National Mower CE SR 68, CE DL 68 User Manual

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Page 1

68" SR TRIPLEX – CE

OWNER'S MANUAL

Includes Operation, Maintenance and

Parts Lists for SR 68" and DL 68"

NATIONAL MOWER CO.

OCTOBER – 2001

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

Page 2

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 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 under this 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 PURCHASER’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.

68OMCE-10/01-350

Page 3

TABLE OF CONTENTS

Declaration Of Conformity............................................................................... 4

Specifications

Safe Operating Practices ................................................................................ 6

Decal (Transfer) Identification ................................................................... 7 & 8

Introduction ..................................................................................................... 9

Receipt Of Shipment ....................................................................................... 9

Uncrating Instructions ..................................................................................... 9

Assembly Instructions

Maintenance

Adjustments

Troubleshooting ............................................................................................ 18

Wiring Diagram—SR Electrical Interlock ...................................................... 18

Parts List

NATIONAL 68" SR & DL TRIPLEX – CE

Dimensions – Mower ................................................................................ 5

Engine – Briggs & Straton ...................................................................... 5

Disposal Numbers .................................................................................... 5

Noise Emission and Vibration .................................................................. 5

Rear Mower .................................................................................... 10 & 11

Seat ................................................................................................ 10 & 11

Wing Mowers .................................................................................. 10 & 11

Engine ............................................................................................ 10 & 11

Differential ...................................................................................... 10 & 11

Lubrication .............................................................................................. 13

Bed Knife Replacement .......................................................................... 14

Lapping and Grinding Procedures......................................................... 15

Height Of Cut .......................................................................................... 16

Reel To Bed Knife Adjustment ............................................................... 16

Reel End Play Adjustment ...................................................................... 16

Brake Adjustment ................................................................................... 17

Wing Mower Drive Belt Tension ............................................................. 17

Rear Mower Drive Belt Tension ............................................................. 17

Engine Drive Belt Tension ...................................................................... 17

Main Drive Belt Tension ......................................................................... 17

Ordering Information............................................................................... 19

Frame and Running Gear ............................................................... 20 & 21

Rear End ........................................................................................ 22 & 23

Drive Mechanism and Wing Mower Supports ................................ 24 & 25

Rear Mower .................................................................................... 26 & 27

Wing Mower .................................................................................... 28 & 29

Drive and Mower Skids and Shields....................................................... 30

Deluxe 68" Running Gear and Misc. Parts ............................................. 31

Deluxe 68" Drive Parts ................................................................... 32 & 33

Deluxe 68" Electrical Diagram ........................................................ 34 & 35

Page 4

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 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 TRIPLEX 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&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 10/15/2001

(Place and date of issue) (Name, function and signature of the authorized person)

68OMCE-10/01-350

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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 ............................................................................................................ 39.37"(100 cm)

Weight (empty) ......................................................................................... 639.5 lbs. (290 kg)

ENGINE – BRIGGS & STRATTON

Engine Type .............................. Forced Air Cooled, 4-cycle, Horizontal Shaft, OHV Engine

Number Of Cylinders ...................................................................................................... One

Bore and Stroke .......................................................................... 2.99" x 2.17" (76 x 55 mm)

Piston Displacement .................................................................................................... 215cc

Maximum 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 rpm

Direction Of Rotation............................................ Counterclockwise Facing The PTO Shaft

Fast Idle Speed .......................................................................................................4000 rpm

Slow Idle Speed ......................................................................................................1750 rpm

Fuel ............................................................................................ 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-30

Oil Capacity .................................................................................................. 1.90 US pt (.90)

Carburetor ............................................................................. Float Type with Fixed Main Jet

Balancing ......................................................................................... Reciprocating Balancer

Ignition .......................................................................... Flywheel Magneto, Transistor Type

Spark Plug ...................................................................................................... Resistor Type

Starter ................................................. Recoil Starter with Automatic Compression Release

Governor ............................................................................................................. Mechanical

Lubrication Type .......................................................... Splash with Low Oil Shut-off System

Air Cleaner ....................................................................................................... Dual Element

