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Service Transmission - 18
SERVICE TRANSMISSION
Checking Spark Plug
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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 complete 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 TROUBLESHOOTING
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
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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
Hydraulic Oil
Use only 5W-50 or 15W-50 all synthetic oil.
Checking Hydraulic Oil Level
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1. Park machine safely. (Refer to Parking Safely in SAFETY section.)
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2. Clean area around reservoir dipstick cap (A).
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.
CAUTION: Avoid injury! Fuel vapors are explosive 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.
IMPORTANT: Avoid Damage! Check oil level in reservoir tank
when oil is cold.
Do not overfill oil reservoir tank. Oil will expand during operation
and could overflow.