TM 9-4120-407-14
(g) Remove clip (16) and cover (15).
( h ) Using a multimeter set to measure resistance, check for continuity between two terminals (17).
If no continuity is indicated, low pressure switch (13) must be replaced.
b. Removal.
(1) High Pressure Switch.
(a) Remove six screws (1), lock washers (2), and flat washers (3). Discard lock washers.
(b) Carefully pull safety control box (4) out far enough to access screws (5).
(c) Remove four screws (5) and carefully pull panel (6) out to access high pressure switch (7).
(d) Remove two screws (8).
(e) Carefully pull high pressure switch (7) out far enough to gain access to cover (9).
(f) Remove clip (10) and cover (9).
(g) Tag and disconnect wire leads from two terminals (12).
(h) Remove refrigerant desiccant dehydrator. See paragraph 4-20.
( i ) Disconnect coupling nut (18).
(j) Remove grommet (19) and carefully remove high pressure switch (7).
(2) Low Pressure Switch.
(a) Remove six screws (1), lock washers (2), and flat washers (3). Discard lock washers.
(b) Carefully pull safety control box (4) out far enough to access screws (5).
(c) Remove four screws (5) and carefully pull panel (6) out to access low pressure switch (13).
(d) Remove two screws (14).
(e) Carefully pull low pressure switch (13) out far enough to gain access to cover (15).
(f) Remove clip (16) and cover (15).
(g) Tag and disconnect wire leads from two terminals (17).
( h ) Remove refrigerant desiccant dehydrator. See paragraph 4-20.
(i) Disconnect coupling nut (20).
(j) Remove grommet (21) and carefully remove low pressure switch (13).
4-55
