Servicing The Engine Oil - Toro 74177 Operator's Manual

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Cleaning the Paper Element
1. Lightly tap the element on a flat surface to remove
dust and dirt (Fig. 36).
2. 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 36
1. Paper element
Installing the Foam and Paper Elements
Important
To prevent engine damage, always operate
the engine with the complete foam and paper air cleaner
assembly installed.
1. Carefully slide the foam element onto the paper air
cleaner element (Fig. 34).
2. Place the air cleaner assembly onto the air cleaner base
(Fig. 34).
3. Install the air cleaner cover and secure with cover nut
(Fig. 34).

Servicing the Engine Oil

Change oil:
After the first 5 operating hours.
After every 100 operating hours.
Note: Change oil more frequently when operating
conditions are extremely dusty or sandy.
1
m–1213
2. Rubber seal
30
Oil Type: Detergent oil (API service SG or SH)
Crankcase Capacity: w/filter, 67 oz. (2 l)
Viscosity: See table below
USE THESE SAE VISCOSITY OILS
10W–30, 10W–40
5W–20, 5W–30
–20
0
20
40
32
F
–30
–20
–10
0
C
Checking the Engine Oil Level
1. Park the machine on a level surface, disengage the
power take off (PTO) and turn the ignition key to off.
Remove the key.
2. Clean around the oil dipstick (Fig. 37) so dirt cannot
fall into the filler hole and damage the engine.
3. Unscrew the oil dipstick and wipe the metal end clean
(Fig. 37).
4. Slide the oil dipstick fully into the filler tube, do not
thread onto tube (Fig. 37). Pull the dipstick out and
look at the metal end. If oil level is low, slowly pour
only enough oil into the filler tube to raise the level to
the full mark.
Important
Do not overfill the crankcase with oil
because the engine may be damaged.
1
2
m–4090
Figure 37
1. Oil dipstick
2. Filler tube
60
80
100
10
20
30
40
3
m–3219
3. Metal end

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