TM 9-4120-401-14
b. T e s t .
Be careful not to kink capillary line.
(1) Remove two screws (2). Carefully pull pressure switch (1) out of unit to access terminals.
(2) Remove terminal cover. Tag and disconnect wire leads.
1 and 2.
(a) Press and hold reset button. No continuity should be indicated.
(b) Release reset button. Continuity should be indicated.
(4) Replace pressure switch if defective.
(5) Connect wire leads using tags and wiring diagram (figure 4-6) and attach terminal cover. Remove tags.
Be careful not to kink capillary line.
(6) Carefully position pressure switch (1) into unit and aline mounting holes. Secure with two screws (2).