Service Mower
Removing Mower (38 Mower)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Adjust mower cutting height to lowest position.
c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.
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NOTE: Because a lift assist may be installed on your machine, you will need to lower deck and then pull lift pedal back by hand to lock the lift lever.
4. Lower mower deck, pull back lift pedal by hand, and pull lift lever up to lock.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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Picture Note: 38 mower. Lever on right side.
5. Grasp tension rod (A), under footdeck, securely. Push and hold tension rod rearward, while removing mower belt from engine sheave.
6. Pull and rotate J-pin (B) to release and move rear draft arm (C) away from deck bracket (D). Raise deck slightly via handle to remove pressure on pin when pulling out. Repeat on other side.
7. Remove front draft rod (E) from machine bracket (F).
8. When operating the machine without the mower deck:
· Remove locking clip (G) from stud (H) on each side, and remove front draft rod from draft bracket (I). Note orientation of stud offset when removing, correct offset is above rod.
9. Raise draft arms to transport position:
a. Pull and hold lift pedal by hand.
d. Pull up latch handle to lock draft arms in transport position.
10. Slide mower out from under the machine.
Removing Mower (42 Mower)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Adjust mower cutting height to lowest position.
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c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.
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NOTE: Because a lift assist may be installed on your machine, you will need to lower deck and then pull lift pedal back by hand to lock the lift lever.
4. Lower mower deck, pull back lift pedal by hand, and pull lift lever up to lock.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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5. Disconnect mower drive belt:
Picture Note: 42 mower. Lever on left side.
· 42 mower- Grasp tension rod (A) securely, and pull and hold tension rod counterclockwise, while removing mower belt from engine sheave.
Picture Note: 42 mulching mower. Lever on right side.
· 42 mulching mower- Grasp tension rod (B) securely, and pull and hold tension rod counterclockwise, while removing mower belt from engine sheave.
6. Pull and rotate J-pin (C) to release and move rear draft arm (D) away from deck bracket (E). Raise deck slightly via handle to remove pressure on pin when pulling out. Repeat on other side.
7. Remove front draft rod (F) from machine bracket (G).
8. When operating the machine without the mower deck:
· Remove locking clip (H) from stud (I) on each side, and remove front draft rod from draft bracket (J). Note orientation of stud offset when removing, correct offset is above rod.
9. Raise draft arms to transport position:
a. Pull and hold lift pedal by hand.
d. Pull up latch handle to lock draft arms in transport position.
10. Slide mower out from under the machine.
Removing Mower (48 and 54 Mowers)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Adjust mower cutting height to lowest position.
4. Rotate all mower wheels to allow mower deck to be rolled outward away from machine:
b. Rotate mower wheel (B) 90° and align hole in wheel shaft with pin.
c. Release pin to lock mower wheel in rotated position.
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c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.
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NOTE: Because a lift assist may be installed on your machine, you will need to lower deck and then pull lift pedal back by hand to lock the lift lever.
5. Lower mower deck, pull back lift pedal by hand, and pull lift lever up to lock.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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Picture Note: 48 mower shown. Lever on left side.
6. Grasp and hold tension rod (C) securely. Disengage rod from retaining bracket (D) by rotating rod counterclockwise. Move rod as far as possible toward rear wheel to remove all belt tension.
7. Remove separate drive belt (E) from engine sheave (F), and move tension rod back into retaining bracket.
8. Pull and rotate J-pin (G) to release and move rear draft arm (H) away from deck bracket (I). Raise deck slightly via handle to remove pressure on pin when pulling out. Repeat on other side.
9. Remove front draft rod (J) from machine bracket (K).
10. When operating the machine without the mower deck:
· Remove locking clip (L) from stud (M) on each side, and remove front draft rod from draft bracket (N). Note orientation of stud offset when removing, correct offset is above rod.
11. Raise draft arms to transport position:
a. Pull and hold lift pedal by hand.
d. Pull up latch handle to lock draft arms in transport position.
12. Slide mower out from under the machine.
Installing Mower (38 Mower)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Adjust mower cutting height to lowest position.
4. Slide mower deck under tractor and line up deck bracket (A) with draft arm (B).
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c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.
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6. Pull lift pedal by hand to lower draft arms. Hold pedal securely and lock lift latch handle.
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.
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.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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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. |
Picture Note: 38 mower deck. Lever on right side.
9. Grasp tension rod (I) securely, and push and hold tension rod rearward, while installing mower belt onto engine sheave.
Installing Mower (42 Mower)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Adjust mower cutting height to lowest position.
4. Slide mower deck under tractor and line up deck bracket (A) with draft arm (B).
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c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.
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6. Pull lift pedal by hand to lower draft arms. Hold pedal securely and lock lift latch handle.
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.
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.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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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. |
Picture Note: 42 mower. Lever on left side.
· 42 mower - Grasp tension rod (I) securely, and pull and hold tension rod counterclockwise, while installing mower belt onto engine sheave.
Picture Note: 42 mulching mower. Lever on right side.
· 42 mulching mower - Grasp tension rod (J) securely, and pull and hold tension rod counterclockwise, while installing mower belt onto engine sheave.
Installing Mower (48 and 54 Mowers)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Adjust mower cutting height to lowest position.
