brake FORD F750 2012 12.G User Guide

Rear of vehicle
Air/Electric linesVerify air hoses and electrical line insulation are
not cut, cracked, chafed or worn. Listen for
audible air leaks. Verify air and electrical lines are
not tangled, crimped or pinched or being dragged
against any truck parts. None of the air or
electrical line should be spliced or taped. Inspect
for corrosion on pins and in electrical sockets to
ensure continuity and reduced heat build-up
potential.
Deck plateVerify deck plate is clean, securely bolted to the
frame and clear of loose objects.
Signal/Brake
lightsVerify both brake lights illuminate when the
brake pedal is applied, each signal flashes and
that four-way flashers work properly.
Lights, reflectorsVerify all lights illuminate and are clean,
reflectors are clean, unbroken and of proper color
(red on rear, amber elsewhere) and that running
lights are also clean and unbroken. Rear running
lights must be inspected separately from signal,
flasher and brake lights.
Tractor - coupling system
Mounting boltsInspect for loose or missing mounting brackets,
clamps, bolts or nuts. Both fifth-wheel and slide
mounting must be solidly attached.
PlatformInspect for cracks or breaks in the platform
structure.
Safety latchVerify safety latch is engaged.
Release armVerify safety latch is in the engaged position and
that any safety latch is in place.
Kingpin/ApronVerify kingpin is not bent or worn, the apron lies
flat on the fifth-wheel skid plate and that the
visible part of the apron is not bent, worn,
cracked or broken.
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Rear suspension
SpringsInspect for broken or shifted leaves or leaves that
are in contact with (or nearly contacting) a tire,
rim, brake drum, frame or body component.
Inspect for missing or broken leaves in the leaf
spring.
Spring mountsInspect for cracked or broken spring hangers,
broken, missing or loose bolts, missing or
damaged bushings, broken, loose or missing axle
mounting parts.
Torsion, shocksVerify torsion arm is not cracked, broken or
missing. Inspect the shock absorber for cracks or
leaks; there should be no missing or broken
mounting bolts or worn bushings.
Rear brakes
HosesInspect for cracked, worn or frayed hoses. Verify
all couplings are secured.
ChambersVerify brake chambers are not cracked or dented
and that they are securely mounted.
Slack adjusterInspect for broken, loose or missing parts. The
angle between the push rod and adjuster arm
should be approximately 90° when the brakes are
applied. When pulled by hand, the push rod
should not move more than approximately 1 inch
(2.5 cm).
DrumVerify there are no cracks, dents or holes, loose
or missing bolts and the brake linings are not
worn, dangerously thin or contaminated by
lubricant.
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Rear wheels
SpacersVerify dual wheels are evenly separated and that
tires are not touching one another.
RimsInspect for damaged or bent rims. Rims should
not have welding repairs and no rust trails that
indicate it is loose on the wheel.
Lug nutsVerify 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. The 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
inspect 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.
Inspect the transmission fluid level and shift linkage for proper
operation.
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when you start your vehicle to make sure the bulb works. If any light
remains on after starting the vehicle, refer to the respective system
warning light for additional information.
Note:Some warning lights are
reconfigurable telltale (RTT)
indicator lights and illuminate in the
message center. These lights
function the same as the other
warning lights.
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 is also illuminated.
Brake system warning light:To
confirm the brake system warning
light is functional, it momentarily
illuminates when the ignition is
turned to the on position when the
engine is not running, or in a
position between on and start, or by
applying the parking brake when the
ignition is turned to the on position.
If the brake system warning light does not illuminate at this time, seek
service immediately from your authorized dealer. Illumination after
releasing the parking brake indicates low brake fluid level and the brake
system should be inspected immediately by your authorized dealer.
WARNING:Driving a vehicle with the brake system warning
light on is dangerous. A significant decrease in braking
performance may occur. It takes you longer to stop the vehicle. Have
the vehicle checked by your authorized dealer. Driving extended
distances with the parking brake engaged can cause brake failure and
the risk of personal injury.
ABS
Instrument Cluster
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Low fuel (RTT) (gasoline engine
only):Illuminates when the fuel
level in the fuel tank is at, or near,
empty.
Parking brake warning:
Momentarily illuminates when the
ignition is turned to the on position
and the engine is off. Also
illuminates when the parking brake
is engaged. If the parking brake
warning lamp does not illuminate at
these times, seek service
immediately.
Vehicles equipped with the Power Park Parking Brake option:If
after setting the parking brake on your vehicle the park brake warning
lamp begins to blink, this may indicate a failure in the parking brake
system. Seek service from your dealer immediately.
Powertrain malfunction/Reduced
power/Electronic throttle
control (RTT) (gasoline engine
only):Illuminates when the engine
has defaulted to a “limp-home” operation or when a transmission
problem has been detected and shifting may be restricted. If the light
remains on, have the system serviced immediately by your authorized
dealer.
Safety belt:Illuminates to remind
you to fasten your safety belt. A
Belt-Minderchime also sounds to
remind you to fasten your safety
belt. Refer to theSeating and
Safety Restraintschapter to activate/deactivate the Belt-Minderchime
feature.
P
Instrument Cluster
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Traction control (if equipped)
(diesel engine only):Illuminates
and flashes slowly if the Off Road or
Mud/Snow mode is selected.
Illuminates and flashes rapidly
during a traction control event.
