National Mower Triplex-CE DL 68" User's Manual
Contents
1. iieii en 215cc Maximum Horsepower 7 5 hp 5 6 kW 3600 rpm Corrected per SAE J1349 Maximum 12 5 16 5 N m at 2500 rpm Direction Of Counterclockwise Facing The PTO Shaft Bast Idle Speed tre IBI A 4000 rpm Slow ldle Speed TEE 1750 rpm ME Unleaded Gasoline Petrol Fuel Tank Capacity Ee eate er idt ns 4 80 US qt 4 54 Minimum Specific Fuel Consumption Ratio 240 gr hp hr 322 gr KW hr QI iiit Ste Een toa eet Engine Oil SAE 10W 30 Capacity 1 90 US pt 90 Garbutetor x oe eR paie ut Float Type with Fixed Main Jet ee eee t det tette ete Reciprocating Balancer ORO MEET Flywheel Magneto Transistor Type Spark Plug ae kr ana Pg dun e Ru Resistor Type le ET Recoil Starter with Automatic Compression Release ee Mechanical Lubrication Splash with Low Oil Shut off System eee P E Eb ME Dual Element Eege ne ue B EE Low Tone Type Lighting RR RIRs 12 V 25 W Charging o e OR dee e ERE 10A Net Weight eth eoe rei 59 1 Ibs 26 8 kg Dimensions L x W xX 13 52. v ec br e ebe CN e e ek CN se e CN H3A318314IHS 790002 Bulysng 19497 1eylus ONIHSN 5 9008 JOWIUS ONIHdS 20970 L AIO uonduoseg ON ed 3 23 D D LL 68 10 01 350 NATIONAL 68 SR amp DL TRIPLEX SLYOddNS 4015 9 NSINVHOAW 38913 yayn 9 WHY 6 1002 vc As nd peeds uBiH eg 029002 8v 2 80920 39 89 LIS H3JSNVH L 16070 27 Je p yeus1ejuno 20920 yeusiejuno dals 881008 9r LIWHSYALNNOO 861002 LZ yeusJejuno UIE ONISNOH 751000 St 62v 1138 0680 yeyssajunod 90090 vt 19407 20920 2 LL jnJpooM 61090 Er 3aino 1738 961002 81 9 998 eA 1139 20660 Zr yeusJejuno ONINVAE 40190 11 L4AVHSYALNNOO 181008 L c yeusJejuno 19407 81960 9 yeusJejuno ure 90960 Or yeusjejunoo 821002 GL 20060 6 2 Ind Jemoyy ONINdS 90970 v 19497 72020 9 yry pue samon IINd 96810
3. peg 60120 L eeu 12190 02 90 02 epelg 9 A18I N3SS 133 72002 6l 1994 81160 EI X 91 9 19005 Nid 80070 LL yeusjejunoo 14MOONdS 91160 QL Jamo 2 192002 GL 094 26710 vL pueH 1 A18IN3SSV Hali vo 133 GELLOZ EL yeusJejunoo ONIHSNG 90090 ZL ISVHSYSLINNOOD 692004 LL Jeey FANL 188002 OL INN 8 MIYOS 992002 6 Alanassv 1338 9EZ00Z 8 Jamo 1294 340A 11Nd 601002 2 H3T10H 872602 9 L HY Peg 908206 HT 278206 6 4371104 ELLEOZ v peius 6 002 pieius 614102 dn pue 96 asivno 02160 NO uondusseq ON Hed 27 FIGURE 5 NATIONAL 68 SR amp DL TRIPLEX FIGURE 5 WING MOWERS Item Part No Description Qty 1 201513 BRACKET Shield 4 2 200235 UPRIGHT Shield 4 3 203250 ROLLER 2 4 203248 ROLLER BRACKET L H 2 5 302847 ADJUSTER Roller L H 2 302846 ADJUSTER Roller R H 2 6 201775 FRAME Bed Knife Bolt on 2 7 201460 SCREW Flat Head 14 201802 NUT Bed Knif
4. NATIONAL 68 SR TRIPLEX OWNER S MANUAL Includes Operation Maintenance and Parts Lists for SR 68 and DL 68 NATIONAL MOWER 700 Raymond Ave Box 14299 St Paul Minnesota 55114 0299 U S A Phone 651 646 4079 Fax 651 646 2887 www nationalmower com OCTOBER 2001 LIMITED WARRANTY For the period of one year from the date of purchase 45 days if the product is used for rental purposes National Mower Company will repair or replace free of charge for the original purchaser any part or parts found by inspection to be defective by our Factory Authorized Service Station or by the Factory at St Paul Minnesota to be defective in material or workmanship or both All transportation charges on parts submitted for repair or replacement under this warranty shall be paid for by the purchaser This warranty does not include engines engine parts or tires which are covered under separate warranties furnished by their manufacture or supplier All service underthis warranty will be furnished and performed by our Factory Authorized Service Stations THERE IS NO OTHER EXPRESS WARRANTY IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO ONE YEAR FROM PURCHASE OR 45 DAYS IF THE PRODUCT IS RENTED AND TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED WARRANTIES ARE EXCLUDED THE ABOVE REMEDY OF REPAIR AND REPLACEMENT OF DEFECTIVE PARTS IS THE PUR
5. The engine clutch lever has an electrical interlock and engine will not start if clutch is engaged For added safety the interlock system should be checked periodically to ensure that it is adjusted to function properly 2 Wing Mower Clutch Engages drive to wing mowers Pull lever back and down to engage Never engage drive unless wing mowers have been loweredto cutting position 3 Ignition Key Switch Provides a means to secure the mower when unattended Turn the key clockwise to unlock the ignition 4 Throttle Control Regulates mowing and travel speeds Moving the control handle back or lowering it will reduce engine speed for starting and idling engine Push forward to increase engine speed Never operate mower at speeds faster than necessary to do a good safe job 5 Brake Is designed to slow the mower and lock the rear wheels in the full stop position Depress the foot pedal to engage Note It is bestto slow the mower with the throttle and then disengage clutch lever before applying brake This prevents excessive wear and engine overload 12 FIGURE C 6 Parking Brake Lever Provides a lock for the brake Push brake lever forward over center to lock Pulling brake lever back toward the rear of the machine will disengage the brake 7 Shifter Lever Located on the mower differential this control has three positions Forward Neutral center position and Reverse The lever must be pulled toward th
