Use of a non-approved automatic transmission fluid may cause
internal transmission component damage.
Manual transmission fluid
Refer to theScheduled Maintenance Guidechapter for transmission
fluid level checks and fluid change intervals.
Your manual transmission may be filled with an optional synthetic fluid
which allows the use of extended service intervals. A tag on the filler
plug will identify the use of the synthetic fluid.
Use only fluid that meets manufacturer specifications (refer to
Lubricant specificationsin this chapter.
Use of a non-approved transmission fluid may cause internal
transmission component damage.
Check your transmission fluid level using the following procedure:
1. Park the vehicle on level ground.
2. Set the parking brake and shift into 1 (First) and turn the engine off.
3. Clean any dirt from around the filler plug.
4. Remove the filler plug and inspect the fluid level.
5. The fluid level should be up to the bottom of the filler plug opening.
6. If necessary, add enough fluid through the filler plug opening so that
the fluid level is at the bottom of the opening.
7. Clean and install the filler plug securely.
Drain and refill your transmission fluid using the following procedure:
1. Drain the transmission while the fluid is warm.
2. Park the vehicle on level ground.
3. Set the parking brake and shift into 1 (First) and turn the engine off.
4. Clean any dirt from around the filler and drain plugs.
5. Remove the filler and drain plugs and drain the fluid into a suitable
container. Dispose all used automotive fluids in a responsible manner
following your local authorized standards.
6. Clean and install the drain plug securely.
7. Add enough fluid through the filler plug opening so that the fluid level
is up to the bottom of the opening.
8. Clean and install the filler plug securely.
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Verify drive axle air suspension height and height control valve
performance at engine lube oil change intervals.
Periodically:
•Check condition of spring leaves for evidence of fatigue, bending or
breakage.
•Check condition of suspension mounting brackets and bushings.
•Check that torque rod mounting fasteners are tight.
•Check to be sure the suspension alignment is maintained at all time.
•Check U-bolts after the chassis has been operating under load for
1,000 miles (1,600 km) or six months, whichever comes first, the
U-Bolt nuts must be re-torqued. The U-Bolt nuts thereafter must be
re-torqued every 36,000 miles (58,000 km). The U-Bolt and nut
threads and seats should be cleaned and lubricated to ensure a “like
new” condition when re-torquing.
Note:See theU-Bolt Nut Torquechart later in this section.
Supporting your vehicle for service
When performing service repairs on your vehicle, first prepare the
vehicle by doing the following:
1. Park the vehicle on a level concrete floor.
2. Set the parking brake and block the wheels to prevent the vehicle
from moving.
3. Select a jack with a rated capacity sufficient to lift and hold up the
vehicle.
4. Raise the vehicle with the jack applied to the axle(s). DO NOT use the
bumper as a lifting point.
5. Support the vehicle with floor stands under the axle(s). If the axle or
the suspension are being serviced, support the vehicle with floor stands
under the frame side-members, preferably between the axles.
Do not use a jack when working under a vehicle. It may give
way, causing the vehicle to fall and result in property damage,
personal injury or death. Always use floor stands to support the
vehicle.
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6. Re-torque the nuts to 425 ft. lb (576 N•m), using a diagonal pattern.
(For vehicles equipped with 14ACC, 14 ADN and 14ADP axles.)
7. Use the same diagonal pattern with each U-bolt nut re-torque.
Spring U-bolt checks
Check U-bolt nuts and re-torque every 36,000 miles (58,000 km) after
initial 1,000 miles (1,600 km) re-torque. The U-bolt and nut threads and
seats should be cleaned and lubricated to ensure peak condition when
re-torqued.
PROPELLER SHAFT
At the regular lubrication interval, check the universal joints for any
evidence of wear or looseness. Should propeller shaft vibrations occur,
stop the vehicle immediately to avoid possible hazardous consequences
or damage to other components.
REAR AXLE LUBRICANT
Refer to theScheduled Maintenance Guidechapter for rear axle
lubricant level checks and lubricant change intervals.
Your rear axle may be filled with an optional synthetic lubricant which
allows the use of extended service intervals. A tag on the filler plug will
identify the use of the synthetic lubricant.
Use only a lubricant that meets manufacturer specifications (refer to
Lubricant specificationsin this chapter).
Use of a non-approved rear axle lubricant may cause internal axle
component damage.
Checking the rear axle lubricant level
1. Park the vehicle on level ground.
2. Set the parking brake and shift into N (Neutral) (automatic
transmission) or 1 (First) (manual transmission) and turn the engine off.
3. Clean any dirt from around the rear axle filler plug.
4. Remove the filler plug and inspect the lubricant level.
5. The lubricant level should be up to the bottom of the filler plug
opening.
6. If necessary, add enough lubricant through the filler plug opening so
that the lubricant level is at the bottom of the opening.
7. Clean and install the filler plug securely.
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Draining and refilling the rear axle lubricant
1. Drain the rear axle while the lubricant is warm.
2. Park the vehicle on level ground.
3. Set the parking brake and shift into N (Neutral) (automatic
transmission) or 1 (First) (manual transmission) and turn the engine off.
4. Clean any dirt from around the rear axle filler and drain plugs.
5. Remove the filler and drain plugs and drain the lubricant into a
suitable container. Dispose of all used automotive fluids in a responsible
manner following your local authorized standards.
