailer hookup and towing performance the tow vehicle and trailer are to be level with respect to the ground after hitching up If your trailer is not level equipment is available to raise or lower the hitch ball A weight equalizing hitch or load support suspension equipment may also be required to keep the tow vehicle level and to properly load each axle SAFETY CHAINS Adequate safety chains must be used and conform to the Society of Automotive Engineers SAE J684 standard TRAILER COUPLING AND HITCHES AUTOMOTIVE TYPE The strength rating of EACH length of safety chain A WAR N N must be equal to the trailer GVWR Make sure that your safety chains are fastened to the frame of the trailer and to the hitch or tow vehicle frame Safety chains fastened directly to the hitch ball or to the bumper are not acceptable and will not pass vehicle inspections Connect safety chains using a crossed pattern under the tongue FIGURE 3 TYPICAL DOUBLE SAFETY CHAIN INSTALLATION SWAY CONTROL DEVICES Trailer sway control devices that restrict operation of A the actuator MUST NOT be used These devices can WAR N l N G limit the how much the trailer brak
7. An apparatus attached under the rear of the tow vehicle that transfers the trailer s tongue and towing loads to the tow vehicle HITCH BALL A round ball on a shank attached to the hitch of the tow vehicle used to connect the trailer to the tow vehicle SAFETY CHAINS An assembly which provides a secondary means of connection between the rear of the towing vehicle and the front of the trailer WEIGHT DISTRIBUTING HITCH A device that transmits the tongue load of the trailer from the rear wheels of the tow vehicle to the front wheels of the tow vehicle SOCIETY OF AUTOMOTIVE ENGINEERS SAE J684 STANDARD This SAE Standard includes couplings hitches and safety chains used in conjunction with all types of trailers or towed vehicles whose Gross Vehicle Weight Rating GVWR does not exceed 10 000 Ibs TRAILER SWAY CONTROL DEVICES After market devices intended to eliminate or control the amount of trailer sway side to side movement during towing PUSHROD RELEASE BRACKET A part of the actuator that holds the master cylinder pushrod in the engaged position supplying constant pressure to the trailer brakes when the safety cable has been pulled TONGUE WEIGHT A portion of the total trailer weight that is supported by the coupler LOAD RATING The maximum load that a component or device can safely carry or support without failure BRAKE LOCKOUT CAP An optional device that is located on top of the UFP actuator that allows the tr
8. However if breakaway should occur the clip will be destroyed and should be replaced Spare clips are attached to the cover of this manual To retract the breakaway cable slide the coupler fully forward and push up on the pushrod release bracket located on the underside and behind the hitch ball socket to allow the bead to retract into the actuator This will release the trailer brakes Install new clip on breakaway cable in front of bead INDICATOR BEAD BREAKAWAY CABLE PUSHROD RELEASE BRACKET FIGURE 6 CHECKING AND RESETTING BREAKAWAY CABLE If pushing up on the bracket dose not release the brakes or if it is hard to push insert a pry bar into the 5 16 hole behind the bracket Use pry bar to stroke push rod backwards to relieve load on bracket Push up on bracket and hold up while releasing pry bar The pushrod release bracket should now move freely and brakes should be released figure 7 Check to see if the actuator is reset Extend the actuator fully Remove the cap from the top of the actuator and pull the plug from top of the reservoir cover While looking at fluid in the reservoir manually compress actuator In the first 1 8 of coupler movement the fluid in the reservoir should splash or ripple slightly If it does the actuator is working properly PUSHROD RELEASE BRACKET PUSH UP AND HOLD FIGURE 7 STROKING THE PUSHROD TO RELEASE BRAKES Note If brakes can not be released using
9. LIP Wn 222 COUPLER NOSE PLATE BREAKAWAY SYSTEM RESET Hold Clip with pliers and insert over cable Use a second set of pliers to gently close the opened end of clip Clip should be free to move on cable CLIP PLIERS The breakaway system reset tab must be pushed up A CAUTI ON after clip installation and anytime the cable has been pulled 26 ACTUATOR DEFINITIONS ACTUATOR The device on the front of the trailer which operates the trailer s brakes in proportion to the tow vehicle stopping GROSS VEHICLE WEIGHT RATING GVWR This rating is found on the trailer s identification plate The rating includes the total weight of the trailer and all cargo that it is carrying A 60 ACTUATOR An actuator manufactured by UFP with a maximum trailer GVWR of 6 000 Ibs and maximum tongue load of 750 Ibs A 75 ACTUATOR An actuator manufactured by UFP with a maximum trailer GVWR of 7 500 Ibs and maximum tongue load of 750 Ibs A 84 ACTUATOR An actuator manufactured by UFP with a maximum trailer GVWR of 8 400 Ibs and maximum tongue load of 840 Ibs COUPLER The portion of the actuator that receives and secures the tow vehicle hitch ball during towing MASTER CYLINDER A hydraulic device in the actuator that supplies brake fluid under pressure to the trailer s brakes in proportion to an input force VEHICLE COMBINATION The combination of the tow vehicle and the trailer HITCH
