How do I upkeep the winches with chains and chain links?

The chain has to be lubricated every 200 operating hours with any special chain spray lubricant resistant to high temperature as the grease can come into the friction linings of the clutch. 

Firstly, remove the PTO protection (make sure to place it back again when you finish lubricating the chain). Clean the chain before lubricating it. Avoid applying lubricant to the places where it could spill to the clutch from. 

If the lubricant gets spilled into the friction linings of the clutch, the pulling force is reduced and the clutch plates have to be replaced. 

The pulling force of the winch is too weak (not pulling properly).

Check the oil quantity and look for leakage in the hydraulic system. If you notice an oil leak, it is possible that the friction lining is stained and needs to be replaced. It can also be greasy due to the improper greasing of the chain. 

If the friction lining is clear and dry, it has to be grinded and all other iron sliding surfaces have to be cleaned of the rust. 

The slipping of the clutch also lowers the system pressure. There are several possible reasons for a too low pressure; deficient pump, air intake in the sucking part of the system, discharge valve etc. We suggest you to locate your local service representative in our wide distribution network. 

More about the machine errors can be found in the user manual. 

The brake doesn’t hold or it loosens.

If the brake is loose, the operator should reset it. Correcting the length of the braking belt can increase the braking force, but it must not be done beyond the normal pulling of the rope out of the drum. Water and dust are not as harmful as the mud. The latter is greasy and thus can cause the brake to let the drum slide instead of keeping it firm. When the mud dries, the brake should grip again. The mud can be washed from the inside of the winch. Point a gentle stream of clean water through the wire replacement opening and the dirt should be washed out through the dirt drain at the bottom of the winch. 

It is also possible, that the braking belt is greasy, deformed or has another mechanical malfunction on the braking system or hydraulic. 

More about the machine errors can be found in the user manual.

The wire rope cannot be pulled out of the drum, the unwinding device is not working or is working poorly.

The unwinding system is working properly when the wire rope can be pulled out of the drum manually if the brake is open. If the system is not working in such a way, then it is possible that the wire is wound crosswise, damaged (knots) or the pressure of the upper rollers is too strong. apart from that, the brake or prebrake can be fastened too strongly. 

More about the machine errors can be found in the user manual. 

What is the hand-fastened screw with a safety nut used for?

This is the prebrake which prevents unwanted rotations of the drum. In case the drum rotates after we stop unwinding, the wire rope can loosen or even cause a jam in the hydraulic system. Due to the load weight the wire rope gets stuck between the turns and get deformed. That can cause compression or breaking damages. The prebrake is set by the winch user as needed. The proper set-up allows an easy manual pull of the wire rope out of the drum and makes the drum stop when we stop unwinding. When pulling a heavier burden, the prebrake has to be tightened. 

More about the machine errors can be found in the user manual. 

The winch is inactive!

Check the tractor plug in. The minimum voltage is 10V (unloaded 12.2V) and also, check the polarity. When impossible to determine whether the plug is working, try to plug the winch into another tractor. 

The electronic control turns on the green LED light. If the light isn’t on, the fuse should be inspected and if necessary, also replaced by the back-up fuse in the electronics box. 

Check the cables of the limit switch and connectors on the valves. 

If the pressure is too low, check the pump chain, oil quantity and pump operation. 

More about the machine errors can be found in the user manual. 

How do I check the oil quantity in the hydraulic system?

The oil quantity is checked the same way for all winches: with the dipstick on the reservoir plug or through the oil control window. The oil has to be checked when the pressure is 0bar. This is done by turning off the PTO shaft and pressing the functions on cable console or remote control. With every press, the pressure should drop. 

More about the machine errors can be found in the user manual.