
Service Mower
Mower Deck Identification
Mower decks in the following instructions are identified by a code designation. The codes are as follows:
Code
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Description
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42C
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42 Inch
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48TD
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48 Inch Top Discharge
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Removing and Installing Mower Deck Foot Plate
c CAUTION: Avoid injury! Always operate the mower with the foot plate installed. Operating with the foot plate removed can cause serious injury.
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Removing Foot Plate
1. Park machine safely. (See Parking Safely in the SAFETY section.)
MX51461
2. Remove bolt (A).
3. Rotate foot plate up using finger pull (B).
4. Remove foot plate.
Installing Foot Plate
1. Place tabs (C) of foot plate into slots in frame.
2. Lower foot plate.
3. Install bolt (A).
Removing Mower Deck (42C)
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.
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3. Raise mower deck to the transport lock position.
MX51443
4. Remove lock pin, push handle to its lowest position (A) and install pin (B) just above lever to lock deck in lowered position.
5. Remove bolt (C) to remove foot plate.
c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.
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6. Disconnect mower drive belt:
MX51685
• Remove two bolts (D) and remove right hand spindle shield (E).
• Install 3/8-inch ratchet onto square hole (F) in tension arm and rotate counterclockwise to release tension on belt, while removing mower belt from right spindle sheave (G).
• Remove belt from engine sheave.
MX51442
7. Remove locking clip (H) and, remove stud end (I) from front draft bracket (J).
MX51441
8. Remove spring clip (K) and pin from each side of rear mower bracket.
9. Raise draft arms to transport lock position:
a. Pull and raise mower lift lever fully upward.
b. Install pin just below lift lever to lock into raised position.
10. Rotate front caster wheels to maximize clearance.
11. Slide mower out from under the machine.
• Do not operate the machine without the mower deck: Machine may become unstable without the mower deck attached. Move machine only by hand. (See Moving Machine by Hand in OPERATING section.)
Removing Mower Deck (48TD)
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.
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3. Raise mower deck to the transport lock position.
MX51443
4. Remove lock pin, push handle (A) to its lowest position and install pin (B) just above lever to lock deck in lowered position.
5. Remove foot plate.
c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.
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6. Disconnect mower drive belt:
MX51440
• Install 3/8-inch ratchet onto square hole (C) in tension arm and rotate clockwise to release tension on belt, while removing mower belt from center spindle sheave (D).
• Remove belt from engine sheave.
MX51440
7. Remove locking clip (E), and remove stud end (F) from front draft bracket (G)..
MX51441
8. Remove spring clip (H) and pin from each side of rear mower bracket.
9. Raise draft arms to transport position:
a. Pull and raise mower lift lever fully upward.
b. Install pin just below lift lever to lock into raised position.
10. Rotate front caster wheels to maximize clearance.
11. Slide mower out from under the machine.
• Do not operate the machine without the mower deck: Machine may become unstable without the mower deck attached. Move machine only by hand. (See Moving Machine by Hand in OPERATING section.)
Installing Mower Deck (42C)
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.
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3. Raise mower lift lever fully upward into transport lock position.
4. Remove two bolts to remove mower right hand spindle belt shield. Take belt out of V-sheave to allow more belt slack for installation of belt onto clutch.
5. Slide mower deck under machine.
MX51443
6. Remove lock pin, push handle (A) to its lowest position and install pin (B) just above lever to lock deck in lowered position.
7. Remove bolt (C) to remove foot plate.
MX51441
8. Install pin and spring clip (D) onto each side of rear mower bracket.
MX51442
9. Install stud (E) onto front draft bracket (F). Secure with locking clip (G).
c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.
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MX51685
10. Connect mower drive belt:
• Install belt onto engine sheave.
IMPORTANT: Avoid damage! Left and right spindle sheaves are hidden by belt shields. Failure to seat belt properly on sheaves may result in belt damage.
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• Install 3/8 in. ratchet onto square hole (H) in tension arm and rotate counterclockwise to release tension on belt, while installing mower belt onto right spindle sheave (I). Make sure belt is properly seated on all sheaves.
11. Install right hand spindle belt shield.
12. Install foot plate.
Installing Mower Deck (48TD)
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.
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3. Raise mower lift lever fully upward into transport lock position.
4. Slide mower deck under machine.
MX51438
5. Lower mower lift lever, and install pin and spring clip (A) onto each side of rear mower bracket.
MX51439
6. Install front draft rod (B) onto mower deck bracket (C). Secure stud end (D) with locking clip (E).
c CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.
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MX51440
7. Connect mower drive belt:
• Install belt onto engine sheave.
NOTE: Left and right spindle sheaves are hidden by belt covers. Failure to seat belt properly on sheaves may result in belt damage.
• Install 3/8-inch ratchet onto square hole (G) in tension arm and rotate clockwise to release tension on belt, while installing mower belt onto center spindle sheave (H). Make sure belt is properly seated on all sheaves.
8. Install foot plate.
Replacing Mower Drive Belt (42 Inch Mower)
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:
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.
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MX51686
• Remove four bolts (A) and left and right belt shields (B).
MX37893
• Loosen bolt (C) on belt guide.
• Loosen hardware on two sheaves (D), and remove belt from all 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.
8. Install and tighten bolt (C) on belt guide.
MX38099
Picture Note: Shown without sheave for clarity only.
9. Make sure belt guide (E) is indexed properly into hole (F) on tension arm (G).
10. Tighten sheave hardware to 47 N•m (35 lb-ft).
11. Make sure belt is properly seated on all sheaves, and install right and left belt shields.
12. Install mower deck.
Replacing Mower Drive Belt (Z255 48 Inch Mower)
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:
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.
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MX39748
• Remove seven bolts (A) and left and right belt shields (B).
MX39749
• Loosen nut (C) and bolt (D) on sheaves, and remove belt from all 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.
MX39750
Picture Note: Shown without sheave for clarity only.
8. Make sure belt guide (E) is indexed properly into hole (F) on tension arm (G).
9. Tighten sheave nut (C) and bolt (D) to 47 N•m (35 lb-ft).
NOTE: Failure to seat belt properly on sheaves may result in belt damage.
10. Make sure belt is properly seated on all sheaves, and install belt shields.
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.
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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.
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.
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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):
MX37886
Picture Note: 42 inch deck shown.
• Loosen and remove nut (A), washer (B), and blade (C).
5. Inspect blades; sharpen, balance or replace blades as necessary.
Installing Mower Blades
1. Align the splined center hole in the blade with the splined spindle shaft (K) 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 88 N•m (65 lb-ft).
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