Trailer towing FORD BRONCO 1996 5.G Owners Manual

215
*
[DR28250(B F )03/91]
Heavy duty front suspension package
(option)
*
[DR28301(B F )03/91]
This optional front suspension package is
designed to handle the additional loads that will
be imposed on the vehicle by adding aftermarket
equipment, such as a snowplow. Refer to the
Safety Compliance Certification Label for details.
*
[DR28750( ALL)01/93]
Vehicle/Trailer Loads
*
[DR28801( ALL)06/92]
All vehicles may tow a Class I trailer provided
the Gross Combined Weight (GCW) is less than
or equal to the GVWR shown on the Safety
Compliance Certification Label. For heavier
trailer applications, refer to the towing
information found later in this chapter.
*
[DR28950(BEF )02/95]
Trailer Towing (may require trailer tow
option package)
*
[DR29001( ALL)03/91]
Towing a trailer puts additional loads on your
vehicle's engine, transmission, axle, brakes, tires
and suspension. For your safety and for the
good of your vehicle, use the right equipment
for the type of trailer you tow.
[DR29010(B F )05/95]
If your trailer is equipped with electric brakes,
auxiliary battery, or back-up lamps, the optional
7 wire trailer towing electrical hook-up will be
required on the vehicle.
*
[DR29025( ALL)09/92]
Your trailer towing capability will vary based on
the standard and optional equipment on your
vehicle. Refer to the followingVehicle
Loading/Towing Informationand the Trailer
Towing Tables to determine the specific towing
capability of your vehicle.
*
[DR29050( ALL)02/92]
q
Stay within the load limits when you tow.
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216
*
[DR29101( ALL)01/95]
q
Carefully and thoroughly prepare your
vehicle for towing, making sure to use the
right equipment and to attach it properly.
(SeePreparing to Towin this chapter.)
*
[DR29151( ALL)01/95]
q
Use extra caution when driving your vehicle
while you tow. (SeeDriving while you towin
this chapter.)
*
[DR29201( ALL)01/95]
q
Service your vehicle more frequently if you
tow a trailer. (SeeServicing your vehicle if you
towin this chapter.)
*
[DR29350( ALL)05/94]
Do not tow a trailer until your vehicle has been
driven at least 500 miles (800 km).
*
[DR29401( ALL)06/92]
Vehicle Loading/Towing
Information
*
[DR29450(BEF )03/91]
Your vehicle's load capacity is designated by
weight, not volume, so you cannot necessarily
use all available space with large or heavy loads.
Maximum safe vehicle weights as well as tire,
rim sizes and inflation pressures are specified for
your vehicle at the assembly plant on the Safety
Compliance Certification Label. The Certification
Label is located on the left front door lock facing
or the door latch post pillar.
*
[DR29501( ALL)12/91]
Trucks, unlike passenger cars, are basically
custom vehicles designed to carry a load. Most
owners start with a base vehicle and add
production and dealer installed and/or
aftermarket components to suit their tastes and
purposes. Even trucks that are purchased for
personal transportation only are likely to have
considerable optional equipment, such as step
bumpers and light bars, for example.
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218
*
[DR29950(BEF )06/92]
Do not use the sample numbers on the Safety
Compliance Certification Label shown. Use the
actual numbers from your vehicle certification
label.
*
[DR30001( ALL)06/92]
Understanding Loading/Towing
Information
*
[DR30050( ALL)03/94]
The following terms are used to describe the
ability to carry or tow a load:
*
[DR30101( ALL)01/93]
q
Base Curb Weight
*
[DR30150( ALL)01/93]
q
Payload
*
[DR30200( ALL)01/93]
q
GVW (Gross Vehicle Weight)
*
[DR30250( ALL)01/93]
q
GVWR (Gross Vehicle Weight Rating)
*
[DR30301( ALL)01/93]
q
GAWR (Gross Axle Weight Rating)
*
[DR30310( ALL)06/92]
q
GCWR (Gross Combined Weight Rating)
*
[DR30320( ALL)06/92]
q
Maximum Trailer Weight Rating
*
[DR30330( ALL)06/92]
q
Maximum Trailer Weight
*
[DR30340( ALL)06/92]
q
Trailer Weight Range
*
[DR30351( ALL)03/91]
Base Curb Weight
*
[DR30401( ALL)03/94]
The Base Curb Weight is the weight of the
vehicle including fuel, coolants, lubricants,
emergency tools, spare wheel and tire. It also
includes any equipment that isstandardon that
model. It does not include passengers, cargo or
optional equipment installed by factory, dealer,
aftermarket supplier or customer.
