Inspecting And Replacing The Spark Plug; Adjusting The Traction Drive Belt; Replacing The Traction Drive Belt - Toro 38606 Operator's Manual

Important: Do not excessively oil the
snowthrower; extra oil may enter the traction
drive and cause the traction drive belt to slip.
5. Wipe up any excess oil.
6. Grease the snowthrower as shown in Figure 28.
7. Wipe up any excess grease.
8. Install the bottom cover.
9. Return the snowthrower to its upright position.
10. Connect the wire to the spark plug.
Inspecting and Replacing the
Spark Plug
Service Interval: Every 100 hours
Use a Champion RN4C or equivalent spark plug.
Check and gap the spark yearly, and replace the plug
if necessary.
1. Clean around the base of the spark plug.
2. Remove the spark plug.
3. Examine the spark plug and replace it if it is cracked,
fouled, dirty, or if the electrodes are worn.
Important: Do not clean the electrodes because
grit could enter the cylinder and damage the
engine.
4. Set the gap between the electrodes on the spark plug
at 0.030 inch (0.76 mm) (Figure 29).
Figure 28
1. 0.030 inch (0.76 mm)
5. Install the spark plug by hand and then torque it to
15 ft-lb (20.4 N-m).
Note: If you do not have a torque wrench, tighten
the plug firmly.
Adjusting the Traction Drive
Belt
Service Interval: After the first hour
Before each use or daily
Adjust the traction drive belt after the first operating
hour, after every 5 operating hours thereafter, and
when the speed selector lever shifts properly but the
snowthrower does not drive in the forward or reverse
speeds.
1. Check and adjust the traction drive as described in
Installing the Traction Rod.
2. If the problem persists after adjusting the linkage,
contact an Authorized Service Dealer.
3. Connect the wire to the spark plug.
Replacing the Traction Drive
Belt
If the traction drive belt becomes worn, oil-soaked, or
otherwise damaged, replace the belt.
1. Drain gasoline from the fuel tank and the oil from
the crankcase. Refer to Emptying the Fuel Tank and
to Changing the Engine Oil.
2. Remove the 2 flange-head bolts that hold the belt
cover in place and set the cover aside (Figure 30).
20
Figure 29