tires FORD E450 2012 Service Manual

•A final example for your vehicle with 1,400 lb. (635 kg) of cargo and
luggage capacity. You and one of your friends decide to pick up
cement from the local home improvement store to finish that patio
you have been planning for the past 2 years. Measuring the inside of
the vehicle with the rear seat folded down, you have room for
12-100 lb. (45 kg) bags of cement. Do you have enough load capacity
to transport the cement to your home? If you and your friend each
weigh 220 lb. (99 kg), the calculation would be: 1400 - (2 x 220) - (12
x 100) = 1400 - 440 - 1200 = - 240 lb. No, you do not have enough
cargo capacity to carry that much weight. In metric units, the
calculation would be: 635 kg - (2 x 99 kg) - (12 x 45 kg) = 635 - 198 -
540 = -103 kg. You will need to reduce the load weight by at least
240 lb. (104 kg). If you remove 3-100 lb. (45 kg) cement bags, then
the load calculation would be:
1400 - (2 x 220) - (9 x 100) = 1400 - 440 - 900 = 60 lb. Now you have
the load capacity to transport the cement and your friend home. In
metric units, the calculation would be: 635 kg - (2 x 99 kg) - (9 x
45 kg) = 635 - 198 - 405 = 32 kg.
The above calculations also assume that the loads are positioned in your
vehicle in a manner that does not overload the Front or the Rear Gross
Axle Weight Rating specified for your vehicle on the Safety Compliance
Certification Label found on the edge of the driver’s door.
Special loading instructions for owners of pick-up trucks and
utility-type vehicles
WARNING:For important information regarding safe operation
of this type of vehicle, see thePreparing to drive your vehicle
section in theDrivingchapter of this owner’s guide.
WARNING:Loaded vehicles may handle differently than
unloaded vehicles. Extra precautions, such as slower speeds and
increased stopping distance, should be taken when driving a heavily
loaded vehicle.
Your vehicle can haul more cargo and people than most passenger cars.
Depending upon the type and placement of the load, hauling cargo and
people may raise the center of gravity of the vehicle.
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TRAILER TOWING
Your vehicle may tow a class I, II or III trailer, provided the maximum
trailer weight is less than or equal to the maximum trailer weight listed
for your engine and rear axle ratio on the following charts.
Do not exceed trailer weight of 5,000 lb (2,268 kg) when towing with
bumper only.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Distribute the load so that only 10–15% of the total is on the tongue. Tie
down the load so that it does not shift and change the weight on the
hitch.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
For load specification terms found on the label, refer toVehicle loading
– with and without a trailerin this chapter. Remember to figure in the
tongue load of your loaded vehicle when figuring the total weight.
WARNING:Do not exceed the GVWR or the GAWR specified on
the certification label.
WARNING:Towing trailers beyond the maximum recommended
gross trailer weight exceeds the limit of the vehicle and could
result in engine damage, transmission damage, structural damage, loss
of vehicle control, vehicle rollover and personal injury.
EngineRear axle
ratioMaximum
GCWR - lb (kg)Maximum Trailer
Weight - lb (kg)
E-150 Regular/Rec/Crew Van
4.6L 3.73 11500 (5216) 6000 (2722)
4.6L 4.10 12000 (5443) 6500 (2948)
5.4L 3.73/4.10 13000 (5897) 7500 (3402)
E-150 Extended Van
4.6L 3.73 11500 (5216) 5900 (2676)
4.6L 4.10 12000 (5443) 6400 (2903)
5.4L 3.73/4.10 13000 (5897) 7300 (3311)
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EngineRear axle
ratioMaximum
GCWR - lb (kg)Maximum Trailer
Weight - lb (kg)
E-150 Regular Wagon (7/8 Passenger)
