Low-Pressure Switch; Low-Pressure Switch Removal; Low-Pressure Switch Installation - MD Helicopters MD Explorer Servicing And Maintenance

1. LOOP CLAMP
2. WASHER
3. SCREW
4. LOOP CLAMP
5. NUT
6. TUBE
7. TUBE
8. UNION
9. TUBE
10. TUBE
11. TUBE
12. TUBE
13. UNION
14. ADAPTER
15. FLARE GASKET
16. TUBE
17. UNION
18. TUBE
19. TUBE
20. TUBE
21. TUBE
22. TUBE
23. SCREW
24. WASHER
25. NUT
26. RECEIVER DEHYDRATOR
27. RECEIVER DEHYDRATOR BRACKET EARLY CONFIG
28. HOSE CLAMP
29. COMPRESSOR INLET HOSE EARLY CONFIG
30. DECK TO RECEIVER DEHYDRATOR HOSE EARLY
CONFIG
31. COMPRESSOR OUTLET HOSE EARLY CONFIG
32. COMPRESSOR INLET HOSE CURRENT CONFIG
33. TUBE
34. TUBE
35. TUBE
24. Low−Pressure Switch
A. Low−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 P503
(51).
(4). Remove low-pressure switch (52) and
packing (53).
(a). Discard packing (53).
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Legend (Ref. Figure 409)
36. RECEIVER DEHYDRATOR BRACKET CURRENT
37. SCREW
38. WASHER
39. NUT
40. TUBE
41. SIGHT GLASS
42. TUBE
43. TUBE
44. TUBE
45. TUBE
46. TUBE
47. TEE
48. TUBE
49. TUBE
50. COMPRESSOR OUTLET HOSE CURRENT CONFIG
51. ELECTRICAL CONNECTOR P503
52. LOW−PRESSURE SWITCH
53. PACKING
54. FITTING
55. TEE
56. LOOP CLAMP
57. SCREW
58. LOOP CLAMP
59. WASHER
60. NUT
61. CLAMP
62. NUT
63. WASHER
64. WASHER
65. ELBOW
66. ELECTRICAL CONNECTOR P502
67. HIGH−PRESSURE SWITCH
68. TEE
69. LH CONDENSER
70. RH CONDENSER
B. Low−Pressure Switch Installation
(Ref. Figure 409)
(1). Install low-pressure switch (52) with
(2). Torque low-pressure switch (52) or the
(3). Connect Electrical Connector P503
CAUTION
pressor is removed, or the AC system is
opened. An early failure of the compressor
can occur.
(4). Remove and replace the receiver
(5). Service AC system (ref. Section
21-50-00
CONFIG
new packing (53).
nut of tee (55) 230 to 260 in-lb (25.99
to 29.38 Nm).
(51).
The receiver dehydrator must
be replaced each time the com­
dehydrator (ref. Procedure 22.).
12-00-00).
CSP−900RMM−2
Page 431
Revision 34