Disconnect discharge fuel hose (1), at FMCP
quick disconnect coupling (2).
Disconnect other end of hose at quick disconnect
(3) to main tank coupling.
Remove quick disconnect couplings (2 and 3)
from hose to be replaced, and set aside for installation
on new hose.
Disconnect suction hose (4) at quick disconnect
coupling (5) at FMCP.
Disconnect other end of hose at tee fitting (6).
Remove couplings (5) from hose (4).
Visually inspect new hose for kinks and obvious
damage to outer insulation.
Inspect locknuts on new hose for thread damage
and also damage to coupling fitting threads.
Install quick disconnect couplings (2 and 3) to
both ends of hose (1).
Route long hose under tank skid carefully, and
secure quick disconnect (3) to main tank coupling first;
then forward end to FMCP box coupling (2).
Install quick disconnect couplings (5) on suction
Install other end of hose (4) to tee (6).
Secure end with quick disconnect coupling to
FMCP box coupling.
3-20. MAINTENANCE OF ERFS COMPONENTS.
LIQUID LEVEL INDICATOR. REPLACE LIQUID
This task covers:
Tools: 1-5/16 Crow Foot
Adhesive (item 14, Appx D)
Liquid Level Indicator (61, 62,
Fig C-2), Appx C
Flashlight (explosion proof)
Refer to Figure 3-10.
ERFS tank must be empty and separate
from other tanks.
Tank access cover removed.
Tank must be purged. Refer to Chapter
3, paragraph 3-25.
GENERAL SAFETY INSTRUCTIONS
Injury to personnel and equipment
may occur if the purging maintenance
procedure above is not performed.
The fuel vapor and air mixture in the
tank can cause a violent explosion
setoff by sparks from tools being
dropped in tank.
Remove retainer (1) and float (2).
Remove nut (3) and washer (4).
Remove tube (5).