2004 FORD F650 suspension

Inspect air intake piping
•Check for accumulation of salt deposits (where applicable). If present,
disassemble and clean the complete air intake piping system. If the
intake piping is pitted, use RTV silicone to seal joints against leakage.
•Check for loose hoses and clamps.
•Check for ruptured or collapsed hoses.
•Check air cleaner housing for cracks.
ELECTRICAL SYSTEM INSPECTIONS
Periodically inspect electrical connectors on the outside of the cab, on
the engine and frame for corrosion and tightness. Exposed terminals
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 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 assure 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.
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
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•Check that torque rod mounting fasteners are tight.
•Check to be sure the suspension alignment is maintained at all time.
•Check U-bolts after the chassis has been operating under load for
1,600 km (1,000 miles) or six months, whichever comes first, the
U-Bolt nuts must be re-torqued. The U-Bolt nuts thereafter must be
re-torqued every 58,000 km (36,000 miles). The U-Bolt and nut
threads and seats should be cleaned and lubricated to assure a“like
new”condition when re-torquing.
Note:See theU-Bolt Nut Torquechart later in this section.
Supporting your vehicle for service
When performing service repairs on your vehicle, first prepare the
vehicle by doing the following:
1. Park the vehicle on a level concrete floor.
2. Set the parking brake and block the wheels to prevent the vehicle
from moving.
3. Select a jack (floor jack preferred) with a rated capacity sufficient to
lift and hold up the vehicle.
4. Raise the vehicle with the jack applied to the axle(s). DO NOT use the
bumper as a lifting point.
5. Support the vehicle with floor stands under the axle(s). If the axle or
the suspension are being serviced, support the vehicle with floor stands
under the frame side-members, preferably between the axles.
Do not use a jack when working under a vehicle. It may give
way, causing the vehicle to fall and result in property damage,
personal injury or death. Always use floor stands to support the
vehicle.
FRAME AND TOW HOOKS
Your vehicles chassis is manufactured with frame rails of either mild
carbon steel, or HSLA steel. Each must be handled in a specific manner
to assure maximum service life. Before attempting frame repair or
modification, consult the service manual or your dealer.
It is important, particularly on vehicles where the tow hooks are used
frequently to inspect the front and rear tow hooks for damage or a loose
mounting.
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
196

U-BOLT NUT TORQUE
U-bolt diameter (nominal) (all
spring suspensions)U-bolt diameter (nominal)
N.m Ft. lbs.
IROS Air w/15,500 lb. axles and
less353–407 260–300
IROS Air w/ greater than 15,500
lb. axles502–542 370–400
Hendrickson 23,000 lb. axle 502–542 370–400
Air suspension U-bolt checks and re-torquing procedures
1. Inspect the threads of the U-bolt and nut for rust and debris. Clean
the threads if contaminated.
2. Using a torque wrench, determine if any nuts can be turned with a
force below the specified torque.
3. Using the lowest discovered torqued nut as a starting point, retighten
the nuts using the sequence listed underAir suspension U-bolt and
U-bolt nut installation.
Air suspension U-bolt and U-bolt nut installation
1. Inspect the threads of the U-bolt and nut for rust and debris. Clean
the threads if contaminated.
2. Install the U-bolts and nuts and torque the nuts to 20 N.m. (15 ft.
lbs.), using a diagonal pattern.
3. Re-torque the nuts to 136 N.m. (100 ft. lbs.), using a diagonal pattern.
4. Re-torque the nuts to 271 N.m. (200 ft. lbs.), using a diagonal pattern.
5. Re-torque the nuts to 542 (400 ft. lbs.), using a diagonal pattern. (For
vehicles equipped with 14ACC, 14 ADN and 14ADP axles, do not use
Step 6.)
6. Re-torque the nuts to 576 N.m. (425 ft. lbs.), using a diagonal pattern.
(For vehicles equipped with 14ACC, 14 ADN and 14ADP axles.)
7. Use the same diagonal pattern with each U-bolt nut re-torque.
Spring U-bolt checks
Check U-bolt nuts and re-torque every 58,000 km (36,000 miles) after
initial 1,600 km (1,000 mile) re-torque. The U-bolt and nut threads and
seats should be cleaned and lubricated to assure peak condition when
re-torqued.
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
197

Check every oil
changeOil change
intervals are as follows:
Power Stroke - 10,000 ;
Caterpillar - 15,000 ;
Cummins - 15,000
(refer to the Caterpillar
and Cummins service
manuals for further
instructions and
information)Engine system
Check the engine cooling system - hoses, clamps and protection
Inspect the drive belts
Exhaust system
Inspect the entire exhaust system (including the inlet pipe(s),
muffler(s), outlet pipe(s), clamps and fasteners) for holes,
leakage, breakage, corrosive damage and separation from other
components. Adjust, service or replace with the same or the
equivalent part. (Also a noise emission control service)
Suspension system
Lubricate the front and rear spring pins
Tighten the front and rear spring U-bolts to the specified torque
Driveline and rear axle system
Lubricate the U-joints and the slip yoke
Brake system
Lube the air brake foot control valve, hinge and roller
Inspect the drum brake linings through the inspection holes
Lubricate the brake camshafts (air brakes)
Lubricate the brake slack adjuster (air brakes)
Lubricate rear caliper slide rails
Inspect the disc brake pads and the piston boots (hydraulic
brakes)
Clutch system
Lubricate the clutch release cross shaft and all linkages
Check the clutch fluid
Fuel system
Drain the accumulated water or sediment from the fuel tank(s)
Steering system
Lubricate the steering shaft(s), U-joints and splines when
equipped with grease fittings
Lubricate the front axle spindle pins
Lubricate the steering linkage when equipped with grease fittings
Grease the power steering gear output shaft
* Coolant protection checks should be made just prior to the onset of freezing weather,
where applicable. If coolant is dirty or rusty in appearance, the system should be drained,
flushed and refilled with the prescribed solution of cooling system fluid and water. Use only
permanent type coolant that meets Ford specifications WSS-M97B51-A1. See the engine
manufacturer’s operating guide for supplemental corrosion inhibitor specifications.
2004 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
230

