TM 9-4120-378-14
4.30 RECTIFIER. - Continued
Remarks
Action
Location/Item
c. Replace if damaged.
Inspection
Continued
Rectifier
See fig. FO-1.
a. Apply 24-28 Vac to input terminals 1 and 3.
Test
b. Check for 24-28 Vdc across output terminals
(marked pos. and neg.) 2 and 4.
c. Replace if fails test.
Capacitor
a. Check for internal condition by placing the test
Test
leads of an ohmmeter on the terminals of the
capacitor.
b. Ohmmeter needle should move rapidly toward
top of the scale; then, slowly return toward zero if
the capacitor is good.
c. If needle moves to top of scale and remains
there, the capacitor is internally short-circuited; if
the needle does not move, the capacitor contains
an open circuit.
d. Replace capacitors with short/open circuits.
a. Install shrink sleeving on capacitor C6 (3).
Installation
See fig. FO-1. and
b. Solder capacitors (3 and 4) to rectifier (2).
fig. FO-2.
c. Install rectifier (2) using two screws (1).
d. Connect leads and remove tags on wires.
See paragraph 4.25.
e. Install junction box.
See paragraph 4.24.
f. Install control module.
See paragraph 4.18.
g. Install evaporator inlet louver.
See paragraph 4.17.
h. Install front top cover.
i.
Reconnect power.
