Winch user manual
How to use a winch safely: installation, step-by-step winching, pulling with a snatch block, the difference between steel cable and synthetic rope, maintenance and common faults. This guide applies to all electric and hydraulic winches bought from JR Motors – for 4x4s, ATVs and work vehicles.
Winch parts
The kit usually also includes a hook, a wired remote and/or a wireless remote, and mounting bolts. The power cables and main isolator switch are at the electric winch.
Installation and first use
- The winch must be mounted on a winch mounting plate or a winch-ready bumper, not on thin sheet metal or a number plate bracket. All four mounting feet must be bolted down. The recommended minimum thickness of a winch mounting plate is 5 mm.
- Use the bolts supplied with the winch or at least grade 8.8 bolts.
- Electric winch: power cable directly to the battery terminals, with a main isolator switch or fuse in the positive cable, and the cable protected from sharp edges. The negative cable goes directly to the battery negative terminal, not to any random chassis point.
- Hydraulic winch: connect according to the manufacturer's diagram, check the hose connections and the oil level. Bleed air out of the system before the first pull under load.
- Spool a new cable or rope onto the drum under load (about 5% of the winch's rated line pull). Cable that is not tightly spooled will be pulled down into the lower layers under the first load and get damaged. The same applies after every use: always spool the cable or rope back onto the drum under load.
- Test the remote control in both directions and the free spool lever before you actually need the winch.
General safety rules
- Know your winch before you need it.
- Wear thick leather gloves. Broken strands of steel cable will cut you.
- Never exceed the maximum rated line pull of the winch or cable.
- A winch is not for towing. Shock loads destroy the cable and the gearbox.
- A winch is not a hoist. Never lift or suspend loads, except with a purpose-built hoist.
- Never step over a cable under tension.
- Never use the winch under the influence of alcohol or medication.
- Never wrap the cable around yourself.
- Never keep your hand on the cable near the roller fairlead. Spool in the last few metres using the hook strap.
- Tell everyone around you what you are doing. One person is in charge; everyone else stays at a safe distance.
Winching step by step
- Assess the situation. Is the vehicle beached on its belly, can the wheels help, do you need a snatch block? The safest pull is straight, angled slightly upwards and as short as possible.
- Choose an anchor. A healthy, sufficiently thick tree (not a dead one), a rock, or another vehicle with the handbrake on and in gear. Around a tree, always use a wide tree trunk protector, as low on the trunk as possible.
- Pay out the cable. Put the free spool lever in the „OUT“ / FREEposition and pull the cable out by hand. At least 5 wraps plus one extra turnmust remain on the drum, because the cable's anchor point on the drum does not hold the load. The extra turn secures the cable or rope to the drum.
- Attach. Attach the cable to the strap loops with a shackle or the hook, with the hook latch closed. Screw the shackle pin all the way in, then back it off a quarter turn.
- Lock the free spool. Put the lever in the „IN“ / ENGAGED position and make sure it has moved all the way. A half-engaged gear is the fastest way to destroy the gearbox.
- Take up the slack slowly. Check the anchor and attachments.
- Line damper on the cable. Place a line damper, a blanket or a jacket over the middle of the cable to absorb kinetic energy. If the cable breaks, it drives the cable down to the ground. Raising the bonnet protects the cab and you inside it.
- Winch. Electric winch: keep the vehicle engine running. Help gently with the vehicle, wheels straight. Work in short cycles (see section 7).
- Spool in. Lay the cable wrap by wrap side by side, under light tension. Cable that is crossed or piled up on one side damages the drum flanges and crushes the lower layers. If necessary, spool it out and back in again.
- Afterwards: check the cable, secure the hook and put light tension on it, disconnect the remote from the winch, switch the wireless remote OFF.
Snatch block and multiple-line pull
The winch's pulling capacity is highest on the first layer of cable. Each layer on the drum reduces the pull by about 10–20%. When almost the full length of cable is on the drum, the pull is several times lower than the rating plate says. A snatch block solves both problems.
- The snatch block must be rated for at least the cable's breaking load .
- Attach the snatch block with a wide strap and a shackle, not with a hook onto the cable.
- With a snatch block you can also pull at an angle: the winch stays straight and the snatch block at the anchor changes the direction.
- Without a snatch block, keep the cable angle to the winch as straight as possible. A sharp side angle piles the cable up on one side.
Steel cable and synthetic rope
| Steel cable | Synthetic rope | |
|---|---|---|
| Weight | heavy, 30 m ≈ 10–20 kg | up to 80% lighter, floats on water |
| If it snaps | stores a lot of energy, whips back | much less recoil, but still use a line damper |
| Fairlead | roller fairlead (4 rollers) | aluminium hawse fairlead. An old, scored roller fairlead will damage the rope. |
| Wear | broken strands, kinking/jamming, rust | abrasion, UV, sand, heat from the drum brake; needs a protective sleeve |
| Maintenance | dry it, oil it occasionally | rinse with water after mud and sand, protect from UV and heat |
| When to replace | broken strands, crushing, sharp kinks | melted or hardened spots, 25%+ of the fibres worn through |
When switching from steel to synthetic, replace the fairlead too. Never spool steel and synthetic onto the same drum.
