27
Caution
If you leave the key in the On/Off switch, someone could accidently start the vehicle and
seriously injure you or other bystanders.
Remove the key from the On/Off switch before you do any maintenance.
Heavy Duty Operation
Important
If the vehicle is subjected to any of the
conditions listed below, maintenance should be performed
twice as frequently:
•
Desert operation
•
Cold climate operation (below 32 degrees F)
•
Trailer towing
•
Frequent operation on dusty roads
•
Construction work
•
After extended operation in mud, sand, water, or similar
dirty conditions, have your brakes inspected and
cleaned as soon as possible. This will prevent any
abrasive material from causing excessive wear.
•
Under frequent heavy duty operating conditions,
lubricate all grease fittings.
Jacking the Vehicle
Whenever the motor is run for routine maintenance and/or
diagnostics, the rear wheels of the vehicle should be 1 inch
(25 mm) off of the ground with the rear axle supported on
jack stands.
Danger
A vehicle on a jack may be unstable and slip off of
the jack, injuring anyone beneath it.
•
Do not start the vehicle while the vehicle is on a
jack.
•
Always remove the key from the switch before
getting off of the vehicle.
•
Block the tires when the vehicle is on a jack.
The jacking point at the front of the vehicle is on the front
of the frame behind the towing tongue (Fig. 28). The
jacking point at the rear of the vehicle is under the axle
tubes (Fig. 29).
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1
Figure 28
1. Front jacking points
1
1
m–7443
Figure 29
1. Rear jacking points
