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Premaintenance
Procedures
Maintaining the Vehicle
under Special Operating
Conditions
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 50 degrees F
[10 degrees C])
• Trailer towing
• Driving time typically less than 5 minutes
• Frequent operation in dusty conditions
• 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 and
inspect air cleaner daily to prevent excessive
wear.
Jacking the Vehicle
Whenever the engine is run for routine
maintenance and/or engine diagnostics, the rear
wheels of the vehicle should be 1 inch (25 mm)
off the ground with the rear axle supported on
jack stands.
The vehicle may be unstable when using
a jack. It could slip off the jack, injuring
anyone beneath it.
• Do not start the engine while the vehicle
is on a jack.
• Always remove the key from the ignition
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
(Figure 29) The jacking point at the rear of the
vehicle is under the axle tubes (Figure 30).
Figure 29
1. Front jacking point
Figure 30
1. Rear jacking points
Lubrication
Lubricate all of the bearings and bushings every
100 hours or once a year, whichever occurs first.
Grease them more frequently when using the
vehicle for heavy-duty operations.
Grease Type: Number 2 General Purpose Lithium
Base Grease
Adding Grease
1. Wipe the grease fitting clean so foreign matter
cannot be forced into the bearing or bushing.
2. Pump grease into the bearing or bushing.
3. Wipe off excess grease.
30
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