2006 FORD F750 towing

1. Shift collar in the locked position
2. Actuator assembly and shift fork
3. Axle shaft
4. Interference between the shift
collar and housing
5. Shift collar in the unlocked
position
6. Outer splines - axle shaft to collar
7. Shift collar and differential case
splines
8. Inner splines - axle shaft to side
gear
9. Side gear
10. Differential (plain) case half
Removing axle shafts before towing
1. Shift the main differential to the unlocked (disengaged) position. The
differential lock light will turn off.
2. Remove the capscrews and washers or stud nuts and washers from
flanges of both axle shafts.
3. Loosen the tapered dowels in the flanges of both axle shafts by
holding a 1
12inch diameter brass drift or hammer against the axle shaft
center and hitting it with a five or six pound hammer.Note:Do not use
a chisel or wedge to loosen the axle shafts and dowels. Use of a chisel or
wedge can damage the hub, axle shafts and oil seals.
4. Remove the tapered dowels and both axle shafts from the axle
assembly.
5. Assemble a cover over openings of both wheels ends to prevent loss of
lubricant and keep dirt away from the wheel bearing cavities.
Note:One of the axle shafts has two sets of splines. One set to engage
with the differential side gear and one set to engage with the shift collar
for the differential lock. It may be necessary to rotate the shaft slightly
to align the gear spline teeth with the shift collar teeth in order to
remove the axle shaft.
2006 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
157

Installing the axle shafts
1. Remove the covers from the wheel ends
2. Shift the differential lock to the unlocked position (disengaged)
position.
3. Install the axle shafts
•Place the gaskets on the wheel hub studs.
•Push the right-hand axle shaft and gasket into the wheel end and
housing until the shaft stops against the differential shift collar.
•Push down and in on the axle shaft flange and rotate the shaft until
the splines of the shaft and shift collar are engaged.
•Push the axle shaft further into the housing until the shaft stops
against the differential side gear.
•Push down on the axle shaft flange and rotate the shaft until the
splines of the shaft and side gear are engaged.
•Push the axle shaft completely into the housing until the axle shaft
flange and the gasket are flush against the wheel hub.
•Install the left-hand axle shaft and gasket into the wheel end.
4. If tapered dowels are required, install them at each stud and into the
flange of the axle shaft. Use a punch or drift and hammer, if needed.
5. Install the fasteners and tighten to correct torque value. Refer to the
Service Manual section.
Towing the vehicle with the rear wheels suspended
Note:To avoid damage to the cab roof or air deflector when towing the
vehicle backward (rear wheels suspended) the air deflector must be
removed.
Whenever possible, it is preferable to tow a disabled vehicle from the
rear by raising the rear of the chassis. When towing a vehicle with the
rear of the chassis suspended the front wheels must be locked in the
straight-ahead position.
Vehicles equipped with a manual-shift transmission must have at least
1.0 pint (0.5L) of transmission fluid drained from the case. This will
prevent the transmission fluid from entering the clutch housing and fluid
saturating the clutch discs. Make sure that the transmission fluid is
replaced before the vehicle is returned to service.
2006 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
158

* Heavy duty trailer towing with ambient temperatures above 50°F
(10°C) requires 15W-40 engine oil.
Using the chart, determine which SAE viscosity grade best suits the
temperature range in which you expect to operate your vehicle. The use
of the correct oil viscosity grade for diesel engines is important for
satisfactory engine operation.
A symbol has been developed by the American Petroleum Institute (API)
to help you select the proper engine oil. The symbol will be included on
the oil container you purchase.
The top section of the symbol shows
the API service category
designation. This should be CI-4/SL
or CI-4 PLUS.
The center section of the API
symbol shows the SAE viscosity
grade.
Use a Ford engine oil filter, part number FL-1995 or equivalent. This
filter protects your engine by filtering harmful, abrasive or sludge
particles.
SAE VISCOSITY GRADES
EXPECTED TEMPERATURE RANGE
F˚ -20 -10 0 10 20 30 40
40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 C˚50 60 70 80 90 100
*15W-40 Preferred
10W-30
5W-30
0W-30Preferred
2006 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
180

fluid, refill capacity ................232
fluid, specifications .................218
Power Take-Off (PTO)
operation .................................131
Power Windows ...........................59
R
Radio ..........................33–34, 39, 44
Relays ........................................145
Remote entry system
locking/unlocking doors ...........67
Roadside assistance ..................143
S
Safety belts
(see Safety restraints) .........74–76
Safety defects, reporting ..........162
Safety restraints ....................74–76
belt minder ...............................79
cleaning the safety belts ..........82
extension assembly ..................82
for adults .............................75–76
for children ...............................83
lap belt ......................................77
warning light and chime ....23, 78
Safety seats for children ............86
Scheduled Maintenance
Guide .........................................235
Coolant Change Record .........265
General Maintenance
Information .............................235
Seat belts
(see Safety restraints) ...............74
Seats ............................................68
child safety seats ......................86heated ........................................73
Special notice ................................6
Specification chart,
lubricants ...................................218
Speed control ..............................63
Speedometer ...............................28
Starting your vehicle ..................91
jump starting ..........................151
preparing to start your
vehicle .......................................91
Steering .....................................188
Steering wheel
controls ................................58, 63
tilting .........................................58
Suspension ........................119, 204
T
Tachometer .................................28
Temperature control
(see Climate control) ...........50–51
Tires
checking the pressure ............214
Towing
wrecker ....................................155
Traction control
off light ......................................23
Transmission .....................121, 125
automatic operation ...............121
fluid, checking and adding
(automatic) .............................192
fluid, checking and adding
(manual) .................................193
fluid, refill capacities ..............232
lubricant specifications ..........218
manual operation ....................125
Turn signal ..................................54
2006 F-650/750(f67)
Supplement
USA(fus)
Index
270

V
Vehicle loading ..................136–137
Voltmeter (see Battery voltage
gauge) ..........................................28
W
Warning chimes ...........................23
Warning lights (see Lights) .......23
Warranty coverage ........................6
Washer fluid ..............................185
Washing your vehicle ................163
Water, Driving through ...............96Waxing your vehicle .................163
Wheels
.......................................208
Windows
power
.........................................59
Windshield
defrosting
............................50–51
Windshield washer fluid and
wipers
..........................................58
checking and cleaning
............165
operation
...................................58
replacing wiper blades
...........185
Wrecker towing
.........................155
2006 F-650/750(f67)
Supplement
USA(fus)
Index
271