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TM 9-4110-257-14
4-26. HOURMETER M2 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
1, Appendix G
battery1, Appendix G
disconnected (para 4- Self
Locking Nuts (2
35).
8, Appendix G
Control panel cover door raised and latched
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 4-20. Hourmeter
(2) Tag and disconnect wire leads (4).
(3) Using multimeter set to measure continuity, check hourmeter (5) continuity between terminals. Continuity
should be indicated. If no continuity was indicated, replace hourmeter.
4-66
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