6.5.2
Slipping clutch operation
The chain hoist is equipped with a slipping clutch that activates when an overload occurs. The
brake activates then automatically, and the power to the motor is turned off.
After the slipping clutch is activated, only the lowering motion is possible. Therefore, it is not
possible to lift an overload from the ground. If a load is already suspended from the hook, you
can deposit it safely by pressing the lowering button on the controller. When you have
completed the lowering of the load, also the lifting motion is possible again. If the slipping clutch
activates already at the rated capacity of the hoist, the friction force must be measured and
readjusted it if needed. A qualified service technician must do the measurement and possible
readjustment of the friction force.
6.5.3
Hoisting limit switch operation
When the mechanical limit switch is activated, it is only possible to move the hook in the
opposite direction. The limit stops at both ends of the chain limit the lifting height. The brake
activates automatically, and the power to the motor is turned off. Elastic buffers on the stop
limits activate the contact points and stop the hook motion.
6.6
Shutting down the equipment
The following checks must be done after every working shift to ensure that the hoist is in a safe
condition.
1. Ensure that there is no load hanging from the hook.
2. Stop the hook in a position where it does not present a hazard to people or traffic.
Preferably leave the hook at above-head height. However, do not stop the hook at the upper
safety limit.
3. Engage the emergency stop button.
4. Turn off the power to the chain hoist.
5. Check the product for any visible damage.
6. Report all observed defects and abnormalities in the product or in its operation to your
supervisor. Report the defects or abnormalities also to the next operator of the product.
WARNING
MACHINE MALFUNCTION HAZARD
Operating a product that is in a dangerous condition could cause serious injury or
death.
Always remove the product immediately from service, if it is in a dangerous
condition.
6 OPERATION
This document and the information contained herein, is the exclusive property of Verlinde S.A.S and represents a non-
public, confidential and proprietary trade secret that may not be reproduced, disclosed to third parties, altered or
otherwise employed in any manner whatsoever without the express written consent of Verlinde S.A.S. Copyright 2020
© Verlinde S.A.S. All rights reserved.
6/2020