10. OWNER S MANUAL AND USER S INSTRUCTIONS MODELS A 60 A 75 amp A 84 HYDRAULIC BRAKE ACTUATORS Breakaway cable clips TRAILER oe 4 PRODUCTS See installation instructions San Marcos CA Winchester TN in this manual CONTENTS WARNINGS 1 INTRODUCTION 1 HOW TO INSTALL THE 3 TOWING REQUIREMENTS EQUIPMENT 3 HOW TO ATTACH THE 5 SAFETY CHECKS BEFORE TOWING 8 BACKING tenes 10 PARKING AFTER 11 PERIODIC INSPECTION AND MAINTENANCE 12 EXTENDED STORAGE MAINTENANCE 14 BRAKE ADJUSTMENT 15 TROUBLESHOOTING BRAKE PROBLEMS 16 HOW TO TAKE APART AND ASSEMBLE THE ACTUATOR 21 MANUAL BLEEDING OF THE BRAKE SYSTEM 24 HOW TO INSTALL THE BREAKAWAY CABLE CLIP 26 DEFINITIONS vs eave tees ee bas 27 PARTS LIST stn otic teresa 28 WARRANTY Back Cover 11 93 34292 WARNINGS THROUGHOUT THIS MANUAL THE FOLLOWING SIGNAL WORDS AND SYMBOLS ARE USED TO ALERT YOU TO POTENTIAL HAZARDS OBEY ALL MESSAGES AND INSTRUCTIONS FAILURE TO FOLLOW THESE MESSAGES AND INSTRUCTIONS MAY LEAD TO POSSIBLE INJURY OR DEATH DANGER indi
11. above method or if pushrod release bracket will not move it is damaged beyond serviceability Contact UFP for repair parts SAFETY CHECKS BEFORE TOWING FAILURE TO READ AND FOLLOW THESE A WARNING INSTRUCTIONS MAY RESULT IN SERIOUS INJURY OR DEATH ACTUATOR CONDITION Check the actuator and coupler for damage bent parts and excessive wear Replace parts if needed Contact UFP for replacement parts Check that the bolts that attach the actuator if equipped to the trailer are tight COUPLER A WARN NG Check that the coupler latch handle closes down completely when the hitch ball is in the coupler To make sure the coupler is secured to the hitch ball look under the coupler and check Also while the coupler is attached raise the front of the trailer 2 to 4 with the tongue jack If the coupler stays connected it is secure If coupler dose not stay attached try the attachment and attachment check again If coupler will not stay attached to hitch ball or latch opens inadvertently DO NOT TOW TRAILER CONTACT UFP REMEMBER LOWER TRAILER RAISE JACK BEFORE TOWING Note At times the coupler can push on the hitch ball when parked Check to make sure the tongue jack is raised or that you are not parked downhill Correct these conditions then try to open the handle TONGUE WEIGHT A WARN NG It is very important your trailer have 5 to 10 tongue weight when it is loaded and the tongue is lev
12. ads See Figure 1 SHOCK ABSORBER MASTER CYLINDER CUTAWAY VIEW FIGURE 1 ACTUATOR EXTENDED RUNNING POSITION When the tow vehicle slows down the trailer moves toward the tow vehicle The actuator slides over the coupler applying force to the master cylinder piston in direct proportion to how fast the tow vehicle is slowing and how much the trailer weighs The piston moves into the master cylinder building pressure to apply the trailer brakes The shock absorber makes sure the brakes are applied and released smoothly See Figure 2 2 y 2 CABLE OVERLOAD PREAKAWAY SPRING HYDRAULIC PRESSURE TO BRAKES PISTON FIGURE 2 ACTUATOR COMPRESSED STOPPING NOTE You may notice a slight clunk when accelerating from a dead stop or anytime after braking which is normal due to the nature of surge brakes Contact your dealer or UFP if the clunk becomes excessive or if you have any concerns about the performance of your brake system TRAILER BREAKAWAY SYSTEM All actuators must have a way to apply the trailer brakes should the trailer become completely A WAR N N G detached from the towing vehicle The breakaway cable is the third line of defense after trailer separation Before the breakaway cable is pulled the coupler must become detached from the hitch ball and then the safety chains must fail At this time the breakaway cable is pulled which will apply a braking force to the trailer Note The break
13. ailer to be backed up over soft ground or up an incline without fully engaging the trailer brakes BRAKE LOCKOUT BRACKET A device that is inserted into the side of the UFP actuator that allows the trailer to be backed up over soft ground or up an incline without fully engaging the trailer brakes 27 PARTS LIST lt 28 ITEM NO PART NO DESCRIPTION QUANTITY 34021 A 60 Inner Member Primary Assy various Outer Member 35154 Master Cylinder Assembly 34762 Master Cylinder for use w Solenoid 34079 Roller Pin 32262 Retaining Ring 32260 Wear Pad Thin sides 32263 Wear Pad Thick top bottom 34370 Breakaway Cable Assembly 34371 Front Roller A 60 only 32310 Rear Roller 32306 Shock Absorber 35112 Pushrod Assembly 34300 Reservoir Plate Cover 32288 Reservoir Diaphragm 32286 Reservoir Plug 36360 A 60 Latch Replacement Kit 32554 Roller Pin Washer 32291 3 8 16 x 1 00 Bolt 34301 Shock Absorber Bushing 34380 Cable Attachment Plate 32547 Outer Member Cap Plastic 32592 A 60 Top Pad 34355 Breakaway Cable Clip 34378 Pushrod Release Bracket 32546 Pushrod Release Bracket Spring 34545 Hitch Pin Kit Pin Decal amp Retainer 34500 Solenoid Valve with Fittings 34508 Reverse Valve Drain Tube 32269 Nylon Cable Tie 32570 10 32 Mini Barb Fitting 34557 Side Lockout Kit 34359 Top Lockout Upgrade 47720 A 75 Inner Member Primary Assy 47710 A 75 Top Pad 36368 A 75 Latch Replacement Kit 34566 A 75 Hitch Pin K
