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Section 4 - ADJUSTMENTS & REPAIR
WARNING A I
Before attempting any adjustments or repairs, STOP I
the engine, remove the spark plug wire from the l
spark plug and secure wire away from plug.
4.3.8. 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 4.17.
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 318" hex lock nut.
4,4,
- BEARING
HOLDER
FIGURE 4.17
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
(Standard and Stretch Type Belts)
1. Empty the fuel tank.
2. Standard Belt: Unhook the idler spring from the
right rear wheel bracket. See Figures 4.18.
2.A. Stretch Belt: Proceed to Step 3. There is no idler
pulley on these models to disconnect. See Figure
4.18A.
RIGHT REAR WHEEL
BRACKET €,\ __ _. a,_ IDLER
_e-_SPRING
SLOT IN IDLER -"1
DECK _ ARM _ ,/t"_"'...-_,_._
/ /
/ / ED,sc
TOP VIEW OF ENGINE WITH STANDARD TYPE BELT ROUTING
FIGURE 4.18
DRIVE
/
r _
% _',-' S
TOP VIEW OF ENGINE WITH STRETCH TYPE BELT ROUTING
FIGURE 4.18A
(Continued on Next Page)
17
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