11.(Figure 15) To check the adjustment, depress the drive lever and check the length “A” of the drive spring (7). In correct adjustment, the length “A” of the drive spring (7) is as follows:
minimum 3 inches (76 mm) maximum 3-3/8 inches (85 mm).
12.(Figure 23) Install the bottom panel (2).
13.Tighten the bolts (3) on each side of the bottom panel (2).
How To Adjust The Belts
The belts will stretch during normal use. If you need to adjust the belts due to wear or stretch, proceed as follows.
How To Adjust The Auger Drive Belt
If the snow thrower will not discharge snow, check the adjustment of the auger drive cable. See “How To Check And Adjust The Cables” in the Maintenance section. If the adjustment is correct, then check the condition of the auger drive belt. If the auger drive belt is damaged, replace the auger drive belt. See “How To Replace The Belts” in the Maintenance section. If the auger drive belt is loose, adjust as follows.
1.(Figure 1) Pull out the safety key (8).
2.(Figure 18) Remove screw (2) from belt cover (1). Remove the belt cover (1).
3.(Figure 19) Loosen the nut (2) on the idler pulley (3) Move the idler pulley (3) 1/8 inch (3 mm) toward the auger drive belt (4).
4.Tighten the nut (2).
5.(Figure 22) Depress the auger drive lever. Check the tension on the auger drive belt
(4). In correct adjustment, the auger drive belt (4) will deflect 1/2 inch (12.5 mm) (5) with moderate pressure. If the adjustment is not correct, repeat the adjustment.
6.(Figure 18) Install the belt cover (1). Tighten screw (2).
7.Check the adjustment of the auger drive cable. See “How To Check And Adjust The Cables” in the Maintenance section.
Traction Drive Belt
The traction drive belt has constant spring pressure and does not require an adjustment. If the traction drive belt is slipping, replace the belt. See “How To Replace The Belts” in the Maintenance section.
How To Replace The Belts
The drive belts are of special construction and must be replaced with original factory replacement belts available from your nearest authorized service center.
Some steps require the assistance of a second person.
How To Remove the Auger Drive Belt
If the auger drive belt is damaged, the snow thrower will not discharge snow. Replace the damaged belt as follows.
1.(Figure 1) Pull out the safety key (8).
2.(Figure 23) Loosen the bolts (3) on each side of the bottom panel (2).
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3.Remove the bottom panel (2).
4.(Figure 18) Remove screw (2) from belt cover (1). Remove the belt cover (1).
5.(Figure 19) Loosen the belt guide (9). Pull the belt guide (9) away from the auger drive pulley (10).
6.Pull the idler pulley (3) away from the auger drive belt (4) and slip the auger drive belt
(4) off of the idler pulley (3).
7.Remove the auger drive belt (4) from the engine pulley (11). To remove the auger drive belt (4), the engine pulley (11) may have to be partially rotated.
8.(Figure 20) Remove the top four bolts (21) that hold together the auger housing (22) and the motor box (23). Loosen the bottom two bolts (24). The auger housing (22) and the motor box (23) can now be split apart for removal of the belt.
9.(Figure 19) Remove the old auger drive belt (4) from the auger drive pulley (10). Replace the auger drive belt (4) with an original factory replacement belt available from an authorized service center.
10.Install the new auger drive belt (4) onto the auger drive pulley (10).
11.Assemble the auger housing (22) to the motor box (23) with the four bolts (21) that were removed in step 8. Tighten the bottom two bolts (24).
12.Install the auger drive belt (4) onto the engine pulley (11).
13.Slip the auger drive belt (4) under the idler pulley (3).
14.Adjust the auger drive belt (4). See “How To Adjust The Auger Drive Belt” in the Maintenance section.
15.Adjust the belt guide (9). See “How To Adjust The Belt Guide” in the Maintenance section.
16.(Figure 18) Install the belt cover (1). Tighten screw (2).
17.Check the adjustment of the cables. See “How To Check And Adjust The Cables” in the Maintenance section.
How To Remove the Traction Drive Belt
If the snow thrower will not move forward, check the traction drive belt for wear or damage. If the traction drive belt is worn or damaged, replace the belt as follows.
1.(Figure 1) Pull out the safety key (8).
2.Remove the auger drive belt. See “How To Remove The Auger Drive Belt” in the Maintenance section.
3.(Figure 19) Remove the e−ring (17) from one end of the swing plate axle rod (18). Remove the swing plate axle rod (18) to allow the the swing plate to pivot forward.
4.Remove the traction drive spring (16).
5.Remove the old traction drive belt (13) from the traction drive pulley (14) and from the engine pulley (15). Replace the traction drive belt (13) with an original factory replacement belt available from an authorized service center.
6.Install the new traction drive belt (13) onto the traction drive pulley (14) and onto engine pulley (15).
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7.Make sure the traction drive idler pulley
(12)is properly aligned with the traction drive belt (13).
8.Attach the traction drive spring (16).
9.Install the swing plate axle rod (18) and secure with the e−ring (17) removed earlier.
10.(Figure 31) The bottom of the swing plate
(20)must be positioned between the alignment tabs (19). Make sure the swing plate (20) is properly secured.
NOTE: If the drive will not engage after the traction drive belt has been replaced, then check to make sure that the swing plate is positioned between the alignment tabs (19).
11.(Figure 19) Install and adjust the auger drive belt (4). See “How To Remove The Auger Drive Belt” in the Maintenance section.
12.Adjust the belt guide (9). See “How To Adjust The Belt Guide” in the Maintenance section.
13.(Figure 23) Install the bottom panel (2).
14.Tighten the bolts (3) on each side of the bottom panel (2).
15.(Figure 18) Install the belt cover (1). Tighten screw (2).
16.Check the adjustment of the cables. See “How To Check And Adjust The Cables” in the Maintenance section.
How To Adjust The Belt Guide
1.(Figure 1) Pull out the safety key (8).
2.(Figure 18) Remove screw (2). Remove the belt cover (1).
3.(Figure 1) Engage the auger drive lever (5).
4.(Figure 24) Measure the distance between the belt guide (2) and auger drive belt (3). The correct distance (4) is 1/8 inch (3 mm).
5.If an adjustment is necessary, loosen the mounting bolt for the belt guide (2). Move the belt guide (2) to the correct position
(4). Tighten the mounting bolt for the belt guide (2).
6.(Figure 18) Install the belt cover (1). Tighten screw (2).
How To Adjust Or Replace The Friction Wheel
How To Check The Friction Wheel
If the snow thrower will not move forward, check the traction drive belt, the traction drive cable or the friction wheel. If the friction wheel is worn or damaged, it must be replaced. See “How To Replace the Friction Wheel” in this section. If the friction wheel is not worn or damaged, check as follows.
1.(Figure 1) Remove the gas from the gas tank. Stand the snow thrower up on the front end of the auger housing (4).
WARNING: Drain the gasoline outdoors, away from fire or flame.
2.Pull out the safety key (8).
3.(Figure 23) Loosen the bolts (3) on each side of the bottom panel (2).
4.Remove the bottom panel (2).
5.(Figure 1) Position the shift speed lever (6) in the lowest forward speed.
