Fifth Wheel Operation - Ford F-650 Owner's Manual

Towing Vehicles Equipped with a
Driver-controlled Differential Lock
Note: If you have to tow your vehicle to a
service facility with the drive axle wheels on
the ground, it is necessary to remove the
axle shafts before towing your vehicle.
Removing Axle Shafts before Towing
1. Shift the main differential to the
unlocked (disengaged) position; the
differential lock light turns off.
2. Remove the cap screws 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 ½-inch 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 wheel 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.
Installing the Axle Shafts
1. Remove the covers from the wheel
ends.
2. Shift the differential lock to the
unlocked (disengaged) position.
F650750 (TBC), enUSA, First Printing
Towing
3. Install the axle shafts as outlined in
Steps 4 through 10.
4. Place the gaskets on the wheel hub
studs.
5. Push the right-hand axle shaft and
gasket into the wheel end and housing
until the shaft stops against the
differential shift collar.
6. Push down and in on the axle shaft
flange and rotate the shaft until the
splines of the shaft and shift collar are
engaged.
7. Push the axle shaft further into the
housing until the shaft stops against
the differential side gear.
8. Push down on the axle shaft flange and
rotate the shaft until the splines of the
shaft and side gear engage.
9. Push the axle shaft completely into the
housing until the axle shaft flange and
the gasket are flush against the wheel
hub.
10. Install the left-hand axle shaft and
gasket into the wheel end.
11. 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.
12. Install the fasteners and tighten to
correct torque value. See the
Workshop Manual.

FIFTH WHEEL OPERATION

Failure to follow the fifth wheel
manufacturer's instructions for
hooking and unhooking as well as
sliding the fifth wheel could result in an
accident, personal injury or death.
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I n f o r ma t i o n P r o v i d e d b y :
WARNINGS