Toro 74170 - Engine Oil and Spark Plug Service; Checking Engine Oil Level

Maintenance
40
Air Cleaner
Foam Element: Clean and re-oil after every 25
operating hours.
Paper Element: Clean after every 100 operating
hours. Replace after every 300 operating hours or
yearly. Which ever comes 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. 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.
Unlatch two side latches and remove the air
cleaner cover (Fig. 23).
1
4
2
M-4289
3 5
6
Figure 23
1. Cover
2. Foam
element
3. Paper element
4. Wing nut
5. Air cleaner base
6. Latches
3. Carefully remove the foam element from the
paper element (Fig. 23).
4. Unscrew the wing nut and remove the paper
element (Fig. 23).
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. Soak element in new engine oil. (Fig. 24).
Squeeze the element to remove excess oil.
IMPORTANT: Replace the foam element if it
is torn or worn.
2
1
Figure 24
1. Foam element 2. Oil