Vacuum Cut Valve: Testing and Inspection

Vacuum cut valve bypass valve
Check air passage continuity.




With CONSULT
Perform "VC/V BYPASS/V" in "ACTIVE TEST" mode.

Condition VC/V BYPASS/V Air passage continuity between A and B
ON Yes
OFF No




Without CONSULT

Condition: Air passage continuity between A and B
12V direct current supply between terminals: Yes
No supply: No

If NG or operation takes more than 1 second, replace vacuum cut valve bypass valve.




Vacuum cut valve
Check vacuum cut valve as follows:

1. Plug port C and D with fingers.
2. Apply vacuum to port A and check that there is no suction from port B.
3. Apply vacuum to port B and check that there is suction from port A.
4. Blow air in port B and check that there is a resistance to flow out of port A.
5. Open port C and D.
6. Blow air in port A check that air flows freely out of port C.
7. Blow air in port B check that air flows freely out of port D.