MD Helicopters MD Explorer - Page 780

CSP−900RMM−2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 434
Original
28-00-00
(5). Install bolts (9) and washers (10)
attaching frangible valve to fuel cell.
Torque bolts.
(6). Attach fuel hose assembly (12) ratchet
end connector to frangible valve (3).
Tighten ratchet end connector hand
tight. Ratchets on hose and valve must
be fully engaged.
(7). Install vapor shroud (1) and spacer (11)
over frangible valve hose assembly.
NOTE:
 As an aid to installation, fabricate align
ment bolts (bullet bolts) by cutting heads
off two 1/4 X 28 bolts 2 1/2 inches long and
rounding off cut portion of bolt to form the
shape of a bullet.
 Install threaded portion of bullet bolt into
fuel cell exterior fitting top and bottom
hole. With fitting gasket (14) in place,
align bullet bolts in keel beam. Start bolts
(7) in threads and remove bullet bolts.
(8). Install bolts (7) and washers (8)
attaching vapor shroud to keel beam
and fuel cell. Torque bolts.
Sealing Compound (C205)
(9). Apply sealing compound (C205) to
faying surfaces of vapor shroud and
keel beam and heads of bolts (Ref.
CSP-SPM).
(10). Connect frangible valve (3) hose
assembly to fuel interconnect tee fitting
(4). Torque hose nut.
Grease (C109)
(11). Lightly lubricate shroud box tube end
with grease (C109) and connect vapor
shroud hoses (1) to vapor shroud box (2)
and secure with two to three turns of
lockwire (C702).
(12). Install drain tubing connector (5) and
rubber tubing (C606) (6) on vapor
shroud (1). Secure drain tubing with
lockwire (C702).
(13). Install fuel cell access cover (Ref.
Section 28-00-00).
(14). Install cabin floor panels AL165,
AR165, A170, A217, AL230, AR230,
A235, AL250 and AR250 as required
(Ref. Section 53-20-00).
(15). Perform fuel cell leak check/pressure
test (Ref. Section 28-00-00).
(16). Perform fuel supply vapor shroud leak
check/pressure test (Ref. Section
28-00-00).
(17). Install carpet, if applicable (Ref. Section
25-20-00).
(18). Install cabin seats, if applicable (Ref.
Section 25-20-00).
(19). Fuel helicopter (Ref. Section 12-00-00).