Premaintenance
Procedures
Maintaining the Vehicle
under Special Operating
Conditions
If the v ehicle is subjected to any of the conditions
listed belo w , maintenance should be perfor med
twice as frequently .
• Deser t operation
• Cold climate operation (belo w 50 deg rees F
[10 deg rees C])
• T railer to wing
• Dri ving time typically less than 5 min utes
• F requent operation in dusty conditions
• Constr uction w ork
• After extended operation in m ud, sand, w ater ,
or similar dir ty conditions , ha v e y our brak es
inspected and cleaned as soon as possible . T his
will prev ent any abrasi v e material from causing
ex cessi v e w ear .
• Under frequent hea vy duty operating
conditions , lubricate all g rease fittings and
inspect air cleaner daily to prev ent ex cessi v e
w ear .
Jacking the Vehicle
W henev er the engine is r un for routine
maintenance and/or engine diagnostics , the rear
wheels of the v ehicle should be 1 inc h (25 mm)
off the g round with the rear axle suppor ted on
jac k stands .
T he v ehicle may be unsta ble when using
a jack. It could slip of f the jack, injuring
an y one beneath it.
• Do not star t the engine while the v ehicle
is on a jack.
• Al w ays r emo v e the k ey fr om the ignition
bef or e getting of f of the v ehicle.
• Block the tir es when the v ehicle is on a
jack.
T he jac king point at the front of the v ehicle is on
the front of the frame behind the to wing tongue
( Figure 29 ) T he jac king point at the rear of the
v ehicle 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 ev er y
100 hours or once a year , whic hev er occurs first.
Grease them more frequently when using the
v ehicle for hea vy-duty operations .
Grease T ype: Number 2 General Pur pose Lithium
Base Grease
Adding Grease
1. Wipe the g rease fitting clean so foreign matter
cannot be forced into the bearing or bushing .
2. Pump g rease into the bearing or bushing .
3. Wipe off ex cess g rease .
30
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