Toro 72907 - Engine Maintenance; Engine Safety; Servicing the Air Cleaner

Engine Maintenance
Engine Safety
• Keep your hands, feet, face, clothing, and other
body parts away from the muf er 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 150 hours —Inspect the
primary lter (more often in dirty or
dusty conditions).
Every 300 hours/Y early (whichever comes
rst) —Replace the primary air lter (more often
in dirty or dusty conditions).
Every 300 hours —Check the inner air lter
(more often in dirty or dusty conditions).
Every 600 hours —Replace the inner air lter .
Removing the Filters
1. Park the machine on a level surface, disengage
the blade-control switch (PT O), and engage the
parking brake.
2. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
3. Release the latches on the air cleaner and
pull the air-inlet cover of f the air-cleaner body
( Figure 54 ).
4. Clean the air-inlet screen and cover .
5. Install the air-inlet cover and secure it with the
latches ( Figure 54 ).
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Figure 54
1. Air-inlet cover 3. Air-cleaner body
2. Air-inlet screen 4. Latch
6. Release the latches on the air cleaner and pull
the air-cleaner cover of f the air-cleaner body
( Figure 55 ).
7. Clean the inside of the air-cleaner cover with
compressed air .
8. Gently slide the primary lter out of the
air-cleaner body ( Figure 55 ).
Note: A void knocking the lter into the side of
the body .
9. Remove the inner lter only if you intend to
replace it.
Important: Never attempt to clean the inner
lter . If the safety lter is dirty , then the
primary lter is damaged. Replace both
lters.
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Figure 55
1. Inner lter
4. Latch
2. Primary lter
5. Air-cleaner body
3. Air-cleaner cover
10. Inspect the primary lter for damage by looking
into the lter , while shining a bright light on the
outside of the lter .
Note: Holes in the lter will appear as bright
spots. If the lter is damaged, discard it.
Inspecting the Filters
1. Inspect the inner lter . If it is dirty , replace both
the inner and primary lters.
Important: Do not attempt to clean the
inner lter . If the inner lter is dirty , then the
primary lter is damaged.
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