Page 161 of 290
Relay
locationRelay description
R21 Run
R22 Door unlock
R23 ABS warning indicator
R24 DRL #2
R25 Park lights
R26 Spare
Trailer tow relays (if equipped)
Fuse/Relay
LocationFuse Amp
RatingDescription
1 30A* Trailer tow ABS feed (non electric trailer
brake vehicles only)
2 30A* Trailer tow park/marker lamps
3 30A* Trailer tow stop lamps
4 30A* Trailer tow turn/stop lamps (combined)
Trailer tow turn lamps (separate)
5 — Not used
R1 — Trailer tow ABS relay (non electric trailer
brake vehicles only)
Roadside Emergencies
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2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)
Page 220 of 290

7. Clean and install the filler plug securely.
CHASSIS-MOUNTED CHARGE AIR COOLER
Inspect charge air cooler daily
With the engine off, visually inspect the charge air cooler core assembly
for debris and clogging of external fins. Prior to engine operation,
remove any debris blocking the core.
•Turbocharger-to-charge air cooler
•Charge air cooler-to-intake manifold pipe
•Mounting bracket
•Chassis-mounted charge air cooler core
Inspect air intake piping
•Check for accumulation of salt deposits (where applicable). If present,
disassemble and clean the complete air intake piping system. If the
intake piping is pitted, use MotorcraftSilicone Gasket and Sealant
TA-30 to seal joints against leakage.
•Check for loose hoses and clamps.
•Check for ruptured or collapsed hoses.
•Check air cleaner housing for cracks.
ELECTRICAL SYSTEM INSPECTIONS
Periodically inspect electrical connectors on the outside of the cab, on
the engine and frame for corrosion and tightness. Exposed terminals
such as the fuel sender, cranking motor, alternator and feed-through
studs should be cleaned and re-coated with a lubricant sealing grease
such as MotorcraftSilicone Brake Caliper Grease and Dielectic
Compound XG-3, or equivalent. This should include the ground cable
connector for batteries, engine and cab as well as the jump starting stud.
Accessory feed connections
Vehicle electrical systems are complex and often include powertrain
components such as engine and transmission controls, instrument panels,
ABS, etc. While most systems operate on battery voltage (12 volts),
some systems can be as high as 90 volts or as low as five volts. Refer to
the Electrical Circuit Diagram Manuals, available from your vehicle’s
manufacturer, to ensure that any additional body lights and accessories
are connected to circuits that are both appropriate and not overloaded.
No modification should be made to any vehicle control system without
first contacting your dealer.
Maintenance and Specifications
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2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)
Page 288 of 290

odometer ...................................31
speedometer .............................31
tachometer ................................31
trip odometer ............................31
H
Hazard flashers
.........................154
Headlamps
...................................51
aiming
........................................52
daytime running lights
.............51
high beam
.................................51
warning chime
..........................23
Heating
heating and air conditioning
system
.......................................48
Hood
..........................................190
I
Ignition
.......................................104
chime
.........................................23
Infant seats (see Safety seats)
..92
Instrument panel
cleaning
...................................178
lighting up panel and
interior
.......................................52
J
Jump-starting your vehicle
......162
K
Keys
key in ignition chime
...............23
positions of the ignition
.........104L
Lamps
bulb replacement
specifications chart ..................53
cargo lamps ...............................52
daytime running light ...............51
headlamps .................................51
high beams ................................51
instrument panel, dimming .....52
interior lamps ...........................53
replacing bulbs ...................53–55
Lane change indicator
(see Turn signal) ........................52
Lights, warning and indicator ....23
air suspension ...........................23
anti-lock brakes (ABS) ....23, 130
brake ..........................................23
charging system ........................23
safety belt .................................23
service engine soon ..................23
traction control off ...................23
turn signal indicator .................23
Locks
childproof ..................................68
Lubricant specifications ...........237
Lumbar support, seats .........75–76
M
Manual transmission .................138
lubricant specifications ..........237
Message center ...........................32
warning messages .....................34
Mirrors .........................................60
fold away .............................61, 63
side view mirrors (power) .......60
signal .........................................63
O
Odometer .....................................31
Index
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Supplement, 2nd Printing
USA(fus)
Page 290 of 290

fluid, checking and adding
(automatic) .............................218
fluid, checking and adding
(manual) .................................219
fluid, refill capacities ..............252
lubricant specifications ..........237
manual operation ....................138
Turn signal ..................................52
U
Upfitter controls .........................66
UREA .........................................201
V
Vehicle loading ..................147–148
Voltmeter (see Battery voltage
gauge) ..........................................31W
Warning chimes ...........................23
Warning lights (see Lights)
.......23
Washer fluid
..............................192
Water, Driving through
.............109
Wheels
.......................................224
Windows
power
.........................................58
Windshield washer fluid and
wipers
..........................................56
checking and adding fluid
.....192
operation
...................................56
replacing wiper blades
...........193
Wrecker towing
.........................166
Index
290
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)
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