OKoffroad.com — 4x4 Editorial
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Synthetic Winch Rope
. More Winch Rope Info 

reprinted with permission  

Based on experience gained during off-road challenges and adventures since the introduction of synthetic winch rope to the 4X4 market, several specific end-use conditions have been identified. The presence of these conditions can best be determined by periodic inspection of the lines and the hardware on which it operates.

Before mounting your new winch rope, carefully inspect the winch drum, winch flanges, and any winding aids, rope guides, or running surfaces where the rope comes in contact with metal portions of the vehicle. Feel these surfaces by hand to ensure they are free from nicks, burrs, rust, or sharp edges. All running surfaces should be rounded to at least the same diameter as the rope. Check that the drum surface is also free of gouges. It should be smooth, but not too smooth, as the rope needs a little friction to prevent it from turning freely on the drum. Periodic checks of the winch and winch mount area is recommended.

A Note on the Fairlead:
We recommend not to use a roller fairlead with synthetic winch rope. Why? For many reasons:

- Winch rope is designed to flatten-out under load, and therefor could get pinched in the corners of a roller fairlead.
- A steel roller (even a new one) gets weatherized and rusted quickly (see image below) and is not good for the rope.
- Synthetic winch rope is actually too smooth to roll the roller.
- An old roller fairlead is not good for the rope, especially if scuffed.
- A roller fairlead is much heavier.
- A roller fairlead sticks out further, reducing approach angle.
- Bolts, or spindles with C-clips on a roller might cause a winch rope to snag. Our aluminum fairlead has nothing in front for the rope to catch on.

Example of a badly weathered & rusted roller fairlead

(click image for large view)

We strongly recommend upgrading to a billet aluminum Hawse fairlead to prevent damage from a scuffed roller fairlead.

A Note on the Winchrope:
It should be noted that normal light fuzzing of the winch rope surface is to be expected in normal use. This light fuzzing does not reduce the rated strength of the line, but actually creates a layer on the rope that protects it. External protection against chafing (e.g. our included 10' abrasion guard) should always be used where the rope will contact sharp or abrasive objects when winching.

Repeated lateral abrasion against sharp edges is to be avoided. While HMPE is one of the most cut-resistant polymers available, hard rough-surfaced materials (rocks, sharp metal) can prove to be stronger in a long-duration abrasion event. Signs of excess abrasion include strand pull-outs, heavy chafing, and/or cut strands in a single area. Our aluminum Hawse fairlead is recommended to avoid metal abrasion from a scuffed and/or weatherized roller fairlead.

A Note on Salt Water:
"Salt water has no effect on synthetic winch rope. It is a closed fiber rope so the salt water does not absorb or penetrate into the fibers, so the strength retention is the same as if the rope was never in water or salt water."

A Note on Winchrope & Snow Plowing:
If in use for snowplow lifting do not use abrasion guard at the front of the rope. Slide it down the line out of the way and spool onto drum.

A Note on the Winch Hook Hammerlock:

(click image for large view)
Our Hammerlocks are easy to assemble, and as the name suggests require a hammer to do so. Think of this device as a simple hinge, and every hinge has a center pin. Click HERE for installation instructions!

Using your winch in accordance with the manufacturer’s recommendations should cause no overheating of your winch rope. It should be noted that sometimes the rope remaining on the winch drum might appear to be fused, melted or deformed. However, this is not caused by overheating but is a result of compression when the winch line is heavily loaded. Flexing the rope by hand to separate the strands can soften up this stiff section, a process that causes no damage to the fibers.