4. Slide mower deck under tractor and line up deck bracket (A) with draft arm (B).
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c CAUTION: Avoid injury! Lift pedal is spring-assisted and may have unexpected movement.
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6. Pull lift pedal by hand to lower draft arms. Hold pedal securely and lock lift latch handle.
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.
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.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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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. |
Picture Note: 48 mower shown. Lever on left side.
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.
11. Raise the deck to cutting height and rotate all mower wheels to operation position:
· Pull pin (K) outward and move wheel to proper hole position. Release pin to lock wheel in position.
Adjusting Lift Assist Spring
NOTE: Weight of mower or attachment affects ease of lifting. Adjust lift assist spring for your particular mower deck model.
1. Make sure yellow indicator (A) is aligned with proper mark for mower deck model installed. If not, adjust lift assist spring so indicator is aligned with correct mower deck mark.
2. Turn adjusting bolt (B) at front of machine frame to adjust lift assist spring:
· Clockwise - Increases spring tension and moves indicator toward front of machine for heavier mowers.
· Counterclockwise - Decreases spring tension and moves indicator toward rear of machine for lighter mowers.
Replacing Mower Drive Belt (38 Mower)
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Allow engine and muffler to cool completely.
· Remove three cap screws and belt shield (A).
· Loosen hardware for two sheaves (B) and belt guide (C).
· Remove top nut (D) and belt guide (E).
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 in the groove of each sheave and inside belt guide (C).
9. Install belt guide (E) and top nut (D).
10. Tighten sheave hardware to 54 N·m (40 lb-ft).
Replacing Mower Drive Belt (42 Mower)
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Allow engine and muffler to cool completely.
Picture Note: Detail view of belt guide (C), on tension handle (D).
· Remove two cap screws and belt shield (A).
· Loosen hardware for two sheaves (B) and three belt guides (C).
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 in the groove of each sheave, and on the inside of the guides at sheaves (B).
8. Tighten three belt guides (C).
9. Tighten sheave hardware to 54 N·m (40 lb-ft).
11. Before installing deck, make sure tension spring is installed. Rotate tension handle (D) clockwise and install spring (E) onto hole in tension arm (F).
Replacing Mower Drive Belt (42 Mulching Mower)
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Allow engine and muffler to cool completely.
· Remove one cap screw (A) and slide belt shield (B) outward and off of two slotted holes (C) on top of mower deck.
· Loosen hardware for five sheaves (D).
· Loosen hardware for belt guides (E).
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 in the groove of each sheave, there is no twist in the belt, and the belt is inside belt guides.
9. Tighten sheave hardware to 54 N·m (40 lb-ft).
10. Install belt shield, making sure shield is secured onto two slotted holes on top of mower deck. Secure with cap screw.
Replacing Mower Drive Belt Primary (48 and 54 Mowers)
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Allow engine and muffler to cool completely.
3. Lock mower deck in lowered position.
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c CAUTION: Avoid injury! Belt tension rod is spring-assisted and under tension. Keep a secure grasp on rod at all times while releasing or applying drive belt tension.
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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.
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 Mower Drive Belt (Secondary) (48 and 54 Mowers)
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Allow engine and muffler to cool completely.
· 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).
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c CAUTION: Avoid injury! Wear protective eyewear when removing belt from drive sheave. Tension spring may come loose.
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· To remove belt, rotate tension arm (D) 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 in the groove of each sheave and inside belt guide (C), and if necessary, rotate tension arm (D) slightly to place belt onto the last sheave.
8. Install and tighten belt guide.
9. Install belt shields onto slotted holes on mower deck and slide each shield towards center of deck. Secure each shield with one cap screw.
Checking for Bent Mower Blades
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c CAUTION: Avoid injury! Mower blades are sharp. Always wear gloves when handling mower blades or working near blades.
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1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Raise mower deck to highest position to access blades.
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.).
Servicing Mower Blades
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.
38 and 42 Mowers
· Loosen and remove nut (A), washer (B), and blade (C).
48 and 54 Mowers
· Loosen and remove bolt (D), washer (E), and blade (F).
5. Inspect blades; sharpen, balance or replace blades as necessary.
Installing Mower Blades
38 and 42 Mowers
IMPORTANT: Avoid damage! On 42 mulching mower, blades are marked right and left on bottom side of each blade. Make sure to install correct blade to right and left sides of deck. |
1. Align the splined center hole in the blade (C) with the splined spindle shaft (G) and put the blade onto the mower spindle shaft with cutting edge toward ground.
2. Install washer (B), with cupped side towards blade, and install nut (A) to secure blade onto splined spindle shaft
3. Block mower blade with a piece of wood to prevent spinning and tighten nut to 68 N·m (50 lb-ft).
48 and 54 Mowers
1. Make sure deflector cup (H) is seated properly between mower spindle and blade.
2. Position mower blade (F) with cutting edge toward ground onto mower spindle.
3. Install washer (E), with cupped side towards blade, and install bolt (D) 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
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c CAUTION: Avoid injury! Mower blades are dangerous!
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· Sharpen blades with grinder, hand file, or electric blade sharpener.
· 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
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c CAUTION: Avoid injury! Mower blades are sharp. Always wear gloves when handling mower blades or working near blades.
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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.