6. amp DL TRIPLEX L Jamo T T3IHS 618102 25 10960 LS Je93 WHY 811002 05 7060 6v 241604 930A ONIHSNA c L00c iv yeysie unog HNIHSNE 20090 yeusiejuno ATEWASSV AITINA 792002 LOL 992002 ya n 9 5 9060 avo LSNA 20920 ev yN JOYIS 22020 Lv Jeyrus J3A31 912002 Ov LAMOVYA 612002 9 Nid 22050 16 SOT YALSIHS 886002 96 Jamoy Jeey 1198 40660 Jamo 34OA S3LJIHS 112002 ve J9MO N 1693 AGNL yeas 6 0 0 LE 43141 192202 0 pjeno 72002 62 331 48131 82 NIVHO L870 22 3I VJ 92 NO uonduoseg ON Hed w A18IN3SSV 133 VELLOZ Gz SNISIS 67570 vc OS IANYA 109102 Jomo Jeey ATGWASSV 34INM 8 102 6 MOOS peg INN 208102 6 e se pios
7. x 15 6 x 17 0 344 5 x 395 5 x 432 5 mm DISPOSAL NUMBERS Gasoline Petrol Lead Free 2 trente nete nene 54104 Engine Oll dee EE E Eed tdt een stets 54112 Fiberglass Parts ec tete Lt Ld ne dete ove va oe EAR ubt 57103 Tresen tu cula fe 57502 Gear ej EUH IT 54112 Cc 54202 Plastic Tanks tM t E EE 57127 NOISE EMISSION AND VIBRATION Soundt Operator POSION ceret merken 86 dBA Sound Power Level LWA u en 99 dBA Vibration Maximum Vibration 16 1 m s RMS LOCATON UU Left Hand Operating Condition Engine rpm 3400 Unit Stationary IMPORTANT National Mower Safe Operation Practices For Riding Mowers Know control functions and how to stop quickly READ THE OWNER S MANUAL Wear approved safety glasses or goggles when operating the mower Do not allow children to operate mower Do not allow adults to operate mower without proper instruction Do not carry passengers Keep children and pets at a safe distance from an operating mower Clear the work place of objects which might be picked up by the blades and thrown Disengage all reel clutches and shift into neutral before attempting to start the engine motor Disengage main clutch before shifting reel clutches Disengage power to the reels and stop the engine motor before leaving the operator s position Disengage power to the reels and stop the engine motor before ma
8. 350 NATIONAL 68 SR amp DL TRIPLEX 8 V YOUMS 1696 L34O vig 186v0c 96 2 jees HOLIMS 560 0 Ge 198002 ve 8 9 ees 30 40 sagjsueJ 2 jees ONINdS 21870 26 2 718002 LE L pue 9 HOLIMS v 040 0 03002 emoJu 14 62 pue sepnjoul 1OH LNOO 22020 82 yeys Buueeijs 66 002 12 92020 92 SNIH33IS 002002 Gz pesn vc 91060 HOLIMS 886702 22 pueH 146 1934 1004 661002 LZ L HOLIMS 92020 02 701002 SL pepeeJu SIA319 9800c 8 2 41 8 2 2 LSNA 60920 2 LSNA 20920 v qnH J99uM 21190 QL 30014 0002 GL pueH 46 Nid 961002 E00r0 CL dow 6802 ZL 30014 ATGWASSV 31XV 981002 LL LJvVHS 760002 OL 9 82020 6 Nid 661002 8 71060 1 9 1sog Buueejs 0090 9 eixv L96L0c pueH 1S3H 1004 480002 133HM 9
9. is not critical providing that there is sufficient grease to coat the gears Unless leakage is evident it is recommended that the GREASE FEQUENCY 8 Hours 8 Hours 30 Hours Gear Grease Yearly IMPORTANT Figure E shows the top view ofthe left wing mower with guards removed and shows the proper lubrication locations These areas on both wing mowers must 1 68 SR amp DL TRIPLEX grease be checked once each year Check grease level by loosening the bolts in the differential case flanges and spreading case halves It is not necessary to totally disassemble the case or remove the wheels for this inspection Add Multi purpose Gear Grease such as Pennzoil No 303 or equivalent if necessary Total grease capacity is 1 1 2 pounds Do not use oil in the differential case in place of grease it will leak through the seals be free of dirt and grass clippings and be EL well lubricated for proper drive belt ten SCREW sion and operation Support collars for the wing mower pull rods must be kept in alignment to maintain belt tension FIGURE E 13 BED KNIFE REPLACEMENT When the bed knife becomes damaged or too worn to keep sharp it must be replaced Design improvements have made bed knife replacement easier with bolt on construction Follow the procedure below 1 The backbar 1 Fig F bed knife 2 Fig F and fasteners have been assembl