Muffler ........................................................................................................... Low Tone Type

Lighting Coil ......................................................................................................... 12 V–25 W

Charging Coil ................................................................................................................. 10 A

Net 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)

NATIONAL 68" SR & DL TRIPLEX – CE

DISPOSAL NUMBERS

Gasoline (Petrol), Lead Free ....................................................................................... 54104

Engine Oil .................................................................................................................... 54112

Fiberglass Parts ........................................................................................................... 57103

Tires .............................................................................................................................57502

Gear Oil ........................................................................................................................ 54112

Grease ......................................................................................................................... 54202

Plastic Tanks ................................................................................................................ 57127

NOISE EMISSION AND VIBRATION

Sound*: Operator Position ...................................................................................... 86 dBA

Sound Power Level (LwA) ........................................................................ 99 dBA

Vibration*: Maximum Vibration 16.1 m/s2 RMS

Location ................................................................................................ Left Hand

*Operating Condition: Engine rpm–3400, Unit Stationary

Page 6

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 thrown.

6. Disengage all reel clutches and shift into neutral before attempting to start the engine (motor). Disengage main clutch 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 the parking 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 – never across steep slopes. Do not exceed a slope of 25

12. Reduce travel speed on slopes and in sharp turns to prevent tipping or loss of control. Use extreme caution when 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 tank

indoors. Wipe spilled gasoline (petrol) immediately.

c. Open garage doors to allow ventilation if engine is run inside – exhaust fumes are dangerous. Do not run

engine in any enclosed area.

17. 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.

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 flame or 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 damage should 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.

in any direction.

WARNING– California, USA residents are required by law (CA PRC 4442 & CA H & 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.

68OMCE-10/01-350

Page 7

TRANSFER IDENTIFICATION

NATIONAL MOWER CO.

ST. PAUL, MINNESOTA 55114 USA

651-646-4079 FAX 651-646-2887

700 RAYMOND AVE.

NATIONAL 68" SR & DL TRIPLEX – CE

YEAR OF MANUFACTURE: 2000

POWER RATING: 7.5 (5.6 kW) at 3600 RPM

WEIGHT: 639.5 lbs (290 kg)

Page 8

NO.

PART NO.

1 07358 Do not exceed 25o 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 Forward, Neutral and Reverse positions. Located on main

belt shield.

7 07359 Rear mower clutch engagement. Located on the rear

mower shield.

8 07359 Wing mower clutch engagement. Located on main belt

shield.

9 07359 Engine clutch lever: Back, Neutral & Forward. Located on

main belt shield.

TRANSFER DESCRIPTION

68OMCE-10/01-350

Page 9

INTRODUCTION

NATIONAL 68" SR & DL TRIPLEX – CE

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 damage that could have occured during shipment. If damages or shortages 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 shown in Figure A, on a hard, level surface.

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 for installation later. Save the bolt and washer to use for mounting the seat mounting member.

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.

NOTE

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.

CAUTION

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.

CAUTION

FIGURE A

Page 10

FIGURE B

68OMCE-10/01-350

Page 11

ASSEMBLY INSTRUCTIONS

NATIONAL 68" SR & DL TRIPLEX – CE

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 with pivot facing rearward, over the seat mount of the mower frame and fasten with Bolts (1, Fig. B) and lock nuts.

2. 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.

3. 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.

4. 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.

WING MOWERS

1. Remove Wing Mower Belts (17, Fig. B) from the steering column.

2. Unlock Hooks (18, Fig. B) from Wing Mower Assemblies (19, Fig. B), lower them carefully to the ground. Slip wing mower belts over Countershaft Pulleys (20, Fig. B).

3. 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

MOWER IS SHIPPED WITH DRY ENGINE. DO NOT START ENGINE UNTIL OIL IS ADDED TO CRANKCASE. See Engine Manual for additional information.

5. 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 necessary to refer to the rear Mower Drive Belt Tension section and Figure K, page 17 for adjusting belt tension.

6. 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 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.

DIFFERENTIAL

Grease has been installed in the differential at the factory. Refer to the Maintenance Section, page 7, for additional information.

