Changing the Engine Oil
Service Interval: After the first 5 hours—Change the engine
oil.
Yearly—Change the engine oil.
If possible, run the engine for a few seconds before changing
the oil because warm oil flows better and carries more
contaminants.
Use automotive detergent oil with an API service classification
of SF, SG, SH, SJ, SL, or higher. Refer to your engine owner's
manual.
Use
Figure 41
below to select the best oil viscosity for the
outdoor temperature range expected:
g019049
Engine Oil Capacities
Model
37772
1. Clean the area around the oil-drain cap
1. Oil-drain cap
2. Slide an oil-drain pan under the drain extension and
remove the oil-drain cap.
3. Drain the oil.
Note: Dispose of the used oil properly at a local
recycling center.
4. Install the oil-drain cap.
5. Fill the crankcase with oil.
Figure 41
Engine Oil Capacity
0.53 to 0.59 L (18 to 20 oz)
(Figure
Figure 42
Lubricating the Hex Shaft
Service Interval: Yearly—Lubricate the hex shaft.
Lightly lubricate the hex shaft yearly with automotive engine
oil
(Figure
43).
1. Hex shaft
2. Steel friction pulley
Important: Do not get oil on the rubber wheel or the
steel friction pulley because the traction drive will slip
(Figure
43).
1. Drain the fuel from the fuel tank.
2. Tip the machine forward onto its auger housing and
block it so that it cannot fall.
3. Remove the back cover
42).
1. Screws
4. Move the speed-selector lever to Position R2.
5. Dip your finger in automotive engine oil and lightly
lubricate hex shaft.
6. Move the speed-selector lever to Position 6.
7. Lubricate the other end of the hex shaft.
8. Move the speed-selector lever forward and rearward
a few times.
20
Figure 43
3. Rubber wheel
(Figure
44).
g019019
Figure 44
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1