change wheel FORD F750 2012 12.G Owners Manual

Front brakes
HosesInspect for cracked, worn or frayed hoses; verify
all couplings are secured.
ChambersVerify brake chambers are not cracked or dented
and that they are securely mounted.
Slack adjustersInspect for broken, loose or missing parts. The
angle between the push rod and adjuster arm
should be approximately 90° when the brakes
are applied. When pulled by hand, the push rod
should not move more than approximately 1 inch
(2.5 cm).
DrumsVerify there are no cracks, dents or holes and no
loose or missing bolts and that brake linings are
not worn, dangerously thin or contaminated by
lubricant.
Front wheels
RimsInspect for damaged or bent rims; they should
not have welding repairs and no rust trails that
indicate it is loose on the wheel.
Lug nutsVerify all lug nuts are present and not loose (look
for rust trails around the lug nuts); there should
be no cracks radiating from the lug bolt holes or
distortion of the bolt holes.
Hub oil sealsInspect wheel hub oil seal for leaks and, if sight
glass if present, verify the oil level is adequate.
Oil-lubricated
front wheel
bearingsInspect for proper lubrication level if the hubcap
has a transparent window. If the hubcap does not
have a transparent window, remove the rubber
fill-plug and inspect for proper level.
WARNING:If a wheel must be changed, obtain expert tire
service help. Mounting and un-mounting of tires should only be
performed by a qualified technician using necessary safety procedures
and equipment, otherwise the result could be property damage,
personal injury or death.
Vehicle Inspection Guide
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WARNING:All vehicles have blind spots. To reduce the risk of
severe injury or property damage, never move your vehicle to
the side or rear or change lanes without being sure your way is clear
on both sides and to your rear.
Backing up
WARNING:To reduce the risk of the possibility of personal
injury while backing the vehicle, always be sure your vehicle’s
path is clear.
Before backing your vehicle, be sure you can do so safely. If anything
behind the cab limits your view, do not rely on mirrors alone to ensure
that your intended path is clear. If other people are in the vicinity, have
someone standing well behind your vehicle and outside of your intended
path (visible through an exterior mirror) guide you as you back up.
Although OSHA or some governmental regulations may require the use
of an electrical or mechanical back-up alarm to warn bystanders, such an
alarm does not ensure that the intended path is clear. When in doubt,
get out of the vehicle and visually check the intended path is clear;
back-up slowly as to allow others time to move, if necessary.
If an electrical back-up alarm is installed, it should be connected to the
back-up lamp circuit.
Parking your vehicle
Always use the parking brake. When parking on a grade, block the
wheels and turn the front wheels to one side so that if the vehicle rolls,
the front tires act against the curb to stop the vehicle. The front wheels
are more effective at stopping a rolling vehicle than the rear wheels.
WARNING:When parking your vehicle, do not leave the
transmission in gear; if the key is in the on position and the
vehicle rolls, the engine could start. Failure to follow these instructions
could result in an unattended vehicle moving, possibly causing personal
injury or property damage.
Driving through water
If driving through deep or standing water is unavoidable, proceed very
slowly especially if the depth is not known. Never drive through water
that is higher than the bottom of the hubs. Traction or brake capability
Driving
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TRACTION CONTROL (IF EQUIPPED)
Your vehicle may be equipped with a traction control system which helps
you maintain stability and steerability, especially on slippery road
surfaces such as snow- or ice-covered roads and gravel roads, by
reducing engine power and/or selectively applying the rear brakes.
Note:The traction control system does not apply the brakes when
vehicle speed is above 25 mph (40 km/h).
When the traction control switch is
pressed, standard traction control
changes to Off Road or Mud/Snow
traction mode and the traction
control light illuminates and flashes
slowly. If a traction event occurs, in
either mode, the light flashes
rapidly. The standard traction
control can be selected by pressing
the traction control switch again or
is automatically selected at next
ignition cycle.
During traction control operation,
the traction control light flashes
rapidly and the engine does not
“rev-up” when you press further on
the accelerator; this is normal
system behavior and should be no
reason for concern. If the traction
control light does not flash during a
traction control event or stays illuminated, the system is not functioning
properly, take your vehicle to your dealer for service.
If you should become stuck in snow or ice or on a very slippery road
surface, try switching to the Off Road or Mud/Snow mode. This may
allow excess wheel spin to “dig” the vehicle out and enable a successful
“rocking” maneuver.
WARNING:Aggressive driving in any road conditions can cause
you to lose control of your vehicle increasing the risk of severe
personal injury or property damage. The occurrence of a traction
control event is an indication that at least some of the tires have
exceeded their ability to grip the road; this may lead to an increased
risk of loss of vehicle control, vehicle rollover, personal injury and
death. If you experience a severe road event, SLOW DOWN.
MUD/SNOW
TRACTION
Driving
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WARNING:When doing this procedure, you will be taking the
vehicle out of park which means the vehicle can roll freely. To
avoid unwanted vehicle movement, always fully set the parking brake
prior to doing this procedure. Use wheel chocks if appropriate.
