MD Helicopters MD Explorer - Engine Bleed Air Check Valve (902 CONFIG); Engine Bleed Air Check Valve Installation; Engine Bleed Air Check Valve Removal; Flow Control Shutoff Valve Assembly (902 CONFIG)

CSP−900RMM−2MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 415
Revision 28
21-40-00
13. Engine Bleed Air Check Valve (902
CONFIG)
A. Engine Bleed Air Check Valve Removal
(Ref. Figure 405)
NOTE: This task is typical for left or right engi
ne.
(1). Open L260 or R260 (Ref. Section
06-00-00).
(2). Disconnect hose (4) or (5).
(3). Remove check valve (2).
(4). Remove boss seal (3).
B. Engine Bleed Air Check Valve Installation
(Ref. Figure 405)
Consumable Materials
(Ref. CSP−SPM)
Item Nomenclature
C220 Compound, Anti−Seize
NOTE: This task is typical for left or right engi
ne.
(1). Install boss seal.
Compound, Anti-Seize (C220)
(2). Apply anti-seize compound (C220) to
bleed air fitting and install check valve.
Torque check valve.
(3). Apply anti-seize compound (C220) to
check valve and connect hose to check
valve. Torque coupling nut 500-600
in-lb (56.5-67.8 Nwm).
(4). Close L260 or R260 (Ref. Section
06-00-00).
14. Flow Control Shutoff Valve Assembly (902
CONFIG)
A. Flow Control Shutoff Valve Assembly
Removal
(Ref. Figure 405)
(1). Open R260 (Ref. Section 06-00-00).
(2). Disconnect electrical connector P520
(12).
(3). Disconnect coupling nuts on tubes (14
and 15). Remove shutoff valve (13).
B. Flow Control Shutoff Valve Assembly
Installation
(Ref. Figure 405)
(1). Put shutoff valve in its installed
position.
(2). Connect coupling nuts to shutoff valve.
Torque coupling nuts 500-600 in-lb
(56.5-67.8 Nwm).
(3). Connect electrical connector P520.
(4). Close R260 (Ref. Section 06-00-00).