Page 12

OPERATION

FIGURE C

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.

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 lowered to 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 best to slow the mower with the throttle and then disengage clutch lever before applying brake. This prevents excessive wear and engine overload. 12

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 the 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.

68OMCE-10/01-350

Page 13

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 is not critical providing that there is sufficient grease to coat the gears.

Unless leakage is evident, it is recommended that the

NATIONAL 68" SR & DL TRIPLEX – CE

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.

FIGURE D

LUBRICATION CHART

ITEM GREASE OIL FEQUENCY

Gear Grease

8 Hours

30 Hours

Yearly

IMPORTANT

Figure E shows the top view of the left wing mower with guards removed and shows the proper lubrication locations. These areas on both wing mowers must be free of dirt and grass clippings and be well lubricated for proper drive belt tension and operation. Support collars for the wing mower pull rods must be kept in alignment to maintain belt tension.

FIGURE E

Page 14

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 assembled at the factory under tension. To ease replacement and prevent misalignment 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

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). Shoulder 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/lbs.

FIGURE F

68OMCE-10/01-350

Page 15

INTRODUCTION

LAPPING PROCEDURE

NATIONAL 68" SR & DL TRIPLEX – CE

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 run 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 manufacture.

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.

3. Apply the lapping compound with the reels running, using a 2" or a 3" 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. Premixed compound saves the time 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 I, 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).

BACK GRIND IN THE

DIRECTION

OF THE ARROW AT 25

FIGURE G

GRINDING

Note centerline

POSITION OF

REEL

TO THE BLADE

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 diameter.

For maximum cutting efficiency, grind bed knife top and front edges at 5° as shown in Figure H.

GRIND BED KNIFE

AT ANGLES SHOWN

FIGURE H

Page 16

ADJUSTMENTS

To ensure safety, all of the following adjustments 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. I) which hold Roller Adjusters (2, Fig. I) in Roller Brackets (3, Fig. I). Roller (4, Fig. I) 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

entire width of the mower. Do not adjust by sight. Place the mower on a hard, level surface. Loosen the Adjusting Nuts (1, Fig. I) on each side of reel assemblies and place a board or gauge plate 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. I) 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 that it is 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.

FIGURE I

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 could 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. I) which is located on the inside right end of the reels, and turning the adjustment bolt IN one half turn 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.

68OMCE-10/01-350

Page 17

NATIONAL 68" SR & DL TRIPLEX – CE

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 Belt tension allows mowers to be driven without slippage but loose enough to be deflected slightly at a 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.

NOTE

Guards removed

to show detail

FRONT

MACHINE

REAR MOWER DRIVE BELT TENSION

Follow the recommendations 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 of the 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. Test for the proper tension as detailed

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.

Page 18

Tractor Unit

TROUBLE-SHOOTING

Situation

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 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)

Things To Check

Cutting Units

Situation Things To Check

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)

All adjusting must be made with the engine off. Do not do any investigation of the working parts of the machine with the motor running. Always turn the engine off!

Check wiring connections and switch operation—see Figure 9, page 34

68OMCE-10/01-350

Page 19

NATIONAL 68" SR & DL TRIPLEX – CE

ENGINE

PARTS LIST

KEY

SWITCH

Black

A B C D E F

Red

Brown

Yellow

INTERLOCK

CONNECTOR

INTERLOCK

MODULE ASSY.

204988

GROUND

NEUTRAL START

OPERATOR PRESENCE

Yellow

SWITCH N/O

07035

FIGURE K

SWITCH N/O

07035

Yellow

OPERATOR PRESENCE

SWITCH N/O

07035

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 contained 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.

Page 20

FIGURE 1

WHEN ORDERING, STATE THE MODEL AND SERIAL NUMBERS OF THE MOWER

68OMCE-10/01-350

Page 21

NATIONAL 68" SR & DL TRIPLEX – CE

11212611211111142211111

1—1111112

2AR221

SEAT MOUNT

FRAME

REAR TIRE & WHEEL ASSEMBLY

FOOT REST, Left Hand

BUSHING, Axle Pivot

BUSHING, Spindle and Steering Post

DRAG LINK

KING PIN, Left Hand

TIRE & WHEEL

SHAFT, Steering

AXLE ASSEMBLY, Front

TIE ROD

PIN, Clevis Tie Rod

KING PIN, Right Hand

BUMPER, Front

BEARING, Wheel Hub

DUST CAP, 3/4'’ I.D.

