GEA VARIVENT 24/7 PMO, Оригинальная инструкция по эксплуатации

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Safety
Instructions for the Safe Operation
16
Maintenance and Repair
Before starting any maintenance and repair work on the electrical devices of the valve,
carry out the following steps in accordance with the "5 safety rules":
• Isolate from the power supply
• Take appropriate measures to prevent switch on
• Test absence of voltage
• Earthing and short-circuiting
• Cover or safeguard any adjacent live parts.
For maintenance and repair, the following principles apply:
• Observe the intervals specified in the maintenance schedule.
• Only allow qualified staff to carry out maintenance or repair work on the valve.
• Before starting any maintenance or repair work, the valve must be switched off and
secured against being switched back on. Work may only be started once any
residual energy has been discharged.
• Block access for unauthorized persons. Put up notice signs which draw attention to
the maintenance or repair work going on.
• Do not climb on the valve. Use suitable access aids and working platforms.
• Wear suitable protective clothing.
• Only use suitable and undamaged tools to carry out maintenance work.
• When replacing parts only use approved, fully functional load lifting devices and
lifting accessories which are suitable for the intended purpose, see “Storage“
(Page 24).
• Before setting the valve back into operation refit all safety devices as originally
provided in the factory. Then check that all safety devices are working correctly.
• Make sure lubricants are used properly.
• Check pipes are firmly secured, also check for leaks and damage.
• Check that all emergency stop devices are working correctly.
• The housing sockets have very sharp edges. When transporting and assembling the
valve be sure to wear suitable protective gloves.
Operating Instructions · VARIVENT
®
Mixproof Valve M-C/2.0
Edition 2018-10-04