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Mtrac endless winch
4. Operation of the winch
4.1 Safety checks before initial operation
(by a competent person)
Prior to initial operation, a competent person must:
• carry out the checks described in sections 4.2 and 4.3,
• perform a trial run of the system with max. useful load and
• actuate the emergency-stop button
=> The load must stop immediately. Turn the emergency-stop button
clockwise for restarting. Travel on and
• check the emergency-limit switch:
during upward travel, press down the actuating lever by hand:
=> The load must stop immediately.
Document and file the results of the safety checks before initial operation.
4.2 Daily checks by the supervisor
• Check the correct fastening of the Yale endless winch on the suspen-
sion.
• Check functioning of UP and DOWN buttons as well as emergency-
stop button.
• Check functioning of the upper emergency-limit switch: During upward
travel, press down the actuator by hand:
=> The load must stop immediately.
• Make sure that no person stays under the suspended load or may be
able to stay there.
4.3 Weekly checks
Since defective ropes are a hazard to safe operation,
check suspension ropes and safety ropes for damage
at weekly intervals in accordance with section 6.2 A
and replace them, as required.
In order to increase the service life of the wire ropes, make
sure that they are clean and slightly lubricated. Check
supply cables and control cables at regular intervals and
replace them, as required.
4.4 UP / DOWN operation
A) Stop and emergency stop
a) For stopping the load, release the UP or DOWN pushbutton.
If the winch does not stop:
b) Press the emergency-stop button => the endless winch must stop
immediately
If the winch still does not stop:
c) Pull the CEE plug!
Stop working immediately if the load does not stop
as described in a)! Arrange for a qualified electrician
to carry out inspection and repair.
B) UP / DOWN operation
a) For switching the control system on, turn the red emergency-stop
button clockwise until it pops out.
b) Press the UP button for travelling upwards and the DOWN button for
travelling downwards. Release the button to stop the winch.
For lifting the load from the ground, always use the
lowest available lifting speed. The rope must first
be tensioned at this speed; it must not be slack
when the load is lifted from the ground. If the winch
has two speeds, the low speed must only be used
for short distances.
If operation is not possible check whether the inte-
grated phase sequence monitoring feature blocks
control because two phases in the supply line have
been changed over. Turn the phase changer in the
plug through 180°, as required.
c) The motor brake of the winch stops the load safely in every position.
4.5 Manual descent
In the event of a power failure, the brake of the winch motor can be
released by hand.
To do this, pull the lowering lever out of the handle on the rear side of
the winch and insert it through the opening of the cover of the motor
into the bracket of the brake.
Pull the lever upwards to start lowering the winch in a controlled manner.
A built-in centrifugal brake ensures that the lowering speed is limited.
Release the lowering lever to slow down. Always put the lever back into
the handle after use.
Using the manual descent in the case of an
overload is prohibited!
Using the manual descent as a replacement
for electrical lowering is prohibited!
Summary of Contents for Mtrac YMT-M Series
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