USER'S AND
MAINTENANCE
MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision 03
Copyright © 2014, ROTAIR S.P.A. - All rights reserved
.
This manual is intellectual property of ROTAIR S.P.A.
Its full or partial reproduction is forbidden under any form, on any support and by any means, without the
written authorization by ROTAIR S.P.A.
Page
42/59
12 SAFETY DEVICE
12.1 Verification of the safety valve
The safety valve is located on the oil separator tank and starts working to relieve any accidental excessive
pressure. The calibration of this valve is performed and verified in testing at the factory and cannot be
adjusted for any reason. Its efficiency should be checked quarterly by doing the following:
1)
Start the machine as described in Section 10.2 “Starting”
2)
With the air valves closed and the engine at idle speed, using smooth needle-nose pliers, pull out on
the pin as shown in Figure 12.2-1 and release it as soon as pressure exits the valve
Figure 12.2-1
Testing
of the safety valve
WARNING:
The air escaping from the valve during this operation contains small particles of oil.
WARNING:
Pay attention to the danger of high-pressure liquids.
If, following the testing of the valve, the pin does not return to its normal operating
position, thus preventing the valve to vent or seal properly, an immediate replacement of
the valve will be necessary. Contact ROTAIR for replacement parts.
If part replacement is necessary, it is recommended to contact ROTAIR, quoting
the serial number of the machine.
The use of a non-ROTAIR supplied safety valve will release ROTAIR from any
liability.
A
