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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.
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 4.13.
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.
FIGURE 4.13
4.4. BELT SERVICE
On self-propelled 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.
4.4.1. Engine Drive Belt Replacement
1. Empty the fuel tank.
2. Note the belt routing in Figure 4.14. There is no
idler pulley on these models to disconnect.
TOP VIEW OF STRETCH TYPE BELT ROUTING
FIGURE 4.14
BALL BEARING
“O” RING
3/8”
BALL BEARING
HOLDER
DRIVE DISC
DRIVE BELT
ENGINE DRIVE
PULLEY
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