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TM 9-4110-257-14
4-23. FUSES F1 AND F2 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
battery disconnected (para 4-35).
Marker Tags (4)
Control panel cover door raised and latched.
7, Appendix E
a.
Testing. (See Figure 1-4.)
(1) Be sure power has been disconnected at the source and remove two bolts (1) and lock washers (2). Open
control box cover (3). Discard lock washers.
NOTE
One each 15 amp and 30 amp fuse is used.
(2) Note location and remove two fuses (4) and (5).
Figure 4-17. Fuses
(3) Using multimeter set to measure continuity, check continuity between each fuse (4) and (5) ends. Continuity
should be indicated. If no continuity was indicated, replace fuse (4) and (5).
(4) If fuse block (6) is damaged, replace it.
(5) If no failure was indicated, install fuse (4) and (5), close control panel (3) and install two new lock washers (2)
and bolts (1).
4-59
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