MD Helicopters MD Explorer - Lower Fuel Supply Hoses and Shrouds, Supplemental Fuel System, Removal

CSP−900RMM−2MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 451
Revision 1
28-00-00
(2). Prepare vapor shroud box and vapor
shroud box cover surface for electrical
bonding (Ref. CSP-SPM).
Sealant, Electrically Conductive (C230)
(3). Apply sealant (C230) to faying surfaces
between vapor shroud box cover and
vapor shroud box and install vapor
shroud box cover assembly with bolts
(19) and washers (18). Torque bolts.
(4). Perform fuel cell leak check/pressure
test (Ref. Section 28-00-00).
(5). Perform fuel supply vapor shroud leak
check/pressure test (Ref. Section
28-00-00).
(6). Install baggage compartment floor
panels A235, AR250, AL250 (Ref.
Section 06-00-00).
(7). Close baggage compartment door L262
(Ref. Section 06-00-00).
(8). Fuel helicopter (Ref. Section 12-00-00).
24. Lower Fuel Supply Hoses and Shrouds,
Supplemental Fuel System (Option)
(900 CONFIG)
A. Lower Fuel Supply Hoses and Shrouds,
Supplemental Fuel System, Removal
(Ref. Figure 419)
NOTE:
 The supplemental fuel system installa
tion removes the vapor shroud box instal
lation at the crossfeed valve.
 This task is typical for LH and RH lower
fuel supply hoses and shrouds with sup
plemental fuel system installation.
Aviation Turbine Fuel
(1). Defuel supplemental fuel tank (Ref.
Section 12-00-00).
(2). Open baggage compartment door L262.
(Ref. Section 06-00-00).
(3). Remove baggage compartment floor
panels A235, AR250, AL250 (Ref.
Section 53-20-00).
(4). Remove supplemental fuel tank (Ref.
Section 28-10-00)
(5). Remove forward supplemental fuel
tank foam supports (Ref. Section
28-10-00).
(6). Remove lower fuel supply hose.
(a). Remove vapor shroud box cover
assemblies from LH or RH intercon
nect tee fitting (Ref. Section
28-00-00).
(b). Remove and discard lockwire.
Disconnect LH or RH vapor shroud
hose (21, 22) from LH or RH inter
connect tee fitting vapor shroud box
(3, 4).
(c). Remove sealant from vapor shroud at
keel beam.
 Residual Fluids
 System Contamination
(d). Pull vapor shroud hose back and
disconnect end of LH or RH fuel
supply hose assembly (23, 24) from
LH or RH interconnect tee fitting (9,
10).
(e). Disconnect LH or RH fuel supply
hose assembly (23, 24) from crossfeed
shut-off valve (20).
(f). Remove bolt (25), washers (14) and
nut (15) and remove cushioned
support clamp (16). Remove fuel
supply hose assembly with vapor
shroud hose from aircraft.
(g). Remove and discard tiedown strap
(28) and remove grommet (29).
NOTE: Note location of spacers on hose assem
bly before removal. Replace spacers in same
location upon installation.
(h). Slide LH or RH vapor shroud hose
(21, 22) off of LH or RH hose assem
bly (23, 24) and remove vapor shroud
spacers (17) from hose assembly.
CAUTION