Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (28)
Page 22 of 48
CHAPTER 28 – FUEL SYSTEM (28-00-00)
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COPYRIGHT

2007 BY DART AEROSPACE LTD.

THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO ANY
OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision: 6
Date: 13.08.26
NOTE
Fuel tank assemblies 212-360-602-101 (left side)
and 212-360-602-102 (right side) do not have
lacing rings. Vent, interconnect, and filler fitting
attachments will support tank position in airframe
structure after installation.
28.10.4.3.3 Lace fuel cell in position using a
single length of lacing cord (C-471). Lace as
shown on Figure 28-6.
28.10.4.3.4 Align bottom ports of cells to
mounting points in floors of cavities, using work-
aids as required. With packings in place, attach
each crossover fitting (30, Figure 28-5) with four
bolts and thin aluminum washers. Torque bolts 40
to 50 in-lbs. (4.52 to 5.65 Nm).
28.10.4.3.5 At top of right aft cell; assemble
packing (7), plate (6), elbow (5), pointing inboard,
and bracket (4), with attachment legs aft, with four
bolts and thin aluminum washers. Torque bolts 40
to 50 in-lbs. (4.52 to 5.65 Nm). Attach each
bracket to aft bulkhead inserts with four screws
and thin aluminum washers.
28.10.4.3.6
Connect vent line (9) between elbow
and aft nipples of cross fittings in top of center cell
cavity, using grommet (10) where vent line passes
through B.L. 14 beam.
28.10.4.3.7 Place packings in grooves of
interconnect fittings (29), using fuel soluble
adhesive (0-311) to keep packings in place.
Ensure packings are also in place on mating
fittings of right and left aft cells. Using work-aids
as required, align each interconnect fitting and
secure with bolts and thin aluminum washers
installed from inside of center cell. Torque bolts
40 to 50 in-lbs. (4.52 to 5.65 Nm).
28.10.4.3.8 Align filler port to mounting point of
outer skin panel. With packing (2) in place,
position cap and adapter (1) with trimmed edge
up. Install bolts with thin aluminum washers,
picking up riveted ground strip on forward upper
bolt. Torque bolts 40 to 50 in-lbs. (4.52 to 5.65
Nm).
28.10.4.3.9
Install deck above fuel cell.
28.10.4.3.10
Pressure test fuel system per
paragraph 28.7.
28.10.4.4
Place packing (19) in groove around
center cell access port. Hold door assembly (20)
near opening, with brackets extending into cell.
Position quantity gage probe (18) in clips on
brackets, securing with tie at upper clip. Connect
probe electrical leads to connectors on inside of
door. Align door and install twenty bolts with thin
aluminum alloy washers. Torque bolts 40 to 50 in-
lbs. (4.52 to 5.65 Nm).
28.11 AFT CENTER CELL
28.11.1 Removal
MATERIALS REQUIRED
NUMBER NOMENCLATURE
C-016 Lubricating Oil
C-428 Caps and/or Plugs
CAUTION
DO NOT HANDLE FUEL CELL WHEN CELL
TEMPERATURE IS BELOW 65°F (18°C).
NOTE
When a cell which has contained fuel is to remain
empty for more than three days, lightly fog inner
surface with lubricating oil (C-016) to prevent
deterioration caused by drying out. Do not leave the
cell collapsed. If cell is not to be replaced in
helicopter immediately, install cell in a stand or a
container such as is normally used for shipping.
Restore cell to normal shape.
28.11.1.1
De-fuel and purge system (Chapter 12).
28.11.1.2 Disconnect and remove all electrical
power from helicopter.
28.11.1.3 Disconnect two governor bleed lines
(22, Figure 28-5) from check valves (21) on door
(20) and from fittings at underside of engine deck.
Cap fittings.