2016 FORD F650 differential

Warning Lamps and Indicators................58
Audible Warnings and Indicators..............61
Information Displays
General Information......................................62
Information Messages.................................64
Climate Control
Manual Climate Control
..............................70
Hints on Controlling the Interior Climate............................................................71
Heated Exterior Mirrors
.................................72
Seats
Sitting in the Correct Position....................73
Head Restraints
...............................................73
Manual Seats
...................................................75
Power Seats
.....................................................76
Rear Seats
.........................................................78
Front Seat Armrest........................................79
Rear Seat Armrest.........................................80
Auxiliary Power Points
Auxiliary Power Points..................................81
Storage Compartments
Overhead Console
.........................................83
Starting and Stopping the Engine
General Information
.....................................84
Ignition Switch
................................................84
Starting a Gasoline Engine.........................85
Starting a Diesel Engine..............................86
Diesel Particulate Filter................................87
Switching Off the Engine............................88
Engine Idle Shutdown..................................88
Engine Block Heater
.....................................88 Fuel and Refueling
Safety Precautions
........................................90
Fuel Quality - Gasoline.................................91
Fuel Quality - Diesel......................................92
Running Out of Fuel - 6.8L.........................95
Running Out of Fuel - 6.7L Diesel............95
Selective Catalytic Reduction System...........................................................95
Refueling - 6.8L
............................................100
Refueling - 6.7L Diesel
.................................101
Fuel Consumption.......................................102
Emission Control System - 6.8L.............103
Emission Control System - 6.7L Diesel............................................................105
Fuel Tank Selector Switch..........................112
Transmission
Automatic Transmission.............................113
Power Take-Off
...............................................117
Rear Axle
General Information
.....................................118
Limited Slip Differential..............................118
Electronic Locking Differential.................118
2-Speed Rear Axle........................................119
Brakes
General Information
....................................120
Hints on Driving With Anti-Lock Brakes...........................................................120
Parking Brake
...................................................121
Full Power Brake...........................................124
Air Brakes.........................................................125
Exhaust Brake................................................126
Trailer Brakes..................................................128
Traction Control
Principle of Operation.................................132
Using Traction Control - Vehicles With: Air Brakes
.....................................................132
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F650750 (TBC), enUSA, First Printing Table of Contents

Diesel Particulate Filter (Diesel
Engine Only)
Illuminates when the soot level in the
diesel particulate filter has reached a point
where it requires operator assistance. See
Diesel Particulate Filter (page 87).
Direction Indicator Illuminates when you switch on
the left or right direction
indicator or when you switch on
the hazard warning flashers. If the
indicators stay on or flash faster, check for
a burned out bulb.
Door Ajar Displays when the ignition is on
and any door is not completely
closed.
Electronic Locking Differential
(If
Equipped) Illuminates when using the
electronic locking differential.
Engine Oil Pressure (Gasoline
Engine Only) If it illuminates with the engine
running, or when you are driving,
this indicates a malfunction.
Stop your vehicle as soon as it is safe to
do so and switch off the engine. Check the
engine oil level.
Note: Do not resume your journey if it
illuminates despite the level being correct.
Have the system checked by an authorized
dealer immediately.
Exhaust Brake On The exhaust brake indicator light
illuminates when you switch the
exhaust brake on. Fasten Safety Belt Illuminates and a tone sounds
to remind you to fasten your
safety belt.
High Beam Illuminates when you switch on
the high beam headlamps. It
flashes when you use the
headlamp flasher.
Hydromax Illuminates to indicate normal
hydromax booster reserve
system activation when the
engine is off and the service brake pedal is
applied. This light may also illuminate
momentarily if the engine is running and
the driver turns the steering wheel fully in
one direction while braking. If the light
remains on while the engine is running, this
indicates inadequate hydraulic booster
pressure or reserve pump system failure.
Stop the vehicle as soon as possible and
seek service immediately by your
authorized dealer.
Low Fuel Level (Gasoline Engine
Only) Illuminates when the fuel level
is low or the fuel tank is nearly
empty. Refuel as soon as
possible.
Parking Brake Warning Illuminates briefly when you
switch the ignition to the on
position (with the engine off). It
also illuminates when you apply the
parking brake. If the park brake lamp does
not illuminate at these times, seek service
immediately. Vehicles equipped with the
power park parking brake option: If the park
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F650750 (TBC), enUSA, First Printing Instrument Cluster E163170 E171217 E146190 E208810

