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Trailer brakes
Electric brakes and manual, automatic or surge-type trailer brakes are
safe if installed properly and adjusted to the manufacturer’s
specifications. The trailer brakes must meet local and Federal
regulations.
Do not connect a trailer’s hydraulic brake system directly to your
vehicle’s brake system. Your vehicle may not have enough
braking power and your chances of having a collision greatly increase.
Trailer lamps
Trailer lamps are required on most towed vehicles. Your vehicle may be
equipped with one of two possible trailer wiring designs. Make sure all
running lights, brake lights, turn signals and hazard lights are working.
See your dealer or trailer rental agency for proper instructions and
equipment for hooking up trailer lamps.
Driving while you tow
When towing a trailer:
•Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
•Consult your local motor vehicle speed regulations for towing a trailer.
•To eliminate excessive transmission shifting, use a lower gear. This will
also assist in transmission cooling.
•Anticipate stops and brake gradually.
•Do not exceed the GCWR rating or transmission damage may occur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to your scheduled maintenance guide for
more information.
Trailer towing tips
•Practice turning, stopping and backing up before starting on a trip to
get the feel of the vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs and other obstacles.
•Allow more distance for stopping with a trailer attached.
•The trailer tongue weight should be 10–15% of the loaded trailer
weight.
2004 F650/750(f67)
Supplement
USA English(fus)
Driving
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Fuse block - battery junction box
Fuse/Relay
LocationFuse Amp
RatingFuse Description
F1 15A* Main light switch
F2 30A* Power seat (driver)
F3 30A* Power seat (passenger)
F4 15A* Washer pump relay, Washer pump motor
F5 15A* Exhaust brake (Caterpillar and Cummins
engine)
F6 15A* Air intake heater (Caterpillar engine)
F7 15A* Stoplamp switches
F8 25A* Fuel heater relay (Caterpillar engine)
20A* Fuel heater relay (6.0L Power Stroke engine)
F9—Not used
F10 15A* Heated drain valve
2004 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
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Fuse/Relay
LocationFuse Amp
RatingFuse Description
F11—Not used
F12—Not used
F13 10A* Parking brake
F14—Not used
F15 7.5A* Body builder - trailer adapter stoplamps
F16 5A* WABCO hydraulic ABS
F17—Not used
F18 10A* Fuel transfer pump
F19—Not used
F20 10A* Engine ECM power relay (6.0L Power Stroke
engine)
F21 10A* Control for Hydro-max motor
F22 10A* V8 engine IDM2 logic power
F23—Not used
F24—Not used
F101 30A** Air ABS relay, Hydraulic modulator relay
F102 20A** Ignition switch to customer access
F103 50A** Ignition switch, Central Junction Box (CJB)
fuses 8, 9, 10, 11, 19, 20, 23, 24, 25, 29, 30,
31
F104 20A** Power point
F105 20A** Door lock switches
F106 30A** Main light switch, Multifunction switch, CJB
fuses 16, 26 and 28, Headlamps, DRL relays
F107 50A** CJB fuses 1, 2, 3, 4, 12, 13, 14, 15
F108 40A** Fuel heater relay (Cummins engine)
F109 40A** Power window relay
F110—Not used
F111 30A** Park lamps relay, Park lamps
F112 40A** Blower motor relay, Blower motor
F113 30A** Heated seats
F114 25A** Hydraulic ABS ECU power
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Supplement
USA English(fus)
Roadside emergencies
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Fuse/Relay
LocationFuse Amp
RatingFuse Description
F115 40A** Ignition switch, CJB fuse 21
F116 30A** Turn relays and back-up lamp relay
F117 20A** Stoplamp relay (Caterpillar and Cummins
engine)
F118 60A** Trailer tow left, right and ABS fuse block
(Hydraulic brake vehicles)
F119/F120 60A** Trailer tow fuse block, Stop/Tail/Marker
lamps
F121/F122 60A** Trailer tow fuse block (Air brake vehicles),
Left, right and ABS, Hydraulic HydroMax
pump motor fuse relay
R1–201—Washer pump relay
R2–202—Wiper speed relay
R3–203—Wiper run-park relay
R4–204—Crank inhibit relay (6.0L Power Stroke
engine)/Exhaust brake relay (Caterpillar and
Cummins engine)
R5–207—Drain valve heater relay
R6–205—RH stop/turn relay
R7–206—LH stop/turn relay
R8–208—Back-up lamps relay
R9–209—ECM ISO relay (6.0L Power Stroke engine)
or Stoplamp relay (Caterpillar and Cummins
engine)
FIR1–301—Fuel heater, Fuel heater-fuel transfer pump
FIR2–302—Park lamp relay
FIR3–303—Blower motor relay
FIR4–304—Air ABS relay, Hydraulic modulator relay
* Mini fuse **Maxi fuse
2004 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
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Fuse/Relay
LocationFuse Amp
RatingFuse Description
11 30A Wiper motor, Washer pump relay
12 10A Stop lamp switch (Hydraulic brake vehicles)
13 20A Cluster, Radio
14 10A Interior lamp relay
15 10A Interior lamp relay
16 15A Headlamp high beam, High beam indicator
17—Not used
18 5A Headlamp switch interior lighting
19 15A Engine control (all engines), Accelerator
pedal (6.0L Power Stroke engine)
20 15A Starting system
21 10A DRL resistor
22 15A Speed control feed (6.0L Power Stroke
engine), Air solenoid, Fuel transfer pump
23 10A Hazard flasher (Run)
24 15A ABS, Air dryer, Vacuum pump, Fuel heater
relay
25 10A Function selector switch
26 10A RH headlamp low beam
27—Not used
28 10A LH headlamp low beam
29 10A Cluster warning lamps, Gauges GEM,
Hydraulic brake ABS
30—Not used
31 15A Allison transmission or ABS event
Relay 1 1/2 ISO Interior lamp relay
Relay 2 1/2 ISO Not used
Relay 3 Full ISO Horn relay
Relay 4 Full ISO One-touch window down relay
Relay 5 Full ISO Not used
2004 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
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3. Remove the jumper cable from the positive (+) terminal of the booster
vehicle’s battery.