Traction control (if equipped)
(gasoline engine only):
Illuminates when the traction
control is active. If the light remains
on, have the system serviced
immediately, refer to theDrivingchapter for more information.
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.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
Wait to start (diesel engine
only):Illuminates when the air
intake heater is in operation and
special starting procedures are
required. Refer toStartingin theDrivingchapter.
WARNING:If equipped with an air intake heater, DO NOT use
ether or any other starting fluids. The use of starting fluids
(ether) in an engine equipped with an air intake heater could result in
damage and/or personal injury.
Instrument Cluster
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System warnings
PARK BRAKE
ENGAGEDDisplays when the parking brake is set, the
engine is running and vehicle speed is higher
than 3 mph (5 km/h). If the message stays on
after the parking brake is released, contact
your authorized dealer as soon as possible.
CHECK BRAKE
SYSTEMDisplays when a fault is detected by the ABS
module.
CHECK CHARGING
SYSTEMDisplays when the electrical system is not
maintaining proper voltage. If you are
operating electrical accessories when the
engine is idling at a low speed, turn off as
many of them as soon as possible. If the
warning stays on or comes on when the engine
is operating at normal speeds, contact your
authorized dealer as soon as possible.
BRAKE FLUID
LEVEL LOWIndicates the brake fluid level is low and the
brake system should be inspected immediately.
Refer toBrake fluidin theMaintenance and
Specificationschapter.
System warnings alert you to possible problems or malfunctions in your
vehicle’s operating systems.
In the event multiple warnings exist, the message center cycles the
display to show each one for four seconds.
The message center displays the last selected feature if there are no
more warning messages.
Types of messages and warnings:
•Some messages appear briefly to inform you of something you may
need to take action on or be informed of.
•Some messages appear once and then again when the vehicle is
restarted.
•Some messages reappear after clearing or being reset if a problem or
condition is still present and needs your attention.
•Some messages can be acknowledged and reset by pressing RESET.
This allows you to use the full message center functionality by clearing
the message.
Instrument Cluster
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INTERIOR LAMPS
Map lamps (if equipped)
To turn on the map lamps, press the
control next to each lamp. The
dome lamp turns on when:
•any door is opened,
•any of the remote entry controls
are pressed and the ignition is
off.
EXTERIOR LAMPS
Bulb inspection
It is a good safety practice to check
operation of headlamps, parking
lamps, turn signals, clearance and
marker lamps, instrument panel and
control lamps each day.
Using the right bulbs
Function Bulbs Trade number
Headlamps 2 H6054
Front turn signal lamps 2 1157
Front sidemarker/Park lamps 2 (amber) 194
Brake/Tail/Stop/Rear turn
signal/License lamps1 bulb each
side1157
Back-up lamps 2 1156
Front clearance and identification
lamps5 194
Dome lamp 1 105
To replace all instrument panel lights - see your dealer
Lights
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2. Remove the four screws from the
lamp assembly.
3. Carefully lower the lamp assembly
and pull the bulb socket straight out
of the lamp assembly.
4. Carefully pull the bulb straight
out of the socket and push in the
new bulb.
5. To complete installation, follow
the removal procedure in reverse order.
Replacing front clearance and identification lamp bulbs
To change the cab marker bulbs:
1. Make sure the headlamp control
is in the
position, then remove
the screw and lens from the lamp
assembly.
2. Carefully pull the bulb straight
out of the socket and push in the
new bulb.
3. Install the lens on lamp assembly
with screw.
Replacing brake/tail/rear turn signal/back-up/license plate lamp bulbs
The brake/tail/turn
signal/back-up/license plate lamp
bulbs are located in the same
portion of the tail lamp assembly.
Follow the same steps to replace
any of these bulbs:
1. Make sure the headlamp control
is in the
position and the turn
signals are off, then remove the four
screws and the lamp lens from lamp
assembly.
2. Carefully pull the bulb straight out of the socket and push in the new
bulb.
3. Install the lens on the lamp assembly with the four screws.
Lights
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Note:
•Vehicle speed may vary momentarily when driving up and down a
steep hill.
•If the vehicle speed increases above the set speed on a downhill, you
may want to apply the brakes to reduce the speed.
•If the vehicle speed decreases more than 10 mph (16 km/h) below
your set speed on an uphill, your speed control will disengage.
Disengaging speed control
To disengage speed control, press the brake pedal. Disengaging speed
control will not erase the previous set speed.
Resuming a set speed
Press and release RES. This will automatically return the vehicle to the
previously set speed.
Increasing speed while using speed control
To increase the set speed:
•Press and hold SET/ACCEL until you get to the desired speed, then
release. You can also use SET/ACCEL to operate the tap-up function.
Press and release SET/ACCEL to increase the vehicle set speed in
1 mph (1.6 km/h) increments.
•Use the accelerator pedal to get to the desired speed. When the
vehicle reaches that speed, press and release SET/ACCEL.
Reducing speed while using speed control
To reduce the set speed:
•Press and hold COAST until you get to the desired speed, then
release. You can also use COAST to operate the tap-down function.
Press and release COAST to decrease the vehicle set speed in 1 mph
(1.6 km/h) increments.
•Press the brake pedal until the desired vehicle speed is reached, then
press and release SET/ACCEL.
Turning off speed control
To turn off the speed control, press OFF or turn off the ignition.
Note:When you turn off the speed control or the ignition, your speed
control set speed memory is erased.
Driver Controls
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