Cap.6 _ Using the compressor
pag.
40
Use and maintenance manual
MCH-36
6.4 - PRELIMINARY TASKS
6.4.1 - SAFETY VALVE CHECKS
Check that safety valves are working properly by starting the compressor with the end taps closed: this will
raise circuit pressure fast and trip the valves when their pressure setting is reached.
The valves are pre-adjusted to 225 bar (3200 PSI) or 330 bar (4700 PSI).
Check that the bottles to be refilled are in good condition: they must have been tested by the relevant
authorities (stamped and/or certified). Run a visual check on the exterior.
Check that hoses and relevant fittings are in good condition.
After being refilled do not empty the bottles completely, not even during winter storage or long periods of
inactivity: this will stop humidity getting in.
Use only tested bottles (as proven by a test stamp and/or certificate).
The working and bottle refill pressures are shown on the bottles themselves.
It is forbidden to refill them at a pressure greater than that indicated.
WARNING:
Tampering with the safety valve to increase the pressure setting is strictly forbidden. Tampering with
the safety valve can seriously damage the compressor, cause serious injury to personnel and renders
the warranty null and void.
IMPORTANT:
Should bottles show evident signs of internal/external corrosion, do not refill them even if
they have been tested.
DANGER:
