SERVICE TRANSMISSION
•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
•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.
1.Park machine safely. (See Parking Safely in the SAFETY section.)
2.Allow engine to cool.
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3.Slide hose clamps (A) away from fuel filter (B).
4.Place drain pan under hoses to catch any fuel that may be left in the hoses.
5.Disconnect hoses from fuel filter (B).
6.Install new fuel filter (B).
•Make sure fuel filter (B) is installed with arrow pointing in direction of fuel flow.
7.Connect hoses to new fuel filter (B).
8.Install hose clamps (A).
9.Start engine and check for fuel leaks.
SERVICE TRANSMISSION- 22