Engine Maintenance; Servicing The Air Cleaner - Toro 74958 Operator's Manual

Engine Maintenance

Servicing the Air Cleaner

Service Interval: Every 150 hours—Inspect the
primary filter and air-inlet screen.
Every 300 hours/Yearly (whichever comes
first)—Replace the primary air filter (more often
in dirty or dusty conditions).
Every 300 hours—Check the inner air filter.
Every 600 hours—Replace the inner air filter.
Note:
Check the filters more frequently if the
operating conditions are extremely dusty or sandy.
Removing the Filters
1. Disengage the blade-control switch (PTO), move
the motion-control levers to the N
position, and set 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. Release the latches on the air cleaner and
pull the air-inlet cover off the air-cleaner body
(Figure 43).
4. Clean the air-inlet screen and cover.
5. Install the air-inlet cover and secure it with the
latches (Figure 43).
Figure 43
1. Air-inlet cover
2. Air-inlet screen
6. Release the latches on the air cleaner and pull
the air-cleaner cover off the air-cleaner body
(Figure 44).
7. Clean the inside of the air-cleaner cover with
compressed air.
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3. Air-cleaner body
4. Latch
8. Gently slide the primary filter out of the
air-cleaner body
Note:
Avoid knocking the filter into the side of
the body.
9. Remove the inner filter only if you intend to
replace it.
Important:
Never attempt to clean the inner
filter. If the safety filter is dirty, then the
primary filter is damaged. Replace both
filters.
1. Inner filter
2. Primary filter
3. Air-cleaner cover
10. Inspect the primary filter for damage by looking
into the filter while shining a bright light on the
outside of the filter.
Note:
Any holes in the filter appear as bright
spots. If the filter is damaged, discard it.
Servicing the Primary Filter
•
If the primary filter is dirty, bent, or damaged,
replace it.
•
Do not clean the primary filter.
Servicing the Safety Filter
Replace the safety filter, never clean it.
Important:
Never attempt to clean the safety
filter. If the safety filter is dirty, then the primary
filter is damaged. Replace both filters.
39
(Figure 44).
Figure 44
4. Latch
5. Air-cleaner body
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