2008 FORD F750 height

Pull handle out to move the seat
cushion forward or backward.
Rotate control to adjust seatback.
Pump handle to raise seat height.
Push handle full down to lower.
To reduce the risk of excess
slack in the belt system,
always adjust the seat height
before fastening the seat belt.
2008 F-650/750(f67)
Supplement
USA(fus)
Seating and Safety Restraints
64

Air-Ride seat without self-contained pump (if equipped)
Move handle to the left to move seat
forward or backward.
Push up on the switch to raise the
seat height.
Press down on the switch to lower
the seat height.
To reduce the risk of excess slack in the belt system, always
adjust the seat height before fastening the seat belt.
Press up on the switch to increase
the firmness (lumbar support) of
the seatback.
2008 F-650/750(f67)
Supplement
USA(fus)
Seating and Safety Restraints
66

Press down on the switch to reduce
the firmness (lumbar support) of
the seatback.
Air-Ride seat with self-contained pump (if equipped)
1.Chugger option:Dampens road vibrations and allows the seat to
move with the driver when unlocked.
To unlock, sit in the seat and slide the tab away from the seat (to the right)
To lock, sit in the seat and slide the tab toward the seat (to the left).
2.Seat adjuster:Lift up to move the seat forward or backward. Release
the bar to lock the seat in position.
3.Seat height adjuster:Pull the control up to raise the seat, push it
down to lower the seat.
To reduce the risk of excess slack in the belt system, always
adjust the seat height before fastening the seat belt.
4.Power lumbar:Press the top of the forward control to inflate the
lower lumbar support; press the bottom of the forward control to deflate
the lower lumbar support.
2008 F-650/750(f67)
Supplement
USA(fus)
Seating and Safety Restraints
67

Shorten and fasten the belt when
not in use.
Vehicle sensitive mode
The vehicle sensitive retractor allows free shoulder belt length
adjustment to your movements and locks in response to vehicle
movement. For example, if the driver brakes suddenly or turns a corner
sharply, or the vehicle receives an impact of approximately 5 mph
(8 km/h) or more, the combination safety belts will lock to help reduce
forward movement of the driver and passengers.
Front safety belt height adjustment
SuperCab and Crew Cab vehicles have safety belt height adjustments for
the driver and front outboard passenger. Adjust the height of the
shoulder belt so the belt rests across the middle of your shoulder.
2008 F-650/750(f67)
Supplement
USA(fus)
Seating and Safety Restraints
71

To lower the shoulder belt height, push the button and slide the height
adjuster down. To raise the height of the shoulder belt, slide the height
adjuster up. Pull down on the height adjuster to make sure it is locked in
place.
Position the safety belt height adjusters so that the belt rests
across the middle of your shoulder. Failure to adjust the safety
belt properly could reduce the effectiveness of the seat belt and
increase the risk of injury in a collision.
Safety belt extension assembly
If the safety belt is too short when fully extended, there is an eight inch
(20 cm) safety belt extension assembly that can be added (part number
611C22). This assembly can be obtained from your dealer at no cost.
Use only extensions manufactured by the same supplier as the safety
belt. Manufacturer identification is located at the end of the webbing on
the label. Also, use the safety belt extension only if the safety belt is too
short for you when fully extended.
Do not use extensions to change the fit of the shoulder belt
across the torso.
Safety belt maintenance
Inspect the safety belt systems periodically to make sure they work
properly and are not damaged. Inspect the safety belts to make sure
there are no nicks, tears or cuts. Replace if necessary. All safety belt
assemblies, including retractors, buckles, front seat belt buckle
assemblies, buckle support assemblies (slide bar-if equipped), shoulder
belt height adjusters (if equipped), shoulder belt guide on seatback (if
equipped), child safety seat tether anchors, and attaching hardware,
should be inspected after a collision.
Ford Motor Company recommends that all safety belt assemblies
used in vehicles involved in a collision be inspected for proper
function and replaced, if necessary. Safety belt assemblies not in use
during a collision should also be inspected and replaced if either
damage or improper operation is noted.
2008 F-650/750(f67)
Supplement
USA(fus)
Seating and Safety Restraints
73

