Engine Bleed Air Check Valve (902 Config); Engine Bleed Air Check Valve Removal; Engine Bleed Air Check Valve Installation; Flow Control Shutoff Valve Assembly (902 Config) - MD Helicopters MD Explorer Servicing And Maintenance

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.
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
(3). Apply anti-seize compound (C220) to
(4). Close L260 or R260 (Ref. Section
14. Flow Control Shutoff Valve Assembly (902
CONFIG)
A. Flow Control Shutoff Valve Assembly
(Ref. Figure 405)
(1). Open R260 (Ref. Section 06-00-00).
(2). Disconnect electrical connector P520
(3). Disconnect coupling nuts on tubes (14
B. Flow Control Shutoff Valve Assembly
(Ref. Figure 405)
(1). Put shutoff valve in its installed
(2). Connect coupling nuts to shutoff valve.
(3). Connect electrical connector P520.
(4). Close R260 (Ref. Section 06-00-00).
21-40-00
check valve and connect hose to check
valve. Torque coupling nut 500-600
in-lb (56.5-67.8 Nwm).
06-00-00).
Removal
(12).
and 15). Remove shutoff valve (13).
Installation
position.
Torque coupling nuts 500-600 in-lb
(56.5-67.8 Nwm).
CSP−900RMM−2
Page 415
Revision 28