High-Pressure Switch; High-Pressure Switch Removal; High-Pressure Switch Installation; Compressor Inlet Hose - MD Helicopters MD Explorer Servicing And Maintenance

CSP−900RMM−2
(6). Close Access Panel R210 (ref. Section
06-00-00).
25. High−Pressure Switch
A. High−Pressure Switch Removal
(Ref. Figure 409)
(1). Open Access Panel R210 (ref. Section
06-00-00).
(2). Evacuate AC system (ref. Section
12-00-00).
(3). Disconnect Electrical Connector P502
(66).
(4). Remove high-pressure switch (67).
B. High−Pressure Switch Installation
(Ref. Figure 409)
(1). Install high-pressure switch (67).
(a). Torque the nut of tee 230 to 260
in-lb (25.99 to 29.38 Nm).
(2). Connect Electrical Connector P502
(66).
The receiver dehydrator must
CAUTION
be replaced each time the com­
pressor is removed, or the AC system is
opened. An early failure of the compressor
can occur.
(3). Remove and replace the receiver
dehydrator (ref. Procedure 22.).
(4). Service AC system (ref. Section
12-00-00).
(5). Close Access Panel R210 (ref. Section
06-00-00).

26. Compressor Inlet Hose

A. Inlet Hose Removal
(Ref. Figure 409)
(1). Open Access Panel R210 (ref. Section
06-00-00).
(2). Evacuate AC system (ref. Section
12-00-00).
(3). Disconnect inlet hose (29 or 32).
Page 432
Revision 34
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
21-50-00
(4). Remove nut (5), screw (3), washers (2),
and loop clamp (4).
(5). Remove screws (57), washers (59), loop
clamps (56 and 58), nuts (60), and inlet
hose (29 or 32).
B. Inlet Hose Installation
(Ref. Figure 409)
(1). Connect inlet hose (29 or 32).
(2). Install washers (2, 59), screws (3, 57),
loop clamps (4, 56, 58), and nuts (5, 60).
(a). Torque nuts.
(3). Torque the captive nuts of inlet hose
460 to 500 in-lb (51.97 to 56.49 Nm).
The receiver dehydrator must
CAUTION
be replaced each time the com­
pressor is removed, or the AC system is
opened. An early failure of the compressor
can occur.
(4). Remove and replace the receiver
dehydrator (ref. Procedure 22.).
(5). Service AC system (ref. Section
12-00-00).
(6). Close Access Panel R210 (ref. Section
06-00-00).

27. Compressor Outlet Hose

A. Outlet Hose Removal
(Ref. Figure 409)
(1). Disconnect outlet hose (31 or 50).
(2). Remove screws (57), washers (59),
clamps (61 and 58), nuts (60), and inlet
hose (29 or 32).
B. Outlet Hose Installation
(Ref. Figure 409)
(1). Connect outlet hose (31 or 50).
(2). Install clamps, screws, washers, and
nuts.
(a). Torque nuts.
(3). Torque the captive nuts of outlet hose
(31 or 50) 230 to 260 in-lb (25.99 to
29.37 Nm).