This task covers:
Tools SC 4940-97-CL-E12
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.
Set battery switch to OPEN position.
Tag and disconnect wires from timer (3).
Remove four screws (1), flat washers (2), and
Connect 75 V dc to + and terminals.
Connect voltmeter to - and + output terminal.
Check time from power on to power on or from
power off to power off. One complete cycle will
be between 2-1/2and 3-1/2-minutes.
Position timer (3) and secure with four screws (1) and lockwashers (2).
Connect wires to timer (3). Remove tags.