10. with pivot facing rearward over the seat mount of the mower frame and fasten with Bolts 1 Fig B and lock nuts Pivot Seat Brace 3 Fig B from the axle so that the top end aligns with the tab at the back of the seat hinge assembly Fasten with a 5 16 x 1 Hex Head Bolt Lock Washer and Hex Nut Remove the Lifter Tee 4 Fig B from the shipping position in the Pivot Tube 5 Fig B and set aside cotter pin and washer for later use Insert the rod end of lifter tee through the slotted hole in the pad on the rear mower frame and secure with the cotter pin and washer as shown Fasten Rear Mower Pull Rod 6 Fig B inner leg by removing Bolts 7 Fig B and reinserting it through pull rod and attaching flanges on tractor axle Note that Spacers 8 Fig B must be in each pivot point to allow free movement of the pull rod Attach Pull Rod 6 Fig B to Pivot Tube 9 Fig B with Pin 3 Fig K on page 17 and Spacers 1 Fig K NOTE Before completing assembly it will be neces sary to refer to the rear Mower Drive Belt Tension section and Figure K page 17 for adjusting belt tension Install Rear Mower Belt 10 Fig B from Countershaft Pulley 11 Fig B to outer Drive Pulley 12 Fig B Idler Pulley 13 Fig B must ride on top of lower belt to provide proper tension NOTE It will be necessary to raise rear mower to allow enough slack to get belt over pulleys SEAT 1 Fasten Seat 15 Fig B to seat mounts
11. 2 el 691002 4 v 1500 20920 1 38g ONIHdS 96 Jemoy LSLOOZ LL UEN WHY 78002 SE 2 088102 ol AJA 802002 92210 6 L sejeo Nesemey 1 13g lt lt L Jeay 319NV TINd 161002 8 JOJON 60960 pueH yry samon 999002 uoinj 2080 L L pueH 497 449002 1 Jaddn urew OO 591008 05 yeysis unog QOY 221002 9 Jeddn 1138 gesloz 62 c 05 0 G 17139 79108 82 2 4907 281002 anis 72 dou 0 1002 811002 92 JoyyuoD H3A31 191002 2 WHY 91 002 52 dn pue 96 22020 AIO ON Med AIO uonduoseg ON Med wa 25 14 lt o z F o ka 2 z zi 4 o a z a o z I lt o o z D a a FIGURE 4 NOTE Skids and Reel End Shields are not shown See Figure 6 NATIONAL 68 SR
12. 290 kg Do not exceed 25 slope Located on main belt shield Manufacturer s identification and specifications Located on the main belt shield Read Operator s Manual Referto manual for adjustments Caution Machine is used only as a lawn mower Keep bystanders Located on main belt shield Sound power level Located on main belt shield Sound Level operator s position Located on main belt shield Forward Neutral and Reverse positions Located on main belt shield Rear mower clutch engagement Located on the rear mower shield Wing mower clutch engagement Located on main belt shield Engine clutch lever Back Neutral amp Forward Located on main belt shield 68 10 01 350 INTRODUCTION This machine has been designed to meet European CE Safety Standards Metric eqivalents are provided wherever possible for users outside the United States This manual has been prepared by National Mower Company as an aid to users for assembly maintenance adjustment and ordering replacement parts Additional RECEIPT OF SHIPMENT Carefully inspect your machine and crate for dam age that could have occured during shipment If damages orshortages are noted have the transportation company s representative note this on the bill of lading UNCRATING INSTRUCTIONS In order to prevent possible damage to the machine or personal injury the following uncrating procedure must be followed 1 Position Crate 1 as sh
13. CHASER S EXCLUSIVE REMEDY FOR ANY DEFECT MALFUNCTION OR BREACH OF WARRANTY LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES UNDER ANY AND ALL WARRANTIES IS EXCLUDED TO THE EXTENT PERMITTED BY LAW NATIONAL MOWER COMPANY 700 Raymond Avenue St Paul Minnesota 55414 U S A 68 10 01 350 1 68 SR amp DL TRIPLEX TABLE OF CONTENTS Declaration Of Conformity sss eem 4 Specifications Dimensions 5 Engine Briggs amp Straton nenn 5 Disposal NUrmJbers ea 5 Noise Emission and Vibration 5 Safe Operating Practices tede teure 6 Decal Transfer Identification sn 7 amp 8 C 9 Of Shipment ai ersada anea a alaa eaaa aalas aaaea 9 EE 9 Assembly Instructions Rear MOWOE iter E RET geen 10 amp 11 NIC E 10 amp 11 Wing MOWE needs 10 amp 11 ENGINE Riesen 10 amp 11 Differential a 10 amp 11 Maintenance 32 2 mei 13 Bed Knife Replacement 14 Lapping and Grinding Procedures nenn 15 Adjustments Height Of Cute ERAI HW eR te 16 Reel To Bed Knife 16 Reel End Pla
14. IXIL HV3H 810 0 200002 2 INNON LV3S 818002 Am uondioseg ON Hed 21 FIGURE 2 14 o z o D 2 z a D a z a o z F F lt F 5 D a a I NATIONAL 68 SR amp DL TRIPLEX L J9 9 Jeyius SNIHSS 9 9002 19 L Jeyius YSINYVO 9000 99 L LINN LIVHSYALNNOD 980002 59 L ONIM O LLGEO v9 L dvo LSNA 20920 9 L pueg H3A31 201002 9 ONIN 43201 LLOvO 9 L yeusjejuno LJvHS 440002 09 L 6 HNIPOOM 69 L 160002 99 L deis 81920 ZS L 8 2 dvO LSNA 20920 99 8 2 SNIM O 20920 SG L 56 660002 79 L 8 2 4201 LL jJpooM A3M L070 25 wW E L X IL OXY 1699 JOOD Nid 91070 LS L 133HM 060002 09 L dv 960002 L HV TIOO 460002 9r uv 22 Jeoeds WIHS 889002 ZEIL H3Ovds 489002 vL 128002 OL 189002 9r ONIHV3gS 70190 L 8 1 1 eixy Buueeg 01820 L VIS 01860 L 1uBr4 01920 L 1uBr4 0190 Lv L Buuee
