Air Cleaner - Toro 74241 Operator's Manual

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Figure 23
1. Sail area of blade
2. Blade
3. Spring disk

Air Cleaner

Primary Filter: Replace when Filter Minder reaches
"Change Filter" level.
Safety Filter: Replace after every 600 operating hours.
Note: Check the filter minder more frequently if operating
conditions are extremely dusty or sandy.
Using Filter Minder
This machine contains an air cleaner "Filter Minder"
gauge. Check this daily.
The plunger inside the gauge canister will rise as the air
cleaner becomes dirty and restricted from use. As it
approaches or reaches the "Change Filter" level, 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 lower ranges, 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 Filter
1. Disengage the power take off (PTO), set the parking
brake, and turn the ignition key to "OFF" to stop the
engine. Remove the key. Remove spark plug wire(s)
and remove the key.
2. Release the latches on the air cleaner and pull the air
cleaner cover off of the air cleaner body (Fig. 24).
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. 24). 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, otherwise
clean 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 24
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.
Installing the Filters
Important To prevent engine damage, always operate
the engine with both air filters and cover installed.
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4. Primary filter
5. Safety filter