14. away system is not intended to lock up the trailer brakes after tow vehicle separation but rather to apply just enough braking force to keep the trailer from free wheeling down the road The breakaway system must be reset manually after it has been activated DO NOT USE THE BREAKAWAY SYSTEM AS A PARKING BRAKE 2 HOW TO INSTALL THE ACTUATOR The actuator is to be used only with brakes specifically designed for trailer service It should not be used with any custom built one of a kind brakes because such combinations have not been tested and evaluated The actuator is designed for use with one or two sets of either 10 or 7 drum breaks It can also be used with one set of 8 1 2 or 12 drum brakes The basic actuator may be used with one set of UFP 10 disc or 12 disc brakes A special version is available for operating 2 sets of 8 1 2 drum brakes and 2 sets of UFP 10 disc brakes Contact factory for further information Some trailers do not have adequate brakes for the A WARN NG trailer how it is used or where it is towed Not having adequate trailer brakes will increase stopping distance and cause more lining wear or overheating on your vehicle and trailer You may wish to discuss this subject with your trailer dealer TOWING REQUIREMENTS EQUIPMENT You must match the tow vehicle and trailer Also make sure the hitch hitch ball and safety chain WAR N N ratings match or are greater than t
15. breakaway system has not been set and actuator is fully extended 6 If possible store away from excessive moisture 14 BRAKE ADJUSTMENT Raise one trailer wheel at a time remove the dust cover from the adjusting slot at the lower part of the back side of the brake assembly Insert brake adjusting tool or screwdriver as shown Adjust brake shoes out until wheels will not rotate In the forward direction by moving the end of the adjusting tool toward top of brake as Illustrated When this condition is felt back off loosen the adjustment as follows One set of brakes 10 notches Two sets of brakes 5 notches ADJUSTING SLOT TIGHTEN Ax N R BRAKE ADJUSTING TOOL DUST CLIP REPLACE AFTER ADJUSTMENT FIGURE 12 ADJUSTING BRAKES Note UFP 10 brake drums have a hole on the front side to permit brake lining inspec tion and access to the brake shoe adjustment star wheel Simply remove the trailer wheel to access the inspection hole We recommend that your trailer brakes be adjusted after the first 300 miles of use and at least every 2 000 miles thereafter In addition the trailer brakes should also be Inspected after the first two years of service for wear and corrosion one year after substantial salt water Immersion Service lubricate and or replace parts as necessary for safe sure operation Thereafter set up a maintenance schedule that assures proper Inspection and adjustment of bra
16. cates an imminently hazardous situation which if not avoided will result DAN G E R death or serious injury WARNING indicates a potentially hazardous WARN NG situation which if not avoided will result in death or serious injury CAUTION indicates a potentially hazardous CAUTI ON situation which if not avoided may result in minor or moderate injury CAUTION used without the alert symbol CA UTI indicates a potentially hazardous situation which if not avoided may result in property damage INTRODUCTION Your trailer is equipped with the Model A 60 A 75 or A 84 Hydraulic Brake Actuator Trailer brakes will automatically apply whenever the tow vehicle s brakes are applied They will develop stopping deceleration force in direct proportion to the stopping force generated by the tow vehicle This actuator should only be installed on trailers with a Gross Vehicle Weight Rating GVWR of 6000 Ibs or A WAR N N G less A 60 or GVWR of 7500 Ibs or less A 75 or GVWR of 8400 Ibs or less A 84 The A 60 amp A 75 actuators are designed for use with a 2 hitch Ball The hitch ball and tow vehicle must A WAR N N G be rated to handle the actual Gross Vehicle Weight GVW of the trailer and load A 84 actuator is designed for use with a 2 5 16 ball ACTUATOR The Model A 60 actuator maximum load rating is 6000 pounds the maximum load rating for A 75
17. d HITCH BALL A WARN NG Make sure a hitch ball of proper size and correct load rating is used A film of clean grease on the ball will extend coupler and ball life and stop squeaking Wipe ball clean and renew film periodically TOW VEHICLE HITCH A WARN NG The hitch on the tow vehicle must be of the proper load rating and in good condition If hitch is of the receiver type make sure receiver pull pin is in place and safety pin is installed TRAILER JACK A WARN NG Trailer jack must be fully retracted and caster wheel removed if necessary before towing AUTOMATIC BRAKE LOCKOUT if equipped A WARN NG The electrical lead from the solenoid valve must be connected to the tow vehicle backup lights A click should be heard when the tow vehicle is shifted into reverse and the backup lights come on To check Have someone listen for the sound while driver is in the tow vehicle Keep the emergency brake on and one foot on the brake pedal to avoid accidentally backing up ELECTRICAL WIRING Plug i tor and check signal brake and A WARNING and cheek signal brke an BACKING When you back your car and trailer the coupler will move back and apply the trailer brakes The brakes will apply at different levels depending on how fast you back up the type of brakes the road or surface you are on and the angle of your trailer If your trailer has drum brakes most of the time