GENERAL INFORMATION
WARNING
Exceeding these ratings by
overloading can cause component
failure resulting in property damage,
personal injury or death. Fluid Temperature
If the operating temperature exceeds
250°F (121°C), the rate of axle lubrication
oxidation increases and shortens the life
of the lubricant and seals, requiring axle
lubrication changes to become more
frequent to preserve the axle. Do not
consistently run extreme pressure (EP)
lubricants above
250°F (121°C).
Axle Conversions WARNING
When operating a loaded vehicle, the
driver must keep all adjustable axles
on the ground at all times, supporting
their share of the vehicle ’s load. Failure to
do so can overload other axles, tires,
wheels, springs, steering components,
brakes and frames, resulting in early
component failure, loss of vehicle control,
possible property damage and personal
injury. We do not recommend, or approve,
performing axle conversions. However, we
understand that, on occasion, others install
aftermarket add-on axles on the truck
chassis that allow operator control for
weight transfer from other axles (such as
air lift axles). LIMITED SLIP DIFFERENTIAL WARNING
If both wheels are not raised off the
ground, the one wheel that is not
raised may pull the vehicle off its
support, possibly resulting in personal
injury. This axle provides added traction on
slippery surfaces, particularly when one
wheel is on a poor traction surface. Under
normal conditions, the limited-slip axle
functions like a standard rear axle. The axle
may exhibit a slight noise or vibration
during tight turns with low vehicle speed.
This is normal behavior and indicates the
axle is working.
Both wheels must be raised off the ground
should it be necessary to operate one
wheel with your vehicle stationary.
ELECTRONIC LOCKING
DIFFERENTIAL
Driver-Controlled Locking
Differential
Note:
Never use the differential lock at
vehicle speeds above
25 mph (40 km/h).
Some drive axles have a driver-controlled
differential lock. The differential lock can
lock or unlock the differential when your
vehicle is moving or stopped. When extra
traction is required, the differential lock
provides full power to both wheels.
When you lock the differential, your
vehicle ’s turning radius increases
(under-steer).
Take care to avoid sudden accelerations
when both drive wheels are on a slippery
surface.
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F650750 (TBC), enUSA, First Printing Rear Axle

WARNING
Sudden accelerations on slippery
surfaces could cause the wheels to
spin, the vehicle to turn sideways on
a crowned road surface or in a turn,
possibly resulting in loss of vehicle control
and personal injury. Activating the Locking Differential
You can lock and unlock the differential
when your vehicle is moving at a constant
speed of less than 25 mph (40 km/h) and
while the wheels are not slipping. Do not
lock the differential when your vehicle is
traveling down steep grades and when
traction is minimal.
The differential lock and differential lock
light automatically disengage at speeds
above 25 mph (40 km/h). The differential
lock remains off until either you restart your
vehicle or you turn the differential lock
switch off then back on.
Servicing a Vehicle with a Locking
Differential
Turn the engine off and raise all drive
wheels of the locker differential axle in
order to prevent your vehicle from moving
when servicing the wheels, tires or brakes.
Axles equipped with a driver-controlled
differential deliver power to both wheels
even when only one wheel is on the ground. WARNING
Failure to raise all drive wheels with
this type of differential could cause
the vehicle to move unexpectedly,
resulting in property damage, personal
injury or death. 2-SPEED REAR AXLE
(If Equipped)
WARNING
Never shift a two-speed axle when
descending a steep grade as this
may cause loss of vehicle control and
result in personal injury. Note:
Do not shift between ranges when
the speed control is on.
A two-speed rear axle allows the driver to
select a low range for greater pulling power
and a high range for greater road speed
and fuel economy. You can also use these
ranges to provide extra steps between
transmission shifts when driving on steep
grades or fuel economy may be factors.
Axle Shifting Note:
Do not shift the axle to LOW when
your vehicle is moving. Use LOW when you
drive a fully loaded vehicle on a severe grade
or in congested traffic. Use HIGH for all
normal driving conditions with a lightly
loaded or partially loaded vehicle.
Note: The axle is set to HIGH by default.
To shift the axle between HIGH and LOW
with the vehicle stopped, place the
transmission in position N, then press and
hold the button for two seconds.
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F650750 (TBC), enUSA, First Printing Rear AxleE208228