DUST CAP, 7/8'’ I.D.

FIGURE 1 — FRAME & RUNNING GEAR

200818

200002

07018

200085

201961

06002

09014

200193

07038

200094

200186

201851

04003

200196

200033

06112

02602

02603

123456789

Item DescriptionPart No. Qty.

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

10111213141516

________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________________

CLEVIS, Threaded, Tie Rod

PEDAL, Brake

SWITCH, Safety

FOOT REST, Right Hand

SWITCH, Interlock

GUARD, Main Belt

Not used

STEERING WHEEL

SEAT

COLLAR, Steering Shaft

THROTTLE CONTROL, (Includes conduit and wiring)

BRACKET, Throttle Control

SWITCH, Key, Briggs & Stratton and Kawasaki

HINGE, Seat

SPRING, Seat

DECALS (Transfers) for CE Models — See Pages 7 & 8

BALL JOINT

200863

200104

07035

200139

204988

09016

—

200200

07036

200199

07032

200203

07034

200814

04512

----------

200867

18192021222324252627282930313233343536

______________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________

SWITCH, Seat

BRACKET, Seat Switch

07035

204987

_______________________________________________________________________________________________________________________________________

Page 22

FIGURE 2

WHEN ORDERING, STATE THE MODEL AND SERIAL NUMBERS OF THE MOWER

68OMCE-10/01-350

Page 23

NATIONAL 68" SR & DL TRIPLEX – CE

111111111

Qty.

RETAINING RING, Pinion gear

BULL GEAR ASSEMBLY, Complete

SHAFT UNIT, Intermediate

WASHER, 1-1/8" I.D.

SLEEVE, Axle Bearing

BEARING, Right Axle

SPACER, Right Axle

Description

09012

200066

Part No.

200070

02607

200088

SEAL, Rear Axle

06103

02510

03510

ARARAR

WASHER, Bearing, Left Axle, 1-1/8"

BEARING, Left Axle

SHIM, Left Axle, 10 Ga.

SHIM, Left Axle, 14 Ga.

02510

06104

200687

200821

1111411111111111111

SPACER, Left Axle, 1/32"

SHIM, Axle Spacer, 22 Ga.

COLLAR, Rear Axle

CAP, Left Axle

WHEEL HUB, Left Rear

PIN, Collar, Rear Axle, 1/4" x 1-3/4"

KEY, Woodruff, #11

LOCK RING, 7/8"

BRAKE BAND ASSEMBLY

200685

200688

200095

200096

200090

04016

04013

04020

200099

O-RING, 7/8"

DUST CAP, 7/8"

PULLEY, Step

BRAKE DRUM

KEY, Woodruff, #9

03502

02603

03618

200097

04012

SHAFT, Shifting Countershaft

LOCK RING, 3/4"

LEVER, Brake Band

DUST CAP, 3/4"

O-RING, 3/4"

COUNTERSHAFT CARRIER UNIT, Shifting

CARRIER, Shifter

BUSHING, Shifter Lever

200055

04011

200102

02602

03511

200056

200063

200676

3637383940414243444546

Item

Qty.

___________________________________________________________________________________________________________________________________________________

111111112111112111111114111211111

FIGURE 2 — REAR END

SPRING, Shifter Lever

BUSHING, Shifter Lever Bushing

SHIFTER LEVER

GRIP, Shifter

CLEVIS, Brake

PIN, Brake Pedal, 3/8" x 1-1/4"

STOP DISC, Shifter

ROD UNIT, Brake

NEEDLE BEARING, Rear Countershaft

U-BOLT, Shifter

___________________________________________________________________________________________________________________________________________________

BRACKET,Parking Brake Pull

ROD, Formed, Parking Brake

48495051525354555657585960616263646566

___________________________________________________________________________________________________________________________________________________

