Page 8 of 272
VEHICLE SYMBOL GLOSSARY
These are some of the symbols you may see on your vehicle.
Safety Alert
See Owner’s Guide
Fasten Safety BeltAir Bag-Front
Air Bag-SideChild Seat
Child Seat Installation
WarningChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemBrake Fluid -
Non-Petroleum Based
Traction ControlAdvanceTrac
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
Introduction
8
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Range inhibit:Illuminates when
the transmission is not engaged in
the selected gear. The warning light
will go off when the gearshift lever
is adjusted in to the appropriate gear.
Refer to the Transmission Operator’s Manual for more information.
Charging system:Illuminates when
the battery is not charging properly.
Wait to start:Indicates the air
intake heater is in operation and
special starting procedures are
required. Refer to theDriving
chapter.
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 result in damage
and/or personal injury.
Water in fuel (if equipped):
During refueling it is possible for
water-contaminated diesel fuel to be
pumped into your fuel tank. Your
vehicle fuel system is equipped with
a fuel filter/water separator to remove water from the fuel. The indicator
light illuminates when the fuel filter/water separator has a significant
quantity of water, or when the ignition key is switched to the START
position. If the light illuminates when the engine is running, stop the
vehicle as soon as safely possible, shut off the engine and drain the filter
bowl. Allowing water to stay in the system could result in extensive
damage to, or failure of, the fuel injection system.
To drain the fuel filter/water separator (refer toMaintenance and
Specificationschapter for procedure), rotate the valve at the bottom of
the filter assembly allowing water to drain from the system. Close the
valve upon completion.
RANGE
INHIBIT
WAIT
TO
START
WATER
IN
FUEL
Instrumentation
24
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Fuel gauge:Indicates
approximately how much fuel is left
in the fuel tank (when the ignition
is in the on position). If your vehicle
is equipped with dual fuel tanks, the
engine will draw fuel from the
passenger-side fuel tank only. With
dual fuel tanks, the vehicle will be
equipped with a fuel transfer pump system that will draw fuel from the
driver-side fuel tank and send fuel to the passenger-side fuel tank. The
passenger-side fuel tank must have fuel in it at all times otherwise the
vehicle may stall and may be difficult to re-start. The fuel gauge reads
the fuel level only from the passenger-side fuel tank.
Air pressure gauge (if equipped):
All vehicles equipped with air brakes
have a dual-pointer air gauge to
indicate the pressure in each brake
circuit. The green pointer indicates
the air pressure in the primary
system and the red pointer indicates
the air pressure in the secondary
system. When the pressure is too low
for normal brake operation (less than
60 psi [414 kPa]) and the ignition is
on:
•a warning buzzer will sound and
•a warning light will illuminate in the instrument cluster
Vehicles equipped with hydraulic brakes and an air compressor have a
single-pointer air gauge.
Note:This system doesnothave a low air pressure warning buzzer or a
low air pressure warning light.
Do not drive the vehicle when the low air pressure buzzer is
sounding or the warning light is lit. These warnings indicate
there is not enough air pressure for the brake or suspension system to
operate properly.
0 30120 90 60
150AIR
PRESSURE
PSI
Instrumentation
29
Page 142 of 272

Fuse/Relay
LocationFuse Amp
RatingFuse Description
13 20A Radio, Cluster
14 10A Interior lamps
15 10A GEM, Interior lamp relay, Map lamps
16 15A High beams
17—Not used
18 5A Headlamp switch, GEM
19 15A Engine ECM (Caterpillar and Cummins
engines)
Engine ECM, Accel, Crank (6.0L Power
Stroke engine only)
20 15A Starter relay, GEM
21 10A Daytime Running Lamps (DRL)
22 15A Air solenoid 4–pack (Air horn, Air suspension
dump, Differential lock axle and Two-speed
axle)
23 10A Electronic flasher
24 15A Vacuum pump, Air dryer, ABS, Fuel
heater/Fuel transfer pump relay, Heated
drain valve, 6.0L Power Stroke Water In Fuel
(WIF) module
25 10A Blower motor relay
26 10A RH low beam headlamp
27—Not used
28 10A LH low beam headlamp
29 10A Cluster (Power, Warning lamps), Hydraulic
ABS relay, Air traction control
30 30A Not used
31 15A Allison transmissions
Relay 1—Interior lamps
Relay 2—Not used
Relay 3—Horn
Relay 4—One-touch down window
Relay 5—Not used
2005 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
142
Page 143 of 272
Power distribution box
Fuse/Relay
LocationFuse Amp
RatingFuse Description
1 15A* Park lamps, Roof lamps
2 30A* Power seat (driver)
3 30A* Power seat (passenger)
4 15A* Washer pump
5 15A* Exhaust brake (Caterpillar and Cummins
engines only)
6 15A* Air intake heater (Caterpillar engine only)
7 15A* Stoplamps
8 25A* Fuel heater (Caterpillar engine only)
20A* Fuel heater (6.0L Power Stroke engine only)
9—Not used
10 15A* Heated drain valve
11—Not used
12—Not used
13 10A* Power park brake
14—Not used
2005 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
143
Page 144 of 272