*
[DR30451( ALL)03/91]
Payload
*
[DR30501( ALL)03/91]
Payload is the combined, maximum allowable
weight of cargo, occupants and optional
equipment that the truck is designed to carry. It
is Gross Vehicle Weight Rating minus the base
curb weight.
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220Overloading a vehicle punishes components and
can lead to shortened service life or outright
failure.
*
[DR31001( ALL)06/92]
The capacity of the tires is included as part of
the axle and suspension system, which is to be
considered when determining the lowest rated
component. Tires are rated to carry a specific
maximum load at a specific maximum tire
pressure.
*
[DR31050( ALL)06/92]
Passenger car type tires when installed on light
trucks and multipurpose passenger vehicles are
rated at 10% lower load carrying capacity due to
the differences in vehicle usages.
*
[DR31101(BEF )07/92]
The vehicle must not be loaded to both the front
and rear GAWR because the GVWR will be
exceeded. The GAWR of the front and rear axles
exceed the GVWR when added together to allow
flexibility in fore and aft loading of cargo.
*
[DR31110( ALL)06/92]
With the tires inflated to the specified pressure
the total weight of your vehicle must not exceed
the GVWR and GAWR specified on the Safety
Compliance Certification Label. This includes full
fuel tank(s), vehicle equipment, and occupants as
well as the cargo load.
*
[DR31120( ALL)06/92]
GCWR (Gross Combined Weight Rating)
*
[DR31130( ALL)06/92]
GCWR is the maximum combined weight of the
towing vehicle (including passengers and cargo)
and the loaded trailer. The GCWR is specified
by the manufacturer to indicate the combined
maximum loaded weight that the vehicle is
designed to tow.
*
[DR31140( ALL)06/92]
Maximum Trailer Weight Rating
*
[DR31150( ALL)06/92]
The maximum weight of a trailer the vehicle is
permitted to tow. The maximum trailer weight
rating is specified by the manufacturer and is
determined by subtracting the vehicle curb
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221
weight for each engine/transmission
combination, any required option weight for
trailer towing and the weight of the driver from
the GCWR for the towing vehicle.
*
[DR31160( ALL)06/92]
Maximum Trailer Weight
*
[DR31170( ALL)06/92]
The maximum weight of a trailer the loaded
vehicle is permitted to tow. The maximum
weight of the trailer is determined by subtracting
the weight of the loaded towing
vehicle (including passengers and cargo) from
the GCWR for the towing vehicle.
*
[DR31180( ALL)06/92]
Trailer Weight Range
*
[DR31190( ALL)06/92]
The trailer weight range is a specified range by
weight, which the trailer must fall within,
ranging from zero to the maximum trailer
weight rating.
*
[DR31301( ALL)03/91]
Calculating The Load
*
[DR31350( ALL)03/91]
To know how much weight your vehicle can
carry:
*
[DR31401( ALL)12/91]
q
Obtain ratings from your Safety Compliance
Certification Label, and the Trailer towing
specifications in the owner guide (refer to the
Index)
*
[DR31450( ALL)09/93]
Ð Refer to the following sample illustration
to locate the various ratings on your
Safety Compliance Certification Label.
*
[DR31501( ALL)03/91]
Ð If you do not plan on pulling a trailer, do
not include these ratings into your
calculations.
*
[DR31550( ALL)03/91]
q
Weigh your vehicle as you customarily
operate the vehicle without cargo.
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224passengers to all seating positions, and add
evenly distributed cargo in the box without
exceeding the GAWR F.
*
[DR31950( ALL)06/92]
It is possible to hang heavier equipment on the
front as long as the vehicle owner/operator
compensates. This can be accomplished, if
necessary, by carrying fewer passengers, less
cargo or positioning cargo more toward the rear,
which has the effect of reducing the load on the
front. Keep in mind that the GAWR F, GAWR
R, nor the GVWR should ever be exceeded.
*
[DR32001( ALL)05/91]
Total Accessory Reserve Capacity in Pounds:
On the sample label this value is given as 112
pounds (51 kgs). This is a number that is related
to government crash test standards, and only
indirectly reflects on the amount of accessory
weight that can be carried.