•
Shift to a lower gear when driving down
a long or steep hill. Do not apply the
brakes continuously, as they may
overheat and become less effective.
• If your transmission is equipped with
the Tow/Haul feature, use this feature
when towing. This provides engine
braking and helps eliminate excessive
transmission shifting for optimum fuel
economy and transmission cooling.
• Allow more distance for stopping with
a trailer attached. Anticipate stops and
brake gradually.
TRANSPORTING THE VEHICLE WARNING
To reduce the risk of personal injury
or property damage when manually
releasing the spring brakes, be sure
to block the wheels so the vehicle cannot
move once the brakes are released. Note:
Make sure to connect your vehicle
securely to the tow vehicle and that the tow
vehicle ’s parking brakes are set before
releasing the disabled vehicle ’s spring
brakes.
Before moving the disabled vehicle, check
for adequate road clearance of vehicle
components. If possible, unload the
disabled vehicle before towing. This
reduces any abnormal load to the vehicle
components resulting from the towing
procedures. Before towing, make sure to
release the parking brake fully. You can
reset the spring-actuated type parking
brake by recharging the air system with at
least 64 psi (441 kPa) of air. If the brake
system does not retain air pressure, then
you must release the spring brakes
manually. See
Parking Brake (page 121). Towing the Vehicle with the Front
Wheels Suspended
Note:
To avoid transmission damage, do
not tow your vehicle even a short distance
without suspending rear wheels or removing
the axle shafts or driveshaft.
Note: When towing a vehicle equipped with
a tandem axle from the front, raise the
forward rear axle so it can clear the road
surface and secure it to the frame with
chains or U-bolts, allowing only the rear rear
axle to contact the road surface. Remove
axle shafts from the rear rear axle assembly.
Cover the wheel hub ends to prevent loss
of axle lubricant and entrance of
contaminants. Use extreme care in securing
the chains or U-bolts to avoid possible
damage to the brake lines, hoses or other
components.
When it is necessary to tow a vehicle with
the front wheels suspended, take extra
precautions to avoid transmission or
differential damage:
• Remove the axle shafts from the axle
assembly to prevent the wheels from
driving the differential and the
transmission.
• Cover the wheel hub ends to prevent
loss of axle lubricant and entrance of
other contaminants. If you do not
remove the axle shafts, removal of the
driveshaft is required.
Towing the Vehicle with the Rear
Wheels Suspended
Note: To avoid damage to the cab roof or
air deflector when towing your vehicle
backward (rear wheels suspended), remove
the air deflector.
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, you must lock the front wheels
in the straight-ahead position.
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F650750 (TBC), enUSA, First Printing Towing

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. 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 WARNINGS
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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F650750 (TBC), enUSA, First Printing Towing

inspection and keep to instructions
provided by the service manual.
Hydraulic brake systems are
power-assisted. There is a great
reduction in braking capabilities
without engine assist.
• Proper fluid level. The level should be
at the bottom edge of the ring on each
reservoir fill port. Do not fill the master
cylinder to the top of the reservoir. If
fluid level requires attention to
maintain a proper master cylinder level,
this is an indication of either severe
operation (pad wear) or fluid leakage.
A more frequent and thorough brake
inspection is required.
• Brake lines, hoses and fittings. Repair
or replace brake line tubes, hoses or
fittings as required. Inspect these
components every 4,000 mi
(6,000 km) for the following.
• Lines for kinks, dents, corrosion or
rupture.
• Hoses for abrasions, kinks, soft
spots or rupture, collapse, cracks,
twists or loose frame supports.
When replacing a hose, be sure
there is adequate clearance to the
hose to avoid an abrasion to the
new hose.
• All connections for leaks.
Driveline Parking Brake WARNING
Use wheel chocks and exercise
caution when inspecting under the
vehicle. A vehicle roll-away could
result in property damage, personal injury
or death. A qualified technician should adjust the
parking brake and keep to the instructions
in the service manual. AXLE INSPECTION
Front Axle
Maintaining the front axle alignment to
specifications is very important. A qualified
technician should check and maintain the
alignment.
Regular inspections should include:
•
Toe-in inspection and adjustment (if
necessary), particularly with radial
tires.
• Checking for proper tightness of axle
mounting U-bolt nuts, attaching or
mounting bolts and nuts.
• Checking the axle for damage, binding,
worn parts and adequate lubrication.
• Checking the kingpins for excessive
wear. Also, perform this check during
other scheduled maintenance, for
example as tire rotation or service,
wheel bearing service and alignment.
See the workshop manual for proper
procedures.
Toe-in
It is essential to maintain correct toe-in
and tire pressure for optimum tire wear.
Inspecting steer axle tires in the first
3,000– 10,000 mi (5,000– 16,000 km)
generally shows if tires are wearing
normally.
Rapid outside shoulder wear on both tires
indicates too much toe-in.
Rapid inside shoulder wear on both tires
indicates too much toe-out.
In P&D-type service, there can be a
left-to-right steer tire tread life differential
up to 40% depending on routes and other
variables.
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F650750 (TBC), enUSA, First Printing Maintenance

