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2. Remove four screws from the
lamp assembly.
3. Carefully lower lamp assembly
and pull the bulb socket straight out
of the lamp assembly.
4. Carefully pull the bulb straight
out of the socket and push in the
new bulb.
5. To complete installation, follow
the removal procedure in reverse order.
Replacing front clearance and identification lamp bulbs
To change the cab marker bulbs:
1. Make sure the headlamp control
is in the OFF position and then
remove the screw and lens from the
lamp assembly.
2. Carefully pull the bulb straight
out of the socket and push in the
new bulb.
3. Install lens on lamp assembly with
screw.
Replacing brake/tail/rear turn signal/back-up/license plate lamp
bulbs
The brake/tail/turn
signal/back-up/license plate lamp
bulbs are located in the same
portion of the tail lamp assembly.
Follow the same steps to replace
any of these bulbs:
1. Make sure the headlamp and turn
signal controls are in the OFF
position and then remove the four
screws and the lamp lens from lamp
assembly.
2. Carefully pull the bulb straight out of the socket and push in the new
bulb.
3. Install the lens on the lamp assembly with the four screws.
2004 F650/750(f67)
Supplement
USA English(fus)
Lights
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If you drive up or down a steep hill, your vehicle speed may vary
momentarily slower or faster than the set speed; this is normal.
Speed control cannot reduce the vehicle speed if it increases above the
set speed on a downhill. If your vehicle speed is faster than the set
speed while driving on a downhill, you may want to shift to the next
lower gear or apply the brakes to reduce your vehicle speed.
If the vehicle speed falls below 48 km/h (30 mph) or engine RPM falls
below 1,000 RPM, your speed control will disengage; this is normal.
Pressing RESUME - (instrument panel-mounted controls) or RES
(steering wheel-mounted controls) will re-engage it.
Do not use the speed control in heavy traffic or on roads that
are winding, slippery, or unpaved.
To set a higher set speed
Instrument panel-mounted
controls:Press and hold SET +. If
the vehicle is moving, this will
increase vehicle speed; if the vehicle
is stationary, this will increase
engine RPM. Release the control
when the desired vehicle
speed/engine RPM is reached.
Press and release SET + to operate the tap-up function. Each press will
increase the set speed by 1.6 km/h (1 mph) or engine RPM in idle mode.
Steering wheel-mounted
controls:Press and hold SET
ACCEL. Release SET ACCEL when
the desired vehicle speed is
reached. SET ACCEL can also be
pressed and released to operate the
tap-up function which will increase
vehicle speed in increments of 1.6
km/h (1 mph).
You can accelerate with the accelerator pedal at any time during speed
control usage. Releasing the accelerator pedal will return your vehicle to
the previously programmed speed.
RES
SET
ACCEL
COAST
2004 F650/750(f67)
Supplement
USA English(fus)
Driver controls
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To disengage speed control
•Depress the brake pedal or
•Depress the clutch pedal (if
equipped).
Disengaging the speed control will
not erase the previously
programmed set speed or engine
RPM.
Instrument panel-mounted
controls:Pressing OFF will erase
the previously programmed engine
RPM.
Steering wheel-mounted
controls:Pressing OFF will erase
the previously programmed speed.
CRUISE
RPM
OFF
2004 F650/750(f67)
Supplement
USA English(fus)
Driver controls
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Page 70 of 264

2. To unfasten, push the release
button and remove the tongue from
the buckle.
The front and rear outboard safety restraints in the vehicle are
combination lap and shoulder belts. The front and rear seat passenger
outboard safety belts have vehicle sensitive emergency locking retractors.
Vehicle sensitive retractor
The vehicle sensitive retractor allows free shoulder belt length
adjustment to your movements and locks in response to vehicle
movement. For example, if the driver brakes suddenly or turns a corner
sharply, or the vehicle receives an impact of approximately 8 km/h (5
mph) or more, the combination safety belts will lock to help reduce
forward movement of the driver and passengers.
Front safety belt height adjustment
SuperCab and CrewCab vehicles have safety belt height adjustments for
the driver and front passenger. Adjust the height of the shoulder belt so
the belt rests across the middle of your shoulder.
2004 F650/750(f67)
Supplement
USA English(fus)
Seating and safety restraints
70
Page 75 of 264

Reasons given... Consider...
“The people I’m with don’t
wear belts”Set the example, teen deaths occur 4
times more often in vehicles with
TWO or MORE people. Children and
younger brothers/sisters imitate
behavior they see.
“I have an air bag”Air bags offer greater protection when
used with safety belts. Frontal air
bags are not designed to inflate in
rear and side crashes or rollovers.
“I’d rather be thrown clear”Not a good idea.Peoplewho are
ejected are 40 times more likely
to DIE.Safety belts help prevent
ejection, WE CAN’T“PICK OUR
CRASH”.
Do not sit on top of a buckled safety belt to avoid the Belt
Minder chime. Sitting on the safety belt will increase the risk of
injury in an accident. To disable (one-time) or deactivate the Belt
Minder feature please follow the directions stated below.
One-time disable
Any time the safety belt is buckled and then unbuckled during an
ignition ON cycle, BeltMinder will be disabled for that ignition cycle only.
Deactivating/Activating the BeltMinder feature
Read steps1-9thoroughly before proceeding with the
deactivation/activation programming procedure.
The BeltMinder feature can be deactivated/activated by performing the
following procedure:
Before following the procedure, make sure that:
•The parking brake is set.
•The gearshift is in P (Park) (automatic transmission) or the neutral
position (manual transmission).
•The ignition switch is in the OFF position.
•All vehicle doors are closed.
•The driver’s safety belt is unbuckled.
2004 F650/750(f67)
Supplement
USA English(fus)
Seating and safety restraints
75
Page 86 of 264

