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Service Mower - 24
SERVICE MOWER
Replacing Mower Deck Drive Belt
Removing Mower Deck Drive Belt:
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Lower mower deck to the lowest cutting height position.
3. Remove mower deck shield.
4. Remove both mower deck belt shields.
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5. Release mower deck drive belt tension by turning adjuster nut (A)
counterclockwise until two threads remain protruding through adjuster nut
(A).
6. Disconnect idler spring (B) from idler arm (C) using a spring puller tool.
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7. Loosen idler pulley retaining nut (D) just enough to allow idler pulley (E)
to tilt, allowing belt (F) to clear fixed belt guide (G).
8. Remove mower deck drive belt (F).
Installing Mower Deck Drive Belt:
NOTE: If necessary, see drive belt installation label on mower deck.
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1. Install replacement drive belt (A) as shown on mower deck drive belt
label. Make sure drive belt is installed properly on PTO clutch sheave,
spindle sheaves and idler pulleys.
2. Tighten idler pulley retaining bolt to 34 N•m (25 lb-ft) ensuring idler
pulley belt is captured between idler pulley flange and belt guide.
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3. Connect idler tension spring and adjust tension. The length (B) of the
tension spring should measure 21.6 to 22.6 cm (8-1/2 in. to 8-7/8 in.) from
inside of hook to inside of hook.
4. Install both mower deck belt shields.
5. Install mower deck shield.
6. Adjust mower deck to desired cutting height.
Checking for Bent Mower Blades
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1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Raise mower to highest position to access blades.
CAUTION: Avoid injury! Tensioning spring is under high
tension. Wear gloves and safety glasses, and use a spring
puller to install and remove spring.
CAUTION: Avoid injury! Mower blades are sharp. Always
wear gloves when handling mower blades or working near
blades.
Replace blades if defective. Never straighten or weld them.