REMOVE MAIN FUEL TANK VENT VALVE
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 same to remove vent
valve in No. 1 or No. 2 main fuel tank.
Removal of No. 2 (right) vent valve is
Disconnect hose (1) from vent valve (2). Plug
and remove hose from tank (3).
Disconnect hose (4) from valve (2).
Remove four bolts (5) and washers (6).
Remove valve (2) and gasket (7) from adapter
plate (8) and bracket (9).
Cover access hole (10) in tank (3). Use barrier
material (E80) and tape (E388).
END OF TASK