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Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.
4.3 BELT SERVICE
On self-propelled mowers, the engine belt transmits
power from engine pulley to transmission pulley.
Should this belt become worn, it could cause
slippage which would impair mower performance.
The condition of the engine belt should be checked
after every 25 hours of mower operation.
4.3.1. Engine Drive Belt Replacement
1. Follow WARNING statement found on this page.
2. Remove the retaining screws that secure the belt
cover. Remove the belt cover. See Figure 4.6.
3. Disconnect belt from transmission pulley.
4. Tilt mower up on its rear wheels. Do not tilt
mower with spark plug or carburetor down.
5. Remove the retaining bolt that secures the blade.
Remove blade. See Figures 4.7.
6. Remove the belt from around engine pulley.
7. Install the new belt from around engine pulley.
Insert belt through opening in deck.
8. Secure the blade with retaining bolt. Tighten bolt
to 30 to 40 ft. Ibs.
9. Install new belt over transmission pulley. Install
belt cover and secure with retaining bolts. Tighten
securely.
TILT MOWER UP ON ITS BACK WHEELS7
REMOVE BLADE
MOUNTING
SCREW
FIGURE 4.7
DRIVE BELT
\
\
\
DRIVE BELT
COVER
RETAINING
FIGURE 4.6
13
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