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Maintenance(Continued)
WARNING
DO NOTattempt any maintenance, adjustments or service
with engine and blade running. STOPengineand blade.
Disconnect spark plug wire and secure awayfrom spark
plug. Engineand components are HOT.Avoid serious
burns, allow sufficient time for all components to cool.
Replacing the Bearing On the Pulley End Of the
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 (B, Figure33), located on
the outside of the right wheel bracket.
3. Remove the holder (A), O-ring (C) and bearing (D).
4. Install the new bearing.
5. Carefully install the new O-ring over the outside of the
new bearing.
6. Install the bearing holder, and secure with screws.
7. Install the 3/8" hex lock nut.
BeltService
On self-propelled mowers, the engine belt (A, Figure 34)
transmits power from the engine pulley (B) to the drive disc
(C). The drive disc powers the poly-v belt, which engages the
transmission that powers the rearwheels. 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.
Engine Drive Belt Replacement (Stretch Type
Belts)
1. Empty the fuel tank.
2. Note the belt routing (Figure 34). There is no idler
pulley on these models to disconnect.
f ,.. o "_ \//>_ "l,
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Figure 34. Engine drive belt routing
i.
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Figure 33. Replacingthe hex shaft bearing
17
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