15. ON OF REEL TO THE BLADE FIGURE G GRINDING Reels must be ground at 25 in the direction shown below by the arrow in Figure G Back grind until reel blades are free from roundness dents and nicks Spin grind to remove all burrs All blades must be on the same diam FiS maximum cutting efficiency grind bed knife top and front edges at 5 as shown in Figure H GRIND BED KNIFE AT ANGLES SHOWN II ZA 7772 N ENDEL SVEN 50 FIGURE H 15 ADJUSTMENTS DANGER To ensure safety all of the following adjust ments must be made only after the engine clutch lever has been disengaged and the ignition key and spark plug wire have been removed HEIGHT OF CUT The height of cut is variable and may be adjusted on both wing mowers and the rear mower by loosening the top and bottom Adjusting Nuts 1 Fig 1 which hold Roller Adjusters 2 Fig I in Roller Brackets 3 Fig 1 Roller 4 Fig 1 may then be moved up and down It is important to get all rollers adjusted to the same height so that there will be uniform cutting across the NOTE Guards removed or cut away to show detail 477 E lt gt es am SS 3 t3 EINS espa a 0 c 2 m 16 entire width ofthe mower Do not adjust by sight Place the mower on a hard level surface Loosen the Adjusting Nuts 1 Fig 1 on each side of reel assemblies and place a board or gauge pla
16. PLEX MOWER Make and model to which this declaration relates corresponds to the relevant basic safety and health requirements of the Directive 89 392 EEC if applicable and to the requirements of other relevant Directives EN292 1 amp 2 EN294 EN349 Title and or number and date of issue of the other Directives If applicable For the relevant implementation of the safety and health requirements mentioned in the directives the following standard s and or technical specification s has have been respected ANSI B71 4 Title and or number and date of issue of standard s and or technical specification s St Paul MN USA MN 22 22 10 15 2001 pus Ww 2 Place and date of issue Name function and signature of the authorized person 4 68 10 01 350 NATIONAL 68 SR amp DL TRIPLEX SPECIFICATIONS DIMENSIONS amp WEIGHT MOWER HN 79 13 201 Width Wing Mowers Folded 61 8 157 Width Wing Mowers Down 76 193 gend 39 37 100 Weight empty eet T E 639 5 Ibs 290 kg ENGINE BRIGGS amp STRATTON Engine Type Forced Air Cooled 4 cycle Horizontal Shaft OHV Engine Number Of Cylinders 2222 DER lagen One Stroke aiiis oerte ee elite an 2 99 x 2 17 76 x 55 mm Piston
17. REST Left 1 15 07237 TIRE Deluxe Wide 2 16 07572 INTERLOCK 1 31 FIGURE 8 DL 68 DRIVE PARTS FIGURE 8 Item Part No Description Qty 1 09100 GUARD Engine Clutch 1 2 201881 RETAINER Mowing Belt 1 3 201884 RETAINER Transport Belt 1 4 201890 MOUNT Belt Guides 1 5 201872 STEP PULLEY Main Countershaft 1 6 03603 PULLEY Transport Main Countershaft 1 7 02507 Washer 10 GA 2 8 03502 O RING 7 8 Dia 2 9 06101 NEEDLE BEARING 2 10 03902 BELT Drive B66 1 11 03655 PULLEY Main Countershaft 1 12 04013 KEY Woodruff 11 3 13 201871 COUNTERSHAFT Main 1 68 10 01 350 1 768 SR amp DL TRIPLEX Item Part No Description Qty 14 201740 HOUSING Main Countershaft 1 15 200208 KEY Square Engine 2 16 03926 BELT Engine Transport 6841 Gates Power Rated 1 17 202071 PULLEY Engine Transport Belt 1 18 03903 BELT Engine Mowing 6844 Gates Power Rated 1 19 03609 PULLEY Engine Mower Belt 1 20 202780 BELT GUIDE WELDMENT Engine 1 21 202446 STUD Belt Guide 1 22 201946 BRACKET Idler Pivot with Bushings 1 23 200530 GUIDE Belt 1 24 202441 SPRING Transport Pedal Return 1 25 03608 PULLEY Idler 1 26 201721 FOOT LEVER 1 27 201728 ARM Idler Lower Countershaft 1 28 201730 ARM Idler Mowing Belt 1 29 03607 PULLEY Clutch Lever 1 30 201718 PULLEY LEVER Transport 1 31 201889 GUIDE Belt 1 32 201919 ROD Transport Clutch 1 33 202440 SPRING Transpor
18. be sure that the mower is in a safe working condition Never store the mower with gasoline petrol in the tank inside a building where fumes could reach an open flame or spark Allow the engine to cool before storing in any enclosure Keep the engine free of grass leaves or excessive grease to reduce a fire hazard The mower and reels should be stopped and inspected for damage after striking a foreign object The damage should be repaired before restarting and operating the mower Do not change the engine governor settings or overspeed the engine Proceed as follows when mowing a Mow only in the daylight or in good artificial light b Never make a cutting height adjustment while the engine motor is running c Shutthe engine motor off when removing grass or unclogging reels 24 This machine is to be used only as a grass cutter or lawn mower WARNING California USA residents are required by law CA PRC 4442 8 CAH amp SC 13005 to equip their engines with spark arresters when operating in flammable vegitation Arresters must be obtained from your engine dealer and are not available from National Mower Company 6 68 10 01 350 NATIONAL 68 SR amp DL TRIPLEX TRANSFER IDENTIFICATION NATIONAL MOWER CO 700 RAYMOND AVE ST PAUL MINNESOTA 55114 USA 651 646 4079 FAX 651 646 2887 YEAR OF MANUFACTURE 2000 POWER RATING 7 5 5 6 kW at 3600 RPM WEIGHT 639 5 Ibs
