KNECHT B 500 - Machine Control System; Safety Measures in Normal Operation; Dangers Due to Electrical Power; Particular Danger Zones

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2. Safety
2.4.5 Machine control system
Do not make any changes to the software program under any circumstances. Parameters that the
operator can set himself are excluded from this prohibition (e.g. setting the number of cycles).
Only trained and instructed personnel is allowed to activate the control unit.
2.4.6 Safety measures in normal operation
Refrain from any method of working which may pose a risk to safety. Only operate the grinding
machine if all the safety devices are installed and fully functional.
Check the grinding machine for external signs of damage and correct operation of the safety
devices at least once every shift.
Report any changes (including operating behavior) immediately to the competent department /
person. Where required, shut down the grinding machine immediately and secure against restarting.
Before switching on the grinding machine, ensure that no one is exposed to any risk from the
start-up of the machine.
If there are any functional faults, stop the machine immediately and secure against restarting.
Have the faults eliminated immediately.
2.4.7 Dangers due to electrical power
The switch cabinet must always remain secured against access. Only authorized personnel must
be allowed to access it.
Work on electrical units or operating materials may only be performed by a qualified electrician in
accordance with electrical rules.
Defects, such as damaged cables, cable connections, etc., must be immediately rectified by an
authorized electrician.
Cables marked in yellow are electrically live even when the main switch
is in off position.
CAUTION
2.4.8 Particular danger zones
When the grinding belt moves to working position, there is a hazard of pinching in the rear area
of the machine. Suitable personal protective equipment must be worn.