18. e brakes not necessary with disc brakes or air in the brake lines 12 Check brake fluid in the master cylinder reservoir To gain access th the reservoir remove the cap on top of the actuator Clean area around master cylinder plug Use a screwdriver to carefully pry off plug Make sure rubber seal around opening is in good condition Clean brake fluid off level indicator on plug Re install and remove plug Brake fluid should just touch the end of the level indicator Check for foam or bubbles in the brake fluid If either are present drain fluid from master cylinder and replace only with new brake fluid of the same type DOT 3 or 4 In order for brakes to function properly all air must be expelled from the brake system If bleeding is necessary follow MANUAL BLEEDING OF THE BRAKE SYSTEM instructions as outlined in this booklet RESERVOIR PLUG FLUID LEVEL INDICATOR FIGURE 11 MASTER CYLINDER RESERVOIR PLUG NOTE It is imperative that the system be filled with only ONE type of brake fluid Different types do not mix DOT 3 and 4 are used by most manufacturers Follow instructions on brake fluid container 10 11 12 Check safety chains and attachment points for damage or wear Repair or replace as necessary Check the breakaway cable for worn or frayed cable strands End fittings should be checked for damage Replace if necessary Check for any hydraulic leaks in the brake system Be sure all tube fittings a
19. el For example a trailer weighing 4 000 pounds MUST have a tongue weight of at least 200 pounds This will help reduce trailer from swaying from side to side fishtailing A bathroom scale can be used to find the tongue weight of the trailer Not having enough tongue weight can cause the trailer to sway from side to side and the coupler to rattle up and down as you go down the road This is very important and if the tongue weight is not in the 5 to 10 range you should move the cargo gas tank anchor fishing tackle cooler from the back to the front or back to front to make sure the tongue weight is in the range On some trailers the axle or axles can be moved to change the tongue weight BREAKAWAY CABLE A WAR N N Check the breakaway cable each time before you tow and at gas and rest stops to make sure it has not been damaged Check the location of the indicator bead and clip The clip should be in place A 60 amp A 75 only and the bead should not be outside the actuator Accidental application will cause brakes to drag and heat up SAFETY CHAINS A WARN NG Make sure that your safety chains are secured to the tow vehicle per the instructions supplied by trailer manufacturer SAE recommendations are listed in Requirements Equipment section FLUID LEVEL A WAR N N G Check the fluid in the master cylinder reservoir each time before you tow or if you see break fluid leakage Refill as require
20. ely free of air bubbles 2 IMPORTANT Before bleeding brake lines bleed the actuator master cylinder Insert a screw driver through hole in bottom of inner member and use short strokes to pry on pushrod while holding safety release bracket up until no air bubbles are seen coming from small orifice hole in the bottom of the master cylinder reservoir 3 Start bleeding procedure the brake furthest from master cylinder 4 Atthe brake assembly connect a transparent bleeder hose to bleed screw fitting on wheel cylinder and submerge free end into a container partially filled with brake fluid Do not reuse this fluid 5 The first person strokes the pushrod slowly while holding safety release bracket up The second person opens the bleed screw fitting He then closes the bleed screw fitting BEFORE the first person SLOWLY releases the pushrod Repeat this procedure until the fluid expelled from the bleeder hose is free of air bubbles Remember to always tighten the bleeder screw before releasing pushrod During this procedure the master cylinder reservoir fluid level must be maintained at no less than 1 2 full 6 Repeat steps 4 and 5 for the other brake and the brakes on the front axle if equipped with tandem brake axles 7 If installation is tandem axle with brakes on both axles repeat bleeding procedure on rear axle brakes for the second time to assure purging of all air in system 8 As a final check after bleeding is completed st
21. es work The coupler must be able to slide freely into and out of the actuator when your vehicle slows down WEIGHT DISTRIBUTING HITCHES Weight distributing equalizing hitches may be used Chain must be vertical straight up and down under pulling load actuator extended Excessive tongue weight beyond actuator rating must be avoided as it will reduce brake performance and could damage the actuator Always follow hitch and weight distributing manufacturer s instructions INCORRECT INCORRECT BRAKES WILL STAY BRAKING INHIBITED STOPPING CAPACITY ON AND OVERHEAT REDUCED ACTUATOR EXTENDED CORRECT _ CHAINS VERTICAL FIGURE 4 TYPICAL WEIGHT DISTRIBUTING HITCH INSTALLATION HOW TO ATTACH THE TRAILER To connect the trailer to the tow vehicle open the coupler mechanism see instructions below and if necessary raise the trailer jack Slowly back up the tow vehicle so that the hitch ball is under the coupler Do not move the trailer to the tow vehicle When the trailer i 4 without at hicle the brakes d ZA WARNING moved without tow vehicle the brakes do If the latch accidentally opens the coupler could detach from the hitch ball The hitch pin should fit easily into the hole Figure 5 If it does not the coupler latch is not completely closed Every time the coupler is attached to the hitch ball make sure the coupler completely covers the hitch ball and the lift handle will not open without push
