Engine Maintenance; Servicing The Air Cleaner - Toro 74433 Operator's Manual

Engine Maintenance

Servicing the Air Cleaner

Foam Element: Clean after every 25 operating hours,
or yearly, whichever occurs first.
Paper Element: Replace after every 100 operating
hours or yearly, whichever occurs first.
Note: Service the air cleaner more frequently (every
few hours) if operating conditions are extremely dusty
or sandy.
Removing the Foam and Paper
Elements
1. Park the machine on a level surface and disengage
the blade control switch.
2. Move the motion control levers to the brake position,
stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove the engine hood.
4. Clean around the air cleaner to prevent dirt from
getting into the engine and causing damage. Pull up
on the air cleaner cover handle and rotate it toward
the engine (Figure 31). Remove the air cleaner cover.
Figure 31
1. Air cleaner cover
5. Carefully slide the paper element and foam element
from the blower housing (Figure 32).
2. Air cleaner cover handle
1. Paper element
2. Foam element
3. Air cleaner cover
Cleaning the Foam Element
Service Interval: Every 25 hours
1. Wash the foam element in liquid soap and warm
water. When the element is clean, rinse it thoroughly.
2. Dry the element by squeezing it in a clean cloth. Do
not oil the element.
Important: Replace the foam element if it is
torn or worn.
Important: Do not clean or oil the paper
element . Replace the paper element if it is
damaged or cannot be cleaned thoroughly.
Installing the Foam and Paper Elements
Service Interval: Every 100 hours
Important: To prevent engine damage, always
operate the engine with the complete foam and
paper air cleaner assembly installed.
1. Place the foam element and paper element into the
blower housing.
Note: Make sure that the rubber seal is flat against
the air cleaner base.
2. Align the tabs on the air cleaner cover with the slots
of the blower housing (Figure 32). Hook the handle
onto the cover and press down on the handle to lock
the cover in place.
27
Figure 32
4. Tab
5. Slot
6. Blower housing