2006 FORD F650 brakes

Locks and Security 67
Keys 67
Locks 67
Seating and Safety Restraints 68
Seating 68
Safety restraints 74
Child restraints 83
Driving 91
Starting 91
Brakes 98
Air suspension 119
Transmission operation 121
Vehicle loading 136
Roadside Emergencies 143
Hazard flasher switch 144
Fuses and relays 144
Jump starting 151
Wrecker towing 155
Customer Assistance 159
Getting assistance outside the U.S. and Canada 161
Ordering additional owner’s literature 162
Reporting safety defects (U.S. only) 162
Cleaning 163
Cleaning your vehicle 163
Repairing paint chips 163
Underbody preservation 166
Table of Contents
2
2006 F-650/750(f67)
Supplement
USA(fus)

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 the air compressor or governor
cut-out pressure (approximately 120 psi [827
kPa]).
2. Cut-off the engine and turn the key back to
ON, 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 vehicle and
3 psi (21 kPa) for combination vehicles.
4. Depress 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
air pressure. The warning light and chime
should activate 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.
Parking brake:Check that the parking brake will hold the
vehicle by gently trying to pull forward with
the parking brake applied.
2006 F-650/750(f67)
Supplement
USA(fus)
Vehicle Inspection Guide
15

Front suspension
Spring:Inspect 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:Inspect spring hangers, bolts, bushings, axle
mounting bolts and nuts for cracks, breaks,
wear, damage and tightness.
Shock absorber:Inspect 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.
Front 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° when the brakes
are applied. When pulled by hand, the push
rod should not move more than approximately
one inch (2.5 cm).
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.
2006 F-650/750(f67)
Supplement
USA(fus)
Vehicle Inspection Guide
17

Rear springs
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° when the brakes
are applied. When pulled by hand, the push
rod should not move more than approximately
one inch (2.5 cm).
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.
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.
2006 F-650/750(f67)
Supplement
USA(fus)
Vehicle Inspection Guide
21

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 recommendation 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.
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.
2006 F-650/750(f67)
Supplement
USA(fus)
Vehicle Inspection Guide
22

Fuel gauge:Indicates
approximately how much fuel is left
in the fuel tank (when the ignition
is in the on position). If your vehicle
is equipped with dual fuel tanks, the
engine will draw fuel from the
passenger-side fuel tank only. With
dual fuel tanks, the vehicle will be
equipped with a fuel transfer pump system that will draw fuel from the
driver-side fuel tank and send fuel to the passenger-side fuel tank. The
passenger-side fuel tank must have fuel in it at all times otherwise the
vehicle may stall and may be difficult to re-start. The fuel gauge reads
the fuel level only from the passenger-side fuel tank.
Air filter restriction gauge:
Measures the vacuum inside the air
cleaner. The more the air cleaner is
restricted (dirty, clogged), the
higher the vacuum reading. Change
the air filter when the gauge reads
25 inches. After installation of the
new filter element, reset the gauge
to 0.
Air pressure gauge:All vehicles
equipped with air brakes have a
dual-pointer air gauge to indicate
the pressure in each brake circuit.
The green pointer indicates the air
pressure in the primary system and
the red pointer indicates the air
pressure in the secondary system.
When the pressure is too low for
normal brake operation (less than
60 psi [414 kPa]) and the ignition is
on:
•a warning buzzer will sound and
•a warning light will illuminate in the instrument cluster
0 30120 90 60
150AIR
PRESSURE
PSI
2006 F-650/750(f67)
Supplement
USA(fus)
Instrument Cluster
31

Do not drive the vehicle when the low air pressure buzzer is
sounding or the warning light is lit. These warnings indicate
there is not enough air pressure for the brake or suspension system to
operate properly.
Vehicles equipped with hydraulic brakes and an air compressor have a
single-pointer air gauge.
Note:This system doesnothave a low air pressure warning buzzer or a
low air pressure warning light.
2006 F-650/750(f67)
Supplement
USA(fus)
Instrument Cluster
32

To turn speed control off
Press OFF or turn off the ignition.
Once speed control is switched off,
the previously programmed engine
RPM will be erased.
Do not use the speed control in heavy traffic or on roads that
are winding, slippery, or unpaved.
To set a speed
Press SET +. If the vehicle is
moving, this will set the vehicle
speed. If the vehicle is stationary,
this will set the vehicle idle RPM.
If you drive up or down a steep hill, your vehicle speed may vary
momentarily slower or faster than the set speed; this is normal.
Speed control cannot reduce the vehicle speed if it increases above the
set speed on a downhill. If your vehicle speed is faster than the set
speed while driving on a downhill, you may want to shift to the next
lower gear or apply the brakes to reduce your vehicle speed.
If the vehicle speed falls below 30 mph (48 km/h) or engine RPM falls
below 1,000 RPM, your speed control will disengage; this is normal.
Pressing RESUME - will re-engage it.
Do not use the speed control in heavy traffic or on roads that
are winding, slippery, or unpaved.
CRUISE
RPM
OFF
2006 F-650/750(f67)
Supplement
USA(fus)
Driver Controls
64