alternator FORD F750 2012 12.G Owners Manual

To be 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 ensure a proper vehicle inspection procedure. The pages in
this section may be produced locally and used on a regular basis.
VEHICLE INSPECTION INFORMATION
Note:Always make sure the parking brake is applied before starting the
engine.
Engine compartment (with engine stopped)
Engine oilUse the dipstick to verify the oil level is in the
proper operating range.
Engine coolantLook through the plastic reservoir or the clear
sight glass on the reservoir (depending upon
vehicle equipment) and verify the coolant level is
within the proper operating range as marked on
the reservoir.Do not remove pressure cap
until the coolant has cooled.
Power steering
fluidVerify that the fluid level is in the proper
operating range. Refer toPower steering fluidin
theMaintenance and Specificationschapter.
Brake fluidRemove the master cylinder caps and inspect the
fluid level. The full mark is at the bottom of the
opening of the fluid ports.
Hydraulic clutch
fluidRemove the cap and inspect the fluid level. The
full mark is at the step of the reservoir.
Belts (fan,
alternator, water
pump and A/C
compressor)Inspect for glazing, fraying or cracking. There
should be no more than 5-7 cracks per rib, per
inch (2.5 cm).
Fluid leaksInspect for signs of fluid puddles, dripping fluid
on the ground under the engine or the underside
of the engine.
HVAC air inletInspect for debris that may have collected on the
HVAC air inlet grille or inside the exterior module
as this may cause reduced system performance.
Vehicle Inspection Guide
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USA(fus)

Engine starting (parking brake applied)
Air chime (if
equipped with air
compressor)The low air pressure warning chime should sound
immediately after the engine starts but before the
compressor has built-up pressure. The chime
should stop when the air pressure reaches 70 psi
(483 kPa) (or more). Let the air pressure build
to governed cut-out pressure, which should occur
between 115–130 psi (793–896 kPa).
AcceleratorPress 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.
VoltmeterInspect the gauge (diesel engine) or indicator
light (gasoline engine) to verify the alternator is
charging.
Steering linkage
free playInspect for excessive free play in the steering
linkages. The steering wheel should have less
than 2 inches (5 cm) of free play at its rim.
Full Power
Hydraulic brake
inspectionPump the brake pedal several times with the
ignition in the off or run position; the
motor/pumps can be heard momentarily
replenishing the accumulators.
Parking brakeVerify the parking brake holds the vehicle by
gently trying to pull forward with the parking
brake applied.
Vehicle Inspection Guide
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STARTING
Positions of the ignition
1. ACCESSORY – allows the
electrical accessories such as the
radio to operate while the engine is
not running.
2. LOCK – locks the automatic
transmission gearshift lever if
equipped with a P (Park) position
and allows key removal.
3. OFF – shuts off the engine and all
accessories.
4. ON – all electrical circuits operational. Warning lights illuminated. Key
position when driving.
5. START – cranks the engine. Release the key as soon as the engine
starts.
Starting the engine (diesel engine only)
WARNING:Operation of a diesel engine near flammable vapors
in the air may cause the engine speed to increase uncontrollably
and over speed. If this situation occurs, mechanical damage, fire,
explosion, personal injury or death could result.Turning off the
ignition key does not slow or stop the engine due to uncontrollable
fueling of the engine through flammable vapors being drawn into
the engine air inlet.Operation of components such as starter,
alternator, electric motors, etc. and static electricity could also ignite
flammable vapors.
Do not operate the truck in the possible presence of flammable vapors
unless both a complete hazard analysis is performed and necessary
additional safety processes and/or equipment such as vapor testing, air
intake shutoff devices, ventilation, etc. are utilized. The operator is
responsible for using those processes and/or equipment to ensure that
the diesel engine and all other components on the truck can be
operated safely under the specific conditions and hazards that may be
encountered.
Note:When starting the engine, do not press the accelerator as engine
damage may result.
3
1
2
5
4
Driving
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Inline fuses
Your vehicle may have several inline fuses located in/on the battery
cables located in the battery box depending on application.
•All Allison transmission equipped vehicles have a 10 Amp fuse located
in the clean power cables located in the battery box.
•All vehicles have a 30 Amp fused located in the clean power cables
located in the battery box.
•All vehicles equipped with an Eaton transmission have a 30 Amp fuse
located in the clean power cables located in the battery box.
•All Hydraulic brake equipped vehicles have a 40 Amp fuse located in
the clean power cables located in the battery box and in addition
another 30 Amp fuse located in a fuse holder just above the power
distribution center located in the vehicles engine compartment.
JUMP STARTING
WARNING:The gases around the battery can explode if
exposed to flames, sparks, or lit cigarettes. An explosion could
result in injury or vehicle damage.
WARNING:Batteries contain sulfuric acid which can burn skin,
eyes and clothing, if contacted.
Do not attempt to push-start your automatic transmission
vehicle. Automatic transmissions do not have push-start
capability. Attempting to push-start a vehicle with an automatic
transmission may cause transmission damage.
Before connecting a fast-charger, booster battery or installing a new
battery, make sure the ground polarities of the fast-charger, booster
battery or alternator (when installing a battery) are matched to the
ground polarity of the vehicle battery. Improper usage of the
fast-charger, hook-up of booster battery or installation of a new battery
can cause damage to the electrical system or to the alternator. Do not
attempt to polarize the alternator.
Roadside Emergencies
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ELECTRICAL SYSTEM INSPECTIONS
Periodically inspect electrical connectors on the outside of the cab, and
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 5 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.
SUSPENSION INSPECTION
Note:Do not adjust air suspension height to any setting other than the
specified setting. Altering the height setting changes the driveline angle
and may result in unwarrantable component damage, such as
transmission component damage.
Verify drive axle air suspension height and height control valve
performance at engine oil change intervals.
Periodically check:
•
Condition of spring leaves for evidence of fatigue, bending or breakage.
•Condition of suspension mounting brackets and bushings.
•Torque rod mounting fasteners for tightness.
•For proper suspension alignment; this must be maintained at all times.
•U-bolts after the chassis has been operating under load for 1,000 miles
(1,600 km) or six months (whichever comes first), the U-bolt nuts
must be re-torqued. The U-bolt nuts must be re-torqued every
36,000 miles (58,000 km) thereafter. The U-bolt and nut threads and
seats should be cleaned and lubricated to ensure a “like new”
condition when re-torquing.
Note:See theU-bolt nut torquechart later in this section.
Maintenance and Specifications
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