TM 55-2210-223-34
TO 45A2-2-14-22
3-25. GENERAL-PURPOSE RELAY
This task covers:
a.
Removal
b.
Installation
c.
Test
INITIAL SETUP
Tools
Tool kit SC 4940-97-CL-E12
REMOVAL
WARNING
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.
NOTE
If general purpose relay is suspected of being defective perform step 5.
1.
Set battery switch to OPEN position. Tag and disconnect wires from relay assembly.
2.
Remove
two
screws
(1)
and
relay
assembly (2).
INSTALLATION
3.
Install relay assembly (2) and secure with
two screws (1).
4.
Connect electrical wires and remove tags.
TEST
5.
Energize and deenergize relay and check
that there is no hesitation during pickup or
dropout.
3-84