6. Clean and install the drain plug securely.
7. Add enough lubricant through the filler plug opening so that the
lubricant level is up to the bottom of the opening.
8. Clean and install the filler plug securely.
WHEELS
General
Wheel bearings should be inspected, lubricated and adjusted at regular
intervals. This is especially important if operating in deep sand, mud, or
water. Refer toLubricant specificationsin this chapter.
When installing wheel balance weights, they must be mounted on the
dome-side of the wheel only. Failure to do so may result in loss of wheel
weight and/or damage to brakes or wheels.
Important:Remember to replace the wheel air valves when the road
tires are replaced at the end of their useful life.
Oil lubricated front wheel bearings
During normal vehicle duty cycle, the lube and air inside the hub/wheel
cavity expands and if not vented, causes pressure build-up that could
cause accelerated seal wear.
There are two venting methods:
•a slit or small hole in the rubber check vent or
•the window
You can use either of these methods to prevent pressure build-up.
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Daily owner checks
EngineCheck the air filter restriction gauge.
Check the engine oil.
Inspect the coolant level (6.0L Power
Stroke engine; Caterpillar and
Cummins engines, refer to the
Owner’s Manual).
Brake systemCheck the air brake system reservoir
automatic drain valve operation.
Drain the air brake system reservoir -
manual valve.
Transmission systemVisually check the automatic
transmission for fluid leakage.
Steering systemCheck the power steering pump fluid
level and check the system for leaks.
Check the entire vehicle for evidence
of fluid leaks.
U.S. Department of
Transportation, Federal
Highway Administration
requirements (ensure that
the entire system is
functioning properly)Check the service brakes.
Check the parking brake.
Check the steering mechanism.
Check the lighting devices and
reflectors.
Check the tires.
Check the horn.
Check the windshield wipers.
Check the rear vision mirrors.
Check the wheels and rims.
Check the emergency equipment.
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A
Air conditioning ..........................51
manual heating and air
conditioning system .................51
Air suspension ...........................119
Anti-lock brake system
(see Brakes) ..............................117
Audio system
(see Radio) ................33–34, 39, 44
Automatic transmission ............121
fluid, adding ............................192
fluid, checking ........................192
fluid, refill capacities ..............232
fluid, specification ..................218
Auxiliary power point .................59
Axle ............................132, 170, 207
lubricant specifications ..........218
refill capacities ........................231
B
Battery .......................................186
charging system warning
light ............................................23
jumping a disabled battery ....151
servicing ..................................264
voltage gauge ............................28
BeltMinder ...................................79
Brakes ..........................98, 104, 170
adjustment ..............................173
anti-lock ...........................117–118
anti-lock brake system (ABS)
warning light .....................23, 117
brake warning light ..................23
fluid, checking and adding ...173,
186
fluid, specifications .................218
parking ....................100, 106, 174
Bulbs ............................................55C
Catalytic converter
(see Emission control) .............174
CD-single premium .....................33
Cell phone use ..............................7
Child safety restraints ................83
child safety belts ......................83
Child safety seats ........................86
attaching with tether straps ....90
in front seat ..............................88
in rear seat ................................88
tether anchorage hardware .....90
Child safety seats - booster
seats .............................................84
Cleaning your vehicle
chrome and aluminum
parts .........................................164
engine compartment ..............164
exterior ....................................166
instrument panel ....................165
interior .....................................165
interior trim ............................165
plastic parts ............................164
washing ....................................163
waxing .....................................163
wheels ......................................164
Climate control (see Air
conditioning or Heating) ......50–51
Clutch ................................123, 190
adjusting ..................................191
fluid ..........................................190
operation while driving ..........123
specifications ..........................218
Controls
power seat .................................71
Coolant ......................................181
checking and adding ..............181
refill capacities ........................232
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Headlamps ...................................53
aiming ........................................54
daytime running lights .............53
high beam .................................53
warning chime ..........................23
Heating ..................................50–51
heater only system ...................50
manual heating and air
conditioning system .................51
Hood ..........................................175
I
Ignition .........................................91
chime .........................................23
Infant seats (see Safety seats) ..86
Instrument panel
cleaning ...................................165
lighting up panel and
interior .......................................54
J
Jump-starting your vehicle ......151
K
Keys
key in ignition chime ...............23
positions of the ignition ...........91
L
Lamps
bulb replacement
specifications chart ..................55
cargo lamps ...............................54
daytime running light ...............53
headlamps .................................53
high beams ................................53instrument panel, dimming .....54
interior lamps ...........................55
replacing bulbs ...................55–57
Lane change indicator
(see Turn signal) ........................54
Lights, warning and indicator ....23
air suspension ...........................23
anti-lock brakes (ABS) ....23, 117
brake ..........................................23
charging system ........................23
safety belt .................................23
service engine soon ..................23
traction control off ...................23
turn signal indicator .................23
Lubricant specifications ...........218
M
Manual transmission .................125
lubricant specifications ..........218
Mirrors .........................................61
fold away ...................................63
heated ........................................62
side view mirrors (power) .......61
O
Odometer .....................................28
P
Paint chips, repairing ...............163
Parking brake ....................100, 106
warning light .............................23
Power door locks ........................67
Power mirrors .............................61
Power point .................................59
Power steering ..........................189
fluid, checking and adding ....189
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