MTD 642E - Manual (Page 18)

18
Figure 26
• Reassemble auger drive belt(s) by following
instructions in reverse order.
Drive Belt
• Follow first four steps of previous instructions.
• Pull idler pulley up, and lift belt off engine pulley and
friction wheel disc. See Figure 26.
Figure 27
• Using a wrench, loosen the nut on the stop bolt until
the support bracket rests on the auger pulley.
See Figure 28.
• Slip belt between friction wheel and friction wheel
disc. Remove and replace belt. Reassemble in
reverse order.
NOTE: The support bracket must rest on the stop bolt
after the new belt has been assembled. See Figure 28.
Figure 28
Friction Wheel Rubber
Replace the friction wheel rubber if any signs of wear or
cracking are found. Follow instructions below to replace
the rubber.
• Tip the snow thrower up and forward, so that it rests
on housing. Refer to Figure 17.
• Remove six self-tapping screws from the frame
cover underneath the snow thrower.
• Remove the klick pins which secure the wheels,
and remove the wheels from the axle.
• Using a wrench to hold the shaft, loosen, but do not
completely remove, the hex nut and bell washer on
the left end of gear shaft. See Figure 29.
Figure 29
• Lightly tap the hex nut to dislodge the ball bearing
from the right side of the frame. Remove the hex
nut and bell washer from the left end of the shaft.
• Slide the gear shaft to the right then slide the
friction wheel assembly from the shaft.
• Remove the four screws from the friction wheel
assembly. See Figure 30.
• Remove the friction wheel rubber from between the
friction wheel plate.
• Reassemble new friction wheel rubber to the
friction wheel assembly, tightening the six screws in
rotation and with equal force. See Figure 30.
Drive Belt
Drive
Idler
Engine
Pulley
Idler
Auger
Belt
Pulley
Pulley
Pulley
Pin
Friction Wheel
Frame
Auger Belt
Auger
Pulley
Support
Bracket
Gear
Shaft
Assembly
Support Bracket
Spring
Idler
Spring
Auger
Housing
Friction
Stop
Bolt
Support Bracket
Drive Belt
Friction Wheel
Wheel Disc
Hex Nut &
Bell Washer