22. fective at its option Any part found not to be defective will be returned freight collect with an explanation Installation of parts and adjustment of brake systems MUST be performed by a skilled brake mechanic and service manual instructions must be followed Vehicle identification Number VIN The VIN is a 17 digit number located on the trailer identification label The label is located on the left side of the trailer Be sure to include the VIN number in all communications with Warrantor Purchaser s Rights This warranty gives you specific legal rights and you may also have other rights which vary from state to state Product improvement UFP has a policy of continuous product improvement We reserve the right to change or improve the design of our products without assuming an obligation to modify any product previously manufactured TRA ILER orc Bip b 135 Sunshine Lane San Marcos CA 92069 760 744 1610 Fax 760 744 1616 www ufpnet com
23. gh rubber boot and into master cylinder piston 5 Lightly grease rear rollers and hold them in the pockets in the sides of the master cylinder while inserting entire assembly into the inner member from the back end While inserting assembly make sure push rod enters hole in push rod bracket The tab on the safety release bracket will have to be depressed to allow push rod assembly to fully enter hole in push bracket The cable attachment plate should sit flush with the push bracket if properly assembled 6 Make sure breakaway cable is correctly routed and is not wrapped around or hung up on any components 7 While supporting the master cylinder turn inner member assembly over and lightly grease front rollers and insert them through the openings on top of inner member Note Before inserting rollers make sure breakaway cable runs on top of shock absorber eye ring Install top pad on top of the actuator in the roller slots 8 Slide actuator inner member into outer member and line up roller pin holes on rear of actuator first Insert lightly greased roller pin 9 Push or pull inner member to line up holes in rollers with hole in shock absorber eye ring and insert lightly greased roller pin 10 Pull on inner member to the fully extended position With slack taken out of breakaway cable check that the cable clip is in place next to the indicator bead Push up on safety release bracket tab to reset breakaway system 11 Assemble washers a
24. he trailer Gross Vehicle Weight Rating TOW VEHICLE Review the tow vehicle owner s manual and trailering guide for information on towing capacity requirements for brakes use of weight distributing hitches and other towing recommendations Make sure your vehicle combination complies with the Gross Combined Weight Rating GCWR limits specified by the tow vehicle manufacturer BRAKE LAWS Brake laws vary from state to state Be sure you understand and comply with regulations Make sure your vehicle combination has adequate brakes and keep them properly adjusted and in good working condition Brake laws usually set minimum standards You may wish to consider a better braking capability depending on the tow vehicle miles driven and towing terrain HITCH The tow vehicle s hitch must have a rating equal to or greater than the trailer GVWR HITCH BALL The hitch ball must have a rating equal to or greater than the trailer GVWR Use only a quality machined or forged ball with a smooth finish The A 60 amp A 75 actuator coupler will only accept 2 diameter balls Make certain a 2 diameter ball of the correct load rating is used Balls must be within the limits of 1 970 2 000 diameter when measured in all directions Balls larger than 2 000 or out of round will not fit the coupler socket Balls smaller than 1 970 can cause shock loading and a sudden disconnection could result at worse case The A 84 requires a 2 5 1
25. hitch pin hole before towing to prevent the coupler latch opening accidentally See figure 5 DO NOT tow your trailer if latch handle will not remain A WAR N N closed or with the handle open Check to see if coupler is locked by lifting up on the handle without pushing the button to the side before towing If the handle opens the hitch ball is not the right size oversized or eggshaped or the latch parts have been damaged If the latch is damaged contact UFP for replacement parts BREAKAWAY CABLE Secure the breakaway cable to the bumper or frame of tow vehicle as close to center as possible do not attach to safety chains The cable MUST hang clear of the trailer tongue and be long enough to permit sharp turns without pulling the cable and will not be applied unless the safety chains fail Do not loop S hook over breakaway cable to attach it Never tow a trailer without the breakaway cable A WAR N N G secured to the tow vehicle If the breakaway is accidentally pulled and the brakes applied find out why this happened and fix the problem Inadvertent setting of the brakes by pulling the breakaway cable is the single most common mistake users make To prevent light pulls from accidentally setting trailer brakes a small metal clip has been installed on breakaway cable in front of the indicator bead A 60 amp A 75 only The clip will not inhibit the action of the breakaway mechanism during actual breakaway conditions
