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ENTERING, EXITING AND/OR CLIMBING ON THIS VEHICLE
You must be careful and deliberate to minimize the possibility of personal
injury from a slip and fall when entering, exiting and/or climbing on this
vehicle. Always use the steps and assist handles before climbing. Do not
skip any steps or assist handles. Use three point contact at all times with
at least two feet and one hand or two hands and one foot firmly placed
during all phases of entering, exiting and/or climbing. Always keep your
shoe soles and hands clean. Keep the steps and assist handles free of
snow, ice, oil, grease, substances or debris. Be sure to use extra care in
bad weather. Avoid wearing thick gloves. Always perform trailer hook-up
while standing on the ground.
WARNING:Do not carry items while entering, exiting, and/or
climbing. Make sure you keep a firm grip. Always FACE the
VEHICLE STEP and HANDLE SYSTEM while climbing up and down.
Do not climb behind the cab unless you have three point contact with
a step and handle system at all times.
Introduction
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Engine starting (parking brake applied)
Air brake check:Check the air brakes in the following manner
(Chock the wheels, if necessary. Push in the
parking brake and on tractors, also push in the
tractor parking brake knob):
1. Check that the air compressor or governor
cut-out pressure is approximately 120 psi
(827 kPa).
2. Turn off the engine, then turn the key back
to the on position, without starting the engine.
3. Without the brake pedal applied, note the
air pressure drop for one minute. It should be
less than 2 psi (14 kPa) for single vehicles and
3 psi (21 kPa) for combination vehicles.
4. Press and hold the brake pedal with 90 psi
(621 kPa) or more and make sure there is no
more than a 3 psi (21 kPa) per minute leak;
for combination vehicles, no more than 4 psi
(28 kPa) per minute.
5. Pump the brake pedal to deplete the system
of air pressure. The warning light and chime
should activate at 57 psi (393 kPa).
6. Pump the brake pedal and make sure the
parking brake and trailer parking brake knobs
pop out at 20 psi (138 kPa) or higher.
Automatic
transmission fluid:With the engine idling at normal operating
temperature and the parking brake applied,
check the automatic transmission fluid. If fluid
needs to be added, place the transmission in
the appropriate gear as specified in the
transmission operator’s manual and refer to
Transmission fluidin theMaintenance and
Specificationschapter.
Vehicle Inspection Guide
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USA(fus)
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Rear brakes
Drum:Make sure there are no cracks, dents or holes
and no loose or missing bolts. Make sure brake
linings are not worn, dangerously thin or
contaminated by lubricant.
Rear wheels
Spacers:Make sure dual wheels are evenly separated
and that tires are not touching one another.
Rims:Check for damaged or bent rims. Rims should
not have welding repairs and no rust trails that
indicate it is loose on the wheel.
Lug nuts:Make sure all lug nuts are present and not
loose (look for rust trails around the lug nuts).
There should be no cracks radiating from the
lug bolt holes or distortion of the bolt holes.
Trailer
If you are pulling a trailer, an inspection of the trailer similar to that of
the tractor should be done. Such an inspection should follow trailer
manufacturer recommendations and should include at a minimum:
general condition, landing gear, doors, sides, lights, reflectors,
suspension, brakes, tires, wheels, cargo placement, stability and
tie-downs.
Transmission
If your vehicle is equipped with an automatic transmission, regularly
check the transmission’s neutral start switch. The engine should only
start in the N (Neutral) or P (Park) positions.
WARNING:If the unit starts in gear and/or the neutral start
switch is not functioning correctly, the vehicle may inadvertently
move which could result in property damage, personal injury or death.
Check the transmission fluid level and shift linkage for proper operation.
Vehicle Inspection Guide
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Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light also is illuminated.
Trailer anti-lock brake system
(ABS):Illuminates briefly when the
engine is powered-up and only when
a PLC trailer or a PLC diagnostic
tool is connected. If the light
remains on after the vehicle is
started, continues to flash or fails to
illuminate, have the system serviced
immediately.
