Systec DB-45 - Checking for Leaks on the No-Return Valve (R6, R12); Checking the Remaining Components of the Compressed Air System

V/D S ERIES
M ECHANICAL ASSEMBLIES
Revision: 2.1 3-73
Test 2: Testing solenoid valve Y11/Y8
Fig. 40: Stopping the air supply behind Y11/Y8
• Shut off the compressed air supply on the pneumatic assembly, as
shown in Fig. 40:.
If pressure does not accumulate at this point, then the pilot valve is
leaking:
• Replace the Y11/Y8 solenoid valve.
If pressure accumulates in all three cases, one of the three valves (Y10a,
Y10b, Y11/Y8) is leaking.
• Change each solenoid valve in succession, and perform the leak test
again after each replacement.
Checking for leaks on the no-return valve (R6, R12)
• Disconnect the compressed air hose from the no-return valve.
• Check whether air escapes from the no-return valve.
If air escapes:
• Replace the no-return valve.
Checking the remaining components of the compressed air system
• Test all other components on the compressed air system for leaks
using leak detection spray.
• Eliminate any leaks that you find.