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Trailer Winching tips
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Tips on selecting the proper
winch for your load and getting the load on your trailer safely
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Choose the
right winch.
In most Trailer applications, you're dealing with a rolling load
rather than pulling a dead weight. It is often said that a person
can probably push a vehicle but most can't lift it. Therefore, you
need to size the winch to the rolling load. Then you should select
those winch features that you find most beneficial and that allow
you to load the trailer safely by yourself. Superwinch has
combined the experience of manufacturing over 2 million winches
with feedback from racers and collectors alike over the past 30
years.Install it properly.
First choose an installation site accessible to you. Align an
unobstructed path to the car that you are loading. Prevent any
metal-to-metal contact with the wire rope. Mount the winch close
enough to the trailer's front to pull the vehicle completely on.
If it's mounted under something, such as a toolbox, leave enough
space to access the winch.
Consider a pulley block.
With a hook for mounting and a pulley for the wire rope, a pulley
block lets you offset the winch but retain a straight shot. A
pulley block can also be used to nearly double the winch's
capacity by simply attaching the pulley block's hook directly to
the load and the winch's hook to a sturdy mount near the winch.
Wire it right.
A trailer wiring kit, like the kind available from Superwinch,
makes it easy to get power for the winch from the tow vehicle's
battery. To maintain electrical performance from the battery to
the winch, |
we recommend dropping 3
wire sizes for every doubling of the length of the standard wire
harness. Example: No. 6 to No. 3 or 2 gauge. A Quick disconnect
plug for the truck comes prewired with a negative lead. Simply
install the special terminal to the positive side of the quick
disconnect and position the plug at the rear of the truck ,
perhaps under the bumper.
If your tow vehicle isn't equipped with a towing package that
includes a dual-wire ground setup, Superwinch recommends
installing the negative battery terminal strap provided with their
winches. Take care that your wiring has fully secured leads which
are clear of hot or moving parts.
Know your rolling weight.
For safe and sure loading, Superwinch recommends following the car
and trailer load chart. Find the column that matches your
percentage of slope or grade. Determine the slope by dividing the
amount of your ramp's rise by the ramp's length. Match the slope
with the nearest weight of your car, always rounding up, and
locate the corresponding winch Rated Line Pull (RLP). This guide
is recommended for average vehicle rolling loads. Some
applications may require larger winches than indicated.
Accessorize for safety.
Maximizing winch safety and performance is as simple as attaching
the proper accessories. Superwinch offers roller fairleads,
recovery straps, tie downs, gloves, and many more accessories
designed for your special needs. |
Car
Trailers/Rolling Weight
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Grade*
|
| Rated Line Pull (RLP) |
10% |
20% |
40% |
60% |
80% |
100% |
| 1,000 lb. |
5,025 |
3,401 |
2,155 |
1,664 |
1,422 |
1,285 |
| 1,500 lb. |
7,538 |
5,102 |
3,233 |
2,496 |
2,134 |
1,928 |
| 2,000 lb. |
10,050 |
6,803 |
6,347 |
2,816 |
2,407 |
2,175 |
| 2,500 lb. |
12,563 |
8,503 |
5,388 |
4,160 |
3,556 |
3,213 |
| 3,500 lb. |
17,588 |
11,905 |
7,543 |
5,824 |
4,979 |
4,499 |
| 4,500 lb. |
22,613 |
15,306 |
9,698 |
7,488 |
6,401 |
5,784 |
| 6,000 lb. |
30,151 |
20,408 |
12,931 |
9,983 |
8,535 |
7,712 |
| 9,000 lb. |
45,226 |
30,612 |
19,397 |
14,975 |
12,802 |
11,568 |
*A 10% grade is a rise of one foot in ten feet.
*Winches are not intended as a load securing device
Example of a S4500 and the effect of each layer on Rated Line Pull
(RLP) and rolling loads
| S4500 |
RLP |
10% |
20% |
40% |
60% |
80% |
100% |
| 1st Layer |
4500 |
22613 |
15306 |
9698 |
7488 |
6401 |
5784 |
| 2nd Layer |
3808 |
19134 |
12951 |
8206 |
6336 |
5416 |
4894 |
| 3rd Layer |
3300 |
16583 |
11224 |
7112 |
5491 |
4694 |
4242 |
| 4th Layer |
2912 |
14632 |
9904 |
6275 |
4845 |
4142 |
3743 |
| 5th Layer |
2605 |
13092 |
8861 |
5615 |
4335 |
3706 |
3349 |
| 6th Layer |
2357 |
11845 |
8017 |
5080 |
3922 |
3353 |
3030 |
| 7th Layer |
2152 |
10815 |
7320 |
4638 |
3581 |
3061 |
2766 |
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© Copyright 2000-2004, Bob's Services, Inc.
All rights reserved.
The logos, names, and photos used in these pages are the property of their
respective owners.
Last revised: April 25, 2004 01:03 PM
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