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Engine Maintenance
Engine Safety
•
Keep your hands, feet, face, clothing, and other
body parts away from the muffler and other hot
surfaces. Allow engine components to cool before
performing maintenance.
•
Do not change the engine governor speed or
overspeed the engine.
Servicing the Air Cleaner
Service Interval: Every 25 hours—Clean the
air-cleaner foam element (more
often in dusty, dirty conditions).
Every 100 hours—Replace the air-cleaner foam
element (more often in dusty, dirty conditions).
Note:
Service the air cleaner more frequently (every
few hours) if operating conditions are extremely dusty
or sandy.
Removing the Foam and Paper
Elements
1.
Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Clean around the air-cleaner cover to prevent
dirt from getting into the engine and causing
damage.
4.
Release the retaining clamps on the air cleaner
and pull the air-cleaner cover off the air-cleaner
body
Figure 31
1. Cover
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2. Retaining clamp
5.
Separate the foam and paper elements
32).
1. Paper element
Servicing the Foam Element
1.
Wash the foam element in liquid soap and
warm water. When the element is clean, rinse
it thoroughly.
2.
Dry the element by squeezing it in a clean cloth.
Important:
Replace the foam element if it
is torn or worn.
3.
Lightly oil the foam element using new engine oil
and squeeze out any excess oil.
Servicing the Paper Air-Cleaner
Element
Service Interval: Every 100 hours or yearly,
whichever comes first—Replace the
paper air-cleaner element (more
often in dirty or dusty conditions).
1.
Clean the paper element by tapping it gently to
remove dust.
Note:
If it is very dirty, replace the paper
element with a new one.
2.
Inspect the element for tears, an oily film, or
damage to the rubber seal.
3.
Replace the paper element if it is damaged.
Important:
Do not clean the paper filter.
Installing the Air Cleaner
1.
Install the foam pre-cleaner element over the
paper element.
Note:
Ensure that you do not damage the
elements.
2.
Install the air-cleaner elements onto the
air-cleaner base.
3.
Install the cover and secure it with the retaining
clamps
(Figure
30
Figure 32
2. Foam element
31).
(Figure
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