Fuse/Relay
LocationFuse Amp
RatingFuse Description
15 7.5A* Body builder prep/trailer socket stop (6.0L
Power Stroke engine only)
16 5A* WABCO hydraulic ABS Run feed
17—Not used
18 10A* Fuel transfer pump (duel fuel tanks only)
19—Not used
20 10A* Engine ECM power relay (6.0L Power Stroke
engine only)
21 10A* GEM (Hydraulic brake vehicles only)
22 10A* Engine IDM2 logic power (6.0L Power Stroke
engine only)
23—Not used
24—Not used
101 30A** Bendix Air ABS relay (Air brake vehicles
only)
WABCO ABS modulator relay (Hydraulic
brake vehicles only)
102 20A** Body builder prep Run feed
103 50A** Ignition switch (Junction box fuses 8, 9, 10,
11, 19, 20, 22, 23, 24, 25, 29, 30, 31)
104 20A** Power point
105 20A** Power door locks
106 30A** Headlamps
107 50A** Junction box battery feed (1, 2, 3, 4, 12, 13,
14, 15)
108 40A** Fuel heater (Cummins engine only)
109 40A** Power windows
110—Not used
111 30A** Body builder prep
112 40A** Blower motor
113 30A** Heated seat (passenger side)
114 25A** WABCO ABS battery feed (Hydraulic brake
vehicles only)
2005 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
144
Page 145 of 272

Fuse/Relay
LocationFuse Amp
RatingFuse Description
115 40A** Ignition switch (Junction box fuses 5, 8, 9,
10, 11, 21)
116 30A** Body builder prep
117 20A** Body builder prep/trailer socket stop
(Caterpillar and Cummins engines only)
118 60A** Hydraulic brake trailer two fuse block
119/120 60A** Hydraulic brake trailer two fuse block
Air brake trailer two fuse block
121/122 60A** HydroMax motor
Air brake trailer two fuse block
201—Washer pump relay
202—Wiper speed relay
203—Wiper run/park relay
204—Neutral start relay (6.0L Power Stroke engine
only)
Exhaust brake relay (Caterpillar and
Cummins engines only)
205—RH stop/turn relay
206—LH stop/turn relay
207—Drain valve heater relay
208—Back-up lamps relay
209—Stoplamps relay
301—Fuel heater/Fuel transfer pump relay
302—Park lamps relay
303—Blower motor relay
304—Air ABS relay
Hydraulic modulator relay
401—Not used
501—Not used
502—Not used
503—Not used
* Mini fuse **Maxi fuse
2005 F650/750(f67)
Supplement
USA English(fus)
Roadside emergencies
145
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Component /
Component
vendorLubrication type Vendor
recommendations:
Viscosity / Ambient
temperature / NotesEquivalent Ford part
name / number
Meritor -
single-speed axle
(cont’d)Fill at the factory
with Synthetic
SAE 75W-90, will
have a tag
attached to fill
plug that reads as
follows:“Filled
with synthetic
lube. Do not mix.”—
Multipurpose EP
gear lube of API
GL-5 quality
meeting
MIL-PRF-2105E
specifications
including
synthetic*
lubricants.
(* Do not mix
conventional and
synthetic
lubricants.)SAE 85W-140: above
10°F(–12°C)Motorcraft SAE
75W-140 High
Performance Rear Axle
Lubricant /
XY-75W140-QL
SAE 85W-140: above
–15°F(–26.1°C)Motorcraft SAE
75W-140 High
Performance Rear Axle
Lubricant /
XY-75W140-QL
SAE 80W-90: above
–15°F(–26.1°C)Motorcraft SAE
80W-90 Premium Rear
Axle Lubricant /
XY-80W90-QL
SAE 75W maximum
outside temperature
(35°F (1.6°C); Above
–40°F(–40°C)Motorcraft SAE
75W-90 Fuel Efficient
High Performance Axle
Lubricant /
XY-75W90-FEHP
SAE 75W-140: Above
–40°F (Above–40°C)Motorcraft SAE
75W-140 High
Performance Rear Axle
Lubricant /
XY-75W140-QL
Cab components
Hydraulic lift
pump fluidDexron III—Motorcraft Mercon
Multi-Purpose (ATF)
Transmission Fluid /
XT-2-QDX
Cab latch and lock
leversMobile SHC 32
Low Temperature
Lubricant (or
equivalent)——
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
220