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Service


Service Intervals

Every 25 Hours

• Lubricate spindles.

• Lubricate idler sheaves.

• Lubricate driveline.

• Check blades.

• Lubricate front anti-scalp wheels.

• Lubricate rear gauge wheels.

• Check belt.

Every 50 Hours

• Lubricate idler arm pivot.

Every 100 Hours

• Check gearbox oil level.

• Wash mower.

• Lubricate idler arm.

• Check front roller.

• Check rear rollers.

• Check belt.

• Adjust idler arm stop.

Every 500 Hours

• Change gearbox oil

Grease

IMPORTANT: Avoid damage! Use recommended John Deere greases to avoid component failure and premature wear.

The recommended John Deere greases are effective within an average air temperature range of -29 to 135 degrees C (-20 to 275 degrees F).

If operating outside that temperature range, contact your Servicing dealer for a special-use grease.


The following greases are preferred:

• John Deere Multi-Purpose SD Polyurea Grease

• John Deere Multi-Purpose HD Lithium Complex Grease

• John Deere Moly High Temperature EP Grease

If not using any of the preferred greases, be sure to use a general all-purpose grease with an NLGI grade No.2 rating.

Wet or high speed conditions may require use of a special-use grease. Contact your Servicing dealer for information.

NOTE: Some types of grease thickeners are not compatible with others. Consult your grease supplier before mixing different types of grease.

Gear Oil

Use oil viscosity based on the expected air temperature range during the period between oil changes.

John Deere GL-5 Gear Lubricant is recommended.

Other oils may be used if they meet one or more of the following:

• API Service Classification GL-5.

• Military Specification MIL-L-2105D.

• Military Specification MIL-L-2105C.

• Military Specification MIL-L-2105B.

Oils meeting Military Specification MIL-L-10324A may be used as arctic oils.

Lubricating Rear Gage Wheels


M47542

Lubricate rear wheel point (A) with one or two shots of John Deere multipurpose grease or an equivalent.

Lubricating Front Anti-Scalp Wheels


M94482

Lubricate each front anti-scalp wheel (A) and pivot bushing point (B) with one or two shots of John Deere Multipurpose grease or an equivalent.

Lubricating Spindles


M63945

Lubricate three mower spindle points (A) with two shots of John Deere multi-purpose grease or equivalent.

Lubricating Driveshaft


MX15664

Lubricate U-joints (A) and shaft (B) with one or two shots of John Deere EP grease, or an equivalent.

Lubricating Idler Arm Pivot

1. Park the machine safely. (See Parking Safely in the Safety section.)

2. Remove left shield.


M63952

3. Lubricate idler arm pivot (A) with one or two shots of John Deere multi-purpose grease or equivalent.

Removing Belt Shields

1. Park the machine safely. (See Parking Safely in the Safety section.)


M63946

Picture Note: Left side shown.


M63947

Picture Note: Right side shown.

2. Release latches (A).

3. Remove left (B) and right (C) belt shields.

Servicing Gearbox

Checking Gearbox Oil Level

1. Park the machine safely. (See Parking Safely in the Safety section.)


MX15665

2. Remove check plug (A) from either side of gearbox.

3. Oil should be level with bottom of check plug hole.

4. If oil is low add oil specified until it runs out of check plug hole.

5. Install check plug (A).

Changing Gearbox Oil

1. Park the machine safely. (See Parking Safely in the Safety section.)

2. Remove mower from machine.

3. Remove both belt shields.


MX15666

4. Remove nuts (A) from studs.

5. Remove belt from gearbox sheave (B). Remove mounting bracket and gearbox (C) as an assembly.

6. Remove both check plugs (D).

7. Turn gearbox on its side to drain oil.

8. Turn gearbox upright. Add oil as necessary until oil runs out of check plug hole.

9. Install and tighten check plugs (D).

10. Install gearbox assembly. Tighten nuts (A).

11. Install belt on gearbox sheave (B) and on all deck sheaves.

12. Adjust idler arm stop (E).

13. Install belt shields.

Adjusting Idler Stop


M63975

1. Loosen nut (A) on idler stop (B).

2. Put idler stop against idler arm (C) and tighten nut.

Servicing Mower Belt

1. Park the machine safely. (See Parking Safely in the Safety section.)

2. Remove mower from machine.

3. Remove both belt shields.


M63973

4. Loosen nut (A) on idler stop (B) and move away from idler arm.

c CAUTION: Avoid injury! Components are installed under spring tension. Wear eye protection and use proper tools when installing and removing components with spring tension.


M63619

5. With one hand carefully pull back on idler arm (C) to place tension on the spring (D), relaxing tension on the belt. At the same time carefully remove the belt while rotating the movable idler sheave (E).

c CAUTION: Avoid injury! Fingers and hands can be pinched or crushed. Be aware of potential pinch points and keep hands away.