Traction control (if equipped):
Illuminates and flashes slowly if the
Off Road or Mud/Snow mode is
selected and flashes rapidly during a
traction control event.
Safety belt:Reminds you to fasten
your safety belt. A Belt-Minder
chime will also sound to remind you
to fasten your safety belt. Refer to
theSeating and Safety Restraints
chapter to activate/deactivate the Belt-Minderchime feature.
Charging system:Illuminates when
the battery is not charging properly.
If it stays on while the engine is
running, there may be a malfunction
with the charging system. Contact your authorized dealer as soon as
possible. This indicates a problem with the electrical system or a related
component.
Check suspension (if equipped):
Illuminates when the air suspension
dump switch has been activated.
ABS
Instrument Cluster
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USA(fus)
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Telescoping mirrors (if equipped)
The telescoping feature allows the
mirror to extend approximately
2.75 inches (70 mm). This feature is
especially useful to the driver when
towing a trailer. Mirrors can be
manually pulled out or pushed in to
the desired telescopic position.
If equipped with PowerScope™
power telescoping mirrors, you can
simultaneously position both mirrors
using the power telescope switch
found on the door trim panel.
•To telescope the mirrors
outboard, press and hold the left
side of the power telescope
switch until the mirrors reach their desired position. When the end of
travel is reached, it is normal to hear the power telescoping motors
running as long as you continue to hold the switch.
•To telescope the mirrors inboard, press and hold the right side of the
power telescope switch until the mirrors reach their desired position.
Mirror-mounted side turn signal indicator (if equipped)
When the vehicle turn signals are
activated, the outer portion of the
mirror housing will blink amber.
The turn signal feature can be seen
by other drivers who may approach
from the rear of the vehicle.
Driver Controls
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Note:Installing an exhaust or auxiliary brake does not necessarily
protect the engine from exceeding maximum governed speed. The
primary brakes should be used to make sure the engine never exceeds
maximum governed speed under any conditions.
TRAILER BRAKE HAND CONTROL (IF EQUIPPED)
The hand control, located on the
right-hand side of the instrument
panel, is used to apply the trailer
service brakes which are
independent of the truck or tractor
service brakes.
WARNING:The hand
control should never be
used to apply the brakes when the
tractor and trailer are parked
unattended. Air may leak from the
system and the vehicle could
possibly move, resulting in
possible property damage,
personal injury or death.
The hand control operates a valve that provides gradual control of air
pressure applied; when the valve is only partially applied, the trailer
brakes can be overridden by pressing fully on the brake pedal.
To apply the trailer brakes using the hand control, move the lever
downward. The further the lever is pushed downward, the greater the air
pressure is applied to the brakes. The lever will remain in place until
manually moved.
To release the trailer brakes, move the lever upward completely.
Driving
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TRAILER AIR SUPPLY AND PARKING BRAKE MODULAR
CONTROLS (IF EQUIPPED)
The trailer air supply valve delivers air to the trailer supply and will
automatically pop out, shutting off the trailer supply, if pressure is
decreased to approximately 35 psi (249 kPa).
The parking brake controls the spring brakes on the tractor. When the
knob is pulled out it causes the trailer supply valve to pop out, applying
both the tractor and trailer parking brakes. The trailer brakes may be
independently released by pushing only the trailer air supply valve in.
Initial charge
With the air system completely discharged, both knobs (1 and 2) will be
out. When the air pressure reaches 70 psi (483 kPa) the trailer air
supply (1 – red knob) may be pushed in and should stay in charging the
trailer air system and releasing the trailer brakes.
TRAILER
AIR SUPPLY
NOT FOR PARKING
TO
TOPULL
SUPPLY
EVACUATE
PUSH
12 12
Driving
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The parking brake (2–yellow knob) can now be pushed in and supply air
to the tractor spring brakes, releasing them.
Normal driving position
With both knobs pushed in, air is then supplied to both trailer and
tractor spring brakes, and all brakes are released.
12
12
Driving
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