FORD BRONCO 1988 Owners Manual

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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222
*
[DR31601( ALL)03/91]
q
Subtract the total weight of passengers, driver
and optional equipment added by the factory,
dealer or aftermarket supplier to determine
how much cargo weight you can carry.
*
[DR31650(B FM)03/94]
half page art:0020837-B
Sample label
*
[DR31702( ALL)03/91]
If you suspect that your payload is excessive,
have your vehicle weighed at a highway weigh
station or appropriate commercial facility. Weigh
the total vehicle and trailer (if applicable), then
separately weigh the vehicle at the front and
rear wheels. And finally, weigh the trailer
separately if applicable.
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223
*
[DR31751( ALL)03/91]
Use this chart to perform your calculations.
*
[DR31801(B FM)03/94]
twenty-six pica chart:0020838-D
*
[DR31851( ALL)03/91]
NOTE: The Truck Safety Compliance
Certification Label has two weight
related entries that sometimes cause
confusion.
*
[DR31901( ALL)10/94]
Front Axle Reserve Capacity in Pounds:On the
sample label, this value is given as 83 pounds
(38 kgs). Does this mean that you are limited to
adding only 83 pounds (38 kgs) of accessories to
the front end capacity? Not exactly. This says
that you can load 83 pounds (38 kgs) of options
on the front axle, add 150 pound (68 kgs)
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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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226 [DR33700(B )03/93]
thirty pica chart:0020159-C
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227 [DR33750(B )06/92]
ten pica chart:0020470-B
*
[DR33780(B )06/94]
Automatic Transmissions
[DR33800(B )04/94]
twenty-two pica chart:0020160-EFile:ltdrb.ex
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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.
File:ltdrb.ex
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