Troy-Bilt 31AH9777766 Two Stage Snow Thrower — Polar Blast 4510

Operator’s Manual - Page 26

For 31AH9777766.

PDF File Manual, 36 pages, Read Online | Download pdf file

31AH9777766 photo
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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.
Use a wrench to rotate the idler pulley away from the 1.
backside of the drive belt to relieve the tension and slip
the drive belt off the idler pulley. Carefully release the
idler pulley. See Fig. 8-8.
Roll the drive belt off the lower drive pulley and then 2.
remove the belt from the engine pulley.
Install th e new belt on th e engin e pul le y, then seat ar ou nd th e 3.
lower drive pulley and re-tension with the idler pulley.
Reassemble by performing the previous steps in the 4.
opposite order and manner of removal.
Changing Friction Wheel
The rubber on the friction wheel is subject to wear and
should be checked after the first 25 hours of operation,
and periodically thereafter. Replace the friction wheel if
any signs of wear or cracking are found.
Drain the gasoline from the snow thrower, or place a 1.
piece of plastic under the gas cap.
Tip the snow thrower up and forward, so that it rests on 2.
the housing.
Remove screws from the frame cover underneath the 3.
snow thrower (refer to Fig. 8-9). Remove the right wheel
from the axle.
Using a 3/4” wrench, hold the hex shaft and remove the 4.
hex screw and belleville washer and bearing from left
side of the frame. Refer to Fig. 8-10.
Holding the friction wheel assembly, slide the hex shaft 5.
out of the right side of the frame. The spacer on the left
side of the hex shaft will fall and the sprocket should
remain hanging lose in the chain.
Figure 8-8
2
3
1a
1b
Figure 8-9
Figure 8-10
Friction Wheel Assembly
Hex Shaft
Remove Hex Screw &
Belleville Washer
Slide Hex
Shaft Out
Right Side
26 se c t i O n 8— se r v i c e
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