2021 FORD F650/750 Owners Manual

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
104
Trailer tow stop and turn relay.
15 A
105
Note: Spare fuse amperage may vary. Protected Component
Fuse
Rating
Relay
Number
Not used.
—
R02
Not used.
—
R05
Passenger Compartment Fuse Box
The fuse panel is in the passenger footwell.
Remove the panel cover to access the
fuses. Pull the fuse panel cover toward you to
remove it. When the clips of the panel
disengage, let the panel fall easily.
Use the provided fuse puller tool to remove
a fuse. It is on the fuse panel cover.
Replace fuses with the same type and
rating. See Changing a Fuse (page 201).
198
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing FusesE145984

Protected Component
Fuse Rating
Fuse Number
Not used.
—
1
Right-hand and left-hand front door lock
switch.
10 A
2
Telescopic mirror switch.
Right-hand and left-hand front window
switch (two window units).
Right-hand and left-hand front window
motor.
Inverter.
Power mirror switch.
7.5 A
3
Ancillary translator module.
20 A
4
Not used.
—
5
Not used.
—
6
Smart data link connector power.
10 A
7
Air brake diagnostic connector.
Not used.
—
8
Not used.
—
9
Not used.
—
10
Not used.
—
11
Smart data link connector.
7.5 A
12
Enterprise wired-in-device.
Cluster.
7.5 A
13
Steering column control module.
Not used.
—
14
Climate control module.
15 A
15
Not used.
—
16
Not used.
—
17
Yaw sensor.
7.5 A
18
Electronic stability control and non-electric
stability control.
Not used.
—
19
199
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse Number
Ignition switch.
5 A
20
Exhaust brake switch.
5 A
21
Not used.
—
22
Left-hand front window motor.
30 A
23
Not used.
—
24
Not used.
—
25
Right-hand front motor window.
30 A
26
Not used.
—
27
Not used.
—
28
Relay folding mirror.
15 A
29
Brake signal for air brake.
5 A
30
Customer access stop lamp signal.
Brake on-off isolation relay.
Trailer tow stop lamp relay.
Upfitter interface module.
10 A
31
Remote radio frequency receiver.
Radio.
20 A
32
Not used.
—
33
Not used.
—
34
Tow haul switch.
5 A
35
Lane departure warning camera.
15 A
36
Not used.
—
37
Left-hand front power window switch (four
window units).
30 A
38
Note: Spare fuse amperage may vary.
200
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

CHANGING A FUSE
Fuses
WARNING: Always replace a fuse
with one that has the specified
amperage rating. Using a fuse with a
higher amperage rating can cause severe
wire damage and could start a fire. If electrical components in the vehicle are
not working, a fuse may have blown. Blown
fuses are identified by a broken wire within
the fuse. Check the appropriate fuses
before replacing any electrical
components.
Fuse Types Micro 2.
A
Micro 3.
B
Maxi.
C
Mini.
D
M Case.
E
J Case.
F
201
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing FusesE217331 E267379

J Case Low Profile.
G
Slotted M Case.
H
202
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

VEHICLE INSPECTION
INFORMATION
To make sure your vehicle is ready to
operate, conduct a pre-trip inspection at
the beginning of each work period. Follow
the steps listed in this section to verify a
proper vehicle inspection procedure.
WARNING: Exercise great caution
when working on a vehicle equipped with
an automatic fan clutch. The fan starts
in motion only after the engine coolant
reaches a predetermined temperature
or the refrigerant pressure (if equipped
with air conditioning) reaches a
predetermined setting. The fan starts at
this point with no advance warning.
Never reach near, or permit objects to
protrude into, the fan blade radius while
the engine is running as this could result
in vehicle damage, personal injury or
death. WARNING:
Do not operate the
vehicle if any suspension conditions
listed in the following charts are evident.
Loss of steering or suspension could
result in property damage, personal injury
or death. WARNING:
If a wheel must be
changed, obtain expert tire service help.
Mounting and un-mounting of tires
should only be performed by a qualified
technician using necessary safety
procedures and equipment, otherwise
the result could be property damage,
personal injury or death.
Note: Always make sure you apply the
parking brake before starting the engine. Engine compartment (with engine off)
Use the dipstick to verify the oil level is in the proper operating
range. See
Engine Oil Dipstick (page 217).
Engine oil
Look through the plastic reservoir and verify the coolant level
is within the proper operating range. Do not remove the
pressure cap until the coolant has cooled. See
Engine
Coolant Check (page 226).
Engine coolant
Verify that the fluid level is in the proper operating range. See
Power Steering Fluid Check
(page 238).
Power steering fluid
Remove the master cylinder caps and inspect the fluid level.
See
Brake Fluid Check (page 237).
Brake fluid
203
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Vehicle Inspection Guide

