4-24. CAB HEATER ASSEMBLY
This task covers:
Tool kit SC4940-97-CL-E16
Drycleaning solvent (Item 23, Appendix E)
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.
High voltage is used in the operation of equip-
ment. Do not be misled by the term LOW
VOLTAGE. Potentials as low as 50 volts may
Open electrical equipment cabinet door and set battery switch to CLOSE. Set heater
switch to ON.
.Remove cover and test heater fan motor, resistors, and switch for proper operation prior to
Set battery switch to OPEN.
Brushes can be removed and replaced without removing or
disassembling the heater. For brush replacement only, do steps 3, 4,
11, 24, and 30.
Remove two screws (1), lockwashers (2), and cover (3).