4. Remove the jumper cable from the positive (+) terminal of the
disabled vehicle’s battery.
After the disabled vehicle has been started and the jumper cables
removed, allow it to idle for several minutes so the engine computer can
relearnits idle conditions.
WRECKER TOWING INSTRUCTIONS
Before moving the towed vehicle, check for adequate road clearance of
vehicle components. It is recommended the towed vehicle be unloaded
prior to being towed to reduce any abnormal load to the vehicle
components resulting from the towing procedures. Before towing, be
sure to fully release the parking brake. The spring-actuated type parking
brake can be reset by recharging the air system with at least 441 kPa (64
psi) of air. If the brake system will not retain air pressure, then the
spring brakes must be released manually. Refer toParking brakein the
Drivingchapter
Note:For towing, make sure the vehicle is securely connected to the
tow vehicle and the tow vehicle parking brakes are applied before
releasing the disabled vehicle’s spring brakes.
+–+–
+–+–
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Supplement
USA English(fus)
Roadside emergencies
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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.
Towing the vehicle with the front wheels suspended
When it is necessary to tow a vehicle with the front wheels suspended,
extra precautions must be taken to avoid transmission or differential
damage. Proceed as follows:
•Remove the axle shafts from the axle assembly to prevent the wheels
from driving the differential and the transmission.
•The wheel hub ends must be covered to prevent loss of axle lubricant
and entrance of other contaminants. If the axle shafts are not
removed, removal of the propeller shafts is required.
Note:To avoid transmission damage, vehicles should not be towed even
a short distance without suspending rear wheels or removing the axle
shaft or propeller shaft.
Note:In the event the chassis is equipped with a tandem axle and the
vehicle is to be towed from the front, the forward rear axle may be
raised to clear the road surface and secured to the frame by chains or
U-bolts, allowing only the rear rear axle to contact the road surface. Axle
shafts must be removed from the rear rear axle assembly. The wheel hub
ends must be covered 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.
Towing vehicles equipped with a driver-controlled differential lock
Note:If the vehicle must be towed to a service facility with the drive
axle wheels on the ground, it is necessary to remove the axle shafts
before the vehicle is towed.
2004 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
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PAINT CHIPS
Your dealer has touch-up paint and sprays to match your vehicle’s color.
Take your color code (printed on a sticker in the driver’s door jam) to
your dealer to ensure you get the correct color.
•Remove particles such as bird droppings, tree sap, insect deposits, tar
spots, road salt and industrial fallout before repairing paint chips.
•Always read the instructions before using the products.
ALUMINUM WHEELS AND COVERS
Aluminum wheel rims or covers are coated with a clearcoat paint finish.
In order to maintain their shine:
•Clean with Motorcraft Wheel and Tire Cleaner (ZC-37–A), which is
available from your dealer.
•Never apply any cleaning chemical to hot or warm wheel rims or
covers.
•Some automatic car washes may cause damage to the finish on your
wheel rims or covers. Chemical-strength cleaners, or cleaning
chemicals, in combination with brush agitation to remove brake dust
and dirt, could wear away the clearcoat finish over time.
•Do not use hydrofluoric acid-based or high caustic-based wheel
cleaners, steel wool, fuels or strong household detergent.
•To remove tar and grease, use Ford Extra Strength Tar and Road Oil
Removal (B7A-19520–AA), available from your dealer.
ENGINE
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal. When washing:
•Take care when using a power washer to clean the engine. The
high-pressure fluid could penetrate the sealed parts and cause
damage.
•Do not spray a hot engine with cold water to avoid cracking the
engine block or other engine components.
•Spray Motorcraft Engine Shampoo and Degreaser (ZC-20) on all parts
that require cleaning and pressure rinse clean.
•Never wash or rinse the engine while it is running; water in the
running engine may cause internal damage.
2004 F650/750(f67)
Supplement
USA English(fus)
Cleaning
155