26. ing the push button to the side A 60 amp A 84 or pulling up on the trigger A 75 If the hitch pin is damaged or lost contact UFP for a free replacement pin You must install either the hitch pin supplied or a padlock 1 4 or 5 16 shank into the hitch pin hole A WAR N N before towing to prevent the coupler latch opening accidentally See figure 5 TO OPEN THE COUPLER A 60 amp A 84 Remove hitch pin from hole in the side of the coupler Push button on top of handle to the side While holding button to the side raise handle by lifting front with two fingers The coupler should unlatch easily If not the ball may be oversized or eggshaped foreign matter could be lodged in coupler ball socket or the coupler is pushing on the hitch ball Check to make sure the wheel on the tongue jack is raised or that you are not parked downhill Correct these conditions then try to open the handle Examples include tongue jack forcing front of trailer up or trailer pushing against tow vehicle Correct as necessary TO CLOSE COUPLER A 60 amp A 84 Place coupler over the ball lower coupler and close handle You will hear a click Handle should close with finger pressure If handle will not close freely ball is not fully inserted into socket is oversized or eggshaped DO NOT FORCE HANDLE If necessary replace ball with a quality unit that meets SAE specifications Insert hitch pin into hole on side of coup
27. is 7500 pounds and the maximum load rating for A 84 is 8400 pounds Models can support a maximum static tongue load of 750 pounds A 60 amp A 75 or 840 pounds A 84 The maximum load rating is for the total weight of the trailer and boat fully loaded including all gear and includes tongue weight Read and familiarize yourself with this handbook Also review and understand the guidelines and requirements for towing published by the tow vehicle manufacturer and the trailer manufacturer Keep this handbook in your tow vehicle or with your trailer for future reference Contact your dealer or our customer service department if additional information is desired You the user are responsible for the consequences of inadequate maintenance deliberate misuse alteration or damage to the actuator 1 Trailer braking is controlled by the actuator mounted on the tongue of the trailer When the tow vehicle brakes are applied the surge or push of the trailer toward the tow vehicle automatically applies and synchronizes the trailer brakes with the tow vehicle brakes The coupler slides into the actuator applying force to a piston inside of a master cylinder which applies the trailer brakes HOW THE ACTUATOR WORKS At constant speed the brake actuator master cylinder piston is in the free extended position and the trailer brakes are not applied The shock absorber controls random application of the trailer brakes when towing on rough ro
28. it A 84 Inner Member Primary Assy A 84 Top Pad A 84 Latch Replacement Kit A 84 Hitch Pin Kit et oe ot d WO OD a b h h m mb 4 lt FIVE YEAR LIMITED WARRANTY A 60 A 75 amp A 84 BRAKE ACTUATOR The actuator is guaranteed against defects in materials and workmanship under normal use and service for a period of five years after the date of trailer purchase by the first owner Limitations of Coverage This warranty does not cover Normal wear and tear including corrosion Damage caused by accidents overload abuse modification or improper use of product This warranty is limited to defective parts replacement only Charges for installing replacement parts damage incurred to other equipment as well as incidental or consequential damages connected therewith are excluded Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitations may not apply to you Repair or Replacement Procedure failure or defect occurs during the warranty period promptly contact warrantor s UFP customer service department Until such notice is received warrantor will not be responsible for any repair or replacement costs UFP at its option may require return of the component in question to the factory transportation charges prepaid UFP will replace FREE OF CHARGE either the entire actuator assembly or the part that proves de
29. kes The time interval should be based on towing conditions operating environment salt vs fresh water etc distance towed storage conditions etc The goal is simple Make sure your brakes will work properly when you need them most in an emergency stop Plated and galvanized brakes are now available and are better able to withstand corrosion HYDRAULIC DISC BRAKE ADJUSTMENT Hydraulic disc brake adjustment is not necessary they are self adjusting 15 TROUBLESHOOTING BRAKE PROBLEMS WARNING If any of the following problems develop the trailer must be immediately stopped and the proper corrective action taken before the trailer is put back into service Failure to do so may lead to loss of proper trailer braking capability or damage to the trailer and load PROBLEM couPLER LATCH HANDLE DOES NOT OPEN CLOSE EASILY POSSIBLE CAUSE Oversize hitch ball Ball not fully inserted in ball socket Trailer and tow vehicle are not level with each other or are facing downhill Excessive corrosion REMEDY A 60 amp A 75 check ball size at several positions ball should be within 1 970 2 000 in diameter A 84 check ball size at several positions ball should be within 2 282 2 312 in diameter Replace if necessary Check for proper ball size see above and positive tongue load Check to see if tongue jack is fully retracted Make sure there are no foreign objects or excessive
