Lubricating The Hex Shaft; Replacing The Spark Plug - Toro 38657C Operator's Manual

Lubricating the Hex Shaft

Service Interval: Yearly
Lightly lubricate the hex shaft yearly with automotive
engine oil (Figure 50).
1. Hex shaft
2. Aluminum friction plate
Important: Do not get oil on the rubber wheel
or the aluminum friction drive plate because the
traction drive will slip (Figure 50).
1. Drain the gasoline from the fuel tank.
2. Tip the snowthrower forward onto its auger housing
and block it so that it cannot fall.
3. Remove the back cover (Figure 51).
1. Back cover
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.
9. Install the back cover and return the snowthrower
to the operating position.
Figure 50
3. Rubber wheel
Figure 51

Replacing the Spark Plug

Service Interval: Every 100 hours—Replace the spark
plug.
Use a Champion QC12YC or equivalent spark plug.
Note: To access the spark plug, you must first remove
the upper snow hood (Figure 52).
1. Choke knob
2. Upper snow hood
1. Remove the choke knob and the ignition key
(Figure 52).
2. Remove the 2 screws that secure the upper snow
hood to the snowthrower (Figure 52).
3. Slowly remove the upper snow hood, ensuring that
the primer bulb hose and the ignition wire remain
connected.
4. Remove the bracket thumb screw and the bracket
(Figure 53).
22
Figure 52
3. Ignition key
4. Screw (2)