Hi-Speed; Line-Out; Freespool; Brake-Off - Allied Systems H4A Operating Manual

HI-SPEED operation is achieved at the expense of winch
pulling force. While pulling at high speed, if the load
increases, the winch will automatically adjust the motor
to maximum displacement to increase pulling force. The
operator will notice the line speed slowing down but the
winch will continue pulling.
LINE-OUT - Pushing the control lever away from the
operator releases the brake and reels wire rope off
the drum. Releasing the lever causes it to return to the
BRAKE-ON position, which stops drum rotation and
applies the holding brake. Moving the control lever a
small amount produces slow drum rotation for inching.
Line speed increases proportionally to maximum speed
as the lever is moved farther. HI-SPEED operation is the
same as LINE-IN.
FREESPOOL - When the operator selects FREESPOOL
mode, hydraulic pressure releases a mechanical clutch
on the intermediate shaft. This allows the drum, the drum
gear and the drum pinion to rotate freely permitting wire
rope to be pulled from the drum. An adjustable, spring-
applied wear pad bearing against the drum fl ange provides
resistance to drum rotation in FREESPOOL.
FREESPOOL is controlled by a console mounted rocker
switch with a yellow LED indicator. To operate the switch,
slide the locking tab, then push the rocker switch. The
winch remains in FREESPOOL mode until the switch is
turned off.
Note: On early production winches, FREESPOOL is
selected by moving the control lever sideways to a
detented position. The winch remains in FREESPOOL
mode until the control lever is returned to the BRAKE-
ON position.
WARNING
FREESPOOL should not be used if there
is a load on the wire rope. An uncontrolled
release of the load will occur. Loss of the
load can result in injury and/or equipment
damage.
BRAKE-OFF - a few early winches incorporate a BRAKE-
OFF feature to allow wire rope to be pulled off of the drum
as the tractor drives away from a towed load. BRAKE-
OFF is achieved by moving the control lever sideways
to a detented position which releases a hydraulic clutch
and allows the drum and gear train to rotate. The winch
remains in BRAKE-OFF mode until the control lever is
returned to the centered position.
Operation
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