MD Helicopters MD Explorer - Single Port Fuel Vent Float;Rollover Valve; Single Port Fuel Vent Float;Rollover Valve Installation; Single Port Fuel Vent Float;Rollover Valve Removal

CSP−900RMM−2MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 423
Original
28-00-00
10. Single Port Fuel Vent Float/Rollover Valve
A. Single Port Fuel Vent Float/Rollover
Valve Removal
(Ref. Figure 409)
NOTE: This task is typical for LH aft and RH
forward Single Port Fuel Vent Float/Rol
lover Valve removal, except where noted.
Aviation Turbine Fuel
(1). Defuel helicopter (Ref. Section
12-00-00).
(2). Remove cabin seats, if applicable (Ref.
Section 25-20-00).
(3). Remove carpet, if applicable (Ref.
Section 25-20-00).
(4). Remove cabin floor panels AR155 and
AL230 (Ref. Section 53-20-00).
(5). Remove and discard lockwire securing
fuel vent hose (7) to single port fuel
vent float/rollover valve (8). Remove
vent hose from float/rollover valve.
(6). Disconnect electrical bonding jumpers.
(a). If removing right forward single port
float/rollover valve, remove bolt (1)
and washer (2) and disconnect
electrical bonding jumpers (3) from
float/rollover valve.
(b). If removing left aft single port
float/rollover valve, remove and
discard lockwire from bolt (1) and
plug (4). Remove bolt (1) and washer
(2) and disconnect electrical bonding
jumpers (3) from float/ rollover valve.
System Contamination
(7). Remove remaining bolts (5) and washer
(6) attaching float/rollover valve (8) to
fuel cell.
(8). Remove float/rollover valve and discard
O-ring (9).
B. Single Port Fuel Vent Float/Rollover
Valve Installation
(Ref. Figure 409)
NOTE: This task is typical for LH aft and RH
forward Single Port Fuel Vent Float/Rol
lover Valve installation, except where noted.
Consumable Materials
(Ref. CSP−SPM)
Item Nomenclature
C109 Grease
C206 Sealing Compound
C702 Lockwire
(1). Prepare single port float/rollover valve
surface for electrical bonding (Ref.
CSP-SPM).
Grease (C109)
(2). Lubricate O-ring (9) with grease
(C109) and install on float/rollover
valve (8).
(3). Position float/rollover valve on fuel cell.
(4). Connect electrical bonding jumpers.
(a). If installing right forward single port
float/rollover valve, connect electrical
bonding jumpers (3) with bolt (1) and
washer (2) and install at inboard
position.
(b). If installing left aft single port
float/rollover valve, connect electrical
bonding jumpers (3) with bolt (1) and
washer (2) and install at inboard
position. Torque bolt and safety to
plug (4) with lockwire (C702).
(5). Install remaining bolts (5) and washer
(6) attaching float/rollover valve to fuel
cell. Torque bolts.
(6). Perform electrical bond testing (Ref.
CSP-SPM).
CAUTION