. Dyneema Fiber Rope 
It'll stop a bullet!


reprinted with permission  


Click Here for more technical info
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(click image for large view)

Installing the Rope on your winch:
We recommend installing the rope on the winch in an open area (trail or field) with a suitable anchor point (tree) available. Attach the terminal end of the rope to the drum with the winch set screw. Note that the surface and sides of the drum should be free of burrs of any kind, but should also not be so smooth, with a glossy surface that the rope will not grab on the surface of the drum. Ideally, it should have a matt, or somewhat roughened finish. Go over it with a piece of emery paper if necessary to achieve this non-glossy finish. With tension, spool on the first layer, plus one or two wraps. Then with the hook attached to a tree saver around the anchor point (tree) a suitable distance from the vehicle, use the rolling resistance of the vehicle (in neutral with emergency brake off), and spool the rope onto the drum, pulling the vehicle towards the anchor point.

This is not the correct way to install winchrope

(click image for large view)

We recommend not spooling the rope in to where the hook and thimble are up against the aluminum Hawse fairlead, which might cause the polished aluminum surface to be scratched from the steel thimble and/or hook. Instead we recommend attaching the hook onto one of the front recovery points to the left or right on the front bumper. When doing this, use a D-ring shackle in a recovery point designed for a D-shackle. Do not slip the hook into it (square peg in a round hole - we've seen people do it), as it will prevent the hook from pivoting in the right direction when spooled in, and could lead to the thimble getting distorted.

A Note on the Terminal End:
The terminal end (drum connector) is there to prevent the rope from unraveling. It is not a load-bearing tie-down. The terminal end is professionally glued and crimped, and is designed to withstand a certain amount of pull. Improper installation of the rope, or spooling out to the last layer of drum, causing a full load pull to be exerted on the terminal end, however, will cause the terminal end to release the rope, as it is designed to do. This set-up prevents the winch set screw from pulling out of the drum.

The terminal end installed on the drum-end of the rope is designed for many popular winch applications. Our 3/16" ATV winchrope is assembled with heat-shrunk drum end (no terminal end) for ease of mounting. If your winch has another typed of tie-down method - no problem - give us a call, and we'll explain how to modify it for your application.

A Note on the Winchrope Retainer:

(click image for large view)
Our winchrope retainer is a simple device which makes the installation of winchrope on a winch drum totally idiotproof (see winchrope installation instructions below). A common installation fault is not using a strong enough resistance to ensure a tight wrap of the winchrope on the drum. Using the winchrope retrainer will ensure that the rope will not pull through to the terminal end even if the winchrope is not initially spooled on the drum as snug as it should be. Click HERE for installation instructions!

A Note on the Rope Thimble:
We use a heavy-duty galvanized steel thimble at the looped hook-end of the rope. You will notice that the thimble is wider than the diameter of rope to help protect from abrasion. If using a factory winch hook that came with the original cable ensure that the clevis opening on the hook is wide enough to allow the thimble plenty of wiggle room. Do not under any circumstances alter the width of the thimble by hammering or compressing in a vice to make it fit. This reduces the structural integrity of the thimble and will cause it to deform.

If securing the rope onto a recovery point when spooled, make sure to use a D-shackle for the hook. Do not store the hook directly into the recovery point. This will cause a lateral pull on the thimble when spooling-in which could lead to deforming.

A Note on the Abrasion Guard:
The 10 ft. abrasion guard (5 ft. on ATV rope) stays permanently on the winch rope. When spooling in the rope, the guard will slide to the hook end, and the handler who is usually facing the winch, gets a 10 ft. warning that the hook is coming. Lift the beginning of the guard over the lip of the aluminum Hawse fairlead, and the guard and rope will spool onto the winch drum without bunching up.

During winching, slide the guard along the rope to the rock or outcrop that might abrade the rope. The guard will rest on the object permitting the rope to slide through the guard without any abrasion.
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. General Note:
Winch rope, just like winch cable can lose strength if overstrained. Overstraining is the result of exceeding the recommended working load limit, whether instantaneously (by transient peak loads during dynamic loading events) or for an extended time period (by overworking the winch and/or rope). The working load limit of the line should be chosen based on experience in the end use, along with consultation with OKoffroad, your winch and rope supplier. Make sure your rope diameter and winch capacity are suitable for your vehicle size.

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