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TM 9-4110-257-14
4-32.
CONTROL TRANSFORMER T1 TESTING AND REPLACEMENT.
This task covers:
a.
Testing
b.
Removal
c.
Installation
INITIAL SETUP:
Materials/Parts:
Equipment Conditions:
Lock Washers (2)
Refrigeration unit shut down (para 2-7) and battery
1, Appendix G
disconnected (para 4-35).
Self Locking Nuts (2)
Control panel cover door raised and latched.
8, Appendix G
Marker tags (2)
7, Appendix E
a.
Testing. (See Figure 1-4.)
(1)
Be sure battery has been disconnected and remove two bolts (1) and lock washers (2). Open
control panel (3). Discard lock washers.
Figure 4-26. Control Transformer T1
(2)
Tag and disconnect wire leads (4).
(3)
Using multimeter set to measure continuity, check control transformer (5) continuity between
terminals 1 to 2 and 5 to 8. Continuity should be indicated. If no continuity was indicated, replace
control transformer.
(4)
Check continuity between either terminals 1 to 5, or 1 to 8. No continuity should be indicated. If
continuity was indicated, replace control transformer.
4-81
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