Safety Instructions For Operation; Safety Instructions For Maintenance; Permissible Friction Work; Special Risks When Using The Brake - KEB COMBISTOP 38 Instruction Manual

Introduction
1.2.2

Safety Instructions for Operation

Protective measures to be taken by the user:
– Protection against the ingress of foreign particles into the air gap. These particles
may impede the movement of the armature.
– Protection against dangerous temperatures at the magnet of the brake.
High temperatures may cause the torque to decrease.
– Protection against accidental contact with rotating or moving parts, i. e., protection
against being crushed or caught.
– Never use the brake in potentially explosive or aggressive atmospheres!
– Protection against electric shock by installing a protective earth conductor between
the magnet and the fixed installation incl. standardised inspection of the protective
earth conductor connection to all exposed metal parts.
– Measures against freezing and/or formation of ice on the friction surfaces and the
resulting loss of torque.
– The movement of the armature must not be impeded by the ingress of foreign
particles into the air gap. If necessary, dust protection rings (accessories) are to be
used or other protective measures are to be taken.
– Air humidity, aggressive vapours/liquids or the like may lead to corrosion and cause
the lining to stick. In this case, the user needs to provide appropriate measures!
1.2.3

Safety Instructions for Maintenance

Protective measures to be taken by the user:
– Secure the brake against being switched on accidentally during maintenance work.
– When working on the brake, disconnect the brake from load to avoid uncontrolled
movements!
– Protection against the ingress of foreign particles into the air gap. These particles
may impede the movement of the armature.
– When carrying out maintenance and repair work, the brake must not be energised!
– The lining must not come into contact with cleaning agents or solvents.
1.2.4

Permissible Friction Work

When operating the brakes, adhere to the friction work values specified in the KEB
catalogue "Electromagnetic Technology" taking the frequency of operation and the
speed into account. Exceeding these specifications may result in thermal overload of
the lining and a strong decrease in braking torque.
1.2.5

Special Risks when Using the Brake

The brake has been designed and built in accordance with the state-of-the-art
technology and recognised safety regulations. Nevertheless, the following residual
risks exist when using the brake:
01.09.2011 Rev. 01 COMBISTOP Type 38 Page 4