Toro 22600HD SGR-6, Operator'S Manual

Page: 17 / 24

Checking the Spark Plug
1. Look at the center of the spark plug ( Figure 19 ). If you
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means that the air cleaner is dirty.
Important:
Do not clean the spark plug. Always
replace the spark plug when it has a black coating,
worn electrodes, an oily film, or cracks.
Figure 19
1. Center electrode insulator 3. Air gap (not to scale)
2. Side electrode
2. Check the gap between the center and side electrodes
(
Figure 19 ). Bend the side electrode ( Figure 19 ) if the
gap is not correct.
Installing the Spark Plug
1. Thread the spark plug into the spark plug hole.
2. Tighten the spark plug to 20 ft-lb (27 N-m).
3. Push the wire onto the spark plug.
Belt Maintenance
Checking the Drive Belt
Tension
Service Interval: Every 25 hours
Note:
Replace the belt if it shows any signs of wear, cracks,
or damage.
1. Shut off the engine and wait for all rotating parts to
stop.
2. Remove belt guard retaining screws ( Figure 20 ).
g014510
1 2
3 4
5
4
Figure 20
Your model may vary
1. Belt guard 4. Bolt
2. Lock washer 5. Nut
3. Washer
3. To check belt tension, gently squeeze the belt spans
together. You should be able to push the belt down
about 6 to 10 mm (1/4 to 3/8 inch) from the original
position.
Important:
To extend the belt life, proper tension must
be maintained. A loose belt will cause excessive cutting
wheel slippage and early belt failure. A belt that is too
tight can cause bearing and shaft failure, and rapid belt
wear.
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