MD Helicopters MD Explorer - Supplemental Fuel System Gravity Fill Check Valve; Supplemental Fuel System Gravity Fill Check Valve Installation; Supplemental Fuel System Gravity Fill Check Valve Removal

CSP−900RMM−2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 404
Revision 1
28-10-00
(5). Install screw, washers, nut, and
bonding jumpers to filler neck.
(6). Using milli-ohm meter (T1002), test
filler adapter for a class S electrical
bond (Ref. CSP-SPM). Environmental
seal is not required.
(7). Install center baggage floor panel (Ref.
Section 53-20-00).
(8). Perform supplemental fuel tank
leak/pressure test.
(9). Install right side baggage floor panel
(Ref. Section 53-20-00).
(10). Position supplemental fuel tank filler
neck cover and install bolts and
washers. Torque bolts (Ref. CSP-SPM).
Solvent Cleaner (C429)
(11). Clean edge of filler neck cover and
adjacent structure with solvent cleaner
(C429) and allow to air dry for fifteen
(15) minutes.
Sealant, Fuel Resistant (C216)
(12). Apply a bead of sealant (C216) around
entire periphery of filler neck cover.
(13). Service fuel tank as required (Ref.
Section 12-00-00).
3. Supplemental Fuel System Gravity Fill
Check Valve
A. Supplemental Fuel System Gravity Fill
Check Valve Removal
(Ref. Figure 402)
(1). Remove Fuel Tank Filler Neck Adapter
(14).
(2). Pull gravity fill check valve (19) from
fuel tank through keel beam and
remove.
(3). Remove packing (20) and discard.
B. Supplemental Fuel System Gravity Fill
Check Valve Installation
(Ref. Figure 402)
Consumable Materials
(Ref. CSP−SPM)
Item Nomenclature
C113 Fuel, Aviation Turbine
Special Tools
(Ref. CSP−SPM)
Item Nomenclature
T1002 Milli−Ohm Meter
NOTE: Lubricate new packing with aviation
turbine fuel (C113).
(1). Install new packing onto gravity fill
check valve.
(2). Temporarily install filler neck adapter
bolts and bonding jumper hand tight to
hold tank in position during check valve
installation.
(3). Install gravity fill check valve through
keel beam and into fuel tank. Ensure
check valve is fully seated in fuel tank.
(4). Remove filler neck adapter mounting
bolts.
NOTE: Prior to installing floor panel, remove
fuel tank cover and perform bond test in ac
cordance with step (6). Reinstall fuel tank
cover.
(5). Install filler neck adapter.
(6). Using milli-ohm meter (T1002), test
gravity fill check valve for a class S
electrical bond (Ref. CSP-SPM).
Environmental seal is not required.