PRESSURE TEST VENT SYSTEM
Do not puncture or scratch lining
of fuel tank. If lining is broken, fuel
penetrates and activates self-sealing
layers. Activated layers swell and trap
fuel. Activated green spongy material
also contaminates fuel system. This
makes it necessary to replace fuel
tank and flush fuel system.
Procedure is similar to pressure test
vent system in any tank. Differences
are noted in text.
Hold fitting (1) with wrench and disconnect hose
(2). Install plug in hose.
Remove drain valve (3) with packings (4 and 5).
Install packing (4) on plug (5.1) and install into