30. ler TO OPEN THE COUPLER A 75 Remove hitch pin from hole on side of coupler latch handle While lifting up on latch handle trigger lift up on latch handle until it rotates about 90 degrees and stops The coupler should unlatch easily If not the ball may be oversized or egg shaped foreign matter could be lodged in coupler ball socket or the coupler is pushing on the hitch ball Check to make sure the wheel on the tongue jack is raised or that you are not parked downhill Correct these conditions then try to open the handle Examples include tongue jack forcing front of trailer up or trailer pushing against tow vehicle Correct as necessary TO CLOSE COUPLER A 75 Place coupler over the ball lower coupler and close handle Coupler handle should close with minimal force If handle dose not close ball is not fully inserted into socket is oversized or eggshaped DO NOT FORCE HANDLE If necessary replace ball with a quality unit that meets SAE specifications 2 HITCH PIN HOLE A 75 1 PUSH BUTTON TO SIDE ND LIFT LATCH HANDL oT HITCH PIN Se A 84 FIGURE 5 OPENING COUPLER Visually verify that ball is completely inserted into coupler socket by looking into hole on top of coupler body Insert hitch pin into hole on side of coupler latch handle A WARNING You must install either the hitch pin supplied or A 60 amp A 75 only a padlock 1 4 or 5 16 shank into the
31. nd retaining rings on roller pins 12 Connect brake line fittings and install cap 13 Bleed brake system according to instructions outlined in MANUAL BLEEDING OF THE BRAKE SYSTEM section 22 BREAKAWAY CABLE PUSHROD ASSEMBLY CABLE ATTACHMENT PLATE ROUND END SQUARE END LATCH ASSEMBLY REAR ROLLER SHOCK ABSORBER FRONT ROLLER EYE RING RUBBER BOOT MASTER CYLINDER 2 N q 22 222 ESS PUSHROD ASSEMBLY CABLE GUIDE ROD CABLE ATTACHMENT PLATE PUSH UP WHILE INSERTING PUSHROD BREAKAWAY CABLE ASSEMBLY i PUSHROD ASSEMBLY a ASSEMBLY ee FLUSH GAP BOTTOM VIEW NOTE ORIENTATION OF CABLE ATTACHMENT PLATE IS TOWARD SIDE OF INNER MEMBER FIGURE 13 COMPONENT LOCATION A 60 Inner Member 23 MANUAL BLEEDING OF THE BRAKE SYSTEM If you are not skilled in performing the following A CAUTI ON procedures have a qualified service shop perform the job Check that all hydraulic fittings are secure Read and understand all instructions before starting Two people are required for manual bleeding 1 Remove the master cylinder reservoir plug and fill the reservoir with brake fluid Use either DOT 3 or DOT 4 automotive brake fluid Follow instructions on brake fluid container Avoid shaking brake fluid container and pour fluid slowly to minimize air entrapment Let fluid in reservoir stand until complet
32. re tight Periodic checks must be made on all hoses brake line tubing and fittings to guard against cuts worn hoses and loose fittings which may cause leaks in trailer brake hydraulic system Replace deteriorated and damaged parts as necessary Check brake adjustment not necessary for disc brakes after first 300 miles and every 2000 miles thereafter PROPER ADJUSTMENT OF BRAKES IS EXTREMELY IMPORTANT FOR STOPPING CAPABILITY If brakes are in need of adjustment we recommend that you follow the manufacturer s instructions or steps outlined in this booklet 13 EXTENDED STORAGE MAINTENANCE Over one year The following preventive maintenance is recommended for extended periods of storage 1 Check brake system for fluid level in master cylinder If fluid level is extremely low air may be trapped in brake lines Bleed all lines if necessary and fill reservoir to proper level 2 Lubricate all links and pivots to prevent rusting If equipped with drum brakes and storage is in a humid environment remove wheel and drum assemblies and spray a good anti corrosion compound CRC Formula 5 56 for example under rubber boot on forward end of brake wheel cylinder Also spray springs adjuster and anchor pin CAUTION 3 Grease bearings fill hub cavities and reinstall wheel and drum assemblies Avoid spraying drum and brake lining surfaces 4 off bearing protectors if equipped with grease 5 sure
33. rebuild wheel cylinder and replace brake shoes if contaminated with brake fluid Clean drums and other hardware readjust brakes and bleed brake system 18 PROBLEM oNE BRAKE OVERHEATING POSSIBLE CAUSE REMEDY Drum brake adjusted too tightly Readjust check all brakes Disc brake caliper does not permit brake Check Caliper Sections must be free to pads to release move apart If frozen remove and free up Caliper piston may freeze up and prevent pads from retracting Clean contaminants out of piston cavity Replace piston seal and protective dust cover boot Bleed system Leaky or seized brake wheel cylinder Replace rebuild wheel cylinder and replace brake shoes if contaminated with brake fluid Clean drums and other hardware readjust brakes and bleed brake system Damaged or frozen brake mechanism Rebuild or replace brake unit PROBLEM BRAKES OVERHEATING Isolate the problem to actuator or the brakes as follows 1 Fully extend actuator 2 Remove master cylinder reservoir plug 3 Check that reservoir is properly filled 4 Manually push the actuator inner member in or use a screwdriver to stroke pushrod Be sure to depress the pushrod release button after stroking pushrod 5 In the first 1 8 of stroke the reservoir fluid will either remain dead calm or swirl around If the fluid swirls Fluid is allowed to return to reservoir when actuator is extended Actuator is functioning properly
