Servicing The Air Cleaner - Toro 74225 Operator's Manual

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Figure 34
1. Sail Area of Blade
2. Blade
3. Spring Disk

Servicing the Air Cleaner

Primary Filter: Clean or replace every 200 operating hours
or when Filter Minder reaches Change Filter level.
Safety Filter: Replace after every 600 operating hours.
Note: Service the air cleaner more frequently if operating
conditions are extremely dusty or sandy.
Using Filter Minder
This machine contains an air cleaner Filter Minder
gauge.
Filter Minder: Check this daily.
The plunger inside the gauge canister will change to red
when the air cleaner element becomes dirty and restricted.
When it changes red, air cleaner maintenance is required.
1. Start by visually checking the condition of the primary
element. If the element is visually dirty, replace the
primary element. Do not attempt to clean it.
2. Reset the gauge by depressing the button in the bottom
of the canister until the plunger returns to the lowest
point.
3. Test run the engine and recheck the gauge. If the
plunger remains in the lowest range, normal operation
can resume. If the plunger returns to the Change Filter
level, the primary element is restricted and must be
replaced, even though it may not appear to be dirty.
4. The gauge may be reset at any time, however it will
return to the prior position if corrective filter servicing
has not been performed.
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4. Blade Bolt
5. Cone Towards Bolt Head
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Removing the Filters
1. Disengage the power take off (PTO), set the parking
brake, and turn the ignition key to off. Remove the
key. Remove spark plug wire(s).
2. Release the latches on the air cleaner and pull the air
cleaner cover off of the air cleaner body (Fig. 35).
3. Clean the inside of the air cleaner cover with
compressed air.
4. Gently slide the primary filter out of the air cleaner
body (Fig. 35). Avoid knocking the filter into the side
of the body. Do not remove the safety filter, unless you
intend to replace it as well.
5. 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.
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.
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Figure 35
1. Latches
2. Air cleaner cover
3. Air filter body
Cleaning the Primary Filter
Blow compressed air from the inside to the outside of the
primary filter.
Important
Do not exceed 100 psi and keep the hose at
least 2 inches from the filter. Replace air filters if they are
damaged or cannot be cleaned.
Important Do not clean safety filter. Replace it after
600 operating hours.
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4. Primary filter
5. Safety filter