2004 FORD F750 ABS

Front of vehicle
Lights:Make sure all lights illuminate and are clean.
Make sure headlights function on both high
and low beams. Make sure reflectors are clean
and unbroken and of proper color (red on
rear, amber elsewhere). Make sure the running
lights are also clean and unbroken. Rear
running lights must be checked separately
from signal, flasher and brake lights.
Steering gear:Look for: missing or loose fasteners, power
steering fluid leaks and damage to power
steering hoses.
Steering linkage:Make sure connecting links, arms and rods are
not worn or cracked; joints, sockets and boot
seals are not worn or loose and that there are
no loose or missing cotter keys, nuts or bolts.
Tow hooks:Front and rear tow hooks should be inspected
for damage or loose mounting. This is
particularly important on vehicles where tow
hooks are frequently used.
Front suspension
Spring:Check for missing, broken or shifted leaves or
leaves that are in contact, or nearly contacting
a tire, rim, brake drum, frame or body
components.
Spring mount:Check/Inspect spring hangers, bolts, bushings,
axle mounting bolts and nuts for cracks,
breaks, wear, damage, tightness and correct
component quality.
Shock absorber:Check for cracks, leaks and missing or broken
bolts or bushings.
Note:Never apply grease to spring pads.
Do not operate the vehicle if any suspension conditions listed in
theFront suspensionchart are evident. Loss of steering or
suspension could result in property damage, personal injury or death.
2004 F650/750(f67)
Supplement
USA English(fus)
Vehicle inspection guide
13

Rear springs
Springs:Check for broken or shifted leaves or leaves
that are in contact, or nearly contacting a tire,
rim, brake drum, frame or body components.
Check for missing or broken leaves in the leaf
spring.
Spring mounts:Check for cracked or broken spring hangers,
broken, missing or loose bolts, missing or
damaged bushings, broken, loose or missing
axle mounting parts.
Torsion, shocks:Make sure torsion arm is not cracked, broken
or missing. Check the shock absorber for
cracks or leaks; there should be no missing or
broken mounting bolts or worn bushings.
Rear brakes
Hoses:Checked for cracked, worn or frayed hoses.
Make sure all couplings are secured.
Chambers:Make sure brake chambers are not cracked or
dented and that they are securely mounted.
Slack adjuster:Check for broken, loose or missing parts; the
angle between the push rod and adjuster arm
should be approximately 90 degrees when the
brakes are applied. When pulled by hand, the
push rod should not move more than
approximately 2.5 cm (one inch).
Drum:Make sure there are no cracks, dents or holes
and no loose or missing bolts. Make sure brake
linings are not worn or dangerously thin or
contaminated by lubricant.
2004 F650/750(f67)
Supplement
USA English(fus)
Vehicle inspection guide
17

Brake reserve system warning
(if equipped):Illuminates to
indicate normal Hydromax booster
reserve system activation when the
engine is OFF and the service brake
pedal is applied.
This light may also illuminate momentarily if the engine is running and
the driver turns the steering wheel fully in one direction while braking.
If the light remains on while the engine is running, this indicates
inadequate hydraulic booster pressure or reserve pump system failure.
Stop the vehicle safely as soon as possible and seek service immediately.
Brake system warning light:To
confirm the brake system warning
light is functional, this light will
momentarily illuminate when the
ignition is turned to the ON position when the engine is not running. If
the brake system warning light does not illuminate at this time, seek
service immediately from your dealership. Illumination after starting the
vehicle indicates a pressure differential in the master cylinder and the
brake system should be inspected immediately by your dealership.
If equipped with an air brake system, the warning light stays on until the
air pressure builds up to 414 kPa (60 psi). If the air pressure drops
below 414 kPa (60 psi) during operation, the remaining brake system is
still operational but the stopping distance will be greater.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your dealer immediately.
Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately. Normal
braking is still functional unless the brake warning light also is
illuminated.
BRAKE
ABS
2004 F650/750(f67)
Supplement
USA English(fus)
Instrumentation
21

Trailer ABS brake system (if
equipped):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.
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 brake warning
lamp does not illuminate at these
times, seek service immediately.
Safety belt:Reminds you to fasten
your safety belt. A chime will also
sound to remind you to fasten your
safety belt.
Check trans (Allison automatic
transmission):The lamp will
illuminate for several seconds after
the ignition is turned to the ON
position. Illumination of this light indicates that a problem has been
detected and shifting may be restricted. Depending upon the severity of
the problem, the read-out digit on the shifter display may be blank.
Operation may continue in order to reach service assistance. The ECU
may not respond to shift selector requests, since operating limitations
are being placed on the transmission, i.e. upshifts and downshifts may be
restricted. Direction changes will not occur.
Refer to the Transmission Operator’s Manual for more information.
Range inhibit:Illuminates when
the transmission is not engaged in
the selected gear. The warning light
will go off when the gearshift lever
is adjusted in to the appropriate gear.
Refer to the Transmission Operator’s Manual for more information.
P
BRAKE
CHECK
TRANS
RANGE
INHIBIT
2004 F650/750(f67)
Supplement
USA English(fus)
Instrumentation
22

