Servicing the Spark Plug(s)
Service Interval : Every 200 hours —Check the spark
plug(s).
Every 500 hours —Replace the spark plug(s).
T ype: Champion XC12YC
Air Gap: 0.76 mm (0.03 inch)
Removing the Spark Plug(s)
1. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
2. Disengage the PT O, move the motion-control
levers to the N EUTRAL -L OCK position, and
engage the parking brake.
3. Remove the left hydraulic-unit shroud in the
order listed with Figure 61 . This gives you
access to the front spark plug.
g009922
g009919
Figure 61
1. Pull this tab out to the
side in the direction of the
arrow
3. Pull the shroud of f this
frame tab in the direction
of the arrow
2. Pull the shroud of f this
frame tab in the direction
of the arrow
4. Shroud
4. Remove the spark plug.
g008803
g027478
Figure 62
Checking the Spark Plug(s)
Important: Do not clean the spark plug(s).
Always replace the spark plug(s) when it has a
black coating, worn electrodes, an oily lm, or
cracks.
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 .
Set the gap to 0.76 mm (0.03 inch).
g206628
Figure 63
Installing the Spark Plug(s)
1. Install the spark plug(s) as shown in Figure 64 .
2. Install the hydraulic shroud ( Figure 61 ).
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