13
6.6.1 Clutch mechanism
Make sure to switch the tractor drive off before attempting any intervention on the winch!
Proper clutch settings will ensure optimum pull force. The clutch is set by the manufacturer during
fi nal testing of the product before shipment. However possible wear of the lining may require some
extent of adjustment as the time passes. If the winch fails to reach the rated pull force, then it means
that new clutch adjustment is required.
To perform clutch adjustment:
• Loosen the small nut (Pos. 1),
• Slightly tighten the nut (Pos. 2),
• As the system is switched on, the motor and the driveline start turning,
• If the wire rope winds up without you having pressed the black push-button (1), then you probably
tightened the nut (Pos. 7) too much and no more gap is available between the clutch and the drum.
In this case release the nut and keep doing so till the rope no longer moves unless the black push-
button was operated.
6.6.2 Prebrake regulation
To facilitate winding of the wire rope, perform prebrake regulation with the screw (10) and the re-
spective wingnut (11) (Fig. 8). A certain extent of prebraking is also performed by the roller fairlead
(Pos. 12, Fig. 8). Exact prebrake regulation will also prevent the rope from unwinding excessively fast
or accidentally slipping off the drum. Extreme fast unwinding and abrupt brake disengagement may
cause severe damages to the wire rope.
Exact prebrake regulation occurs when the rope can be effortless spooled off the drum.
The prebrake arrangement must be disengaged for uphill winching operations in order to ensure ea-
sier pulling of the rope.
6.6.3 Safety brake
As pulling out is over and the brake is ready for use, the safety brake will automatically take up the
load (the drum must not unwind and the rope must be held straight and well stretched). The brake is
set by the manufacturer during fi nal testing of the product before shipment. However, possible wear of
the lining may require some extent of adjustment as the time passes. If the safety brake fails to hold
the load uniformly , then it means that new adjustment is required.
To adjust the safety brake:
• Tighten the nut (Pos. 3, Fig. 8 ) used to tension the spring
• Adjust the nut (Pos. 3 and 4), so that the distance measured between the two nuts (Pos. 1 and 3)
on the threaded spindle is
7 mm
• Finally tighten the nut Pos. 4 to assure perfect adjustment
3 Brakes permanently released
2
Brakes shortly released
1 Skidding
Fig. 7
6.6 Settings
