3-22. BATTERY FIELD AND SHUNT FIELD CONTACTOR
This task covers:
Tool kit SC 4940-97-CL-E12
Dry-cleaning solvent (Item 30, Appendix B)
Variable dc voltage supply 6125-00-B06-6715
High voltage is used in the operation of equipment. Do not be misled by the term LOW VOLTAGE.
Potentials as low as 50 volts may cause death.
Remove rings, bracelets, wristwatches, and neck chains before working around the locomotive. Jewelry
can catch on equipment and cause injury, or may short across an electrical circuit and cause severe burns
or electrical shock.
Battery field and shunt field relays are
removed, disassembled, assembled, and
Check that electrical wires are labeled
with wire numbers or polarity signs.
Disconnect wires from relay assembly.
Remove two mounting screws (1), lockwashers
(2), and relay assembly (3).