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Service Mower


Removing Mower

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

2. Allow engine and muffler to cool completely.

c CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower:

• Disconnect spark plug wire(s) or battery negative (-) cable to prevent engine from starting accidently.

• Always wear gloves when handling mower blades or working near blades.

3. Adjust mower cutting height to lowest position.


MX37958

4. Rotate all mower anti-scalp wheels to allow mower deck to be rolled outward away from machine:

a. Remove locking pin and pin from anti-scalp wheel shaft.

b. Rotate mower wheel (A) 90?, as shown. Install locking pin and pin to lock wheel in position.

c. Repeat for all anti-scalp wheels.

5. Lower mower deck.

c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.

6. Grasp and hold tension rod (B) securely. Disengage rod from retaining bracket (C) by rotating rod counterclockwise. Move rod as far as possible toward rear wheel to remove all belt tension.


MX36287

7. Remove separate drive belt (D) from engine sheave (E), and move tension rod back into retaining bracket.


MX36288

8. Pull and rotate J-pin (F) to release and move rear draft arm (G) away from deck bracket (H). Raise deck slightly with deck handle to remove pressure on pin when pulling out. Repeat on other side.


MX36204

9. Remove front draft rod (I) from mower bracket (J).

10. When operating the machine without the mower deck:

• Remove locking clip (K) from stud (L) on each side, and remove front draft rod from draft bracket (M). Note orientation of stud offset when removing, correct offset is above rod.

11. Raise draft arms to transport position.

12. Slide mower out from under the machine.

Installing Mower

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

2. Allow engine and muffler to cool completely.

c CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower:

• Disconnect spark plug wire(s) or battery negative (-) cable to prevent engine from starting accidently.

• Always wear gloves when handling mower blades or working near blades.

3. Adjust mower cutting height to lowest position.


MX32689

4. Slide mower deck under tractor and line up deck bracket (A) with draft arm (B).

5. Unlock mower lift lock lever.

c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.

Lock lift pedal when installing or removing mower deck.

6. Pull lift pedal by hand to lower draft arms. Hold pedal securely and lock mower lift lock lever.


MX36204

7. Install front draft rod (C) into mower bracket (D).

If draft rod assembly has been removed from machine:

a. Install mounting stud (E) into draft bracket (F) at each side. Note orientation of stud offset when installing, correct orientation is for stud to be offset above draft rod.

b. Secure each side with locking clip (G).

c. Install draft rod into mower bracket.


MX36288

8. Pull back J-pin (H) and insert through deck bracket (A) and draft arm (B). Make sure pin installs completely through deck bracket. Repeat for other side.

c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.

IMPORTANT: Avoid damage! The belt will be damaged if installed wrong. Route the belt properly through belt guides. See belt routing label on mower deck.



MX36287


MX37960

9. Grasp and hold tension rod (I) securely. Disengage rod from retaining bracket (J) by rotating rod counterclockwise. Move rod as far as possible toward rear wheel. Install separate drive belt (K) onto mower deck and engine sheave (L), and move tension rod back into retaining bracket.

10. Level mower.

11. Raise the deck to cutting height and rotate all mower anti-scalp wheels (M) to operation position:

• Remove locking clip (N) and pin, and move wheel to proper hole position. Install pin and locking clip to secure wheels in position.

Replacing Mower Drive Belt (48 and 54 Mower)

Replacing Primary Belt

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

2. Allow engine and muffler to cool completely.

3. Lower mower deck.

c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.

4. Remove drive belt tension:


MX36286

Picture Note: 48 mower shown. Lever on left side.

• Grasp and hold tension rod (A) securely.

• Disengage rod from retaining bracket (B) by rotating rod counterclockwise.

• Move rod as far as possible toward rear wheel to remove all belt tension.


MX36287

5. Remove primary mower drive belt (C) from engine sheave (D), and move tension rod back into retaining bracket.

6. Clean belt with a clean cloth.

7. Inspect belt for wear or damage; replace as necessary.

8. Install belt on mower sheave and engine sheave.

9. Pivot drive belt tension rod toward front of machine to tighten drive belt. Hook tension rod into bracket on mower.

Replacing Secondary Belt

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

2. Allow engine and muffler to cool completely.

3. Remove mower deck.

4. Remove drive belt:


MX39602

Picture Note: 54 mower shown.

• Remove one cap screw on each belt shield (A), and slide belt shields outward to remove tabs on belt shields from slotted holes (B) in mower deck.

• Remove bolt and belt guide (C).

• Remove small spring locking pin (D), and remove tension rod (E) from tension handle bracket (F).

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.


• To remove belt, rotate tension arm (G) slightly counter clockwise, and remove belt from sheaves.

5. Inspect belt for wear or damage; replace as necessary.

6. Clean top surface of mower deck and sheaves.

7. Install belt on mower deck as shown. Make sure belt is under tension rod (E), and in the groove of each sheave. If necessary, rotate tension arm (G) slightly to place belt onto the last sheave.

8. Install and tighten belt guide (C).

9. Install tension rod (E) onto tension handle bracket (F), and secure with small spring locking pin (D).

10. Install belt shields onto slotted holes on mower deck and slide each shield towards center of deck. Secure each shield with one cap screw.

11. Install mower deck.

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.

Servicing Mower Blades

c CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower:

• Disconnect spark plug wire(s) or battery negative (-) cable to prevent engine from starting accidently.

• Always wear gloves when handling mower blades or working near blades.


MX36300

Removing Mower Blades

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

2. Raise mower deck to gain access to mower blades. If necessary, remove mower deck.

3. Block mower blade with a piece of wood to prevent it from spinning.

4. Remove mower blade(s):

• Loosen and remove bolt (A), washer (B), and blade (C).

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

Installing Mower Blades

1. Make sure deflector cup (D) is seated properly between mower spindle and blade.

2. Position mower blade (C) with cutting edge toward ground onto mower spindle.

3. Install washer (B), with cupped side towards blade, and install bolt (A) to secure blade onto spindle shaft.

4. Block mower blade with a piece of wood to prevent spinning and tighten bolt to 68 N•m (50 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.