Snapper RT5 Series Service Manual page 25

FIG. 4. 32 - SHIMS ON 5HP MODELS
FIG. 4. 33 ■ DRIVE DISC MOUNTING BOLT
FIG. 4. 34 ■ RETAINING HARDWARE STACK-UP
FIG. 4. 35 ■ PRY DRIVE DISC ASSEMBLY OFF
FIG. 4. 31 ■ ENGINE TO FRAME
DRIVE DISC REPLACEMENT
Engine power is transmitted by the aluminum drive
disc which is attached to the engine crankshaft to
the rubber driven disc which in turn transmits the
power to the primary chain case and to the transmis¬
sion assembly. Replace the disc if worn, grooved or
warped as follows.
STEP 1: Remove the engine from the tractor frame
(Figure 4.31). Note the engine mount shims used on
5HP models, (figure 4.32)
STEP 2: Use an alien head wrench to remove the
drive disc mounting bolt (figure 4.33) and lockwasher
(figure 4.34). Different size bolts are used and an in¬
ternal tooth lockwasher is used on 5 HP models
while the 8 HP uses the split lockwashers as shown.
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