68 SR TRIPLEX – CE OWNER'S MANUAL
68" SR TRIPLEX – CEOWNER'S MANUALIncludes Operation, Maintenance andParts Lists for SR 68" and DL 68"NATIONAL MOWER CO.OCTOBER – 2001700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A.Phone (651) 646-4079 – Fax (651) 646-2887www.nationalmower.com
NATIONAL MOWER COMPANYONE YEARLIMITED WARRANTYFor the period of one year from the date of purchase (45 days if the productis used for rental purposes), National Mower Company will repair or replace freeof charge, for the original purchaser, any part or parts found by inspection to bedefective by our Factory Authorized Service Station or by the Factory at St. Paul,Minnesota to be defective in material or workmanship or both. All transportationcharges on parts submitted for repair or replacement under this warranty shall bepaid for by the purchaser.This warranty does not include engines, engine parts or tires which arecovered under separate warranties furnished by their manufacture or supplier.All service under this warranty will be furnished and performed by our FactoryAuthorized Service Stations.-THERE IS NO OTHER EXPRESS WARRANTYIMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY ANDFITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE YEARFROM PURCHASE OR 45 DAYS IF THE PRODUCT IS RENTED AND TOTHE EXTENT PERMITTED BY LAW, ANY AND ALL IMPLIED WARRANTIESARE EXCLUDED. THE ABOVE REMEDY OF REPAIR AND REPLACEMENTOF DEFECTIVE PARTS IS THE PURCHASER’S EXCLUSIVE REMEDY FORANY DEFECT, MALFUNCTION OR BREACH OF WARRANTY. LIABILITYFOR INCIDENTAL OR CONSEQUENTIAL DAMAGES UNDER ANY AND ALLWARRANTIES IS EXCLUDED TO THE EXTENT PERMITTED BY LAW.NATIONAL MOWER COMPANY700 Raymond Avenue, St. Paul, Minnesota 55414, U.S.A.268OMCE-10/01-350
NATIONAL 68" SR & DL TRIPLEX – CETABLE OF CONTENTSDeclaration Of Conformity . 4SpecificationsDimensions – Mower . 5Engine – Briggs & Straton . 5Disposal Numbers . 5Noise Emission and Vibration . 5Safe Operating Practices . 6Decal (Transfer) Identification . 7 & 8Introduction . 9Receipt Of Shipment . 9Uncrating Instructions . 9Assembly InstructionsRear Mower . 10 & 11Seat . 10 & 11Wing Mowers . 10 & 11Engine . 10 & 11Differential . 10 & 11MaintenanceLubrication . 13Bed Knife Replacement . 14Lapping and Grinding Procedures. 15AdjustmentsHeight Of Cut . 16Reel To Bed Knife Adjustment . 16Reel End Play Adjustment . 16Brake Adjustment . 17Wing Mower Drive Belt Tension . 17Rear Mower Drive Belt Tension . 17Engine Drive Belt Tension . 17Main Drive Belt Tension . 17Troubleshooting . 18Wiring Diagram—SR Electrical Interlock . 18Parts ListOrdering Information. 19Frame and Running Gear . 20 & 21Rear End . 22 & 23Drive Mechanism and Wing Mower Supports . 24 & 25Rear Mower . 26 & 27Wing Mower . 28 & 29Drive and Mower Skids and Shields . 30Deluxe 68" Running Gear and Misc. Parts . 31Deluxe 68" Drive Parts . 32 & 33Deluxe 68" Electrical Diagram . 34 & 353
DECLARATION OF CONFORMITYaccording to Directive 89/392/EECWeNATIONAL 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 thebusiness name and address of the manufacturer)declare under our sole responsibility, that the product68" NATIONAL TRIPLEX MOWER(Make and model)to which this declaration relates corresponds to the relevant basic safety and health requirements ofthe Directive 89/392/EEC, (if applicable)and to the requirements of other relevant Directives:EN292-1&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, USA10/15/2001(Place and date of issue)4(Name, function and signature of the authorized person)68OMCE-10/01-350
NATIONAL 68" SR & DL TRIPLEX – CESPECIFICATIONSDIMENSIONS & WEIGHT– MOWEROverall Length . 79.13" (201 cm)Width, Wing Mowers Folded . 61.8" (157 cm)Width, Wing Mowers Down . 76" (193 cm)Height . 39.37"(100 cm)Weight (empty) . 639.5 lbs. (290 kg)ENGINE – BRIGGS & STRATTONEngine Type . Forced Air Cooled, 4-cycle, Horizontal Shaft, OHV EngineNumber Of Cylinders . OneBore and Stroke . 2.99" x 2.17" (76 x 55 mm)Piston Displacement . 215ccMaximum Horsepower . 7.5 hp (5.6 kW)) / 3600 rpm (Corrected per SAE J1349)Maximum Torque . 12.5 ft/lbs (16.5 N-m) at 2500 rpmDirection Of Rotation . Counterclockwise Facing The PTO ShaftFast Idle Speed .4000 rpmSlow Idle Speed .1750 rpmFuel . Unleaded Gasoline (Petrol)Fuel Tank Capacity . 