19. by threading four 5 16 x 1 Hex Bolts 16 Fig B through 5 16 lockwashers through holes in seat mounts and into the threaded holes in the bottom of the seat NATIONAL 68 SR amp DL TRIPLEX CE WING MOWERS 1 Remove Wing Mower Belts 17 Fig B from the steer ing column Unlock Hooks 18 Fig B from Wing Mower Assem blies 19 Fig B lower them carefully to the ground Slip wing mower belts over Countershaft Pulleys 20 Fig B Block mower wheels to prevent mower from moving forward Pull Wing Mower Assemblies 19 Fig B forward so that they slide on Pull Rods 21 Fig B and compress springs This will allow enough slack to enable belts to be installed over Reel Pulleys 22 Fig B ENGINE caution MOWER IS SHIPPED WITH DRY ENGINE DO NOT START ENGINE UNTIL OIL IS ADDED TO CRANKCASE See Engine Manual for additional information DIFFERENTIAL Grease has been installed in the differential at the factory Refer to the Maintenance Section page 7 for additional information 11 OPERATION EN E The following is a description of the machine controls and their function Refer to Figure C 1 Engine Clutch Lever labeled Mowing Clutch Engages power for travel and mowing Down position is disengaged and up position is engaged IMPORTANT Engage slowly before full engagement Always disengage the drive when stopping or leaving the machine See Caution Decal
20. e Screw 14 8 201504 BED KNIFE 21 2 9 04549 SPRING Reel Adjusting 2 10 200236 REEL TAKE UP ASSEMBLY 4 11 201734 REEL CARRIER ASSEMBLY Left Hand 2 12 06120 BEARING Reel Includes Race 4 13 200296 REEL ASSEMBLY 6 Blade 2 14 201781 FRAME Wing Mower 2 15 200256 ADJUSTING SCREW amp NUT Bearing 2 16 201437 TAKE UP WASHER Reel Bearing 2 17 201383 CAP SCREW Special Pulley Scraper 2 18 200287 PULLEY SCRAPER 2 19 201735 REEL CARRIER ASSEMBLY Right Hand 2 20 03932 BELT A35 Wing Mower 2 21 03601 PULLEY 2 22 201520 SHIELD Right Hand 1 201521 SHIELD Left Hand 1 23 203172 ROLLER BRACKET R H 2 29 FIGURE 6 FIGURE 6 SKIDS REEL END SHIELDS amp GUARDS Item Part No Description Qty 1 203728 SKID BAR L H 1 2 202959 SHIELD Wing Mower 3 3 201585 SKID Mower 2 4 203727 SKID BAR R H 2 5 202410 GUARD Inside Rear Mower 1 6 202281 CHAIN GUARD Rear Mower 1 30 68 10 01 350 NATIONAL 68 SR amp DL TRIPLEX FIGURE 7 FIGURE 7 DL 68 RUNNING GEAR amp MISC PARTS Item Part No Description Qty 1 07065 KEY SWITCH 1 2 07064 AMPMETER 1 3 07063 HOURMETER 1 4 09098 DASHBOARD 1 5 09099 GUARD Main Belt 1 6 201994 EXTENSION Main Belt Shield 1 7 201996 STEERING WHEEL DL68 1 8 204987 BRACKET Seat Switch 1 9 07035 SAFETY SWITCH Seat 2 10 09101 COVER Battery 1 11 201754 HOLDOWN Battery 1 12 201582 BATTERY BOX 1 13 08057 ROD Side Post Battery 2 14 201925 FOOT
21. e center of the machine to clear the notch in the stop disc and positioned securely in the new notch IMPORTANT Never shift while machine is in motion because it could cause damage to the gears Always disengage engine clutch before attempting to shift 8 Rear Mower Clutch Shifter Lever Engages drive to the rear mower Pull lever forward and toward the center of the machine to engage sliding jaw clutch To disengage pull lever forward and out to engage locking pin Never engage the drive unless the rear mower has been lowered to the cutting position 9 Rear Mower Lifter Handle Raises rear mower to the transport position Pull handle up forward and over center to lock it in an up position 10 Wing Mower Lifter Handles Raises wing mower to the transport position Lift wing mowers until they can be secured with hooks on frame Moving machinery can be dangerous if not operated properly Follow all safe operating suggestions listed on Safe Operation Practices Page 6 6 10 01 350 MAINTENANCE LUBRICATION Figure D shows the top view of the 68 Triplex Mower with guards removed Lubricate the machine at the recommended locations and intervals using the proper lubicants to ensure maximum service and long life of your machine Refer to the engine manual separately furnished for proper lubrication and maintenance instructions Since the mower does not operate at high speeds the grease level in the differential
