17
Operation
The device begins to unwind the wire rope automatically, when you release the wire rope
or when the function for wire rope unwinding is set on the brake. The wire rope is being
unreeled until you stop the unreeling function on the winch. After the machine is turned
on, the steering system ensures the engagement of the hydraulic cylinder in the
unwinding position. After three seconds, the oil flow is redirected to the hydraulic motor of
the upper pulley. The non-return valve, which is connected to the brake cylinder, enables
a stable position of this cylinder. When in use, all regulations for safe use of the winch must
be observed. Unwinding speed depends on the oil flow or the PTO shaft speed, which
must not exceed 540 revolutions per minute.
After the function for unreeling the wire rope has been activated, the speed of the wire
rope is a bit higher at the beginning, before it decreases. Considering the system of
operation, this is completely normal.
Only the speed decreases and not the force used to unreel the wire rope of off the drum.
Settings
After the assembly and testing, the machine is set. If the machine does not start
unwinding the rope, when you turn it on, you must adjust the settings.
Observe the following procedure to adjust the settings.
If the wire rope is not wound onto the drum tight enough, unwind the rope. Then wind the
wire rope again and make sure it is installed tight enough (use a load). To ensure an
appropriate functioning of the reeling machine, do not use a damaged wire rope
(creased or torn wire rope).
When you start unreeling the wire rope with the machine, the force of the safety brake
should be set in such a way that the wire rope does not begin unrolling on the drum
(check instruction for use of winch; setting the safety brake). Next the thrust of the smaller
pulley (pos. 3, figure 12a) on the larger pulley must be set. If the rope is slipping on the
larger pulley (2), you must increase the thrust of the smaller pulley using the setting screws
(4). In case the larger pulley (2) is not spinning, you must decrease the thrust of the smaller
pulley (3) using the setting screws (4).
When the machine is unreeling the rope properly, you can slightly increase the force of
the safety brake on the drum. This ensures an even rolling of the wire rope up onto the
drum. If you are using an additional brake, it is important that the larger pulley (2) is
spinning together with the wire rope (it should not be slipping) when you are rolling the
wire rope up onto the drum (there is no load on the wire rope). The setting is carried out
according to the above mentioned procedure.
