TM9-4120-401-14
4-38. RECTIFIER (CR1) AND CAPACITORS (C1 AND C2).
c. Replace
b. Test
This task covers:
a. Inspect
INITIAL SETUP
Equipment Conditions:
Tools
Refrigeration Unit Service Tool Kit
Appendix B, item 1
Soldering Gun Kit
Use disconnect switch (NOT POWER
Appendix B, item 2
CABLE) to disconnect power to unit.
Damage to cable connector pins will
Heat Gun
result if cable is used.
Appendix B, item 4
Disconnect power at power source.
Materials/Parts
Remove motor controller assembly (para 4-31).
Rectifier
Capacitor
Capacitor
Lock Washer
Insulation Sleeving
(Heat-Shrink Tubing)
Appendix E, item 7
Appendix E, item 6
a. Inspect.
Check rectifier (1) and capacitors (2) and (3) for general condition and broken or missing terminals or leads.
Replace if damaged.
b. Test.
(1) Using a tool with an insulated handle, short across capacitor terminals to discharge them.
(2) Tag and unsolder wire leads and capacitors (2) and (3) from rectifier (1) terminals. (See paragraph 4-24.)
(3) Remove screw (4), lock washer (5), flat washer (6), and rectifier (1).
4-92
