TM 5-4520-256-14
3-26. TRANSFORMER MAINTENANCE.
This task covers:
a. Removal
b. Inspection
c. Cleaningd. Testing e. Installation
INITIAL SETUP:
Tools Required:
Tool Kit, General Mechanics
Multimeter
Materials Required:
Cleaning Solvent (Item 11, Appendix E)
WARNING
Cleaning solvent, Federal specification P-D-680, is toxic and flammable. Use only in a well-
ventilated area. Avoid prolonged breathing of fumes. Keep solvent away from flames. Do not
use in excessive amounts. Avoid skin contact.
Equipment Conditions:
Heater unit shut down and cool.
Power cable disconnected from power source.
Access door removed (para. 3-10a).
a.
Removal.
(1)
Tag and then remove wires from terminal 4 of TB1 (6) and terminal 6 of switch S 1.
(2)
Tag and disconnect secondary leads from transformer connectors (5).
(3)
Remove four screws (4), four lockwashers (8), four flat washers (7), and four nuts (9).
(4)
Lift away transformer (6) with neoprene backing (2) from cabinet (3).
Change 3 3-72
