3-38. EMERGENCY SHUTDOWN SWITCH
This task covers:
Tool kit SC4940-97-CL-E12
Drycleaning solvent (Item 34, Appendix B)
· 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
equipment. 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 OPEN.
Remove four capscrews (1) and lockwashers (2). Remove front cover (3) and cork gasket (4).
Tag and disconnect wires from switches and pull wires through conduit.
Remove insulation bushing (5) and conduit nut (6).
Remove switch housing (7) and cork gasket (8) with conduit (9) from stair frame.
Remove conduit (9) from switch housing (7).
Remove four countersunk screws (10) and remove switches (11) and (12). Remove and retain washers (shims) (13)
from between switches and switch housing. Keep washers in the order that they were removed.