WARNING:If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be
working properly. See your authorized dealer.
AUTOMATIC TRANSMISSION OPERATION (IF EQUIPPED)
Main transmission, auxiliary transmission, transfer case and power take-off
(PTO) control shift patterns can be found on a placard or decal on the
driver’s sun visor, on the instrument panel or on the shift control itself.
The main transmission control is used to select the various gear ratios or
speeds of the transmission. Selecting D (Direct Drive), does not change
the transmission gear ratio, but is used where the gear ratios in the main
transmission are adequate to handle the vehicle operation.
If the transmission fails to shift properly, check the inline 10A fuse
located in the battery cables above the battery.
WARNING:Hold the brake pedal down while you move the
gearshift lever between positions. If you don’t hold the brake
pedal down, your vehicle may move unexpectedly and cause property
damage, personal injury or death.
6–speed TorqShifttransmission
This vehicle is equipped with an adaptive transmission shift strategy.
Adaptive transmission shift strategy offers the optimal transmission
operation and shift quality. When the vehicle’s battery has been
disconnected for any type of service or repair, the transmission will need
to relearn the normal shift strategy parameters, much like having to reset
your radio stations when your vehicle battery has been disconnected.
The adaptive transmission shift strategy allows the transmission to
relearn these operating parameters. This learning process could take
PRND 4 2 1
Driving
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REAR AXLE INFORMATION
Axle operating temperature normally don’t exceed 100°F (38°C). If the
operating temperature exceeds 230°F (110°C), the rate of axle
lubrication oxidation increases and shorten the life of the lubricant and
seals, requiring axle lubrication changes to become more frequent to
preserve the axle. Extreme Pressure (EP) lubricants should not be run
consistently above 230°F (110°C).
Gross axle weight
Your truck has gross axle weight, gross vehicle weight and gross
combination weight ratings. Do not exceed these ratings.
WARNING:Exceeding these ratings by overloading can cause
component failure resulting in property damage, personal injury
or death.
Rear axles with locking or limited-slip differentials (if equipped)
If your vehicle is equipped with a locking or limited-slip differential, note
the following:
•Power is transmitted to the opposite wheel should one of the wheels
begin to slip.
•Both wheels must be raised off the ground should it be necessary to
operate one wheel with the vehicle stationary.
WARNING:If both wheels are not raised off the ground, the
one wheel that is not raised may pull the vehicle off its support,
possibly resulting in personal injury
Driver-controlled differential lock
To prevent the vehicle from moving when servicing the wheels, tires or
brakes, turn the engine off and raise all drive wheels of the locker
differential axle. Axles equipped with NoSPIN Detroit Locker differentials
deliver power to both wheels even when only one wheel is on the
ground.
WARNING:Failure to raise all drive wheels with this type of
differential could cause the vehicle to move unexpectedly,
resulting in property damage, personal injury or death.
Driving
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and/or additions of aftermarket devices can reduce the
effectiveness of the system, as well as cause damage to the
exhaust system and/or engine. Any modifications may also
invalidate the vehicle and/or engine warranties. See the vehicle
and engine warranty guides for more information.
The inlet holes in the side of the assembly are functional. These holes
allow outside air to be drawn into the outlet assembly. The holes need to
be kept clear of mud and other foreign material to maintain proper
functionality of the system. One way to keep the holes clear is to spray
the outlet assembly with a hose when washing the vehicle. Failure to
keep the functional holes clear of foreign material may result in the holes
becoming blocked or plugged.Blocked/plugged holes or
modification/removal of the outlet assembly could result in
elevated exhaust temperatures which may result in
vehicle/property damage and/or personal injury.
NOISE EMISSIONS – EXTERIOR
In order to comply with the federal exterior noise regulations, your
vehicle may be equipped with noise emission items. Depending on the
vehicle configuration, it may have all or some of the following items:
Air Intake System:Inspect air cleaner; do not alter its location. Do not
alter inlet and outlet piping.
Body:Inspect wheel well splash shields, cab shields and underhood
insulation for deterioration, dislocation and orientation.
Cooling System:
•Inspect fan for damage to blades; if damaged, replace with the
recommended parts. Inspect for fan-to-shroud interference and any
damage to shroud such as cracks and holes.
•Do not change fan ratio or alter fan spacer dimensions and positions.
•Inspect fan clutch for proper operation; make sure the fan is
disengaged when cooling of the engine is not required.
•Inspect radiator shutters (if equipped) for proper operation; the
shutters should be open during normal operating temperatures.
Engine:Valve covers and block covers are made to damp-out engine
mechanical noise and, if needed, should be replaced with recommended
parts. Check for mechanical isolations.
Transmission Enclosure:Inspect for cracks, holes and tears. Clean any
deposits such as oil, dirt and stones.
Maintenance and Specifications
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Changing wheel types
Consult your dealer or wheel/rim distributor before attempting any wheel
or fastener changes.
