ROHM RZP / RZP-A 3-jaw centric gripper - Manual (Page 8)

Safety Precautions and Guidelines for Use
3-jaw centric grippers
ID 1104572 Operating Manual RZP; RZP-A
Röhm GmbH, Dillingen Works Röhmstr. 6, 89407 Dillingen/Donau, GERMANY, Tel. (49)9071/508-0
Page 8 of 39
III. Environmental hazards
A very wide variety of different media are currently required for lubrication, cooling, etc. during operation of a
clamping or gripping installation. These are generally connected to the clamping installation by pipes or hoses. The
most frequently used are hydraulic oil, lubricating oil/grease and coolants. Particular attention must be paid to these
media when working with the clamping installation to ensure that they do not get into the ground or water. Caution!
Environmental hazard!
This applies in particular:
During installation/removal as there may still be residues in the pipework, piston chambers or oil drain plugs,
To porous, defective or not correctly installed gaskets,
To lubricants that for design reasons escape or are slung out of the clamping installation during operation.
These escaping substances should therefore be collected and recycled or disposed of in accordance with the
applicable regulations.
IV. Safety engineering demands on power-actuated gripping installations:
1. The gripping installation may only be moved when the clamping pressure in the gripper has been built up
and clamping can be carried out in the admissible working range.
2. Clamping may only be released when the gripping installation has come to a standstill.
3. In the event of a failure of the clamping energy, a signal must be given that immediately stops the machine.
4. In the event of a failure of the clamping energy, the workpiece must remain firmly clamped.
5. In the event of an electric power failure and return, it must not be possible for the momentary switching
position to change.
V. Safety precautions:
1. Do not move parts by hand when the power supply is connected and switched on.
2. Do not reach into the open mechanical elements or between the clamping jaws.
3. Disconnect the energy supplies during installation, retooling, maintenance and adjustment
operations.
4. Carry out maintenance, retooling or attachment outside the danger zone.
5. During installation, connection, adjustment, commissioning and testing, measures must be
taken to ensure that accidental actuation of the unit by the fitter or other persons is not
possible.
6. When using all handling modules, protective guards in accordance with the EC Machinery
Directive must be fitted.
7. Dangers are posed by objects falling or being slung out. Measures must be taken to prevent
such falling or slinging out.
8. The service and maintenance intervals must be observed.
9. Grippers which clamp under spring load or which have a gripping force lock with springs are
under spring tension. The resilient pressing star is also under spring tension. Particular care is
therefore necessary during dismantling.
10. Particularly on grippers with gripping force maintenance, top jaws must be designed such that
in pressure-free state, a gripper reaches one of the end positions so that no residual energy is
released during changing of the top jaws.
In addition, the admissible active clearances from the corresponding tables must be observed.
Furthermore, the safety and accident prevention regulations applicable at the place of
operation must be observed.