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Drive System
Maintenance
Checking the Tire Pressure
Service Interval: Before each use or daily
Maintain the air pressure in the tires as specified. Check
the tires when they are cold to get the most accurate
reading.
Pressure: 46 psi (317 kPa)
Figure 22
1. Valve stem
Checking the Tension of
Aerator Drive Chains
Service Interval: After the first 10 hours
Every 50 hours
1. Raise the tines, stop the machine, stop the engine,
and disconnect the spark plug wire.
2. Raise the front of the machine to gain access to the
chains and block it in place.
CAUTION
If you do not securely block the up the front
of the machine, the machine could fall on you
during service, injuring you.
Ensure that you place a jackstand or block under
the front of the machine to hold it up securely.
Important: Do not raise the rear of the machine.
Raising the rear of the machine will casue the
engine to flood and the air cleaner to be fouled
with gasoline.
3. Pull down on each chain near the opening in the
frame with 10 pounds (4.5 kg) of force (Figure 23).
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If a chain contacts the bottom of the opening in the
frame, tighten it as follows:
2
Figure 23
1. Flex in the chain
A. Loosen the nut securing the idler sprocket of the
chain you are tensioning (Figure 24).
Figure 24
1. Idler sprocket
B. Pull down on the idler sprocket until the slack is
taken out of the chain and there is more than 1/4
inch (6 mm) of space between the chain and the
bottom of the opening in the frame when you
apply 10 pounds (4.5 kg) of force to the chain.
C. Tighten the idler sprocket nut and torque it to 30
ft-lb (40.6 N-m).
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2. Bottom of the frame
opening
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