PRESSURE TEST VENT SYSTEM
Check vent system (16) inside tank (7 or
14). Apply soap mixture, as in step 7a, to all
connections. Secure any loose connections.
If connections are still leaking, use conical
seals as required.
Open relief valve (11) to reduce pressure to 0
On main or aft tank (7) only, hold elbow (8) with
wrench and disconnect test hose (12). Remove
plug and connect hose (9) to elbow.
On forward tank (14) only, disconnect test hose
(12) from hose (13).