4.6L 3.73 11500 (5216) 5600 (2540)
4.6L 4.10 12000 (5443) 6100 (2767)
5.4L 3.73/4.10 13000 (5897) 7000 (3175)
E-250 Regular/Rec/Crew Van
4.6L 3.73 11500 (5216) 6000 (2722)
4.6L 4.10 12000 (5443) 6500 (2948)
5.4L 3.73/4.10 13000 (5897) 7400 (3357)
E-250 Extended/Rec/Crew Van
4.6L 3.73 11500 (5216) 5900 (2540)
4.6L 4.10 12000 (5443) 6400 (2903)
5.4L 3.73/4.10 13000 (5897) 7300 (3311)
E-350 Regular/Rec/Crew Van
5.4L 3.73/4.10 13000 (5897) 7400 (3357)
6.8L 3.73 15000 (6804) 9100 (4128)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Extended/Rec/Crew Van
5.4L 3.73 13000 (5897) 7200 (3266)
6.8L 3.73 15000 (6804) 9000 (4082)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Regular Wagon (11/12 Passenger)
5.4L 3.73/4.10 13000 (5896) 6700 (3039)
6.8L 3.73 15000 (6804) 8500 (3856)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Extended Wagon (11 Passenger)
5.4L 3.73/4.10 13000 (5896) 6500 (2948)
6.8L 3.73 15000 (6804) 8300 (3765)
6.8L 4.10 18500 (8391) 10000 (4536)
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EngineRear axle
ratioMaximum
GCWR - lb (kg)Maximum Trailer
Weight - lb (kg)
E-350 Extended Wagon (14/15 Passenger)
5.4L 3.73/4.10 13000 (5896) 6300 (2858)
6.8L 3.73 15000 (6804) 8100 (3674)
6.8L 4.10 18500 (8391) 10000 (4536)
E-250 Cutaway Single Rear Wheel (SRW)
4.6L 4.10 12000 (5443) 7500 (3402)
E-350 Extended Cutaway Single Rear Wheel (SRW)
5.4L 4.10 10600 (4808) 5700 (2585)
E-350 Cutaway Single Rear Wheel (SRW) 138” Wheelbase
5.4L 3.73 9600 (4354) 4700 (2132)
5.4L 4.10 13000 (5896) 8000 (3629)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Cutaway Dual Rear Wheel (DRW) 138” Wheelbase
5.4L 3.73 10050 (4763) 4900 (2223)
5.4L 4.10 13000 (5897) 7700 (3493)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Cutaway Single Rear Wheel (SRW) 158” Wheelbase
5.4L 3.73 9600 (4354) 4600 (2087)
5.4L 4.10 13000 (5896) 8000 (3629)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Cutaway Dual Rear Wheel (DRW) 158”/176” Wheelbase
5.4L 3.73 10050 (4763) 4800 (2177)
5.4L 4.10 13000 (5897) 7700 (3493)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Stripped Chassis Single Rear Wheel (SRW) 138”
Wheelbase
5.4L 3.73/4.10 13000 (5897) 8700 (3946)
E-350 Stripped Chassis Single Rear Wheel (SRW) 158”
Wheelbase
5.4L 3.73/4.10 13000 (5897) 8600 (3901)
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EngineRear axle
ratioMaximum
GCWR - lb (kg)Maximum Trailer
Weight - lb (kg)
E-350 Stripped Chassis Dual Rear Wheel (DRW) 138” Wheelbase
5.4L 4.10 13000 (5897) 8400 (3810)
6.8L 4.10 18500 (8391) 10000 (4536)
E-350 Stripped Chassis Dual Rear Wheel (DRW) 158”/176”
Wheelbase
5.4L 4.10 13000 (5897) 8300 (3765)
6.8L 4.10 18500 (8391) 10000 (4536)
E-450 Cutaway
5.4L 4.56 14050 (6373) 8500 (3856)
6.8L 4.56 22000 (9979) 10000 (4536)
E-450 Stripped Chassis
5.4L 4.56 14050 (6373) 9200 (4173)
6.8L 4.56 22000 (9979) 10000 (4536)
Notes:
•Maximum trailer weight for all cutaway vehicles must be calculated by
subtracting the weight of the vehicle (including incomplete vehicle
weight and payload which includes second unit body weight, cargo
and passengers) from the GCW; otherwise, maximum trailer weight is
10,000 lb (4,536 kg).
•For high altitude operation reduce GCWR by 2% per 1,000 ft (300 m)
elevation.
•To determine the maximum trailer weight designed for your particular
vehicle as equipped, follow the instructions inVehicle loading - with
and without a trailerearlier in this chapter.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. Contact your authorized dealer or a
reliable trailer dealer as soon as possible if you require assistance.
Hitches
Do not use or install a hitch that clamps onto the vehicle’s bumper or to
the axle. An underbody hitch is acceptable if it is installed properly.