6. Slowly return idler arm and spring back to its relaxed position.


M63971

7. Remove gearbox by removing hex head bolts (F) and locknuts (G).

8. Remove belt (H).

IMPORTANT: Avoid damage! To prevent damage to mower belt, do not clean belt using a parts cleaning solvent or belt dressing. They soften belt and shorten belt life.


9. Clean and inspect belt for damage. Replace belt if necessary.


M63618

10. Install new belt (I). Use illustration for belt routing.

11. Carefully pull back and hold idler arm (C) to release belt tension. Carefully install belt on the movable idler sheave (E).

Checking for Bent Mower Blades

c CAUTION: Avoid injury! Blades are sharp. Always wear gloves when handling blades or working near blades.

Replace blades if defective. Never straighten or weld them.

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Raise mower deck to highest position to access blades.


MX4897

Picture Note: Mower deck with side discharge used for illustration

3. Measure distance (A) between blade tip and flat ground surface.

4. Rotate blade 180? and measure distance between other blade tip and flat ground surface.

5. Install new blade if the difference between the two measurements is more than 3 mm (1/8 in.).

6. Repeat for all blades.

Removing and Installing Blades

Removing Blades

1. Park the machine safely. (See Parking Safely in the Safety section.)

2. Remove mower deck from machine.

c CAUTION: Avoid injury! Machine component or attachment is heavy. Use a safe lifting device or get an assistant to help lift, install or remove component or attachment.

3. Turn mower over.

c CAUTION: Avoid injury! Blades are sharp. Always wear gloves when handling blades or working near blades.

4. Insert wood block between blade and mower to prevent blade from turning when removing bolt.


MX15669

5. Loosen and remove bolt (A), washer (B), blade washer (C), blade (D) and deflector cup (E).

6. Inspect blades; sharpen, balance or replace as necessary.

Installing Blades

1. Install deflector cup (E) on spindle.

2. Position mower blade (D) with the cutting edge towards the ground on the mower spindle.

NOTE: Blade washer must be installed as shown. (Cupped upward.)

3. Install blade washer (C) with cupped side toward blade.

4. Install hardened washer (B).

5. Install bolt (A) by hand, until mower blade is in full contact (fully seated) with spindle.

6. With mower blade blocked, to prevent spinning, tighten bolt (A) to 102 - 124 N•m (75 - 94 lb-ft).

Sharpening Blades

c CAUTION: Avoid injury! Blades are sharp. Always wear gloves when handling blades or working near blades.

Always wear safety eye protection when grinding.

• Sharpen blades with grinder, hand file, or electric blade sharpener.


MIF

• Keep original bevel (A) when grinding.

• Blade should have 0.40 mm (1/64 in.) cutting edge (B) or less.

• Balance blades before installing.

Balancing Blades

c CAUTION: Avoid injury! Blades are sharp. Always wear gloves when handling blades or working near blades.

1. Clean blade.


M61524

2. Put blade on nail in a vise. Turn blade to horizontal position.

3. Check balance. If blade is not balanced, heavy end of blade will drop.

4. Grind bevel of heavy end. Do not change blade bevel.

Replacing Wheels and Rollers

Front and Rear Wheels

1. Park the machine safely. (See Parking Safely in the Safety section.)

2. Start engine.

3. Pull depth control rockshaft lever to rear to fully raise mower deck.

4. Stop engine.

5. Check front and rear wheels for excessive wobble. Replace wheels as necessary.


M94482

6. Replace front wheels:

a. Remove bolt (A) and locknut.

b. Remove wheel (B).

c. Install new wheel, secure using bolt (A) and locknut.


M94481a

7. Replace rear wheels:

a. Remove bolt (C) and washer (D).

b. Remove wheel (E).

c. Install new wheel, secure using bolt (C) and washer (D).

Front Roller

1. Park the machine safely. (See Parking Safely in the Safety section.)


MX15668

Picture Note: Mower deck removed for photo clarity only.

2. Check roller (A) for wear and damage. Roller must turn freely and have no flat spots. Replace roller as necessary.

3. To replace roller:

a. Remove flanged nut (B).

b. Pull out roller shaft (C).

c. Remove roller (A).

d. Install new roller. (See your John Deere dealer for replacement parts.)

e. Install roller shaft (C). Secure using flanged nut (B).

Rear Roller

1. Park the machine safely. (See Parking Safely in the Safety section.)

2. Remove mower from machine.

c CAUTION: Avoid injury! Machine component or attachment is heavy. Use a safe lifting device or get an assistant to help lift, install or remove component or attachment.

3. Turn mower over.


MX15667

4. Check rollers (A) and support brackets for wear or damage. Rollers must turn freely and have no flat spots.

5. To replace rollers:

a. Remove nuts (B).

b. Remove shaft from brackets (C).

c. Install new roller assembly in brackets.

d. Install bracket (C) on studs. Secure using nuts (B).