Bolens 930 SWE サービスマニュアル

To adjust, disconnect ferrule from brake bracket assembly. 
Thread ferrule in (towards idler) to increase tension on belt, 
or out to decrease belt tension.

The brake puck must always be firmly seated in the 

pulley groove when auger control is disengaged.

IMPORTANT:  

Repeat the “Testing Auger Drive Control” from 

the  Assembly and Set-up section before operating the 
snow thrower.

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.  

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.

Roll the drive belt off the lower drive pulley and then 
remove the belt from the engine pulley.
Install the new belt on the pulleys in the reverse order and 
re-tension with the idler pulley.
Reassemble by performing the previous steps in the 
opposite order and manner of removal.

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 
piece of plastic under the gas cap.
Tip the snow thrower up and forward, so that it rests on 
the housing.

1.

2.

3.

4.

1.

2.

Remove screws from the frame cover underneath the 
snow thrower (refer to Figure 7-9). Remove the right 
wheel from the axle.

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.

Holding the friction wheel assembly, slide the hex shaft 
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.
Lift the friction wheel assembly out between the axle 
shaft and the drive shaft assemblies.
Remove four screws securing the friction wheel to the 
hub assembly (refer to Figure 7-11). Discard old friction 
wheel.
Reassemble the new friction wheel onto the hub 
assembly, tightening the four screws in rotation and 
with equal force. It is important to assemble the friction 
wheel symmetrically for proper functioning. Refer to 
Figure 7-11.

3.

4.

5.

6.

7.

8.

2

3

1a

1b

Friction Wheel Ass’y.

Hex Shaft

Slide Hex

Shaft Out

Right Side

Remove Hex Screw

Belleville Washer