Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (28)
Page 24 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
may be fabricated by cutting off heads of two AN4
bolts approximately 6 in. (15.24 mm) long. Grind
cutoff ends to bullet shape, removing any burrs.
Install work-aids in two nut-plates of fuel cell port
being attached, and use work-aids to hold
alignment with mating parts while starting
prescribed attaching bolts into remaining nut
plates. Ensure attaching bolts are correct thread
size and length: Bolts too short will not have
enough thread engagement; bolts too long will
bottom out and cause incorrect torque, possible
damage to nut plate, and fuel leakage.
NOTE
Fuel cell 212-360-603-101 (center aft) does not
have lacing rings. Existing vent and interconnect
fittings attachment will support cell into position
inside airframe structure after installation.
28.11.4.1 Remove caps or plugs from lines and
openings.
28.11.4.2 Inspect fuel cell cavity for cleanliness
and smooth condition of all interior surfaces.
Apply talcum powder (C-408) to cavity to prevent
cell adhesion.
28.11.4.3
Collapse center fuel cell, folding and
securing with suitable webbing straps into a
bundle which can pass through rear access door
of cavity. Carefully insert cell into cavity, remove
straps, and arrange in approximate position.
28.11.4.4 Place packings in grooves of two
crossover ports in bottom of center cell, using fuel
soluble adhesive (C-311), or equivalent, to hold
packings in place. Using work-aids as required,
position each port to mounting point in floor of
cavity and attach crossover fittings (27 and 28,
Figure 28-5) with bolts and thin aluminum
washers. Torque bolts 40 to 50 in-lbs. (4.52 to
5.65 Nm).
28.11.4.5
Place packings in grooves of
interconnect fittings (26 and 29), using adhesive
(C-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 cell. Torque bolts 40 to 50 in-lbs. (4.52
to 5.65 Nm).
28.11.4.6
At vent port fitting in top of center cell,
assembly packing (7), plate (6), elbow (5) with
attached tee (12), and bracket (11) with four bolts
and thin aluminum washers. Torque bolts 40 to 50
in-lbs. (4.52 to 5.65 Nm).
NOTE
Fuel tank assemblies 212-360-603-101 (center aft)
does not have lacing rings. Vent and interconnect
fitting attachments will support tank position in
airframe structure after installation.
28.11.4.7 Lace
single length of lacing cord (C-
471) through hangers around upper forward area of
center cell and cavity (Figure 28-6). Temporarily
secure ends of cord, leaving enough slack for
access to top of cell.
28.11.4.8
Align vent bracket (11, Figure 28-5) to
inserts in top of cavity. Install four screws with thin
aluminum washers. Connect vent tubes from two
cross fittings to tee (12).
28.11.4.9
Complete lacing of support cord
around top of center cell, and tie securely.
28.11.4.10
Place packing (19) in groove around
center cell access port. Hold door (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).
28.11.4.11
Connect governor bleed line (22) from
fitting under deck to check valve (21) on door.
Connect electrical wiring to quantity gage
connectors (23) and to terminal block (24) on door.
28.11.4.12 Install access panels and covers.
28.11.4.13 Perform
pressure test of fuel system
(paragraph 28.7).