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Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any maintenance, adjustments or
servicewith 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 sufficienttime for
allcomponents to cool.
4.4 BELT SERVICE
On these mowers, the engine belt transmits power
from engine to drive disc. The drive disc powers the
poly-v belt, which engages the transmission that
powers the rear wheels. Should these belts become
worn, they could cause slippage, which would impair
mower performance. The condition of the engine belt
and poly-v belt should be checked after every 25
hours of mower operation.
4.3.6. Replacement Of Bearing On Pulley End Of
Hex Shaft
To replace the bearing on the pulley end of the hex
shaft, proceed as follows:
1. Hold the hex shaft with an adjustable wrench
held next to the pulley.
2. Remove the 3/8" hex lock nut which is located
on the outside of the right wheel bracket. See
Figure 4.15.
3. Remove holder, O-ring and bearing.
4. Install new bearing.
5. Carefully install new O-ring over the outside of the
new bearing.
6. Install bearing holder and secure with screws.
7. Install 3/8" hex lock nut.
7/-"7, BALL BEARING
3/8"
LOCK NUT
3ALL BEARING
HOLDER
4.4.1. Engine Drive Belt Replacement
(Stretch Type Belts)
1. Empty the fuel tank.
2. Note the belt routing in Figure 4.16. There is no
idler pulley on these models to disconnect. See
Figure 4.16.
DRIVE BELT
/
t I
II
% CC
TOP VIEW OF STRETCH TYPE BELT ROUTING
FIGURE 4.16
(Continued On Next Page)
FIGURE 4.15
19
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