A
Air conditioning ..........................43
manual heating and air
conditioning system .................43
Air suspension ...........................112
Anti-lock brake system
(see Brakes) ..............................110
Audio system
(see Radio) ................28, 30, 33, 37
Automatic transmission ............115
fluid, adding ............................181
fluid, checking ........................181
fluid, refill capacities ..............218
fluid, specification ..................207
Auxiliary power point .................52
Axle ............................127, 160, 198
lubricant specifications ..........207
refill capacities ........................217
B
Battery .......................................176
charging system warning
light ............................................20
jumping a disabled battery ....143
voltage gauge ............................24
BeltMinder ...................................73
Brakes ......................91–92, 97, 160
adjustment ..............................163
anti-lock ...........................110–111
anti-lock brake system (ABS)
warning light .....................20, 111
brake warning light ..................20
fluid, checking and
adding ..............................163, 175
fluid, specifications .................207
parking ................93–94, 100, 164
Bulbs ............................................47C
Cassette tape player ...................37
Catalytic converter
(see Emission control) .............183
CD-single premium .........28, 30, 33
Cell phone use ............................52
Child safety restraints ................78
child safety belts ......................78
Child safety seats ........................81
attaching with tether straps ....85
in front seat ..............................83
in rear seat ................................83
tether anchorage hardware .....85
Child safety seats - booster
seats .............................................79
Cleaning your vehicle
chrome and aluminum parts..155
engine compartment ..............155
exterior ....................................157
instrument panel ....................156
interior .....................................156
interior trim ............................156
plastic parts ............................156
washing ....................................154
waxing .....................................154
wheels ......................................155
Climate control (see Air
conditioning or Heating) ......42–43
Clutch ................................119, 180
adjusting ..................................180
fluid ..........................................180
operation while driving ..........119
specifications ..........................207
Controls
power seat .................................66
Coolant ......................................170
checking and adding ..............170
2004 F650/750(f67)
Supplement
USA English(fus)
Index
258

H
Hazard flashers .........................137
Headlamps ...................................45
aiming ........................................46
daytime running lights .............45
flash to pass ..............................45
high beam .................................45
warning chime ..........................20
Heating ..................................42–43
heater only system ...................42
manual heating and air
conditioning system .................43
Hood ..........................................165
I
Ignition
chime .........................................20
Infant seats (see Safety seats) ..81
Instrument panel
cleaning ...................................156
lighting up panel and
interior .......................................46
J
Jump-starting your vehicle ......143
K
Keys
key in ignition chime ...............20
L
Lamps
bulb replacement
specifications chart ..................47
cargo lamps ...............................46
daytime running light ...............45headlamps .................................45
headlamps, flash to pass ..........45
high beams ................................45
instrument panel, dimming .....46
interior lamps ...........................47
replacing bulbs ...................47–49
Lane change indicator
(see Turn signal) ........................46
Lights, warning and indicator ....20
air suspension ...........................20
anti-lock brakes (ABS) ....20, 111
brake ..........................................20
charging system ........................20
safety belt .................................20
service engine soon ..................20
traction control off ...................20
turn signal indicator .................20
Lubricant specifications ...........207
M
Maintenance and Care ..............226
Manual transmission .................121
lubricant specifications ..........207
Mirrors .........................................54
fold away ...................................56
heated ........................................55
side view mirrors (power) .......54
O
Odometer .....................................24
P
Paint chips, repairing ...............155
Parking brake ................93–94, 100
warning light .............................20
Power door locks ........................62
Power mirrors .............................54
2004 F650/750(f67)
Supplement
USA English(fus)
Index
260

Power point .................................52
Power steering ..........................178
fluid, checking and adding ....179
fluid, refill capacity ................218
fluid, specifications .................207
Power Windows ...........................53
R
Radio ..........................28, 30, 33, 37
Relays ........................................141
Remote entry system
locking/unlocking doors ...........62
Roadside assistance ..................136
S
Safety belts (see Safety
restraints) ..............................68–70
Safety defects, reporting ..........153
Safety restraints ....................68–70
belt minder ...............................73
cleaning the safety belts ..........77
extension assembly ..................77
for adults .............................69–70
for children ...............................78
lap belt ......................................72
warning light and
chime .............................20, 72–73
Safety seats for children ............81
Seat belts
(see Safety restraints) ...............68
Seats ............................................63
child safety seats ......................81
heated ........................................67
Servicing your vehicle ..............226
Special notice ................................5Specification chart,
lubricants ...................................207
Speed control ..............................56
Speedometer ...............................24
Starting your vehicle ..................86
jump starting ..........................143
preparing to start your
vehicle .......................................86
Steering .....................................178
Steering wheel
controls ................................51, 56
tilting .........................................51
Suspension ........................112, 195
T
Tachometer .................................24
Temperature control
(see Climate control) ...........42–43
Tires
checking the pressure ............205
Towing
wrecker ....................................146
Traction control
off light ......................................20
Transmission .....................115, 121
automatic operation ...............115
fluid, checking and adding
(automatic) .............................181
fluid, checking and adding
(manual) .................................181
fluid, refill capacities ..............218
lubricant specifications ..........207
manual operation ....................121
Turn signal ..................................46
2004 F650/750(f67)
Supplement
USA English(fus)
Index
261