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Weight-distributing hitch
When hooking-up a trailer using a weight-distributing hitch, always use
the following procedure:
1. Park the vehicle (without the trailer) on a level surface.
2. Measure the height of the top of the front wheel opening on the
fender, this is H1.
3. Attach the trailer to the vehicle without the weight distributing bars
connected.
4. Measure the height of the top of the front wheel opening on the
fender a second time, this is H2.
5. Install and adjust the tension in the weight distributing bars so that
the height of the front fender is approximately halfway between H1 and
H2.
6. Check that the trailer is level. If not level, remove the trailer, adjust
the ball height accordingly, and repeat steps3–6.
WARNING:Do not adjust a weight-distributing hitch to any
position where the rear bumper of the vehicle is higher than it
was before attaching the trailer. Doing so will defeat the function of
the weight-distributing hitch, which may cause unpredictable handling,
and could result in serious personal injury.
Using a step bumper (if equipped)
The rear bumper is equipped with an integral hitch and only requires a
ball with a one inch (25.4 mm) shank diameter. The bumper has a
5,000 lb (2,270 kg) trailer weight and 500 lb (227 kg) tongue weight
capacity.
If it is necessary to relocate the trailer hitch ball position, a
frame-mounted trailer hitch must be installed.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. To connect the trailer’s safety chains, cross the
chains under the trailer tongue and allow slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
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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.
WARNING: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.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Integrated trailer brake controller (if equipped)
Your vehicle may be equipped with a fully integrated electronic trailer
brake controller (TBC). When used properly, the TBC helps ensure
smooth and effective trailer braking by powering the trailer’s electric
brakes with a proportional output based on the towing vehicle’s brake
pressure.
WARNING:The Ford TBC has only been verified to be
compatible with trailers having electric-actuated drum brakes
(one to four axles) and not hydraulic surge or electric-over-hydraulic
types. It is the responsibility of the customer to ensure that the trailer
brakes are adjusted appropriately, functioning normally and all electric
connections are properly made. Failure to do so may result in loss of
vehicle control, crash or serious injury.
The TBC user interface consists of
the following:
1.+/- (GAIN adjustment
buttons):Pressing these buttons
adjusts the TBC’s power output to
the trailer brakes (in
0.5 increments). The GAIN setting
can be increased to a maximum of
10.0 or decreased to a minimum of 0 (no trailer braking). Pressing and
holding a button raises or lowers the setting continuously. The gain
setting displays in the message center as follows: TBC GAIN = XX.X.
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The trailer brake controller (TBC) is designed to display three items of
information in the instrument cluster message center. These are: gain
setting, output bar graph, and trailer connectivity status. They appear in
the message center as follows:
•TBC GAIN = XX.X NO TRAILER:The instrument cluster message
center displays the current gain setting during a given ignition cycle
and when adjusting the gain. This message is also displayed during
manual activation without a trailer connected or when gain
adjustments are made with no trailer connected.
•TBC GAIN = XX.X OUTPUT = //////:When the vehicle’s brake pedal
is pushed, or when the manual control is activated, bar indicators
illuminate in the instrument cluster message center to indicate the
amount of power going to the trailer brakes relative to the brake pedal
or manual control input. One bar indicates the least amount of output
with six bars indicating maximum output.
•TRAILER CONNECTED:This message is displayed when a correct
trailer wiring connection (a trailer with electric trailer brakes) has
been sensed during a given ignition cycle.
•TRAILER DISCONNECTED:This message is displayed and
accompanied by a single chime, when a trailer connection was
determined and then a disconnection, either intentionally or
unintentionally, has been sensed during a given ignition cycle. It is also
displayed if a truck or trailer wiring fault occurs causing the trailer to
appear disconnected. This message is also displayed during manual
activation without a trailer connected.
2.Manual control lever:Slide the control lever to the left to activate
power to the trailer’s electric brakes independent of the tow vehicle’s
brakes (see the followingProcedure for adjusting GAINsection for
instructions on proper use of this feature). If the manual control is
activated while the brake is also applied, the greater of the two inputs
determines the power sent to the trailer brakes.
•Stop lamps:Activating the TBC manual control lever illuminates both
the trailer brake lamps and the tow vehicle brake lamps except the
center high-mount stop lamp (presuming proper trailer electrical
connection). Pressing the vehicle brake pedal also illuminates both
trailer and vehicle brake lamps.