LEVER, Parking Brake

BUSHING

NEEDLE BEARING, Intermediate Shaft

__________________________________________________________________________________________________________________________________________________

GASKET, Back Plate Cover

COVER, Differential Case, Inside

SLIDING WASHER, Differential Case

___________________________________________________________________________________________________________________________________________________

PIN, Spring (Roll PIn), 5/16" x 1-1/8"

GEAR, Shifting, 11 Tooth

GEAR, Reverse

___________________________________________________________________________________________________________________________________________________

BUSHING, Reverse Gear

SHAFT, Reverse Gear

PINION, Differential

___________________________________________________________________________________________________________________________________________________

GASKET SET, Differential

COVER, Differential Case, Outside

HUB, Rear Wheel, Right

___________________________________________________________________________________________________________________________________________________

BUSHING, Rear Wheel Hub

DUST WASHER, 1-1/8"

O-RING, 1-1/8"

_________________________________________________________________________________________________________________________________________________

SPLIT DISC SEAL, Wheel Hub, Right Rear

SEAL, Oil

AXLE ASSEMBLY, Rear

BUSHING, Bull Gear

Part No. Description

04502

200675

200064

07007

04021

123456789

Item

___________________________________________________________________________________________________________________________________________________

04022

200061

___________________________________________________________________________________________________________________________________________________

200103

06102

08010

201432

08037

201433

200676

06101

07003

200234

200051

04008

200054

200050

06003

200049

200069

07009

200065

200079

06005

200680

03504

10111213141516171819202122232425262728293031323435

___________________________________________________________________________________________________________________________________________________

__________________________________________________________________________________________________________________________________________________

___________________________________________________________________________________________________________________________________________________

200084

03503

200075

06004

___________________________________________________________________________________________________________________________________________________

Page 24

FIGURE 3

WHEN ORDERING, STATE THE MODEL AND SERIAL NUMBERS OF THE MOWER

68OMCE-10/01-350

Page 25

NATIONAL 68" SR & DL TRIPLEX – CE

Qty.

Description

Part No.

Item

11111111111111111621111

ARM, Countershaft Idler

BRACKET, Idler Pivot

200176

200173

2526272829303132333435363738394041424344454647

STUD, Belt Guide

BELT GUIDE, Lower

BELT GUIDE, Upper

ROD, Main Clutch, Upper

ROD, Main Clutch, Lower

PULLEY, Motor

202445

201541

201538

200165

08021

03609

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

BELT, Engine, Kawasaki, 6844 Gates Rated

KEY, Square, Engine,

ARM, Main Belt Idler

SPRING, Main Belt Idler Arm

LEVER, Engine Clutch

KNOB, Clutch Lever

GUARD, Engine Clutch

PULLEY, Main Countershaft

COUNTERSHAFT, Main

BELT, Drive, B66

KEY, Woodruff, #11

BUSHING, Main Countershaft Housing

HOUSING, Main Countershaft

STEP PULLEY, Main Countershaft

TRANSFER SET, 68" Triplex - CE

03903

200208

200184

04501

200163

07024

09002

03606

200157

03902

04013

06006

200154

200158

07037

________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________

GUIDE, Belt, High Speed Pulley

200530

_____________________________________________________________________________________

Qty.

1112211112224221221111121

FIGURE 3 — DRIVE MECHANISM & SIDE SUPPORTS

GRIP, Lever, '96 and up

LEVER, Lower Countershaft Control

ROD

COLLAR, Lock

SPRING

ROD, Countershaft Idler Control

HOOK, Wing Mower, Left Hand

HOOK, Wing Mower, Right Hand

PULL ANGLE, Wing Mower, Rear

GRIP, Wing Mower Arm

PIN, Wing Mower Arm

PULL ROD, Wing Mower

DUST CAP, 3/4" I.D.

