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14. Insert dipstick. Tighten cap.
15. Start engine and run at slow throttle for approximately two minutes.
Check for leaks around filter and drain valve.
16. Stop engine.
17. Check oil level:
• Remove dipstick cap. Wipe dipstick clean.
NOTE: Allow dipstick cap to rest on threads of filler tube when
checking oil level. Do not tighten dipstick cap when checking oil
level.
• Insert dipstick and allow cap to rest on threads of filler. Do not tighten
cap.
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IMPORTANT: Avoid Damage! To prevent extensive engine wear or
damage, always maintain the proper engine oil level. Never
operate the engine with the oil level below the add mark or over
the full mark.
• Remove dipstick. Add oil as needed to bring level to the full mark
without overfilling.
18. Insert dipstick. Tighten cap.
Cleaning Engine Air Intake Screen and Fan
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CAUTION: Avoid injury! Compressed air can cause debris to
fly 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).
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IMPORTANT: Avoid damage! An obstructed air intake screen can
cause engine damage due to overheating. Keep air intake screen
and other external surfaces of the engine, including cooling fins,
clean at all times to allow adequate air intake.
Keep air intake screens and engine cooling fins clear of debris to ensure
proper cooling. See the engine manufacturer's owner's manual provided
with your machine for the complete procedure.
Checking and Cleaning Air Filter Elements
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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.
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IMPORTANT: Avoid damage! Dirt and debris can enter the engine
through a damaged filter element:
• 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
SERVICE ENGINE
operating machine in dusty conditions.
Check and clean air filter elements 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.
Checking Spark Plug
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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 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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CAUTION: Avoid injury! Fuel vapors are explosive and
flammable:
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.
Service Engine - 20
• 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.
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