2005 FORD F750 suspension

Fuse/Relay
LocationFuse Amp
RatingFuse Description
13 20A Radio, Cluster
14 10A Interior lamps
15 10A GEM, Interior lamp relay, Map lamps
16 15A High beams
17—Not used
18 5A Headlamp switch, GEM
19 15A Engine ECM (Caterpillar and Cummins
engines)
Engine ECM, Accel, Crank (6.0L Power
Stroke engine only)
20 15A Starter relay, GEM
21 10A Daytime Running Lamps (DRL)
22 15A Air solenoid 4–pack (Air horn, Air suspension
dump, Differential lock axle and Two-speed
axle)
23 10A Electronic flasher
24 15A Vacuum pump, Air dryer, ABS, Fuel
heater/Fuel transfer pump relay, Heated
drain valve, 6.0L Power Stroke Water In Fuel
(WIF) module
25 10A Blower motor relay
26 10A RH low beam headlamp
27—Not used
28 10A LH low beam headlamp
29 10A Cluster (Power, Warning lamps), Hydraulic
ABS relay, Air traction control
30 30A Not used
31 15A Allison transmissions
Relay 1—Interior lamps
Relay 2—Not used
Relay 3—Horn
Relay 4—One-touch down window
Relay 5—Not used
2005 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
142

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.
•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
1,000 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 assure a“like
new”condition when re-torquing.
Note:See theU-Bolt Nut Torquechart later in this section.
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
201

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 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.
U-BOLT NUT TORQUE
U-bolt diameter (nominal) (all spring
suspensions)U-bolt diameter
(nominal)
Ft. lbs. N•m
IROS Air w/15,500 lb. axles and less 260–300 353–407
IROS Air w/ greater than 15,500 lb. axles 370–400 502–542
Hendrickson 23,000 lb. axle 370–400 502–542
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
202

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 15 ft. lbs. (20
N•m), using a diagonal pattern.
3. Re-torque the nuts to 100 ft. lbs. (136 N•m), using a diagonal pattern.
4. Re-torque the nuts to 200 ft. lbs. (271 N•m), using a diagonal pattern.
5. Re-torque the nuts to 400 ft. lbs. (542 N•m), 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 425 ft. lbs (576 N•m), 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 36,000 miles (58,000 km) after
initial 1,000 miles (1,600 km) re-torque. The U-bolt and nut threads and
seats should be cleaned and lubricated to assure peak condition when
re-torqued.
PROPELLER SHAFT
At the regular lubrication interval, check the universal joints for any
evidence of wear or looseness. Should propeller shaft vibrations occur,
stop the vehicle immediately to avoid possible hazardous consequences
or damage to other components.
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
203

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
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.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
235

A
Air conditioning ..........................45
manual heating and air
conditioning system .................45
Air suspension ...........................115
Anti-lock brake system
(see Brakes) ..............................113
Audio system
(see Radio) ................30, 32, 35, 39
Automatic transmission ............118
fluid, adding ............................185
fluid, checking ........................185
fluid, refill capacities ..............223
fluid, specification ..................213
Auxiliary power point .................54
Axle ............................130, 164, 204
lubricant specifications ..........213
refill capacities ........................222
B
Battery .......................................180
charging system warning
light ............................................21
jumping a disabled battery ....147
voltage gauge ............................26
BeltMinder ...................................75
Brakes ............................93, 99, 164
adjustment ..............................167
anti-lock ...........................113–114
anti-lock brake system
(ABS) warning light .........21, 114
brake warning light ..................21
fluid, checking and adding ...167,
179
fluid, specifications .................213
parking ......................95, 102, 168
Bulbs ............................................49C
Cassette tape player ...................39
Catalytic converter
(see Emission control) .............188
CD-single premium .........30, 32, 35
Cell phone use ............................54
Child safety restraints ................80
child safety belts ......................80
Child safety seats ........................83
attaching with tether straps ....86
in front seat ..............................84
in rear seat ................................84
tether anchorage hardware .....86
Child safety seats - booster
seats .............................................80
Cleaning your vehicle
chrome and aluminum
parts .........................................159
engine compartment ..............159
exterior ....................................161
instrument panel ....................160
interior .....................................160
interior trim ............................160
plastic parts ............................160
washing ....................................158
waxing .....................................158
wheels ......................................159
Climate control (see Air
conditioning or Heating) ......44–45
Clutch ................................122, 184
adjusting ..................................184
fluid ..........................................184
operation while driving ..........122
specifications ..........................213
Controls
power seat .................................68
2005 F650/750(f67)
Supplement
USA English(fus)
Index
263

