TWIN Use and maintenance instruction manual
Chap. 6
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6.8 Six-monthly checks and tests
AUTONOMOUS MAINTENANCE TIMETABLE – SIX-MONTHLY CHECKS
TYPE OF
MAINTENANCE
QUALIFICATION OF
MAINTENANCE
PERSONNEL
PERSONNEL
REQUIRED
MACHINE STATE
Check
Operators
1 (one) MACHINE CUT-OFF
MAINTENANCE EQUIPMENT AND MATERIALS
ACTIVITY
STEP ACTION DESCRIPTION
1
Safety checks
• Before working on any circuit or component, it is OBBLIGATORY to
check for residual voltage or pressure in the systems, making sure to
always work in safe conditions.
• Risk of bumping into the machine structure and parts. Move cautiously
while carrying out maintenance.
•
Risk of slipping, tripping and falling on machining scraps.
Move cautiously while carrying out maintenance.
• Risk of dust and materials being flung or sucked in.
• In addition to commonly used PPE, based on the maintenance being
carried out also use one of the following:
, PVC coveralls;
; , .
2
Check
• Visually inspect that the electrical cables and cable holding chains are
not damaged and replace damaged components as required.
• Check that the electrical connectors as fastened tightly.
• Check electrical, electronic and electro-mechanical components and
the electrical cabinet.
3
Check safety
devices
Check that all mechanical safety devices are in place and working:
• Enclosure
Check that all pneumatic safety devices are working:
• Low pressure device
Check that all electro-mechanical safety devices are working
:
• Emergency pushbuttons
• Touch-sensitive door edges (where present)
• Supplementary door inter-locking device
• 2-hand control of the portable control panel (where present)
This check is to be considered supplementary for all class I and III safety
devices, which are redundant systems.
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