22. ecommendations above for determining proper tension and refer to Figure J Spacers 1 Fig J are provided on the rear mower Pull Rod 2 Fig J to adjust the belt tension Remove Pin 3 Fig J from the end ofthe pull rod and slip out the pull rod from the Pivot Tube 4 Fig J Move as many spacers as necessary to the location indicated and reassemble ENGINE DRIVE BELT Engine to Main Countershaft Belt tension is increased by loosening the four engine mounting bolts and sliding the engine forward in the slotted frame holes Testforthe propertension as detailed NATIONAL 68 SR amp DL TRIPLEX CE NOTE Guards removed to show detail FIGURE J for the wing mower adjustment When tension is correct tighten all the bolts securely MAIN DRIVE BELT Main Countershaft to Rear Drive Belt tension is increased by loosening the four bolts holding the Main Countershaft Housing 45 Fig 3 and sliding the housing forward in the slotted frame holes NOTE It will probably be necessary to loosen or remove belt guards to reach the adjustment bolts Also if this belt is adjusted it will probably be necessary to readjust the engine belt 17 TROUBLE SHOOTING Tractor Unit Engine will not start Turn ignition switch to on Ensure that there is sufficient gasoline petrol in the tank Make sure safety switch is making contact and mowing clutch is down Look for a loose wire on Ignition or spark plug wire not connected Opera
23. ed at the factory under tension To ease replacement and prevent misalign ment of components the leading edge of the backbar must be tack welded two or three places before the old fasteners are removed 2 Remove shoulder nuts 3 Fig F and flat head screws 4 Fig F If shoulder nuts are badly rusted or Tack weld this edge corroded they may have to be cut off and screws driven out to be removed 3 Clean the bottom surface of the backbar for maximum metal contact with the new bed bar 4 Fasten the new bed knife to the bottom of the backbar in the position shown bent edge up Shoul der of shoulder nuts must be seated firmly in the backbar and screws must be flush with the bottom of the bed knife 5 Torque shoulder nuts 35 to 40 ft Ibs FIGURE F 14 68 10 01 350 1 68 SR amp DL TRIPLEX LAPPING PROCEDURE INTRODUCTION Back lapping is a very important step in maintaining sharp reel blades on the rear and wing mowers This procedure should be performed when the reel blades and the bed knife become slightly rounded and the grass is not cut cleanly with only a slight bed knife adjustment Also after grinding the bed knife and reels you should back lap to establish a perfect match between the bed knife and reel blades RECOMMENDED STEPS 1 Adjust the bed knife to the reel so that the bed knife is level with the reel and light contact is maintained 2 Reels must be r
24. g 2221 880002 Or 411 8 1 1 H3HSVM 10920 6 L ejeipeuueju LINN LIVHS 020002 9 L dwo9 ATEWASSV 1119 990002 15 SNINIV L3H 21060 96 uonduo seg ON Hed Je89 5NIHShS 70090 Je9H ATHIN3SSV 92000 IIO Iwas 20920 26 Jeay 1894M TWAS 2610 11146 780002 BILL ONIH O 70560 0 BILL H3HSVM LSNA 089002 62 50090 bly ANH 620002 22 episjno H3AOO 690002 92 LAS 133Sv9 600 0 NOINId HVHS ONIHSng 690002 670002 ez 20090 9SJ9 9M 4739 090002 LZ LL 5 739 750002 02 8 1 X 9L G 80070 ased JenueJeyld J3HSVM SNIGITS 190002 91 episu 43AOO A J9 02 MOES L34SV9 20020 yeus ejeipeuueju ONIHV3SS 3 1033N LOL90 SL SNIHSNE 919002 vl exeug ayeig powod Ind exeig 1340 vg 16080 21 269102 LL Jeyius 1108 01080 yeusJejuno 4894 ONIHV3S 20190 6 LINN 801002 8 Jeylus OSIA 4016 19000 X 8 2 9xeJg ccOvO 9 SIA319 LcOvO Jeylus 20020
25. itch operation see Figure 9 page 34 adjusting must be made with the engine off DANGER Do not do any investigation of the working parts of the machine with the motor running Always turn the engine off 18 68 10 01 350 NATIONAL 68 SR amp DL TRIPLEX INTERLOCK OPERATOR PRESENCE SWITCH N O 07035 CONNECTOR INTERLOCK MODULE ASSY 204988 E OPERATOR PRESENCE NEUTRAL START 4 SWITCH N O SWITCH N O 07035 07035 Yellow FIGURE K PARTS LIST Note For your records and future ordering fill in the following information DATE PURCHASED MODEL NO SERIAL NO ORDERING INFORMATION When ordering replacement parts always furnish 1 Your complete name address and phone number 2 Model Number and Serial Number stamped on the main frame rear axle gusset below seat 3 Part Number it is recommended that the correct number be verified with a current Master Price List 4 The full Description of the part 5 Quantity desired quantity shown is the total number of parts con tained in the particular view shown If the Part Number and the Description of your order do not agree the Part Number will be used to fill your order 19 FIGURE 1 D o z LL o a 2 z D o a l W Q z I F F 5 D a D 2 20 68 10 01
