Greasing And Lubrication - Toro 22304 Operator's Manual

Checking the Spark Plugs
1. Look at the center of the spark plugs (Fig. 20). If
you see light brown or gray on the insulator, the
engine is operating properly. A black coating on
the insulator usually means the air cleaner is
dirty.
IMPORTANT: Replace the spark plugs when
they have a black coating, worn electrodes, an
oily film, or cracks. Do not attempt to clean a
spark plug.
2. Check the gap between the center and side
electrodes (Fig. 20). Bend the side electrode
(Fig. 20) if the gap is not correct.
2
1
Figure 20
1. Center electrode insulator
2. Side electrode
Installing the Spark Plugs
1. Install the spark plugs.
2. Tighten the spark plugs to 20 ft-lb (27 N.m).
3. Push the wires onto the spark plugs (Fig. 19).
3
0.030 in.
(0.76 mm)
m–3215
3. Air gap (not to scale)

Greasing and Lubrication

Grease all pivot joints every 8 operating hours and
immediately after every washing. Lubricate the drive
chain every 50 operating hours.
Greasing the Traction Unit
Grease Type: General-purpose grease.
1. Lower the loader arms, stop the engine, and
remove the key.
2. Clean the grease fittings with a rag.
3. Connect a grease gun to each fitting in turn.
4. Pump grease into the fittings until it begins to
ooze out of the bearings.
5. Wipe up any excess grease.
Lubricating Traction Drive Chain
1. Lower the loader arms, stop the engine, and
remove the key.
2. Apply a general purpose oil (10W30) onto upper
and lower chain spans.
3. Start the traction unit and slowly move it
forward to expose un–lubed upper and lower
chain spans.
4. Stop the engine and remove the key.
5. Apply oil to newly exposed un–lubed chain
spans.
Maintenance
29