Snapper 20 manual Hex Shaft, Belts, Replacing the Bearing On the Pulley End

Maintenance

! WARNING ! Belt Service

DO NOT attempt any maintenance, adjustments or service			On self-propelled mowers, the engine belt (A, Figure 33)
			transmits power from the engine pulley (B) to the drive disc
with engine and blade running. STOP engine and blade.
			(C). The drive disc powers the poly-v belt, which engages the
Disconnect spark plug wire and secure away from spark
			transmission that powers the rear wheels. Should these belts
plug. Engine and components are HOT. Avoid serious
			become worn, they could cause slippage, which would
burns, allow sufficient time for all components to cool.
			impair mower performance. The condition of the engine belt
Replacing the Bearing On the Pulley End Of the			and poly-v belt should be checked after every 25 hours of
			mower operation.
Hex Shaft			Engine Drive Belt Replacement (Stretch Type
To replace the bearing on the pulley end of the hex shaft,
proceed as follows:			Belts)
1. Hold the hex shaft with an adjustable wrench held next			1. Empty the fuel tank.
to the pulley.			2. Note the belt routing (Figure 33). There is no idler
2. Remove the 3/8” hex lock nut (B, Figure 32), located on			pulley on these models to disconnect.
the outside of the right wheel bracket.
3. Remove the holder (A), O-ring (C) and bearing (D).
4. Install the new bearing.				A
5. Carefully install the new O-ring over the outside of the
		for
new bearing.
6. Install the bearing holder, and secure with screws.
7. Install the 3/8” hex lock nut.
	Not				C
			B
D			Figure 33: Engine drive belt routing
	C
B	Reproduction
A
Figure 32: Replacing the hex shaft bearing

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