Replacement Of Bearing On Pulley End Of Hex Shaft

Section 4 - REPAIR & ADJUSTMENTS

WARNING

Before attempting any adjustments or repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.

4.3.5. Replacing Bearing In Driven Disc

If the driven disc bearing fails, remove the driven disc assembly and replace bearing as follows:

1.Remove snap ring. See Figure 4.14.

	THRUST	SHIM
	PLATE	WASHER
		SNAP
		RING
	BEARING
	REMOVE FOUR
	MACHINE SCREWS
		DRIVEN
		DISC HUB
	DRIVEN DISC	RUBBER
	DRIVEN DISC	DISC
	PLATE	DISC
	PLATE

FIGURE 4.14

2.Slide the hub assembly out of the bearing.

3.Remove the four screws.

4.Remove bearing and replace with new bearing.

5.Reassemble components in reverse order.

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:

BALL BEARING

“O” RING

3/8”

LOCK NUT

BALL BEARING

HOLDER

FIGURE 4.15

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

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
4.15.
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.

RIGHT REAR

WHEEL BRACKET

IDLER

SLOT INARM DECK

IDLER SPRING

7. Install 3/8” hex lock nut.

DRIVE DISC

DRIVE BELT

ENGINE DRIVE PULLEY

TOP VIEW OF ENGINE BELT

FIGURE 4.16