Procedure for adjusting GAIN:
The GAIN setting is used to set the TBC for the specific towing
condition and should be changed as towing conditions change. Changes
to towing conditions include trailer load, vehicle load, road conditions
and weather.
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The GAIN should be set to provide the maximum trailer braking
assistance while ensuring the trailer wheels do not lock when braking;
locked trailer wheels may lead to trailer instability.
Note:This should only be performed in a traffic-free environment at
speeds of approximately 20–25 mph (30–40 km/h).
1. Make sure the trailer brakes are in good working condition, functioning
normally and properly adjusted. See your trailer dealer if necessary.
2. Hook up the trailer and make the electrical connections according to
the trailer manufacturer’s instructions.
3. When a trailer with electric brakes is plugged in, theTRAILER
CONNECTEDmessage displays in the instrument cluster message
center.
4. Use the GAIN adjustment (+/-) buttons to increase or decrease the
GAIN setting to the desired starting point. A GAIN setting of 6.0 is a
good starting point for heavier loads.
5. In a traffic-free environment, tow the trailer on a dry, level surface at
a speed of 20–25 mph (30–40 km/h) and squeeze the manual control
lever completely.
6. If the trailer wheels lock up (indicated by squealing tires), reduce the
GAIN setting; if the trailer wheels turn freely, increase the GAIN setting.
Repeat Steps 5 and 6 until the GAIN setting is at a point just below
trailer wheel lock-up. If towing a heavier trailer, trailer wheel lock-up
may not be attainable even with the maximum GAIN setting of 10.
Explanation of instrument cluster warning messages:
The TBC interacts with the instrument cluster message center to display
the following messages:
TRAILER BRAKE MODULE FAULT:This message is displayed and
accompanied by a single chime, in response to faults sensed by the TBC.
In the event this message is seen, please contact your authorized dealer
as soon as possible for diagnosis and repair. The TBC may still function,
but performance may be degraded.
WIRING FAULT ON TRAILER:This message is displayed when a
Short circuit on the electric brake output wirehas occurred. If the
WIRING FAULT ON TRAILERmessage is displayed and accompanied
by a single chime, with no trailer connected, the problem is with the
vehicle wiring from the TBC to the 7–pin connector at the bumper. If the
message is only displayed with a trailer connected, the problem is related
to the trailer wiring; consult your trailer dealer for assistance. This can
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be a short to ground (i.e., chaffed wire) or a short to voltage (i.e., pulled
pin on trailer emergency break-away battery) or trailer brakes drawing
too much current.
Note:
Your TBC can be diagnosed by your authorized dealer to determine
exactly which trailer fault has occurred; however, if the fault is with the
trailer this diagnosis isnotcovered under your Ford warranty.
Points to Remember:
•Remember to adjust gain setting before using the TBC for the first
time.
•Readjust gain setting on the TBC (according to procedure above)
whenever road, weather and trailer or vehicle loading conditions
change from those that existed when the gain was initially set.
•The sliding lever on the TBC should be used only for manual
activation of trailer brakes to assist with proper adjustment of the
GAIN. Misuse, such as application during trailer sway, could cause
instability of trailer and/or tow vehicle.
•
Avoid towing in adverse weather conditions. The TBC does not provide
anti-lock control of the trailer wheels. Trailer wheels can lock up on
slippery surfaces, resulting in reduced stability of trailer and tow vehicle.
•The TBC is equipped with a feature which reduces output at vehicle
speeds below 11 mph (18 km/h) so trailer and vehicle braking is not
jerky or harsh. This feature is only available when applying the brakes
using the vehicle’s brake pedal, not the TBC.
•The TBC interacts with the brake system of the vehicle, including
ABS, in order to reduce the likelihood of trailer wheel lock-up;
therefore, if these systems are not functioning properly, the TBC may
not function at full performance.
•Your vehicle’s brake system and the trailer brake system work
independently of each other; changing the GAIN setting on the TBC
does not affect the operation of your vehicle’s brakes whether a trailer
is attached or not.
•When the vehicle is turned off, the TBC output is disabled and the
display is shut down; turning the ignition from off to on awakens the
TBC module.
•The TBC is only a factory- or dealer-installed item; Ford is not
responsible for warranty or performance of the TBC due to misuse or
customer installation.
•Do not attempt removal of the TBC without consulting the
Workshop Manual; damage to the unit may result.
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