4.80 US qt (4.54)Minimum Specific Fuel Consumption Ratio . 240 gr/hp-hr (322 gr/kW-hr)Oil . Engine Oil SAE 10W-30Oil Capacity . 1.90 US pt (.90)Carburetor . Float Type with Fixed Main JetBalancing . Reciprocating BalancerIgnition . Flywheel Magneto, Transistor TypeSpark Plug . Resistor TypeStarter . Recoil Starter with Automatic Compression ReleaseGovernor . MechanicalLubrication Type . Splash with Low Oil Shut-off SystemAir Cleaner . Dual ElementMuffler . Low Tone TypeLighting Coil . 12 V–25 WCharging Coil . 10 ANet Weight (Engine) . 59.1 lbs (26.8 kg)Dimensions (L x W x H) . 13.5" x 15.6" x 17.0" (344.5 x 395.5 x 432.5 mm)DISPOSAL NUMBERSGasoline (Petrol), Lead Free . 54104Engine Oil . 54112Fiberglass Parts . 57103Tires . 57502Gear Oil . 54112Grease . 54202Plastic Tanks . 57127NOISE EMISSION AND VIBRATIONSound*:Operator Position . 86 dBASound Power Level (LwA) . 99 dBAVibration*: Maximum Vibration 16.1 m/s2 RMSLocation . Left Hand*Operating Condition: Engine rpm–3400, Unit Stationary5
IMPORTANTNational Mower Safe Operation PracticesFor Riding Mowers1. Know control functions and how to stop quickly. READ THE OWNER’S MANUAL.2. Wear approved safety glasses or goggles when operating the mower.3. Do not allow children to operate mower. Do not allow adults to operate mower without properinstruction.4. Do not carry passengers. Keep children and pets at a safe distance from an operating mower.5. Clear the work place of objects which might be picked up by the blades and thrown.6. Disengage all reel clutches and shift into neutral before attempting to start the engine (motor). Disengage mainclutch before shifting reel clutches.7. Disengage power to the reels and stop the engine (motor) before leaving the operator’s position.8. Disengage power to the reels and stop the engine (motor) before making any repairs or adjustments.9. Disengage power to the reels when transporting or not in use.10. Take all possible precautions when leaving the mower unattended, such as, shifting into neutral, setting theparking brake, stopping the engine and removing the ignition key.11. Do not stop or start suddenly when going uphill or downhill. Mow up and down the face of steep slopes – neveracross steep slopes. Do not exceed a slope of 25o in any direction.12. Reduce travel speed on slopes and in sharp turns to prevent tipping or loss of control. Use extreme cautionwhen changing direction on slopes.13. Watch for holes in the terrain and other hidden hazards.14. Watch for dangerous traffic when crossing or near roadways.15. Never direct the discharge of material from operating reels toward bystanders nor allow anyone near the mower.16. Handle gasoline (petro)l with CAUTION - it is highly flammable.a.Use an approved gasoline (petrol) container.b.Never remove the fuel tank cap or add gasoline (petrol) to a running or hot engine. Never fill the fuel tankindoors. Wipe spilled gasoline (petrol) immediately.c.Open garage doors to allow ventilation if engine is run inside – exhaust fumes are dangerous. Do not runengine in any enclosed area.17. Keep the mower in good operating condition. Make sure that all safety switches are operating properly andall safety guards are in place at all times, except during servicing.18. Keep all nuts, bolts, and screws tight to be sure that the mower is in a safe working condition.19. Never store the mower, with gasoline (petrol) in the tank, inside a building where fumes could reach an open flameor spark. Allow the engine to cool before storing in any enclosure.20. Keep the engine free of grass, leaves or excessive grease to reduce a fire hazard.21. The mower and reels should be stopped and inspected for damage after striking a foreign object. The damageshould be repaired before restarting and operating the mower.22. Do not change the engine governor settings or overspeed the engine.23. 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.Shut the 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 & CA H & SC 13005) to equip theirengines with spark arresters when operating in flammable vegitation. Arresters must be obtained from yourengine dealer and are not available from National Mower Company.668OMCE-10/01-350
NATIONAL 68" SR & DL TRIPLEX – CETRANSFER IDENTIFICATION12NATIONAL MOWER CO.700 RAYMOND AVE.ST. PAUL, MINNESOTA 55114 USA651-646-4079FAX 651-646-2887YEAR OF MANUFACTURE: 2000POWER RATING: 7.5 (5.6 kW) at 3600 RPMWEIGHT: 639.5 lbs (290 kg)3457
678NO.120735807358307358away458PART NO.07363073636073597073598073599073599TRANSFER DESCRIPTIONDo not exceed 25o slope. Located on main belt shield.Manufacturer's identification and specifications. Locatedon the main belt shield.Read Operator's Manual. Refer to manual for adjustments.Caution: Machine is used only as a lawn mower. Keepbystanders. Located on main belt shield.Sound power level. Located on main belt shield.Sound Level, operator's position. Located on main beltshield.Forward, Neutral and Reverse positions. Located on mainbelt shield.Rear mower clutch engagement. Located on the rearmower shield.Wing mower clutch engagement. Located on main beltshield.Engine clutch lever: Back, Neutral & Forward. Located onmain belt shield.68OMCE-10/01-350
NATIONAL 68" SR & DL TRIPLEX – CEINTRODUCTIONThis machine has been designed to meet EuropeanCE Safety Standards. Metric eqivalents are providedwherever possible for users outside the United States.This manual has been prepared by National MowerCompany as an aid to users for assembly, maintenance,adjustment and ordering replacement parts. Additionalinformation will gladly be furnished by calling or writing themanufacturer or his authorized agent.Please furnish us with the Model Number, SerialNumber and Date of Purchase when contacting us aboutyour machine. Designations of right, left, front and rearare used as if the operator was sitting in the mower seat.RECEIPT OF SHIPMENTCarefully inspect your machine and crate for damage that could have occured during shipment. If damagesor shortages are noted, have the transportation company’srepresentative note this on the bill of lading.NOTEClaims for shipping damages must be noted by theconsignee at the point of destination and filed with thetransportation company that delivers the shipment.UNCRATING INSTRUCTIONSIn order to prevent possible damage to the machine orpersonal injury, the following uncrating procedure mustbe followed:1. Position Crate 1 as shown in Figure A, on a hard, levelsurface.2 Cut and 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 forinstallation later. Save the bolt and washer to use formounting the seat mounting member.4. Lift Rear Mower (4, Fig. A) off the crate supportingmembers and set aside for later attachment.CAUTIONCAUTIONHandle mowers carefully with protective gloves.Reels rotate freely and are very sharp.5. Make sure Wing Mowers (5, Fig. A) are secure to themower frame with Wing Mower Hooks (15, Fig. B).6. Knock down all sides of crate and remove. Roll mowerbackwards off of crate base.FIGURE A9
FIGURE B1068OMCE-10/01-350
NATIONAL 68" SR & DL TRIPLEX – CEASSEMBLY INSTRUCTIONSREAR MOWERWING MOWERS1. Remove two 1/2" x 1-1/2" Hex Head Bolts (1, Fig. B)and nuts from the shipping position in the Seat Hingeassembly (2, Fig. B). Position Seat Hinge Assemblywith pivot facing rearward, over the seat mount of themower frame and fasten with Bolts (1, Fig. B) and locknuts.1. Remove Wing Mower Belts (17, Fig. B) from the steering column.2. Pivot Seat Brace (3, Fig. B) from the axle so that thetop end aligns with the tab at the back of the seathinge assembly. Fasten with a 5/16" x 1" Hex HeadBolt, Lock Washer and Hex Nut.3. Remove the Lifter Tee (4, Fig. B) from the shippingposition in the Pivot Tube (5, Fig. B) and set asidecotter pin and washer for later use. Insert the rod endof lifter tee through the slotted hole in the pad on therear mower frame and secure with the cotter pin andwasher as shown.4. Fasten
68" SR TRIPLEX – CE NATIONAL MOWER CO. 700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A. Phone (651) 646-4079 – Fax (651) 646-2887 www.nationalmower.com OWNER'S MANUAL Includes Operation, Maintenance and Parts Lists for SR 68" and DL 68" OCTOBER – 2001. 2 68OMCE-10/01-350 NATIONAL MOWER COMPANY ONE YEAR
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