White Outdoor Snow Boss 550 - Manual (Page 14)

14
NOTE: Loosening the six nuts that connect the frame to
the auger housing may aid in belt removal.
• Lift the auger belt from the auger pulley, and slip
belt between the support bracket and the auger
pulley. See Figure 18.
• Replace the auger drive belt by following
instructions in reverse order.
Figure 18
Drive Belt
• Follow the first four steps of the instructions for
servicing the auger belt.
• Pull idler pulley up and lift belt off engine pulley and
friction wheel disc. See Figure 17.
• Back out the stop bolt until the support bracket
rests on the auger pulley. See Figure 18.
• Slip belt between friction wheel and friction wheel
disc. Remove and replace 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. See Figure 18.
Servicing 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. See Figure 19.
Figure 19
• Remove six self-tapping screws from the frame
cover underneath the snow thrower.
• Remove the click pins which secure the wheels,
and remove the wheels from the axle.
• Using a 7/8" wrench to hold the shaft, loosen, but
do not completely remove, the hex nut and bell
washer on the left end of gear shaft.
• 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.
• Move the gear shaft to the right and slide the friction
wheel assembly from the shaft.
• Remove the six screws from the friction wheel
assembly (three from each side). Remove the
friction wheel rubber from between the friction
wheel plates. See Figure 20.
Figure 20
Friction
Wheel
Support
Bracket
Auger Pulley
Idler Spring
Support
Bracket
Spring
Auger
Housing
Drive Plate
Friction
Wheel
Stop Bolt
Support Bracket
Auger Pulley
Hex Nut &
Bell Washer
Friction Wheel Rubber
Screws
Screws
Friction Wheel Plates
Hub