2021 FORD F650/750 trailer

Drive your new vehicle at least 1,000 mi
(1,600 km) before towing a trailer. Make
sure you use the specified engine oil. See
Capacities and Specifications
(page
288).
Do not add friction modifier compounds
or special break-in oils during the first few
thousand miles (kilometers) of operation.
These additives may prevent piston ring
seating.
DRIVING THROUGH WATER WARNING:
Do not drive through
flowing or deep water as you may lose
control of your vehicle.
Note: Driving through standing water can
cause vehicle damage.
Note: Engine damage can occur if water
enters the air filter.
Before driving through standing water,
check the depth. Never drive through water
that is higher than the bottom of the wheel
hubs. When driving through standing water, drive
very slowly and do not stop your vehicle.
Your brake performance and traction may
be limited. After driving through water and
as soon as it is safe to do so: •
Lightly press the brake pedal to dry the
brakes and to check that they work.
• Check that the horn works.
• Check that the exterior lights work.
• Turn the steering wheel to check that
the steering power assist works.
Operation in Standing Water
Ingestion of water into the diesel engine
can result in immediate and severe
damage to the engine. If driving through
water, slow down to avoid splashing water
into the intake. If the engine stalls, and you
suspect ingestion of water into the engine,
do not try to restart the engine. Consult
your dealer for service immediately.
Your fuel tank vents to the atmosphere by
valves on top of the tank and through the
fuel cap. If water reaches the top of the
tank, the valves may pull water into the
fuel tank. Water in the fuel can cause
performance issues and damage the fuel
injection system.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Driving HintsE176913

ROADSIDE ASSISTANCE
Vehicles Sold in the United States:
Getting Roadside Assistance
To fully assist you should you have a
vehicle concern, Ford Motor Company
offers a complimentary roadside
assistance program. This program is
separate from the New Vehicle Limited
Warranty.
The service is available:
•
24 hours a day, seven days a week.
• For the coverage period supplied with
your vehicle.
Roadside Assistance covers:
• A flat tire change with a good spare
(except vehicles supplied with a tire
inflation kit).
• Battery jump start.
• Lock-out assistance (key replacement
cost is the customer's responsibility).
• Fuel delivery — independent service
contractors, if not prohibited by state,
local or municipal law, shall deliver up
to 2 gal (8 L) of gasoline or 5 gal (20 L)
of diesel fuel to a disabled vehicle.
Roadside Assistance limits fuel delivery
service to two no-charge occurrences
within a 12-month period.
• Winch out — available within 100 ft
(30 m) of a paved or county
maintained road, no recoveries. •
Towing — independent service
contractors, if not prohibited by state,
local or municipal law, shall tow Ford
eligible vehicles to an authorized dealer
within
35 mi (56 km) of the
disablement location or to the nearest
authorized dealer. If a member
requests a tow to an authorized dealer
that is more than
35 mi (56 km) from
the disablement location, the member
shall be responsible for any mileage
costs in excess of
35 mi (56 km).
• Roadside Assistance includes up to
$200 for a towed trailer if the disabled
eligible vehicle requires service at the
nearest authorized dealer. If the towing
vehicle is operational but the trailer is
not, then the trailer does not qualify for
any roadside services.
Vehicles Sold in the United States:
Using Roadside Assistance
Complete the roadside assistance
identification card and place it in your
wallet for quick reference. This card is in
the Owner's Manual kit.
United States vehicle customers who
require Roadside Assistance, call
1-800-241-3673.
If you need to arrange roadside assistance
for yourself, Ford Motor Company
reimburses a reasonable amount for
towing to the nearest dealership within
35 mi (56 km)
. To obtain reimbursement
information, United States vehicle
customers call 1-800-241-3673.
Customers need to submit their original
receipts.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Roadside Emergencies

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
28
Alternator 1 A-Line.
10 A
29
Not used.
—
30
Hydromax pump.
60 A
31
Powertrain control module.
20 A
32
Canister vent solenoid (gas).
20 A
33
Canister purge solenoid (gas).
Variable cam timing actuator 11 (gas).
Heated exhaust gas oxygen sensor (gas).
Urea tank power (diesel).
Exhaust gas recirculation cool bypass valve (diesel).
A/C clutch relay.
10 A
34
Customer access vehicle power 3 feed.
Variable oil pump (diesel).
Cooling fan (diesel).
Fan clutch (gas).
Coil on plug (gas)
20 A
35
Urea tank (diesel).
Glow plug controller (diesel).
Nitrogen oxide sensor control module (diesel).
Particulate matter sensor (diesel).
Fuel volume control value (diesel).
10 A
36
Fuel pressure regulator (diesel).
Not used.
—
37
Not used.
—
38
Not used.
—
39
Trailer brake control module.
30 A
41
Not used.
—
43
Not used.
—
45
A/C clutch solenoid.
10 A
46
Upfitter relay 1.
40 A
47
Upfitter run and accessory feed.
20 A
48
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Pump electronics module (gas).
30 A
49
Fuel pump (diesel).
Injector power (gas).
15 A
50
Power point #1.
20 A
51
Not used.
—
52
Trailer tow park lamp.
30 A
53
Not used.
—
54
Upfitter relay 3.
20 A
55
Not used.
—
56
USB power.
5 A
58
Not used.
—
59
Dual fuel tank selector switch (diesel).
10 A
60
Not used.
—
61
Not used.
—
62
Driver seat compressor.
20 A
63
Passenger seat compressor.
20 A
64
Not used.
—
65
Four pack solenoid differential lock.
10 A
66
Hydromax relay power.
10 A
67
Not used.
—
69
Inverter.
40 A
70
Anti-lock brake system valves.
30 A
71
Brake on-off switch (hydraulic brakes).
10 A
72
Stop lamp air pressure switch 1 and 2 (air brakes).
Not used.
—
73
Heated mirror.
15 A
74
Not used.
—
75
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Body control module battery feed.
60 A
76
Body control module voltage quality monitor power feed.
30 A
77
Transmission module (diesel).
10 A
78
Hydromax pump monitor.
5 A
79
Trailer tow backup signal.
10 A
80
Not used.
—
81
Upfitter switch (factory location for ignition power).
5 A
82
Upfitter switch (optional location for power at all times).
5 A
83
Not used.
—
84
Not used.
—
85
Not used.
—
86
Not used.
—
87
Cargo lamps.
10 A
88
Not used.
—
89
Not used.
—
91
Not used.
—
93
Not used.
—
94
Stop lamps.
20 A
95
Trailer tow stop lamps.
Not used.
—
96
Not used.
—
97
Trailer tow battery charge.
30 A
98
Upfitter relay 2.
40 A
99
Glow plug controller (diesel).
25 A
100
Not used.
—
101
Not used.
—
102
Not used.
—
103
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

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).
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing FusesE145984

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.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

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).
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Vehicle Inspection Guide