17
Operation
Inching (LINE-IN). This operation is used to slowly move
a load toward the tractor. The control valve will cause the
oil pressure to slowly release the brake and slowly apply
the LINE-IN clutch. As the brake is released, the clutch
takes control and begins to move the load.
Inching (LINE-OUT). This operation will release the brake
before the LINE-OUT clutch is applied. This permits the
weight of the load to unwind wire rope from the winch
drum against the resistance of the brake. The operator
controls the resistance of the brake by the position of
the power control lever. The LINE-OUT clutch is applied
when the operator moves the power control lever more
toward the LINE-OUT position. When the power control
lever is moved so that the LINE-OUT clutch is engaged,
the speed that the drum unwinds is controlled by the rpm
of the tractor PTO.
Do not use this function (BRAKE-OFF) to
lower a load. Uncontrolled load movement
may occur.
Inching is used for fi ne control of the winch speed.
When the power control lever is slowly moved to a
position between BRAKE-ON and LINE-IN or between
BRAKE-ON and LINE-OUT, inching occurs. The normal
adjustment of inching for LINE-IN is different from the
adjustment for LINE-OUT. These adjustments can
be modifi ed by changing the overlap pressures of the
modulator valves. This change is necessary for some
customer operations. The following paragraphs describe
the normal operation for inching.
NOTE: Inching will rapidly add heat and accelerate
clutch & brake wear. Inching for more than a few
seconds should be followed by several minutes of
cooling recovery
To Next Page
Loading...
Need help?
General
