Not for
Reproduction
25
Maintenance Procedures
Checking Engine Cooling Intake and Fan
IMPORTANT:
Avoid damage! An obstructed air in-
take screen can cause engine damage due to over-
heating.
CAUTION
Avoid injury! Compressed air can cause
debris to fl y a long distance.
Clear work area of bystanders.
Wear eye protection when using compressed air for
cleaning purposes.
Reduce compressed air pressure to 210 kPa (30 psi).
Keep air intake screen and other external surfaces of
the engine, including cooling
fi
ns, clean at all times to
allow adequate cooling.
Clean air intake screens and engine cooling
fi
ns of
debris with compressed air to ensure proper cooling.
Refer to the engine manufacturer’s owner’s manual
provided with your machine for the complete proce-
dure.
Checking Spark Plugs
CAUTION
Avoid injury! Touching hot surfaces can
burn skin. The engine, components, and
fl uids will be hot if the engine has been run-
ning. Allow the engine to cool before ser-
vicing or working near the engine and com-
ponents.
Check spark plugs at the intervals recommended in
the
Service Intervals
section. Refer to the engine
manufacturer’s owner’s manual provided with your
machine for the complete procedure.
Checking Carburetor Adjustment
The carburetor is designed to deliver the correct fuel-
to-air mixture to the engine under all operating condi-
tions. To comply with current emissions regulations,
the fuel mixture settings are made at the factory and
are not adjustable.
NOTE:
To ensure proper engine operation at altitudes
above 5000 ft (1525M), it may be necessary to have
an authorized engine service center install a special
high-altitude jet kit in the carburetor.
Refer to the engine manufacturer’s owner’s manual
provided with your machine for more information.
Service Hydraulics
Hydraulic Oil
Use only Mobil-1 synthetic 15W-50 oil or equivalent.
Checking Hydraulic Oil Level
Full Cold Line
Hydraulic Oil Tank and Fill
CAUTION
Avoid injury! Escaping fl uid under pres-
sure can penetrate the skin causing seri-
ous injury. Avoid the hazard by relieving
pressure before disconnecting hydraulic
or other lines. Tighten all connections be-
fore applying pressure.
