Snapper P216512BV, P216012, WP216512BV important safety instructions Belt Service

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

4.4.1.Engine Drive Belt Replacement 1. Empty the fuel tank.

2. Unhook the idler spring from the right rear wheel bracket. See Figures 4.16.

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.

RIGHT REAR

WHEEL BRACKET

IDLER

SLOT INARM DECK

IDLER SPRING

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.

BALL BEARING

“O” RING

3/8”

LOCK NUT

BALL BEARING

HOLDER

FIGURE 4.15

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.

DRIVE DISC

DRIVE BELT

ENGINE DRIVE PULLEY

TOP VIEW OF ENGINE BELT ROUTING

FIGURE 4.16

IMPORTANT: DO NOT tip machine with carburetor or spark plug down. Oil from crankcase will saturate the air filter and cause the engine to be hard to start or not start at all. If contamination does occur, the air filter will have to be replaced.

3.Remove the driven disc. Refer to Section “Replacing Driven Disc RubberRing” for driven disc removal procedure.

4.Do not tilt mower with spark plug or carburetor down. Tilt mower up on its rear wheels and remove blade and blade hub. Assistance from another person may be necessary to hold mower in the tilted position.

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