Actuation of trailer park (emergency) or tractor bobtail position
To actuate the trailer brakes only, pull out the trailer air supply knob (1).
The trailer brakes are now applied whether emergency or spring brakes
are used on the trailer.
This mode is also used when the tractor or truck with trailer is used
during bobtail operation.
ANTI-LOCK BRAKE SYSTEM (ABS)
Four-wheel anti-lock brake system (ABS)
A noise from the hydraulic pump motor and pulsation in the pedal may
be observed during ABS braking events. Pedal pulsation coupled with
noise while braking under panic conditions or on loose gravel, bumps,
wet or snowy roads is normal and indicates proper functioning of the
vehicle’s ABS. If the vehicle has continuous vibration or shudder in the
steering wheel while braking, the vehicle should be inspected by a
qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensating for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during hard braking with loss of front braking
traction.
1
2
2004 F650/750(f67)
Supplement
USA English(fus)
Driving
110

ABS warning lamp
The
ABSwarning lamp in the instrument cluster momentarily illuminates
when the ignition is turned on and the engine is off. If the light does not
illuminate momentarily at start up, remains on after the vehicle reaches
10 to 15 km/h (5 to 10 mph), or continues to flash, the ABS needs to be
serviced.
With the ABS light on, the anti-lock brake system is disabled and normal
braking is still effective unless the brake warning light also remains
illuminated. (If your parking brake warning lamp illuminates, have your
vehicle serviced immediately).
Using ABS
•In an emergency or when maximum efficiency from the ABS is
required, apply continuous full force on the brake. The ABS will be
activated immediately, thus allowing you to retain full steering control
of your vehicle and, providing there is sufficient space, will enable you
to avoid obstacles and bring the vehicle to a controlled stop.
•The ABS does not decrease the time necessary to apply the brakes or
always reduce stopping distance. Always leave enough room between
your vehicle and the vehicle in front of you to stop.
•We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
TRACTION CONTROL(IF EQUIPPED)
Your vehicle may be equipped with a Traction Controlsystem. This
system helps you maintain the stability and steerability of your vehicle,
especially on slippery road surfaces such as snow- or ice-covered roads
and gravel roads, by reducing engine power and/or selectively applying
the rear brakes. The system will allow your vehicle to make better use of
available traction in these conditions.
Note:The traction control system will not apply the brakes when the
vehicle speed is above 40 km/h (25 mph).
During Traction Controloperation,
the traction control light in the
instrument cluster will flash and the
engine will not“rev-up”when you
push further on the accelerator. This
is normal system behavior and should be no reason for concern. If the
traction control light does not flash or stays illuminated, the system is
not functioning.
2004 F650/750(f67)
Supplement
USA English(fus)
Driving
111

Fuse/Relay
LocationFuse Amp
RatingFuse Description
F11—Not used
F12—Not used
F13 10A* Parking brake
F14—Not used
F15 7.5A* Body builder - trailer adapter stoplamps
F16 5A* WABCO hydraulic ABS
F17—Not used
F18 10A* Fuel transfer pump
F19—Not used
F20 10A* Engine ECM power relay (6.0L Power Stroke
engine)
F21 10A* Control for Hydro-max motor
F22 10A* V8 engine IDM2 logic power
F23—Not used
F24—Not used
F101 30A** Air ABS relay, Hydraulic modulator relay
F102 20A** Ignition switch to customer access
F103 50A** Ignition switch, Central Junction Box (CJB)
fuses 8, 9, 10, 11, 19, 20, 23, 24, 25, 29, 30,
31
F104 20A** Power point
F105 20A** Door lock switches
F106 30A** Main light switch, Multifunction switch, CJB
fuses 16, 26 and 28, Headlamps, DRL relays
F107 50A** CJB fuses 1, 2, 3, 4, 12, 13, 14, 15
F108 40A** Fuel heater relay (Cummins engine)
F109 40A** Power window relay
F110—Not used
F111 30A** Park lamps relay, Park lamps
F112 40A** Blower motor relay, Blower motor
F113 30A** Heated seats
F114 25A** Hydraulic ABS ECU power
2004 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
139

Fuse/Relay
LocationFuse Amp
RatingFuse Description
F115 40A** Ignition switch, CJB fuse 21
F116 30A** Turn relays and back-up lamp relay
F117 20A** Stoplamp relay (Caterpillar and Cummins
engine)
F118 60A** Trailer tow left, right and ABS fuse block
(Hydraulic brake vehicles)
F119/F120 60A** Trailer tow fuse block, Stop/Tail/Marker
lamps
F121/F122 60A** Trailer tow fuse block (Air brake vehicles),
Left, right and ABS, Hydraulic HydroMax
pump motor fuse relay
R1–201—Washer pump relay
R2–202—Wiper speed relay
R3–203—Wiper run-park relay
R4–204—Crank inhibit relay (6.0L Power Stroke
engine)/Exhaust brake relay (Caterpillar and
Cummins engine)
R5–207—Drain valve heater relay
R6–205—RH stop/turn relay
R7–206—LH stop/turn relay
R8–208—Back-up lamps relay
R9–209—ECM ISO relay (6.0L Power Stroke engine)
or Stoplamp relay (Caterpillar and Cummins
engine)
FIR1–301—Fuel heater, Fuel heater-fuel transfer pump
FIR2–302—Park lamp relay
FIR3–303—Blower motor relay
FIR4–304—Air ABS relay, Hydraulic modulator relay
* Mini fuse **Maxi fuse
2004 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
140