Snapper WMR216517B, WMRP216517B important safety instructions Adjustments & Repair

Section 4 - ADJUSTMENTS & REPAIR

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 at the end of the hex shaft on the outside of the right wheel bracket. See Figure 4.14.

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.

BALL BEARING

“O” RING

3/8”

LOCK

NUT

BALL

BEARING

HOLDER

4.4BELT 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 (Stretch Type Belts)

1.Empty the fuel tank.

2.Note the belt routing in Figure 4.15. There is no idler pulley on these models to disconnect. See Figure

DRIVE BELT

ENGINE DRIVE

PULLEY

DRIVE DISC

TOP VIEW OF STRETCH TYPE BELT ROUTING

FIGURE 4.15

FIGURE 4.14

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