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20 Section 7 — Service
11. If also replacing the drive belt, proceed to the “Drive Belt”
instruction. If not, reposition the transmission frame back
onto the auger housing. Install the drive belt on the engine
pulley, re-connect the auger cable “Z” fitting and auger
idler rod ferrule to the brake bracket. Reposition and secure
the engine pulley belt guard, and re-install the belt cover.
NOTE: Make sure to remove the piece of wood blocking the
impeller.
Check the auger drive belt adjustment. With the auger clutch
lever in the disengaged position, the top surface of the new belt
should be even with the outside diameter of the pulley.
To adjust, disconnect ferrule from brake bracket assembly.
Thread ferrule in (towards idler) to increase tension on belt, or
out to decrease belt tension.
NOTE: The brake puck must always be firmly seated in the pulley
groove when auger control is disengaged.
CAUTION: Repeat the “Testing Auger Drive Control”
from the Assembly and Set-up section before
operating the snow thrower.
Drive Belt Replacement
If not already done, remove the auger drive belt from the
front pulley of the engine double pulley. Refer to “Auger Belt
Replacement” instructions in the previous sub-section.
1. Pull the idler pulley away from the backside of the drive
belt to relieve the tension and slip the drive belt off the idler
pulley. Carefully release the idler pulley. See Figure 7-8.
2
3
1a
1b
Figure 7-8
2. Roll the drive belt off the lower drive pulley and then remove
the belt from the engine pulley.
3. Install the new belt on the pulleys in the reverse order and re-
tension with the idler pulley.
4. Reassemble by performing the previous steps in the
opposite order and manner of removal.
Changing Friction Wheel
The rubber on the friction wheel is subject to wear and should
be checked periodically. Replace the friction wheel if any signs of
wear or cracking are found.
1. Drain the gasoline from the snow thrower, or run the fuel
tank dry to prevent a hazardous situation.
2. Tip the snow thrower up and forward, so that it rests on the
housing.
3. Remove screws from the frame cover underneath the snow
thrower (refer to Figure 7-9). Remove the right wheels from
the axle.
Figure 7-9
4. Using a 3/4” wrench, hold the hex shaft and remove the
hex screw and belleville washer and bearing from left side
of the frame. Refer to Figure 7-10.
Remove Hex Screw
& Belleville Washer
Friction Wheel
Assembly
Hex Shaft
Slide Hex
Shaft Out
Right Side
Figure 7-10