Air Cleaner - Toro 74178 Operator's Manual

Air Cleaner

Foam Element: Clean and re-oil after every 25 operating
hours.
Paper Element: Replace after every 100 operating hours.
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. Disengage the power take off (PTO), set the parking
brake, and turn the ignition key to "OFF" to stop the
engine. Remove the key.
2. Clean around the air cleaner to prevent dirt from
getting into the engine and causing damage. Unscrew
the knob and remove the air cleaner cover (Fig. 22).
5
7
4
3
2
9
1
Figure 22
1. Knob
2. Air cleaner cover
3. Cover nut
4. Cover
5. Foam element
6. Paper element
3. Carefully slide the foam element off the paper element
(Fig. 22).
4. Unscrew the cover nut and remove the cover and paper
element (Fig. 22).
11
10
6
8
m–4086
7. Rubber seal
8. Air cleaner base
9. Knob gasket
10. Spitback cup
11. Spitback gasket
28
Cleaning the Foam and Paper Elements
1. Foam Element
A. Wash the foam element in liquid soap and warm
water. When the element is clean, rinse it
thoroughly.
B. Dry the element by squeezing it in a clean cloth
(do not wring).
C. Put oil on the element (Fig. 23). Squeeze the
element to distribute the oil.
Important
Replace the foam element if it is torn or
worn.
1
Figure 23
1. Foam element
2. Paper Element
A. Lightly tap the element on a flat surface to remove
dust and dirt (Fig. 24).
B. Inspect the element for tears, an oily film, and
damage to the rubber seal.
Important Never clean the paper element with
pressurized air or liquids, such as solvent, gas, or
kerosene. Replace the paper element if it is damaged or
cannot be cleaned thoroughly.
2
Figure 24
1. Paper element
2
m–1213
2. Oil
1
m–1213
2. Rubber seal