26. king any repairs or adjustments Disengage power to the reels when transporting or not in use Take all possible precautions when leaving the mower unattended such as shifting into neutral setting the parking brake stopping the engine and removing the ignition key Do not stop or start suddenly when going uphill or downhill Mow up and down the face of steep slopes never across steep slopes Do not exceed a slope of 25 in any direction Reduce travel speed on slopes and in sharp turns to prevent tipping or loss of control Use extreme caution when changing direction on slopes Watch for holes in the terrain and other hidden hazards Watch for dangerous traffic when crossing or near roadways Never direct the discharge of material from operating reels toward bystanders nor allow anyone near the mower Handle gasoline petro with CAUTION it is highly flammable Use an approved gasoline petrol container Never remove the fuel tank cap or add gasoline petrol to a running or hot engine Never fill the fuel tank indoors Wipe spilled gasoline petrol immediately Open garage doors to allow ventilation if engine is run inside exhaust fumes are dangerous Do not run engine in any enclosed area Keep the mower in good operating condition Make sure that all safety switches are operating properly and all safety guards are in place at all times except during servicing Keep all nuts bolts and screws tight to
27. ld cause uneven wear to mower parts and uneven cutting of turf Test for end play periodically by trying to move the reel from side to side in the frame If there is ANY movement adjust the bearings by loosening the lock nut on the adjustment bolt 6 Fig 1 which is located on the inside right end of the reels and turning the adjustment bolt IN one halfturn or less Do not overtighten An overtightened bearing will cause excessive bearing wear Test again for end play and if reel is rotating freely and end play is not noticeable tighten the lock nut 68 10 01 350 BRAKE ADJUSTMENT The foot brake is properly adjusted if it slows the machine when depressed and can be locked when the pedal is depressed fully Adjust brake tension by removing cotter pin and brake pedal pin and turning brake clevis located under pedal on brake rod When adjustment is complete attach clevis to pedal with pin and cotter pin WING MOWER DRIVE BELT TENSION Proper Belttension allows mowers to be driven without slippage but loose enough to be deflected slightly at point midway between the pulleys An overtight belt will cause excessive bearing wear and a slipping belt causes excessive belt wear IMPORTANT Never allow oil to get on the belt which could cause slipping Adjust tension by loosening set screw Fig E in the wing mower pull arm sliding the mower rearward and retightening set screw REAR MOWER DRIVE BELT TENSION Follow the r
28. own in Figure A on a hard level surface 2 Cutand remove all Steel Banding 2 Fig A 3 Remove the entire top of the crate Unbolt Seat 3 Fig A from crate bracing and lay seat aside for installation later Save the bolt and washer to use for mounting the seat mounting member FIGURE A NATIONAL 68 SR amp DL TRIPLEX CE information will gladly be furnished by calling or writing the manufacturer or his authorized agent Please furnish us with the Model Number Serial Number and Date of Purchase when contacting us about your machine Designations of right left front and rear are used as if the operator was sitting in the mower seat Claims for shipping damages must be noted by the consignee at the point of destination and filed with the transportation company that delivers the shipment 4 Lift Rear Mower 4 Fig A off the crate supporting members and set aside for later attachment Handle mowers carefully with protective gloves Reels rotate freely and are very sharp 5 Make sure Wing Mowers 5 Fig A are secure to the mower frame with Wing Mower Hooks 15 Fig B 6 Knock down all sides of crate and remove Roll mower backwards off of crate base 2 2 SP Cr d FIGURE B ASSEMBLY INSTRUCTIONS REAR MOWER 1 Remove two 1 2 x 1 1 2 Hex Head Bolts 1 Fig B and nuts from the shipping position in the Seat Hinge assembly 2 Fig B Position Seat Hinge Assembly
29. t 1 34 201966 PEDAL Transport 1 35 200135 COUNTERSHAFT Lower 1 36 201926 CARRIER Lower Countershaft 1 33 6 341 913 1 g N O N 8 MOOTNALNI 6 alila 1V3S 2 1088 1 9188 TT JT 1088 105 1089 qu NMOS LOS MOVIE 1088 MOVIE 1088 of pm OLANOVW He 90S ang 1088 YOLVINOSY MOTIAA 01988 MOTI3A OLS O N HOLIMS AL3a4vs 8 TVHLQ3N HOLTZ 1 SS3NHVH ONIMIM MOTI3A 9168 ANNOUD MOTI3A 91988 9064 119 T K 31IHM 2168 LI 3LIHM 2168 1 9 HOLMS O 8168 Ee OL M 7 2 9 YILIWYNOH et E 21 68 10 01 350 34 1 768 SR amp DL TRIPLEX 1 214 12313 89 1 6 SS3NHVH 11920 OL 989 01 MOOTYSLNI 21810 6 Ajejes HOLIMS 92020 8 5 SS3NHVH 91240 1 aval 11210 9 Aieyeg 701 0 6 AH3LIVS v 79020 L Y3LIWYNOH 29020 HOLIMS A3M 89040 NO uonduosoeg Hed 35 36 68 10 01 350