WARNING:Use only the same type and style wheels and
mounting hardware to replace original parts. Failure to do so
may result in an assembly that looks fine, but does not fit together
properly. This could possibly cause wheel or fastener failures which
could result in property damage, personal injury or death.
Note:Do not attempt to mix stud-piloted wheels or fasteners with
hub-piloted wheels or fasteners.
Note:Do not change from aluminum wheels to steel wheels or
vice-versa without changing the mounting hardware required or, with
flange-nut mounting systems, changing the hub and stud assembly.
WHEEL NUT TORQUE
Size Nut mountingTorque
ft-lb N•m
22 mm Flange 450–500 610–678
Note:Do not use lubrication on dry threads. Where excessive corrosion
exists, a light coat of lubricant on the first three threads of the stud bolt
is permitted. Keep lubricant away from:
•Hex nut and rim clamp contact surfaces.
•Cap nut ball face and ball seat on the disc wheel.
•Flange nut washer surface and flat on the disc wheel.
Maintenance and Specifications
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TIRE INFORMATION
Inflation
WARNING:Always maintain your tires in good condition.
Frequently check and maintain correct inflation pressures as
specified by tire manufacturers. Inspect periodically for abnormal wear
patterns and repair/replace cut or broken tire casing. Always use
experienced, trained personnel with proper equipment and correct
procedures to mount or remove tires and wheels. Failure to adhere to
these warnings could result in wheel or tire malfunction, damage to
your vehicle, personal injury, or death.
WARNING:To avoid personal injury or death, always follow
these instructions when mounting radial tires on wheels:
•Only personnel that have had proper training and experience should
mount or remove tires from rims or wheels.
•Use only heavy-duty rims or approved rims for radial tires. It may be
necessary to contact your wheel and rim distributor to determine if
your rims are approved for radial tires.
•If a tube is to be used, make sure special radial tire tubes are used
because of the increased flexing of the sidewalls on radial tires.
•Never use anti-freeze, silicones, or petroleum based lubricants when
mounting radial tires. Only an approved lubricant should be used as
an aid for mounting tires.
•Always inflate tires in a safety cage.
•Do not attempt to mix stud piloted wheels or fasteners with hub
piloted wheels or fasteners. To do so may cause premature wheel
failure resulting in property damage, personal injury, or death.
•Do not mix foreign (not made in North America) wheel mounting
parts with domestic (made in North America) parts. Many foreign
wheel components look similar to, but not exactly the same as
domestic made components. Mixing components could cause wheel or
fastener failures and result in property damage, personal injury, or
death.
•Do not change from aluminum wheels to steel wheels or vice-versa
without changing the mounting hardware where required or, in some
cases with flange nut mounting systems, changing the hub and stud
assembly. Mixing components could cause wheel or fastener failures
and result in property damage, personal injury, or death.
Maintenance and Specifications
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Axle model Pints (Liters)*
RS-19–220 30.0 (14.0)
RS-19–223 29.0 (13.0)
RS-21–145 32.3 (15.3)
RS-21–160 39.0 (18.0)
RS-21–230 38.9 (18.4)
RS-23–160 39.5 (18.7)
RS-23–161 37.2 (17.6)
RS-23–180 47.3 (22.4)
RS-23–186 47.3 (22.4)
RS-23–240 37.4 (17.7)
RS-23–380 63.6 (30.1)
*Oil capacities are for standard track axles that have been measured at
various common drive pinion angles. The quantities listed include enough
oil for both wheel ends. These capacities change if the track or the drive
pinion angle is different.
Engine coolant and oil
Engine Engine coolant1,2Engine oil1
Diesel 26.0 quarts (24.6L) Refer to engine operator’s manual
Gas26.3 quarts (24.9L) 7.0 quarts (6.6L) (includes filter
change)
1Quantities listed are approximate.
2Add the coolant type originally equipped in your vehicle.
Power steering system
Steering gear Power steering fluid volume
TAS40 17.6 pints
TAS66 18.4 pints
Note:Capacities may be increased if the vehicle is equipped with a
cooler. Always check to make sure the fluid level is in the acceptable
range.
Maintenance and Specifications
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Daily owner checks
U.S. Department
of Transportation,
Federal Highway
Administration
requirements
(ensure that the
entire system is
functioning
properly)Service brakes
Parking brake
Steering mechanism
Lighting devices and reflectors
Tires
Horn
Windshield wipers
Rear vision mirrors
Wheels and rims
Emergency equipment
Every oil change
EngineInspect engine cooling system hoses, clamps and
protection.*
Inspect drive belts.
Exhaust systemInspect entire exhaust system (including the inlet
pipe(s), muffler(s), outlet pipe(s), clamps and
fasteners) for holes, leakage, breakage, corrosive
damage and separation from other components.
Adjust, service or replace with the same or the
equivalent part. (Also a noise emission control
service.)
SuspensionTighten the front and rear spring U-bolts to the
specified torque.
Driveline and rear
axleLubricate the U-joints and the slip yoke.
Scheduled Maintenance Guide
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