Driving Through Water...............................150
Operation in Standing Water......................... 150
DRL See: Daytime Running Lamps......................... 48
E
Economical Driving.......................................147
Electrical System Inspection....................217
Accessory Feed Connections.......................... 217
Electronic Locking Differential.................118 Activating the Locking Differential................119
Driver-Controlled Locking Differential.........118
Servicing a Vehicle with a Locking
Differential........................................................ 119
Emission Control System - 6.7L Diesel.............................................................105
Diesel Exhaust System: Oxidation Catalyst And Diesel Particulate Filter System
........................................................................\
...... 105
Emission Control System - 6.8L.............103 On-Board Diagnostics (OBD-II)................... 104
Readiness for Inspection/Maintenance (I/M) Testing................................................... 105
End User License Agreement
.................345
SYNC End User License Agreement
(EULA).............................................................. 345
Engine Block Heater
.....................................88
Rapid Heat Supplemental Heating
System................................................................ 89
Using the Engine Block Heater....................... 89
Engine Coolant Check - 6.7L Diesel.......195 Adding Engine Coolant..................................... 195
Checking Coolant Corrosion Inhibitor Additive Strength ......................................... 198
Coolant Change.................................................. 199
Engine and Secondary Cooling System Refill Procedure.............................................. 197
Engine-driven Cooling Fan (Fan Clutch) ............................................................... 199
Recycled Engine Coolant................................. 197
Severe Climates.................................................. 198Engine Coolant Check - 6.8L...................190
Adding Engine Coolant.................................... 190
Coolant Change.................................................. 192
Engine and Secondary Cooling System Refill Procedure............................................... 191
Engine-driven Cooling Fan (Fan Clutch)............................................................... 193
Recycled Engine Coolant................................. 192
Severe Climates.................................................. 192
What You Should Know About Fail-Safe Cooling............................................................... 193
Engine Idle Shutdown..................................88
Engine Immobilizer See: Passive Anti-Theft System..................... 42
Engine Oil Check - 6.7L Diesel.................186 Engine Oil Specifications................................ 186
Engine Oil Check - 6.8L
..............................185
Adding Engine Oil............................................... 185
Engine Oil Dipstick - 6.7L Diesel.............185
Engine Oil Dipstick - 6.8L..........................185
Engine Specifications - 6.7L Diesel........251 Drivebelt Routing................................................ 251
Engine Specifications - 6.8L.....................251 Drivebelt Routing................................................ 251
Entering, Exiting or Climbing on This Vehicle..............................................................15
Environment.....................................................16
Essential Towing Checks...........................142 Before Towing a Trailer..................................... 142
Hitches.................................................................... 142
Safety Chains....................................................... 142
Trailer Brakes........................................................ 142
Trailer Lamps........................................................ 142
When Towing a Trailer...................................... 142
Event Data Recording See: Data Recording............................................. 12
Exhaust Brake................................................126 Exhaust Brake Operating
Characteristics................................................ 127
Exhaust System Inspection......................218
Export Unique Options.................................14
Extended Service Plan (ESP)
..................312
SERVICE PLANS (CANADA ONLY)..............313
SERVICE PLANS (U.S. Only).......................... 312
369
F650750 (TBC), enUSA, First Printing Index