30. te of the desired height under each bed knife back bar Tighten bolts securely REEL TO BED KNIFE ADJUSTMENT The reel is adjusted to a fixed position bed knife This construction allows a more rugged and durable frame and retains the proper adjustment longer The Reel Adjuster Bolt 5 Fig 1 regulates reel distance from the bed knife To reduce the distance turn the upper hex adjuster nut on each side of the reel down Proceed slowly and do not overadjust use about 1 8 of a turn on each side at first Do not adjust one side more than the other unless the reel is obviously out of alignment Do not get the reel so tight thatitis hard to turn by hand A too tight reel will wear much faster Ideally the reel should wipe or lightly touch the bed knife It is not necessary to adjust or change the position of the lower adjustment nut Proper cutting action may be tested by holding paper strips between the reel and the bed knife Turn the reel by hand and check to see if the assembly cuts the paper all the way across the width of the bed knife Make sure that the adjusting and the locking nuts on both side are tightened securely DANGER Handle reel assemblies carefully with protective gloves Reels rotate freely and are very sharp Special care should be taken in the area where the reel contacts the bed knife REEL END PLAY ADJUSTMENT With extended use normal wear of the reel bearings will cause end play This condition cou
31. tor must be positioned on seat to depress presence switches Interlock system inoperative check wiring see Figure K Tractor will not move Gear selector must be in one of the drive positions forward Engine drive clutch must be engaged rearward and up Drive belts too loose see page 17 Visually check to see that pulleys are not slipping on shafts If everything above is OK check for a damaged gear in the gear box Tractor will not move Same as above If all of the above check OK check the reverse gear in the rearward gear box Tractor will not stop Ensure that the main clutch is disengaged brake will not stop engine Brake adjustment or service may be needed see page 17 Cutting Units Wing and or rear mow Bed knife to reel position may be out of adjustment see page 16 er will not cut Drive belts or drive chains may need tightening Visually check that both the drive pulleys and the shafts are rotating Cutting units will not turn Clutches may not be engaged Look for anything that could be jammed between the reel and the bed knife Drive belts or drive chains may need tightening Visually check that both the drive pulleys and the shafts are rotating Units will not stop turning Disengage all clutches Uneven cut Height of cut not the same on each cutting unit see page 16 Check to see if any part is bent Something jammed in cutting unit pivots not allowing them to float Electrical System DL 68 only Check wiring connections and sw
32. un in a reverse direction to be lapped Remove the lower drive belts and attach a back lapping machine not supplied by National Mower to the reels Follow the instructions furnished by the machine manu facture 3 Apply the lapping compound with the reels running using a 2 brush Apply the compound evenly to the moving blades Many types of compounds are available for lapping However we recommend a good pre mixed water soluble compound Many different grit ranges are available Pre mixed compound saves thetime required to mix eliminates the waste of abrasive rinses off easily with water and is available in all grit ranges from course to extra fine 4 Stop the reel and examine both bed knife and reel blades to see that the cutting edges are uniformly sharp If not gradually tighten the reel adjuster bolts see Figure Page 16 and repeat Step 3 untill the proper sharpness results 5 Rinse off the compound thoroughly with water to remove all abrasive Check for sharpness and readjust the bed knife if necessary Reel to bed knife contact should be adjusted to easily cut a sheet of paper see Adjustments Page 16 for detailed instructions DANGER Be extremely careful not to let the brush your fingers or your clothing get caught in the reels Use approved safety glasses to protect your eyes from flying particles and abrasives BACK GRIND IN THE DIRECTION OF THE ARROW A Note centerline POSITI
33. y 16 Brake tec le 17 Wing Mower Drive Belt Tension 17 Rear Mower Drive Belt Tension 17 Engine Drive Belt 17 Main Drive Belt Tension 17 Troubleshooting i 18 Wiring Diagram SR Electrical Interlock 18 Parts List Ordering lu e EE 19 Frame and Running Gear 20 amp 21 Rear End 22 amp 23 Drive Mechanism and Wing Mower 24 amp 25 Rear Mower 2 udi ete d e act vet oed ee herd 26 amp 27 Wing MOWO6r 1 5 Ei 28 amp 29 Drive and Mower Skids and 30 Deluxe 68 Running Gear and Misc 31 Deluxe 68 Drive PariS 2 2 2 ann 32 amp 33 Deluxe 68 Electrical 34 amp 35 DECLARATION OF CONFORMITY according to Directive 89 392 EEC NATIONAL MOWER COMPANY Name of supplier 700 Raymond Avenue St Paul Minnesota 55114 U S A Full address of the manufacturer authorized representative in the community must also give the business name and address of the manufacturer declare under our sole responsibility that the product 68 NATIONAL TRI
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