Engine Maintenance; Servicing The Air Cleaner - Toro 74237 Operator's Manual

Figure 26
4. Grease the idler pulley pivot (Fig. 38).

Engine Maintenance

Servicing the Air Cleaner

Service the air cleaner elements as follows:
Primary Filter: Replace after every 250 operating
hours or more often in dusty conditions.
Safety Filter: Replace after every 600 operating
hours.
Note: Check the filter more frequently (every
few hours) if operating conditions are extremely
dusty or sandy.
Removing the Filters
1. Disengage the PTO, move the motion control
levers to the neutral locked position and set
the parking brake.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Clean around the air cleaner to prevent dirt
from getting into the engine and causing
damage. Release the latches on the air cleaner
and pull the air cleaner cover off of the air
cleaner body (Figure 27).
4. Clean the inside of the air cleaner cover with
compressed air (Figure 27).
5. Gently slide the primary filter out of the air
cleaner body (Figure 27). Avoid knocking the
filter into the side of the body.
6. Remove the safety filter only if you intend
to replace it. Never attempt to clean the
safety filter. If the safety filter is dirty, then
the primary filter is damaged and you should
replace both filters.
7. Inspect the primary filter for damage by
looking into the filter while shining a bright
light on the outside of the filter. Holes in the
filter will appear as bright spots. If the filter
is damaged discard it.
Figure 27
1. Air lter body
2. Safety lter
3. Primary lter
Servicing the Primary Air Filter
Do not clean the primary filter. Replace it after
250 operating hours.
Servicing the Safety Air Filter
Replace it after 600 operating hours.
Important: Never attempt to clean the
safety filter. If the safety filter is dirty, then
the primary filter is damaged and you should
replace both filters.
Installing the Filters
Important: To prevent engine damage,
always operate the engine with both air filters
and cover installed.
1. If installing new filters, check each filter for
shipping damage. Do not use a damaged filter.
(Figure 27).
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4. Air cleaner cover
5. Latch