Vacuum Reservoir: Testing and Inspection
INSPECT VACUUM TANK
(a) Remove the vacuum tank.
(b) Check that air does not flow from port B to port A.
(c) Check that air flows from port A to port B.
(d) Plug port B with your finger, and apply 39.9 kPa (300 mmHg, 11.8 in.Hg) of vacuum to port A, and check that there is no change is vacuum after one minute.
If the operation is not as specified, replace the vacuum tank.
(e) Reinstall the vacuum tank.