Engine compartment (with engine off)
Inspect for glazing, fraying or cracking. There should be no
more than 5-7 cracks per rib, per 1 in (2.5 cm)
Belts (fan, alternator,
water pump and air
conditioning
compressor)
Inspect for signs of fluid puddles or dripping fluid on the
ground under the engine, or the underside of the engine.
Fluid leaks
Inspect for debris that may have collected on the HVAC air
inlet grille or inside the exterior module as this may reduce
system performance.
HVAC air inlet Engine starting (with parking brake applied)
Before entering the cab, verify that the vehicle is equipped
with spare electrical fuses (if used), three red reflective
triangles, a properly charged and rated fire extinguisher and
wheel chocks.
Safety and emergency
equipment
Walk around the vehicle and verify all steps and grab handles,
inside and out (as well as behind), are tight and clean. Use
extreme caution and a three-point stance at all times.
Inspect door latches for proper closing, latching and locking.
Set the parking brake. Make sure the gearshift lever is in
neutral (N) or park (P) (if equipped with a park position).
Starting the engine
Diesel engine:
Turn the key to the on position. Turn the key
to start when the wait to start indicator light in the instrument
cluster turns off.
Gasoline engine:
Turn the key to start, and then release it
as soon as the engine starts.
Verify pressure builds to normal operating range.
Engine oil pressure
A tone indicating low air pressure should sound immediately
after the engine starts but before the compressor has built-
up pressure. The tone should stop when the air pressure
reaches
70 psi (483 kPa). Let the air pressure build to
governed cutout pressure, which should occur between
115– 130 psi (793–896 kPa)
.
Low air pressure warning
tone (if equipped with an
air compressor)
Press the accelerator and verify that it operates smoothly,
without any binding or irregular feel. Release the pedal and
verify the engine returns to idle speed immediately.
Accelerator
204
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Vehicle Inspection Guide

Engine starting (with parking brake applied)
Check the gauge (diesel engine) or indicator light (gasoline
engine) to verify the alternator is charging.
Voltmeter
Inspect for excessive free play in the steering linkages. The
steering wheel should have less than 2 in (5 cm) of free play
at its rim.
Steering linkage free play
Verify the parking brake holds the vehicle by gently trying to
pull forward with the parking brake applied.
Parking brake
Verify operation using the following procedure. Chock the
wheels, if necessary. Push in the parking brake and, on
tractors, push in the tractor parking brake knob:
Air brakes
1. Verify the air compressor or governor cutout pressure is
approximately 120 psi (827 kPa).
2. Turn off the engine, and then turn the key back to the on
position (without starting the engine).
3. Without the brake pedal applied, note the air pressure drop
for one minute. It should be less than 2 psi (14 kPa) for single
vehicles and
3 psi (21 kPa) for combination vehicles.
4. Press and hold the brake pedal with
90 psi (621 kPa) or
more. Make sure there is no more than a 3 psi (21 kPa) per
minute leak for single vehicles and a 4 psi (28 kPa) minute
leak for combination vehicles.
5. Pump the brake pedal to deplete the system of air pressure.
The warning light and tone should turn on at 57 psi (393 kPa).
6. Pump the brake pedal and make sure the parking brake
and trailer parking brake knobs pop out at
20 psi (138 kPa)
or higher.
Verify that the fluid level is in the proper operating range. See
Automatic Transmission Fluid Check
(page 236).
Automatic transmission
fluid Front of vehicle
Verify all exterior lights illuminate and are clean.
Lights
Check headlights function on high and low beam.
Verify reflectors are clean, unbroken and of proper color (red
on rear, amber elsewhere).
205
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Vehicle Inspection Guide