Operator's Manual

29
14. Lower the traction unit to the ground.
Servicing the Spark Plugs
Check the spark plugs after every 200 operating hours.
Ensure that the air gap between the center and side
electrodes is correct before installing each spark plug. Use
a spark plug wrench for removing and installing the spark
plugs and a gapping tool/feeler gauge to check and adjust
the air gap. Install new spark plugs if necessary.
Type: Champion Premium Gold 2071, RC12YC,
or equivalent. Air Gap: 0.030 in. (0.76 mm)
Removing the Spark Plugs
1. Lower the loader arms, stop the engine, and remove
the key.
2. Open the hood; refer to Opening the Hood,
page 21.
3. Pull the wires off of the spark plugs (Fig. 38).
4. Clean around the spark plugs.
5. Remove both spark plugs and metal washers.
m–5922
1
2
Figure 38
1. Spark plug wire 2. Spark plug
Checking the Spark Plugs
1. Look at the center of both spark plugs (Fig. 39). 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 Never clean the spark plugs. Always
replace the spark plugs when they have a black coating,
worn electrodes, an oily film, or cracks.
2. Check the gap between the center and side electrodes
(Fig. 39).
3. Bend the side electrode (Fig. 39) if the gap is not
correct.
0.030 in.
(0.76 mm)
2
3
1
m–3215
Figure 39
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
Installing the Spark Plugs
1. Thread the spark plugs into the spark plug holes.
2. Tighten the spark plugs to 20 ft-lb (27 N.m).
3. Push the wires onto the spark plugs (Fig. 38).
4. Close the hood.
Greasing the Traction Unit
Grease all pivot joints every 8 operating hours and
immediately after every washing.
Grease Type: General-purpose grease.
1. Lower the loader arms and stop the engine. Remove
the key.
2. Clean the grease fittings with a rag.
3. Connect a grease gun to each fitting (Fig 40 and 41).
m–4732
Figure 40