34. roke pushrod and check to be sure brake system is pressurized by attempting to rotate a tire 9 Push up on the safety release bracket to ensure that pushrod is in released position 10 After bleeding has been completed re check fluid level in master cylinder Fill the master cylinder reservoir to indicator on reservoir plug Do not overfill 24 IMPORTANT DO NOT USE BRAKE FLUID DRAINED A CAUTI ON FROM BRAKE SYSTEM TO REFILL MASTER CYLINDER RESERVOIR AS SUCH FLUIDS CONTAIN CONTAMINANTS FROM SYSTEM WHICH MAY RESULT IN BRAKE FAILURE OR COSTLY REPAIRS PUSHROD RELEASE BRACKET PUSH UP AND HOLD PUSHROD FIGURE 16 STROKING PUSHROD TO BLEED BRAKES 25 HOW TO INSTALL THE BREAKAWAY CABLE CLIP The breakaway cable clip is installed on the breakaway cable to prevent inadvertent pressurization of trailer breaks if cable is lightly pulled accidentally Should the breakaway cable be pulled during emergency situations the clip will be destroyed The breakaway system must be reset by pushing up on the tab located under coupler and the clip must be replaced A 60 To install clip open latch handle and pull enough cable out of coupler body to make installation of clip easier Clip must be installed on cable in front of indicator bead as shown below A 75 Install clip from bottom side of coupler by locating cable and installing clip in front of indicator bead A 84 No clip required INDICATOR BEAD C
35. s on Correct as necessary tow vehicle too soft Air in the brake lines Bleed the brake system Brakes out of adjustment Adjust the brakes properly Contaminated brake linings Fix cause of contamination leaky wheel cylinder or hub grease seal Replace linings and clean braking surface on drum or rotor Rusted master cylinder bore Replace actuator master cylinder Breakaway cable has been pulled Reset push rod release bracket 17 PROBLEM BRAKES DO NOT OPERATE POOR BRAKE PERFORMANCE POSSIBLE CAUSE REMEDY Worn out brake shoes or disc brake pads Replace brake shoes pads on both sides of axles and check drums rotors for wear or damage Foreign material in the brake unit Clean thoroughly Replace shoes and assembly linings if contaminated Insufficient amount of hydraulic fluid Fill reservoir and bleed brakes Check for leaks Broken lines or pinched line Replace faulty lines and bleed brakes Seized actuator master cylinder Replace actuator master cylinder Prevents piston from stroking Corrosion rust keeps brake from Replace damaged components or entire operating brake assembly as required Inadequate brakes for load or driving If you have a tandem axle trailer add a conditions second set of brakes DRUM BRAKES ONLY Incorrect adjustment of drum brake Adjust all brakes Broken components in brake assembly Replace faulty parts and re adjust brakes Leaky or seized brake wheel cylinder Replace
36. ster cylinder and brake line will damage paint Care should be taken to protect painted surfaces 3 Remove one retaining ring and washer from each of the two roller pins located on side of actuator main body and slide pins out 4 Pull on brakeaway cable to remove inner member This ensures that all components will come out attached together Internal components can now be removed and dismantled for inspection maintenance or repair Entire inner member can be replaced ROLLER PIN CAP WASHER BRAKE LINE O FITTING J RETAINING RING BREAKAWAY CABLE PULL TO REMOVE INNER MEMBER FIGURE 14 A 60 ACTUATOR SIDE VIEW A 75 amp A 84 similar 21 ACTUATOR ASSEMBLY Before the inner member can be inserted into the main body all internal components must be assembled and places in their proper position 1 For ease of assembly assemble inner member upside down 2 Check that shock absorber reservoir cover plate diaphragm and plug are assembled to the master cylinder 3 Insert end of breakaway cable through hole in front of inner member thread through latch assembly and around out site of cable guide rod located on the side of master cylinder Ball end of cable can now be inserted into hole on cable attachment plate and slid over into slot Note orientation of cable attachment plate 4 Insert square end of push rod assembly into hole in cable attachment plate Insert round end of push rod assembly throu
37. the trailer brakes won t be a problem when backing up Below are options that help you back up with the trailer brakes Some trailers with disc brakes need an electrical solenoid control to allow the trailer to back up This control is wired th the back up lights on the tow vehicle and when the tow vehicle is put into reverse this control dose not allow the trailer brakes to apply BRAKE LOCKOUT BRACKET A simple lockout is included on some models to stop the coupler from moving back when you back the trailer The brake lockout bracket is used when you need to back over soft ground or up a hill Use it as follows 1 Put or place the brake lockout into slot behind roller pin on the side of the actuator 2 Slide the brake lockout completely forward in slot Washer will keep brake lockout from falling out while backing up When you pull the trailer forward and the actuator extends the brake lockout should fall out of the slot This makes sure the actuator will function when stopping THE BRAKE LOCKOUT BRACKET MUST A WARNING REMOVED BEFORE TOWING OR THE TRAILER BRAKES WILL NOT WORK FIGURE 8 BRAKE LOCKOUT CAP This type of lockout is an available option It allows trailers to be backed up over soft ground or up inclines without fully engaging the brakes This lockout is designed to disengage when the trailer is pulled forward after backing up Therefore it must be manually reset prior to each back up Operating
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