Electric and hydraulic winches
Electric winch (12 V / 24 V)
- Winch with the engine running. At full load the winch draws 300–450 A; the battery alone will be flat within a few minutes.
- Work in short cycles: under heavy load no longer than 10–15 seconds at a time, then let the motor cool. The exact duty cycle is in the manufacturer's manual.
- If the motor housing feels hot to the touch, take a break.
- Switch the wireless remote off when not in use. Disconnect the wired remote after winching.
- Check the terminals and cable insulation. Loose terminal = hot terminal.
Hydraulic winch
- Runs off the power steering or a separate pump, the engine must be running. There is practically no duty cycle limit.
- The steering may be heavy while winching. Do not turn the steering wheelwhile the winch is pulling.
- Check the oil level and hoses before and after long winching sessions.
- Speed depends on engine revs. Do not hold the engine in the red zone.
- Leaking connection = repair immediately; running out of oil means pump damage.
Maintenance
A winch left unused for a year will seize exactly when you need it. In Estonian conditions (salt, moisture, cold), spool the cable out and back in at least once a month. This keeps the mechanism and contactor working and stops them seizing.
| When | What to do |
|---|---|
| After every use | Spool the cable cleanly and evenly onto the drum. Wash off mud and sand. Check the hook, latch and cable end. |
| Once a month | Spool a few metres of cable out and back in. Test the remote control in both directions and the free spool lever. |
| Once a year | Tighten the mounting bolts. Cables and terminals (remove oxidation, apply contact grease). Condition of the control box/contactor. On hydraulic winches, hoses and oil. Pay out the entire cable and inspect it. |
| As needed | Replace a worn cable, roller fairlead or rope. The gearbox is greased at the factory, but we still recommend replacing the gearbox grease every year. |
If something doesn't work
| Symptom | Likely cause | What to do |
|---|---|---|
| Winch does not move at all | main isolator switch off, remote disconnected, faulty winch motor | Check the switch, fuse and remote control socket. Start the engine. |
| Contactor clicks, motor does not turn | weak battery, poor connection, worn or oxidised contactor in the control box, faulty winch motor | Charge the battery, clean and tighten the terminals. Check whether current is reaching the winch from the contactor. If not, replace the contactor. |
| Works in one direction only | control box/contactor fault, remote control fault | Try another remote control. Contact us. |
| Wireless remote does not respond | battery flat, remote not paired | Replace the battery and re-pair the remote according to the manufacturer's manual. |
| Motor runs, drum does not | free spool not fully engaged | Move the lever fully to the „IN“ position and turn the drum slightly by hand until the gear engages. |
| Slips back under load | brake worn, oily or wet | Stop winching; the winch needs servicing. |
| Motor overheats quickly | cycle too long, load too heavy, many layers of cable on the drum | Take breaks, use a snatch block, pay out more cable. |
Warranty
- The winch comes with a manufacturer's warranty. The warranty period depends on the manufacturer and model and is stated on the product page.
- For warranty matters, contact JR Motors. Keep your purchase invoice.
- The warranty covers parts with manufacturing defects.
- The warranty does not cover: an overloaded or burnt-out motor, a snapped cable or rope, damage caused by incorrect installation or incorrect use, damage by force, overloading, or oxidation and seizing caused by lack of maintenance.
Frequently asked questions
How many wraps of cable must stay on the winch drum?
At least 5 wraps plus one extra turn. The cable's anchor point on the drum does not hold the load – the load is held by friction between the wraps. The extra turn secures the cable or rope to the drum.
How long can you winch continuously with an electric winch?
Under heavy load no longer than 10–15 seconds at a time, then let the motor cool. If the motor housing feels hot to the touch, take a break. The exact duty cycle is in the manufacturer's manual.
Should I choose steel cable or synthetic rope?
Synthetic rope is up to 80% lighter and recoils much less if it breaks, but it needs an aluminium hawse fairlead and protection from UV and heat. Steel cable needs a roller fairlead and tolerates rougher handling in mud and sand, but stores a lot of energy if it breaks.
Why does the winch contactor click but the motor doesn't turn?
Usually the cause is a weak battery, a poor connection or a worn and oxidised contactor. Charge the battery, clean and tighten the terminals, and check whether current is reaching the winch from the contactor. If not, the contactor needs replacing.
How thick does a winch mounting plate need to be?
The recommended minimum thickness of a winch mounting plate is 5 mm. The winch must be mounted on a winch mounting plate or a winch-ready bumper, not on thin sheet metal or a number plate bracket, and all four mounting feet must be bolted down.
How does a snatch block increase the winch's pulling capacity?
A double line pull with a snatch block gives roughly twice the pulling capacity at half the speed; a triple line roughly three times. Each snatch block adds about 5–10% friction loss. A snatch block also lets you pull at an angle.
How often should a winch be serviced?
In Estonian conditions, spool the cable out and back in at least once a month so the mechanism and contactor don't seize. Once a year, tighten the mounting bolts, clean the terminals, inspect the entire cable and replace the gearbox grease.
JR Motors OÜ · Tehnopargi tee 5, 61715 Tõrvandi, Tartumaa
Tel 502 8488 · info@jrmotors.ee