Aggressive driving in any road conditions can cause you to lose
control of your vehicle increasing the risk of severe personal
injury or property damage. The occurrence of a Traction Control
event is an indication that at least some of the tires have exceeded
their ability to grip the road; this may lead to an increased risk of loss
of vehicle control, vehicle rollover, personal injury and death. If you
experience a severe road event, SLOW DOWN.
AIR SUSPENSION (IF EQUIPPED)
Note:The vehicle must not be operated without air in the suspension
springs. Operating the vehicle without air in the air suspension springs
will damage the suspension, degrade ride performance and may cause
property damage.
The suspension system automatically adjusts to different loads to
maintain a constant frame height. The system allows for ease of vehicle
loading and provides improved vehicle ride and increased driver comfort.
Air suspension dump switch
The system is controlled by a switch
located on the instrument panel.
The switch will operate only when
the ignition is in the ACC
(Accessory) or IGNITION positions
and the air tanks have sufficient
pressure to fill the air springs. When
the ignition is turned off, the
suspension will remain in whatever
state it was last set.
Note:The suspension will dump air when the ignition is in the ACC or
IGNITION position, but will only fill when the ignition is in the IGNITION
position.
When the upper portion of the switch is pressed air supplied to the air
spring is exhausted, lowering the frame for loading. Pressing the lower
portion of the switch causes air to fill the air springs so the vehicle will
remain at normal ride height.
2008 F-650/750(f67)
Supplement
USA(fus)
Driving
113

such as the fuel sender, cranking motor, alternator and feed-through
studs should be cleaned and re-coated with a lubricant sealing grease
such as Motorcraft Silicone Brake Caliper Grease and Dielectic
Compound XG-3, or equivalent. This should include the ground cable
connector for batteries, engine and cab as well as the jump starting stud.
Accessory feed connections
Vehicle electrical systems are complex and often include electronic
components such as engine and transmission controls, instrument panels,
ABS, etc. While most systems operate on battery voltage (12 volts),
some systems can be as high as 90 volts or as low as five volts. Refer to
the Electrical Circuit Diagram Manuals, available from your vehicle’s
manufacturer, to ensure that any additional body lights and accessories
are connected to circuits that are both appropriate and not overloaded.
No modification should be made to any vehicle control system without
first contacting your dealer.
SUSPENSION INSPECTION
Note:Do not adjust air suspension height to any setting other than the
specified setting. Altering the height setting will change the driveline
angle and may result in unwarrantable component damage, such as
transmission component damage.
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 times.
•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.
2008 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
193

Fuel tanks
Standard tanks are listed as such; all other tanks available for your
vehicle are optional equipment.
Vehicle Tank type Gallons (Liters)
F-650 Low Profile (standard),
F-650 Dock HeightSingle, steel
rectangular35 (132)
F-650 Low Profile, F-650 Dock
Height (standard), F-750 Pick-up
and Delivery (standard), F-750
Severe Service (standard)Single, steel
rectangular45 (170)
F-650 Dock Height, F-750
Pick-up and Delivery, F-750
Severe ServiceSingle, steel
rectangular50 (189)
F-650 Low Profile, F-650 Dock
Height, F-750 Pick-up and
Delivery, F-750 Severe ServiceSingle, steel
rectangular65 (246)
F-650 Dock Height, F-750
Pick-up and Delivery, F-750
Severe ServiceSingle, steel
D-style65 (246)
F-650 Dock Height, F-750
Pick-up and Delivery, F-750
Severe ServiceSingle, steel
D-style80 (302)
F-650 Low Profile, F-650 Dock
Height, F-750 Pick-up and
Delivery, F-750 Severe ServiceDual, steel
rectangular25(LH)/45(RH)
(95[LH]/170[RH])
F-650 Low Profile, F-650 Dock
HeightDual, steel
rectangular35(RH)/45(LH)
(132[RH]/170[LH])
F-650 Low Profile, F-650 Dock
Height, F-750 Pick-up and
Delivery, F-750 Severe ServiceDual, steel
rectangular45/45 (170/170)
F-650 Dock Height, F-750
Pick-up and Delivery, F-750
Severe ServiceDual, steel
D-style50/50 (189/189)
2008 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
225