RIGGING TECHNIQUES
SYNTHETIC ROPE CARE
Various winching situations will require application of other winching techniques. These could range from too little distance to achieve maximum pull using straight line rigging, simply increasing pulling power, or maintaining a straight-line pulling situation. You will have to assess what technique is correct for your All winching operations should have a straight line from the winch to the object being pulled. This minimizes the rope collecting on one side of the drum affecting pulling efficiency and damaging rope. A snatch block, secured to a point directly in front of the vehicle, will enable you to change your pulling direction while still allowing the rope to be at 90º to wind properly onto the spooling drum. Increasing pulling power & duration In some cases, you may find yourself needing more pulling power. The use of snatch blocks increases mechanical advantage and that increases your pulling power: situation. Think “safety” at all times. How to change the pulling direction Double line Because pulling power decreases with the number of layers of rope on the winch drum, you can use a snatch block to double line out more rope. This decreases the number of layers of rope on the drum, and increases pulling power. Start by feeding out enough rope to free the winch hook. Attach the hook to your vehicle’s frame and run the rope through a snatch block. Do not attach hook to mounting kit. Disengage the clutch and, using the snatch block, pull out enough wire to reach your anchor point. Secure to the anchor point with a tree trunk protector or choker chain. Attach the clevis/ shackle. Attach the shackle to the two ends of the strap/chain, being careful not to over tighten (tighten and back-off 1/2 turn).
WARNING
ITEMS NEEDED
• Always inspect winch rope, hook, and slings before operating winch. Frayed, kinked or damaged winch rope must be replaced immediately. Damaged components must be replaced before operation. • Always wind the winch rope on bottom (mount side) of drum. • Never operate winch with less than 5 wraps of wire rope or 10 wraps of synthetic rope around the drum. Rope could come loose from the drum. • Never bend rope around unprotected, sharp corners. • Never use rope over a rough surface without abrasion protection.
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NOTE: For 25s models The steps will be the same, except the rope will thread on motor side of the winch.
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ANCHORING WIRE ROPE ON DRUM
≥ 10
≥ 5
R25
4-5Nm (35- 44 in-lbs)
R35 & R45
6-7Nm (53- 62 in-lbs)
17
18
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