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SERVICE TRANSMISSION
SERVICE TRANSMISSION- 22
• Do not wash paper element.
• Do not attempt to clean paper element by tapping
against another object.
• Do not use pressurized air to clean element.
• Replace element only if it is very dirty, damaged or the
seal is cracked.
NOTE: It may be necessary to check the air filter more
frequently if operating machine in dusty conditions.
Check and clean air filter elements at the intervals recom
-
mended in the Service Intervals section. See the engine
manufacturer’s owner’s manual provided with your machine
for the complete procedure.
Checking Spark Plug
CAUTION: Avoid injury! Touching hot surfaces can
burn skin. The engine, components, and fluids will
be hot if the engine has been running. Allow the
engine to cool before servicing or working near the
engine and components.
Check spark plugs at the intervals recommended in the
Service Intervals section. See the engine manufacturer’s
owner’s manual provided with your machine for the com-
plete procedure.
Cleaning Engine Oil Cooler - Kohler Engines
Keep engine oil cooler fins clear of debris to ensure proper
cooling. See the engine manufacturer’s owner’s manual
provided with your machine for the complete procedure.
Adjusting Carburetor
Carburetor is calibrated by the engine manufacturer and is
not adjustable.
If engine is operated at altitudes above 1829 m (6,000 ft),
some carburetors may require a special high altitude main
jet. See your authorized dealer.
If engine is hard to start or runs rough, check the TROU-
BLESHOOTING section of this manual.
Possible engine surging will occur at high throttle with
transmission in “N” neutral and mower engagement lever
disengaged. This is a normal condition due to the emission
control system.
After performing the checks in the troubleshooting section
and your engine is still not performing correctly, contact
your authorized dealer.
Replacing Fuel Filter
CAUTION: Avoid injury! Fuel vapors are explo-
sive and flammable:
• Do not smoke while handling fuel.
• Keep fuel away from flames or sparks.
• Shut off engine before servicing.
• Cool engine before servicing.
• Work in a well-ventilated area.
• Clean up spilled fuel immediately.
IMPORTANT: Avoid Damage! When installing a new fuel
filter, the filter arrow must be pointed in the direction of
the fuel flow.
Park machine safely. (See Parking Safely in the
SAFETY section.)
Allow engine to cool.
Slide hose clamps (A) away from fuel filter (B).
Place drain pan under hoses to catch any fuel that may
be left in the hoses.
Disconnect hoses from fuel filter (B).
Install new fuel filter (B).
Make sure fuel filter (B) is installed with arrow pointing
in direction of fuel flow.
Connect hoses to new fuel filter (B).
Install hose clamps (A).
Start engine and check for fuel leaks.
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