speedometer .............................26
tachometer ................................26
trip odometer ............................26
H
Hazard flashers .........................140
Headlamps ...................................47
aiming ........................................48
daytime running lights .............47
flash to pass ..............................47
high beam .................................47
warning chime ..........................21
Heating ..................................44–45
heater only system ...................44
manual heating and air
conditioning system .................45
Hood ..........................................169
I
Ignition
chime .........................................21
Infant seats
(see Safety seats) .......................83
Instrument panel
cleaning ...................................160
lighting up panel and
interior .......................................48
J
Jump-starting your vehicle ......147
K
Keys
key in ignition chime ...............21L
Lamps
bulb replacement
specifications chart ..................49
cargo lamps ...............................48
daytime running light ...............47
headlamps .................................47
headlamps, flash to pass ..........47
high beams ................................47
instrument panel, dimming .....48
interior lamps ...........................49
replacing bulbs ...................49–51
Lane change indicator
(see Turn signal) ........................48
Lights, warning and indicator ....21
air suspension ...........................21
anti-lock brakes (ABS) ....21, 114
brake ..........................................21
charging system ........................21
safety belt .................................21
service engine soon ..................21
traction control off ...................21
turn signal indicator .................21
Lubricant specifications ...........213
M
Maintenance and Care ..............231
Manual transmission .................123
lubricant specifications ..........213
Mirrors .........................................56
fold away ...................................58
heated ........................................57
side view mirrors (power) .......57
O
Odometer .....................................26
P
Paint chips, repairing ...............159
2005 F650/750(f67)
Supplement
USA English(fus)
Index
265

Parking brake ......................95, 102
warning light .............................21
Power door locks ........................64
Power mirrors .............................57
Power point .................................54
Power steering ..........................182
fluid, checking and adding ....183
fluid, refill capacity ................223
fluid, specifications .................213
Power Windows ...........................55
R
Radio ..........................30, 32, 35, 39
Relays ........................................141
Remote entry system
locking/unlocking doors ...........64
Roadside assistance ..................139
S
Safety belts
(see Safety restraints) .........70–72
Safety defects, reporting ..........157
Safety restraints ....................70–72
belt minder ...............................75
cleaning the safety belts ..........79
extension assembly ..................78
for adults .............................71–72
for children .........................79–80
lap belt ......................................74
warning light and
chime .............................21, 74–75
Safety seats for children ............83
Seat belts
(see Safety restraints) ...............70
Seats ............................................65
child safety seats ......................83heated ........................................69
Servicing your vehicle ..............231
Special notice ................................6
Specification chart,
lubricants ...................................213
Speed control ..............................58
Speedometer ...............................26
Starting your vehicle ..................87
jump starting ..........................147
preparing to start your
vehicle .......................................87
Steering .....................................182
Steering wheel
controls ................................53, 58
tilting .........................................53
Suspension ........................115, 201
T
Tachometer .................................26
Temperature control
(see Climate control) ...........44–45
Tires
checking the pressure ............210
Towing
wrecker ....................................150
Traction control
off light ......................................21
Transmission .....................118, 123
automatic operation ...............118
fluid, checking and adding
(automatic) .............................185
fluid, checking and adding
(manual) .................................186
fluid, refill capacities ..............223
lubricant specifications ..........213
manual operation ....................123
2005 F650/750(f67)
Supplement
USA English(fus)
Index
266