Snapper 7800842-01 Belt Service, Replacing the Bearing On the Pulley End, Hex Shaft, Type Belts

Maintenance

Replacing the Bearing On the Pulley End				Belt Service
Of the Hex Shaft
					!		WARNING			!
	!	WARNING	!
					DO NOT attempt any maintenance, adjustments or
DO NOT attempt any maintenance, adjustments or					service with engine and blade running. STOP engine
service with engine and blade running. STOP engine					and blade. Disconnect spark plug wire and secure
and blade. Disconnect spark plug wire and secure					away from spark plug. Engine and components are
away from spark plug. Engine and components are					HOT. Avoid serious burns, allow sufficient time for all
HOT. Avoid serious burns, allow sufficient time for all					components to cool.
components to cool.
				On self-propelled mowers, the engine belt (A, Figure
To replace the bearing on the pulley end of the hex				32) transmits power from the engine pulley (B) to the
shaft, proceed as follows:				drive disc (C). The drive disc powers the poly-v belt,
1.	Hold the hex shaft with an adjustable wrench held			which engages the transmission that powers the rear
2.	next to the pulley.			wheels. Should these belts become worn, they could
	Remove the 3/8” hex lock nut (B, Figure 31),			cause slippage, which would impair mower perfor-
3.	located on the outside of the right wheel bracket.			mance. The condition of the engine belt and poly-v
	Remove the holder (A), O-ring (C) and bearing			belt should be checked after every 25 hours of mower
	(D).	B		operation.
4.			Reproduction
	Install the new bearing.			Engine Drive Belt Replacement (Stretch
5.	Carefully install the new O-ring over the outside of
6.	the new bearing.			Type Belts)
	Install the bearing holder, and secure with screws.				1. Empty		he fuel ank.
7.	Install the 3/8” hex lock nut.				2. Note he belt routing (Figure 32). There is no idler
						pulley	hese models to disconnect.
								A
		D	C						C

A B

Figure 31: Replacing the hex shaft bearing Figure 32: Engine drive belt routing

26 www.snapper.com