PULL ARM, Wing Mower, Left and Right Hand

SPRING, Wing Mower Pull Rod

CARRIER, Lower Countershaft

PULLEY, Lower Countershaft

BEARING, Lower Countershaft

BELT GUIDE, Pulley

PULLEY, Lower Countershaft Drive

BELT, Countershaft, A29

COUNTERSHAFT, Lower

PULLEY, Countershaft Idler

Part No. Description

Item

07023

200167

200170

200182

04503

200172

1234567

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

200655

200656

200137

07226

201880

200151

02602

201536

04505

200128

03615

06105

200136

03603

03901

101112131415161718192021222324

________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

____________________________________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________________________________

200135

03607

_____________________________________________________________________________________________________________________________________________

IDLER, Engine Clutch

ARM, Engine Clutch

03608

200179

________________________________________________________________________________________________________________________________________________

Page 26

NOTE—Skids and Reel

End Shields are not

shown. See Figure 6

WHEN ORDERING, STATE THE MODEL AND SERIAL NUMBERS OF THE MOWER

FIGURE 4

68OMCE-10/01-350

Page 27

Qty.

Description

NATIONAL 68" SR & DL TRIPLEX – CE

Part No.

26 200223 FRAME, Rear Mower 1

27 07481 CHAIN, Roller, Rear Mower 1

28 203452 LIFTER TEE, Rear Mower 1

29 200214 BRACKET, Guard 1

30 202251 LIFTER HANDLE, Rear Mower 1

31 07039 GRIP, Lifter Handle 1

32 202301 BRACE, Seat 1

33 202249 PIVOT TUBE, Rear Mower 1

34 200271 SHIFTER YOKE, Rear Mower 1

35 03905 BELT, Rear Mower, A42 1

Item

______________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________

36 200388 SHIFTER LUG 1

_______________________________________________________________________________________________________________________________________________

Qty.

FIGURE 4 — REAR MOWER

37 05022 PIN, Clutch 2

38 200273 BRACKET, Clutch Lever 1

39 202438 SPRING 1

______________________________________________________________________________________________________________________________________________

40 200276 LEVER, Clutch Shifter 1

41 07022 GRIP, Shifter Clutch 1

42 02602 DUST CAP, 3/4" I.D. 1

_________________________________________________________________________________________________________________________________________________

43 04506 SPRING, Clutch 1

44 200266 CLUTCH, Sliding Jaw, Rear Mower 1

45 200264 PULLEY ASSEMBLY, Countershaft 1

46 06007 BUSHING, Countershaft Pulley 1

_________________________________________________________________________________________________________________________________________________

47 200123 BUSHING, Pull Yoke 2

48 203172 ROLLER BRACKET, R.H. 1

_______________________________________________________________________________________________________________________________________________

49 04504 SPRING, Idler 1

50 200115 IDLER ARM UNIT, Rear Mower 1

51 03607 PULLEY, Idler 1

______________________________________________________________________________________________________________________________________________

52 201519 SHIELD, Rear Mower 1

_______________________________________________________________________________________________________________________________________

Part No. Description

Item

1 09170 GUARD, Clutch, Rear Mower, '96 and up 1

2 201513 BRACKET, Shield 2

3 200235 UPRIGHT, Shield 2

4 203173 ROLLER 1

________________________________________________________________________________________________________________________________________

5 302847 ADJUSTER, Roller Bracket, L.H. 1

302846 ADJUSTER, Roller Bracket, R.H. 1

6 203248 ROLLER BRACKET, L.H. 1

_______________________________________________________________________________________________________________________________________

7 200109 PULL YOKE, Rear Mower 1

8 200236 REEL TAKE-UP ASSEMBLY 2

9 200256 ADJUSTING SCREW & NUT, Bearing 2

________________________________________________________________________________________________________________________________________

10 200237 PIVOT TUBE, Rear Mower 1

11 200263 COUNTERSHAFT 1

______________________________________________________________________________________________________________________________________________

12 06006 BUSHING, Countershaft 2

13 201735 REEL CARRIER ASSEMBLY, Right Hand 1

14 201437 TAKE-UP, Reel Bearing 2

____________________________________________________________________________________________________________________________________________

15 200261 HOUSING, Countershaft, Rear Mower 1

16 03116 SPROCKET, Countershaft 1

17 04008 PIN, Sprocket Hub, 5/16" x 1-1/8" 1

______________________________________________________________________________________________________________________________________________

