Adjusting The Auger/Impeller Drive Belt; Replacing The Auger/Impeller Drive Belt; Preparing The Machine For Storage - Toro 722 Power Throw Operator's Manual

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16. Install the auger/impeller drive belt around the large
auger/impeller pulley and engine pulley, ensuring
that the belt is on the inside of the idler pulley and
the belt guide (Figure 38).
17. Adjust the belt guide so that there is 1/8 inch (3 mm)
of clearance between the auger/impeller drive belt
and the guide, and secure the belt guide when the
auger/impeller drive belt is tight.
18. Check the auger/impeller drive linkage and adjust it
if necessary. Refer to steps 4 through 7 of Installing
the Auger/Impeller Drive Control Linkage in Setup.
19. Install the belt cover.
Adjusting the Auger/Impeller
Drive Belt
Service Interval: After the first hour
Before each use or daily
Operating the machine 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, then
check and 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. Check and adjust the belt as instructed in Installing
the Auger/Impeller Drive Control Linkage in Setup.
2. Connect the wire to the spark plug.
3. Check the belt tension by operating the auger.
4. If the belt still slips, replace it. Refer to Replacing the
Auger/Impeller Drive Belt.
Important: Do not operate the machine 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. Remove the 2 flange-head bolts that hold the belt
cover in place and set the cover aside (Figure 37).
2. Loosen the belt guide (Figure 38).
3. Remove the auger/impeller drive belt from the
engine pulley and the large auger/impeller pulley
(Figure 38).
4. Install a new belt around the large auger/impeller
pulley (Figure 38).
5. Loop the belt over the engine pulley, ensuring that
the belt is on the inside of the idler pulley and the
belt guide (Figure 38).
6. Adjust the belt guide so that there is 1/8 inch (3 mm)
of clearance between the auger/impeller drive belt
and the guide, and secure the belt guide.
7. Check and adjust the auger/impeller drive belt as
instructed in Installing the Auger/Impeller Drive
Control Linkage in Setup.
8. Install the belt cover.
Important: Do not operate the machine if
the auger and the impeller rotate when you
disengage the auger/impeller drive control lever.
Storage
WARNING
• Gasoline vapors can explode.
• Do not store gasoline more than 30 days.
• Do not store the machine in an enclosure near
an open flame.
• Allow the engine to cool before storing it.
Preparing the Machine for
Storage
1. On the last refueling of the year, add fuel stabilizer
to fresh fuel as directed by the engine manufacturer.
2. Run the engine for 10 minutes to distribute the
conditioned fuel through the fuel system.
24

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