Adjusting The Auger/Impeller Drive Belt; Replacing The Auger/Impeller Drive Belt - Toro 38078 Operator's Manual

15. Install the engine pulley sheave, ensuring that the
indexing rib in the engine pulley sheave aligns with the
indexing notch in the engine pulley (Fig. 27).
16. Install the washer, lock washer, and crankshaft bolt that
secures the engine pulley sheave (Fig. 27).
Note: Do not to pinch the auger/impeller drive belt
(Fig. 27).
17. Ensure that the brake pad is properly installed on the
brake arm. Position the angled cutoff on the brake pad
as shown in Figure 28.
Figure 28
View from left side of unit
1. Brake pad
2. Angled cutoff
18. Install the 2 screws that secure the auger brake arm
assembly. Ensure that the tabs fit into the holes in the
left side of the snowthrower (Fig. 29).
1
Figure 29
1. Tabs in holes
19. Have someone squeeze the auger/impeller drive control
lever (Fig. 14) against the handgrip, and install the belt
guide using 2 bolts, 2 washers, and 2 lock washers.
20. Check and adjust the belt guide, and ensure that it does
not contact any part of the engine pulley.
21. Check and adjust the auger/impeller drive control
linkage. Refer to steps 5 through 7 of Installing the
Auger/Impeller Drive Control Linkage on page 10.
22. Install the idler pulley spring.
23. Install the belt cover with the 3 bolts.
24. Connect the wire to the spark plug.
m-2681
3. Auger/impeller drive belt
4. Traction drive belt
m-2678
22
Important
Do not operate the snowthrower if the auger
and the impeller rotate when you disengage the
auger/impeller drive control lever.
Adjusting the Auger/Impeller
Drive Belt
Operating the snowthrower with an auger/impeller drive
belt that slips decreases the snowthrowing performance and
damages the belt. Check the auger/impeller drive belt for
the proper tension after the first operating hour, after every
5 operating hours thereafter. Adjust the belt when
necessary.
Danger
Improperly adjusting the auger/impeller may
cause it to turn when disengaged. A rotating auger
or impeller can cut off or injure fingers, hands, or
feet.
Keep your face, hands, feet, and any other part
of your body or clothing away from concealed,
moving, or rotating parts.
Ensure that the impeller brake arm clearance is
maintained.
Do not adjust the auger/impeller drive belt too
tight because it may cause the auger/impeller to
turn when the control lever is in the Disengaged
position. If this occurs, decrease the belt tension.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug and ensure that
the wire does not contact the plug (Fig. 18).
3. Check the adjustment according to steps 5 through 7 of
Installing the Auger/Impeller Drive Control Linkage on
page 10. Make any needed adjustments.
4. Connect the wire to the spark plug.
5. Check the belt tension by operating the auger.
6. If the belt still slips, replace it. Refer to Replacing the
Auger/Impeller Drive Belt on page 22.
Important
Do not operate the snowthrower if the auger
and the impeller rotate when you disengage the
auger/impeller drive control lever.
Replacing the Auger/Impeller
Drive Belt
If the auger/impeller drive belt becomes worn, oil-soaked,
or otherwise damaged, replace the belt.
1. Stop the engine and wait for all moving parts to stop.