Pressure Roll; Slack Rope Switch; Emergency Hand Operation; Drum Release - haacon ESF Betriebsanleitung

8.2 Pressure Roll

Before commissioning, adjust the position of the pressure roll
to the requirements (number of rope layers).(--> oblong holes)

8.3 Slack Rope Switch

Interrupts the drive, as soon as the rope loses its tension,
e.g. if the load jams when "lowering" or reaches the ground.
Prevents the rope coils jumping off the drum. Prevents during
renewed lifting cross layering of the rope. (rope damage).
not available for divided drums!



With known rope outlet, the slack rope switch has been adju-
sted in the factory.
z Adjust the switch before commissioning according to the
local conditions and check its function. For this purpose,
loosen screws  and rotate the arm appropriately. Then
tighten screws  again.
The slack rope switch has already been connected according
to the circuit diagram, if the control unit has been supplied by
the factory. Otherwise it is the responsibility of the operator to
correctly connect the switching element to the control unit.
The slack rope switch is a safety component.
– Examine regularly, however at least once annually, as well
as before commissioning.
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Applies rope coils to the drum.
Designed for up to three rope
layers.
The slack rope switch is made of

a spring mounted roll arm
the rope loses its tension, then

the limit switch is triggered by a
cam segment. The motor stops.
haacon hebetechnik gmbh – Telefon +49 (0) 9375 - 84-0 – Fax +49 (0) 9375 - 84-66

8.4 Emergency Hand Operation

The motor brake starts automatically, if the power supply is
interrupted. The load movement is stopped immediately.
Lower load:
z Screw in brake lever, vent brake.
Lift load:
z Attach crank to motor, turn anti-clockwise , vent brake.
Emergency hand operation only when disconnected
from power supply.
Exceptional situation! Therefore special attention is
necessary. -->Safety instructions in Chapter 2.
Only assign instructed personnel.
Do not stay under suspended loads or in the danger
area. Secure danger zone.
LOWERING - NOTE!
The load starts moving independently after venting
the brake. The load is braked again by releasing the
brake lever. Do not exceed suitable lowering speed.
Only lower load step by step!
If necessary, use the provided crank for lowering.
. If
LIFTING – NOTE!
Danger of injury by the attached crank, if this is not
sufficiently secured before venting the brake.
First hold crank, then vent brake!
First release the brake lever, then the crank
carefully!
Inserting the crank interrupts the power supply of the motor.
The appropriate switch has already been connected accor-
ding to the circuit diagram, if a factory control unit is installed.
Otherwise it is the responsibility of the operator to correctly
connect the switching element to the control unit.
The switch is a safety component.
– Examine regularly, however at least once annually, as well
as before commissioning.
The operator must ensure, that the brake is not inad-
vertently vented during normal operation.
e.g. the lever can be unscrewed with 400 V drive units
and screwed in into the crank mounting.

8.5 Drum Release

Drum release only without load!
Only for boat, vehicle salvage, and towing winches;
not permissible for lifting winches!
m
The coupling is positive locking against independent release.
z If necessary, turn the drum manually and release coupling.
The rope is not braked when taking off manually. Slack rope
can develop, causing the rope coil to jump of the drum. A pres-
sure roll (Chapter 8.2) can prevent this.
The coupling is equipped with a switch, which interrupts the
power supply of the motor. This switch has already been con-
nected according to the circuit diagram, if a factory control unit
is installed. Otherwise it is the responsibility of the operator to
correctly connect the switching element to the control unit.
The switch is a safety component.
– Check regularly, howeverat least once annually.
The drum can be separated from
drive unit and brake to remove the
unloaded rope.
z Move coupling lever (m) toward
the drum.
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