18 03115 SPROCKET, Reel 1

19 200241 REEL ASSEMBLY, Rear Mower, 6 Blade 1

20 06120 BEARING, Reel 2

_____________________________________________________________________________________________________________________________________________

06121 CUP, Reel Bearing 2

201802 NUT, Bed Knife Screw 9

21 02109 SCREW, Bed Knife (sold as a set with nut below) 9

________________________________________________________________________________________________________________________________________________

22 201773 BED KNIFE FRAME ASSEMBLY, Rear Mower 1

23 201407 BED KNIFE, 30" 1

24 04549 SPRING, Adjusting 2

_____________________________________________________________________________________________________________________________________________

25 201734 REEL CARRIER ASSEMBLY, Left Hand 1

Page 28

FIGURE 5

68OMCE-10/01-350

Page 29

NATIONAL 68" SR & DL TRIPLEX – CE

FIGURE 5 — WING MOWERS

Item DescriptionPart No. 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

_______________________________________________________________________________________________________________________________________

6 201775 FRAME, Bed Knife, Bolt-on 2

7 201460 SCREW, Flat Head 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 & 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

________________________________________________________________________________________________________________________________________________

23 203172 ROLLER BRACKET, R.H. 2

302846 ADJUSTER, Roller, R.H. 2

201802 NUT, Bed Knife Screw 14

201521 SHIELD, Left Hand 1

Page 30

FIGURE 6

FIGURE 6 — SKIDS, REEL END SHIELDS & GUARDS

Item DescriptionPart No.

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

Qty.

68OMCE-10/01-350

Page 31

NATIONAL 68" SR & DL TRIPLEX – CE

FIGURE 7

FIGURE 7 — DL 68" RUNNING GEAR & MISC. PARTS

Item DescriptionPart No. 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 REST, Left 1

15 07237 TIRE, Deluxe Wide 2

___________________________________________________________________________________________________________________________________

16 07572 INTERLOCK 1

Page 32

FIGURE 8

FIGURE 8 — DL 68" DRIVE PARTS

Item DescriptionPart No. 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

68OMCE-10/01-350

Page 33

NATIONAL 68" SR & DL TRIPLEX – CE

Item DescriptionPart No. 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, Transport 1 34 201966 PEDAL, Transport 1

____________________________________________________________________________________________________________________________________

35 200135 COUNTERSHAFT, Lower 1 36 201926 CARRIER, Lower Countershaft 1

Page 34

GROUND

STARTER

SOLENOID

BATTERY

AMPMETER

GRN.

FRAME

6 GA.

#515 RED

#511 RED

#512 WHITE

WIRING

HARNESS

#516 YELLOW

CLUTCH NEUTRAL

#516 YELLOW

#501 BROWN

MAGNETO

REGULATOR

N/O

#501 BLACK

SAFETY SWITCH

#510 YELLOW

#501 BLACK

ENGINE

#501 BRN.

SEAT

#501 BLACK

FIGURE 9

N/O

SWITCHES

INTERLOCK

HOURMETER

LEAD

KEY

SWITCH

#512 WHITE

#506

#512 RED

ORANGE

GROUND

HARNESS

#501 BLUE

#510 YELLOW

#506 ORANGE

#501 BROWN

#501 RED

GRN.

#516 YELLOW

BLACK

RED

BLK

68OMCE-10/01-350

Page 35

NATIONAL 68" SR & DL TRIPLEX – CE

FIGURE 9 — DL 68" ELECTRICAL DIAGRAM

1 07065 KEY SWITCH 1

2 07063 HOURMETER 1

3 07064 AMPMETER 1

4 N.A. BATTERY 1

5 07104 GROUND, Battery 1

6 07217 LEAD 1

7 07216 HARNESS ASSEMBLY 1

8 07035 SWITCH, Clutch Safety 3

9 07572 INTERLOCK M585 1

Item DescriptionPart No. Qty.

________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________________________________________________

10 07571 WIRING HARNESS 1

_________________________________________________________________________________________________________________________________________

Page 36

68OMCE-10/01-350