MTD 31AH7S3G701 Snow Blower User Manual


 
14
NOTE: Loosening the six nuts that connect the frame to
the auger housing may aid in belt removal.
Figure 15
Lift the auger belt from the auger pulley, and slip
belt between the support bracket and the auger
pulley. Repeat this step for the front auger belt.
Replace the auger drive belts by following
instructions in reverse order.
NOTE: If you placed plastic film under the gas cap, be
certain to remove it before operating the snow thrower.
Figure 16
Drive Belt
Follow the first four steps of the instructions for
servicing the auger belts.
Pull the idler pulley up and lift the belt off the engine
pulley and friction wheel disc. See Figure 15.
Back out the stop bolt until the support bracket
rests on the auger pulley. See Figure 17.
Slip the belt between the friction wheel and drive
disc. Remove and replace the belt. Reassemble
following the instructions in reverse order.
NOTE: The support bracket must rest on the stop bolt
after the new belt has been assembled.
Figure 17
Replacing Friction Wheel Rubber
The rubber on the friction wheel is subject to wear and
should be checked after 25 hours of operation, and
periodically thereafter. Replace the friction wheel
rubber if any signs of wear or cracking are found.
Drain the gasoline from the snow thrower.
Tip the snow thrower up and forward, so that it rests
on the housing. Refer to Figure 8.
Remove six self-tapping screws from the frame
cover underneath the snow thrower.
Using a 7/8" wrench to hold the shaft, loosen, but
do not completely remove, the hex bolt and bell
washer on the left end of gear shaft. See Figure 18.
Lightly tap the hex nut to dislodge the ball bearing
from the right side of frame before removing the hex
nut and bell washer from left end of shaft.
Figure 18
Auger
Pulley
Drive
Pulley
Drive
Belt
Idler
Pulley
Idler
Pulley
Auger
Belts
Frame
Frame
Support
Bracket
Spring
Auger
Housing
Idler
Spring
Front
Auger Belt
Rear
Auger
Belt
Auger
Pulley
Support
Bracket
Drive Plate
Friction
Wheel
Stop Bolt
Support Bracket
Auger Pulley
Track
Hex Bolt &
Bell Washer