57
U S E
9
9.1
Preliminar y operations
This chapter describes the operations required for refilling the cylinders.
The following instructions presume that the operator has already become familiar with the precautions
given in Chapter 4 “Precautions for use and maintenance” and that the machine has been started up
according to the instructions given in the previous chapter.
9.1
Preliminary operations ....................................................................................................... 57
9.2
Refilling the cylinders ........................................................................................................ 58
WARNING
Before proceeding to use the machine as described below, read chapter 4, “Precautions for use and
maintenance” very carefully and follow the advice given.
1 Check that the safety valve is operating properly by starting up the compressor with the end taps
turned off so that the pressure in the circuit rises quickly and the valve comes into operation at the
set pressure.
The valve is pre-calibrated in the factory at a pressure of 225 bar or 330 bar.
WARNING
Under no circumstances may the calibration pressure of these valves be increased. Any tampering
with the safety valves may cause serious damage to the machine or to persons and a cancellation of
the guarantee.
2 Check the condition of the cylinders to be filled.
Also refer to the instructions supplied with the cylinders, compiled by the cylinder manufacturers.
DANGER
If the cylinders should show evident signs of internal and/or external corrosion, it is not advisable to
proceed with the filling operation, even if they comply with inspection requirements.
WARNING
Only use inspected cylinders provided with the relative approval.
The cylinder operating and filling pressure values are given on the cylinders themselves.
It is prohibited to exceed this refill pressure value.
Use
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