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68" SR TRIPLEX – CE
OWNER'S MANUAL
Includes Operation, Maintenance and
Parts Lists for SR 68" and DL 68"
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
OCTOBER – 2001
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NATIONAL MOWER COMPANY ONE YEAR 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 rep
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® NATIONAL 68" SR & DL TRIPLEX – CE TABLE OF CONTENTS Declaration Of Conformity............................................................................... 4 Specifications Dimensions – Mower ................................................................................ 5 Engine – Briggs & Straton ...................................................................... 5 Disposal Numbers .................................................................................... 5 Noise Emission an
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DECLARATION OF CONFORMITY according to Directive 89/392/EEC We NATIONAL MOWER COMPANY .............................................................................................................................................................. (Name of supplier) 700 Raymond Avenue, St. Paul, Minnesota 55114 U.S.A. .............................................................................................................................................................. (Full address of the man
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® NATIONAL 68" SR & DL TRIPLEX – CE SPECIFICATIONS DIMENSIONS & WEIGHT– MOWER Overall Length.............................................................................................. 79.13" (201 cm) Width, Wing Mowers Folded .......................................................................... 61.8" (157 cm) Width, Wing Mowers Down ............................................................................... 76" (193 cm) Height ........................................................
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IMPORTANT National Mower Safe Operation Practices For Riding Mowers 1. 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 proper instruction. 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 t
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® NATIONAL 68" SR & DL TRIPLEX – CE TRANSFER IDENTIFICATION 1 NATIONAL MOWER CO. 700 RAYMOND AVE. ST. PAUL, MINNESOTA 55114 USA 651-646-4079 FAX 651-646-2887 2 YEAR OF MANUFACTURE: 2000 POWER RATING: 7.5 (5.6 kW) at 3600 RPM WEIGHT: 639.5 lbs (290 kg) 3 4 5 7
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6 7 8 9 NO. PART NO. TRANSFER DESCRIPTION o 1 07358 Do not exceed 25 slope. Located on main belt shield. 2 07358 Manufacturer's identification and specifications. Located on the main belt shield. 3 07358 Read Operator's Manual. Refer to manual for adjustments. Caution: Machine is used only as a lawn mower. Keep away bystanders. Located on main belt shield. 4 07363 Sound power level. Located on main belt shield. 5 07363 Sound Level, operator's position. Located on main belt shield. 6 07359 Forwar
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® NATIONAL 68" SR & DL TRIPLEX – CE INTRODUCTION This machine has been designed to meet European information will gladly be furnished by calling or writing the CE Safety Standards. Metric eqivalents are provided manufacturer or his authorized agent. wherever possible for users outside the United States. Please furnish us with the Model Number, Serial This manual has been prepared by National Mower Number and Date of Purchase when contacting us about Company as an aid to users for assembly, main
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10 68OMCE-10/01-350 FIGURE B
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® NATIONAL 68" SR & DL TRIPLEX – CE ASSEMBLY INSTRUCTIONS REAR MOWER WING MOWERS 1. Remove two 1/2" x 1-1/2" Hex Head Bolts (1, Fig. B) 1. Remove Wing Mower Belts (17, Fig. B) from the steer- and nuts from the shipping position in the Seat Hinge ing column. assembly (2, Fig. B). Position Seat Hinge Assembly with pivot facing rearward, over the seat mount of the 2. Unlock Hooks (18, Fig. B) from Wing Mower Assem- mower frame and fasten with Bolts (1, Fig. B) and lock blies (19, Fig. B), lower
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OPERATION FIGURE C The following is a description of the machine controls 6. Parking Brake Lever – Provides a lock for the brake. and their function. Refer to Figure C. Push brake lever forward, over center, to lock. Pulling 1. Engine Clutch Lever (labeled Mowing Clutch) – brake lever back, toward the rear of the machine will Engages power for travel and mowing. Down position is disengage the brake. disengaged and up position is engaged. IMPORTANT – 7. Shifter Lever – Located on the mower diff
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® NATIONAL 68" SR & DL TRIPLEX – CE MAINTENANCE LUBRICATION grease be checked once each year. Check grease level Figure D shows the top view of the 68" Triplex Mower by loosening the bolts in the differential case flanges and with guards removed. Lubricate the machine at the spreading case halves. It is not necessary to totally recommended locations and intervals using the proper disassemble the case or remove the wheels for this lubicants to ensure maximum service and long life of your inspect
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BED KNIFE REPLACEMENT corroded, they may have to be cut off and screws When the bed knife becomes damaged or too worn to driven out to be removed. keep sharp, it must be replaced. Design improvements have made bed knife replacement easier with bolt-on 3. Clean the bottom surface of the backbar for construction. Follow the procedure below. maximum metal contact with the new bed bar. 1. The backbar (1, Fig. F), bed knife (2, Fig. F) and 4. Fasten the new bed knife to the bottom of the fasteners ha
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® NATIONAL 68" SR & DL TRIPLEX – CE LAPPING PROCEDURE INTRODUCTION Back lapping is a very important step in maintaining sharp 3. Apply the lapping compound with the reels running, reel blades on the rear and wing mowers. using a 2" or a 3" brush. Apply the compound evenly to the moving blades. This procedure should be performed when the reel blades Many types of compounds are available for lapping. and the bed knife become slightly rounded and the grass However, we recommend a good pre-mixed wa
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ADJUSTMENTS entire width of the mower. Do not adjust by sight. Place the To ensure safety, all of the following adjust- mower on a hard, level surface. Loosen the Adjusting ments must be made only after the engine Nuts (1, Fig. I) on each side of reel assemblies and place clutch lever has been disengaged and the a board or gauge plate of the desired height under each ignition key and spark plug wire have been bed knife back bar. Tighten bolts securely. removed. REEL TO BED KNIFE ADJUSTMENT HEI
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® NATIONAL 68" SR & DL TRIPLEX – CE BRAKE ADJUSTMENT NOTE The foot brake is properly adjusted if it slows the Guards removed machine when depressed and can be locked when the to show detail 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 Belt tension allows mowers to be driven withou
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TROUBLE-SHOOTING Tractor Unit Situation Things To Check 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 Operator 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 for
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® NATIONAL 68" SR & DL TRIPLEX – CE INTERLOCK OPERATOR PRESENCE SWITCH N/O 07035 CONNECTOR Yellow INTERLOCK TO MODULE ASSY. KEY A B C D E F 204988 SWITCH Red GROUND OPERATOR Brown Yellow PRESENCE NEUTRAL START SWITCH N/O SWITCH N/O 07035 07035 Black Yellow Black ENGINE 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, a
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20 68OMCE-10/01-350 FIGURE 1 WHEN ORDERING, STATE THE MODEL AND SERIAL NUMBERS OF THE MOWER
