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

Adjusting the Auger/Impeller
Drive Belt
An auger/impeller that belt slips results in decreased
snowthrowing performance and requires either an
adjustment or a new belt.
DANGER
POTENTIAL HAZARD
Improper adjustment may cause injury if the
auger/impeller turns when disengaged.
WHAT CAN HAPPEN
The rotating impeller or auger can cut off or
injure fingers or hands.
HOW TO AVOID THE HAZARD
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 belt tension.
IMPORTANT:
After 5–10 hours of snowthrower
operation with a new auger/impeller drive belt, check
the belt to ensure proper tension is being maintained.
1. Pull the wire the off of the spark plug and ensure that
the wire does not contact the plug (Fig. 19).
2. Check the adjustment per steps 5 through 7 of
Installing the Auger/Impeller Drive Control Linkage,
page 9. Make adjustments if required.
3. Install the wire on the spark plug.
4. Check the tension of the belt by operating the auger.
5. If belt still slips, replace the belt. Refer to Replacing
the Auger/Impeller Drive Belt, page 19.
6. If the auger and impeller are rotating when the
engine is running and the auger/impeller control
lever is not engaged, immediately stop the engine
and bring the snowthrower to an Authorized Service
Dealer for repair.
IMPORTANT:
Do not operate the snowthrower if the
auger and impeller rotate when the auger/impeller
control lever is not engaged.
Replacing the Auger/Impeller
Drive Belt
When the auger/impeller drive belt becomes worn,
oil–soaked, or otherwise damaged, replace the belt. You
can obtain a new belt from your Authorized Service
Dealer.
IMPORTANT:
After five to ten hours of operation
with a new auger/impeller drive belt, check the belt to
ensure the proper belt tension.
1. Pull the wire off of the spark plug and ensure that the
wire does not contact the plug (Fig. 19).
2. Remove the three screws that secure the belt cover in
place and set the cover aside (Fig. 22).
1
1. Upper belt cover
3. Loosen the auger brake arm assembly by loosening the
rear screw and removing the front screw that fastens
the auger brake arm assembly to the frame (Fig. 23).
4. Remove the idler pulley spring (Fig. 23), allowing the
brake arm assembly to hang free, but out of the way.
1
2
1. Rear screw
2. Front screw
5. Remove the two screws, washers, and lock washers
that secure the belt guide (Fig. 24).
19
2
m-4040
Figure 22
2. Screws
3
m-2678
Figure 23
3. Idler pulley spring