Technical data

13773-001
28-20
Page 930 Nov 2000
D. Cabin Fuel System Fuel Enclosure (Firewall)
(1) Removal - Cabin Fuel System Fuel Enclosure
WARNING:
Disconnect the battery prior to servicing the selector valve.
Note: Steps B through G do not need to be performed if you are just going to inspect the
fuel lines under the firewall fuel enclosure.
(a) Disconnect battery and insulate both cable ends to prevent accidental reconnection.
(Refer to 24-30)
(b) Remove carpet, crew seats, and mounting hardware. (Refer to 25-10)
(c) Remove mid console trim from each side. (Refer to 25-10)
(d) Remove console support side brackets.
(e) Remove screws and washers securing both fuel selector valve side panels and gaskets.
(f) Remove the screws and washers securing the front fuel selector valve panel.
(g) Using shop towels to soak up any fuel, disconnect fuel supply and return lines from the
forward side of the selector valve.
(h) Slide spring clamp downward on drain tube.
(i) Disconnect drain tube from fitting on enclosure.
(j) Remove screws and washers securing bracket, enclosure, and gasket to the firewall.
(k) Disconnect fuel supply and return lines from fittings inside fuel enclosure.
(l) Slide fuel enclosure off fuel supply and return lines.
(2) Installation - Cabin Fuel System Fuel Enclosure
(a) Acquire necessary tools, equipment, and supplies.
(b) Verify battery is disconnected.
(c) Slide fuel enclosure over fuel supply and return lines.
(d) Connect fuel enclosure supply and return fuel lines.
CAUTION: Gasket must be installed properly (flat) to prevent leakage of any fuel or
vapors. Gasket must have an equal amount of overlap on all sides.
(e) Place bracket, enclosure (fitting pointing down), and gasket (evenly centered) into posi-
tion, secure with screws and washers.
(f) Slide drain tube over fitting on enclosure.
(g) Slide spring clamp upward on drain tube until the clamp is centered over fitting.
Description P/N or Spec. Supplier Purpose
Firewall Sealant MIL-S-38249
Ty p e 1
P/S 700 Fire-
wall Sealant
P/R 812 Fire-
wall Sealant
PRC Aerospace Seal-
ants Glendale, CA
Seal selector valve
enclosure
Grease # 6 Aeroshell Lubricate seals and
threads