STARTING PROCEDURES
Operating precautions
•Always shift to a lower gear at high altitudes to prevent engine
smoking.
•Avoid extended and unnecessary idling.
Diesel engine vapors are combustible. Do not operate the engine
in an enclosed area. These vapors can be sucked through the air
intake system and cause an explosion which may result in severe
bodily injury and extensive property damage.
Starting the engine
1. Ensure headlamps and all accessories are turned off, the parking
brake is applied and the transmission is in the neutral position (or P
[Park] for Allison 2400 transmissions).
If your vehicle is equipped with an
air intake heater, the heater will
activate in cooler weather. If the
Wait to startlight illuminates,do
notcrank the engine until the light
goes off.
If equipped with an air intake heater, DO NOT use ether or any
other starting fluids. The use of starting fluids (ether) in an
engine equipped with an air intake heater could cause an explosion
and result in property damage and/or personal injury.
2. Do not depress the accelerator during starting the engine.
3. Start the engine.
If the engine does not start after 30 seconds of cranking, allow two
minutes for the starter to cool before trying again. Excessive cranking
may damage the starter.
WAIT
TO
START
2004 F650/750(f67)
Supplement
USA English(fus)
Driving
Driving
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Page 88 of 264

•If your vehicle is equipped with a water-fuel separator, drain it daily.
Fill the fuel tank at the end of daily operation to prevent condensation
in the fuel system.
•Make sure you use proper cold weather engine oil and that it is at its
proper level.
•At temperatures of–20°C(–4°F) or below, it is recommended that you
use a crankcase-mounted coolant heater to improve cold engine
starting.
•If operating in arctic temperatures of–29°C (-20°F) or lower, consult
your truck dealer for information about special cold weather
equipment and precautions.
Note:Idling in cold weather will not heat the engine to its normal
operating temperature. Long periods of idling in cold weather can cause
a buildup of heavy deposits of carbon and rust on valve stems causing
them to stick which, in turn, can cause valvetrain damage.
The following cold weather idling guidelines must be followed:
•Avoid idling the engine for more than 10 minutes at a time.
•Use a minimum of 45 Cetane Diesel fuel or use Cetane Index
improvers from a reputable manufacturer.
•Maintain a minimum idle of 1250 RPM by using the hand throttle.
Always make sure that the parking brake is applied and the
transmission is in neutral before applying the hand throttle.
•Maintain the engine cooling system properly.
•Do not shut the engine down after an extensive idling period (10
minutes or more). Drive the vehicle under load for several miles at
normal operating temperatures to burn off any accumulated carbon
and varnish.
•Consider using an engine block heater, approved winter fronts and/or
radiator shutters where conditions warrant.
Winter fronts
The use of winter fronts, or other air-restrictive devices mounted in front
of the radiator on vehicles with chassis-mounted charge air coolers, are
not recommended unless extremely cold weather conditions exist. Air
flow restriction can cause high exhaust temperatures, power loss,
excessive fan usage and a reduction in fuel economy. If you insist on
using a winter front, the device should have a permanent opening of at
least 774 sq. cm (120 sq in.) directly in line with the fan hub.
2004 F650/750(f67)
Supplement
USA English(fus)
Driving
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•Operate in a gear that will permit an engine speed not in excess of the
maximum governed speed or high-idle RPM (no load).
All vehicles have blind spots. To reduce the risk of severe injury
or property damage, never move your vehicle to the side or rear
or change lanes without being sure your way is clear on both sides and
to your rear.
Backing up
To reduce the risk of the possibility of personal injury while
backing the vehicle, always be sure your vehicle’s path is clear.
Before backing your vehicle, be sure you can do so safely. If anything
behind the cab limits your view, do not rely on mirrors alone to assure
that your intended path is clear. If other people are in the vicinity, have
someone standing well behind your vehicle and outside of your intended
path (visible through an exterior mirror) guide you as you back up.
Although OSHA or some governmental regulations may require the use
of an electrical or mechanical back-up alarm to warn bystanders, such an
alarm does not assure that the intended path is clear.
If an electrical back-up alarm is installed, it should be connected to the
back-up lamp circuit.
Parking your vehicle
Always use the parking brake. When parking on a grade, block the
wheels and turn the front wheels to one side.
When parking your vehicle, do not leave the transmission in
gear; if the key is in the ON position and the vehicle rolls, then
engine could start. Failure to follow these instructions could result in
an unattended vehicle moving, possibly causing personal injury or
property damage.
2004 F650/750(f67)
Supplement
USA English(fus)
Driving
90