*
[DR32050( ALL)06/94]
In the case of both these numbers (83 and 112
pounds) (38 and 51 kgs), the important thing to
remember is that for safe operation, an
owner/operator should calculate the amount and
the distribution of all weights (passengers,
accessory equipment and cargo). These combined
weights should fall below the vehicle's GVWR
and GAWR.
*
[DR32201( ALL)01/93]
Trailers
*
[DR32251( ALL)10/94]
Towing a trailer safely means having the proper
weight on the tongue (usually 10% of the trailer
weight). Load-equalizing hitches on large rigs
may transfer weight to each of the vehicle's
axles. This weight must be included in capacity
calculations when determining if the vehicle is
loaded within safe limits.
*
[DR32301( ALL)01/95]
If your vehicle exceeds the GVWR, remove cargo
from your vehicle accordingly. If your vehicle
exceeds the GAWR for either axle, shift the load
or remove cargo accordingly.
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225
*
[DR32350( ALL)02/95]
RWARNING
If the GVWR or the GAWR specified on
the Safety Compliance Certification Label
is exceeded, your vehicle may be damaged
or you may lose control and injure
someone.
*
[DR32401( ALL)05/95]
RWARNING
Towing trailers beyond the maximum
recommended gross trailer weight could
result in engine damage, transmission/axle
damage, structural damage, loss of control,
and personal injury.
*
[DR32450( ALL)03/91]
Using the Safety Compliance Certification Label
find the axle code number and the engine type
for your vehicle.
*
[DR32500( ALL)03/91]
Use the appropriate Maximum Gross Combined
Weight Rating (GCWR) chart to find the
Maximum GCWR for your type engine and rear
axle ratio.
*
[DR32551( ALL)03/91]
Subtract your Loaded Vehicle Weight from the
Maximum GCWR found in the chart. This is the
maximum trailer weight your vehicle can tow
and must fall below the maximum shown under
Trailer Weight on the chart.
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228
*
[DR33880(B )04/89]
Manual Transmissions
[DR33900(B )03/94]
twenty pica chart:0020161-D*
[DR35500(BEF )02/91]
Required equipment
*
[DR35700(BEF )01/89]
q
Super Cooling is required with trailers over
2,000 lb (907 kg).
*
[DR35800(BEF )06/92]
q
Super Cooling and Handling/Suspension
Package or trailer towing package is required
with trailers over 3,500 lb (1587 kg).
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229
*
[DR36500( ALL)01/95]
Preparing to Tow
*
[DR36550( ALL)01/95]
For your safety and for the good of your
vehicle, use the right equipment for the type of
trailer you tow. Also, make sure that all towing
equipment is properly attached to your vehicle.
If you are not certain that you are using the
right equipment in the proper manner, see your
Ford or Lincoln-Mercury dealer.
*
[DR36600( ALL)01/93]
Hitches
*
[DR36800(B F )12/91]
Do not install a single or multi-clamp type
bumper hitch, or a hitch which attaches to the
axle. Underbody mounted hitches are acceptable
if installed properly. Follow towing instructions
of a reputable rental agency.
*
[DR37000( ALL)12/92]
Whenever a trailer hitch and hardware are
removed, make sure all mounting holes in the
underbody are properly sealed to prevent
noxious gases or water from entering.
[DR37100(BE )03/93]
Trailer Tow/Step bumper
[DR37200(B )03/91]
The step bumper has a built-in hitch and only
requires a ball with a one inch shank diameter.
The step bumper has a limited Class III
capability (4,000 lb/1814 kg trailer weight and
400 lb/180 kg tongue weight).
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230
*
[DR37550(B F )03/91]
NOTE: The rated capacities (as shown in this
guide) for trailer towing with the
factory bumper are only valid when
the trailer hitch ball is installed
directly into the ball hole in the
bumper. Addition of bracketry to either
lower the hitch ball position or extend
the hitch ball rearward will
significantly increase the loads on the
bumper and its attachments. This can
result in the failure of the bumper or
the bumper attachments. Use of any
type of hitch extensions should be
considered abuse.
*
[DR37575(B F )03/91]
If it is necessary to relocate the trailer hitch ball
position a frame mounted trailer hitch must be
installed.
*
[DR37800( ALL)11/89]
Safety Chains
*
[DR37900( ALL)12/92]
Always use safety chains between your vehicle
and trailer. Cross chains under the trailer tongue
and allow slack for turning corners. Connect
safety chains to the vehicle frame or hook
retainers. Never attach chains to the bumper.
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