Figure 164. Engine liquid coolant heater wiring diagram.
threaded lever lug. Remove the control
light socket (20) then remove lamp.
switch from the panel (24).
(2) To replace the light socket (20) or the box
receptacle (19) remove both as an
in all positions. Make sure the switch
Disconnect the wires
operates freely. Replace if faulty.
leading to the control switch, circuit
breaker, and ground.
(3) To install the control switch, position on
receptacle, remove the screws (15),
the panel and secure with the mounting
washers (14 and 16), and nuts (13)
(Make certain the switch lever
fastening the receptacle to the angle
correctly indicates "ON-HI, OFF, ON-LO"
bracket (23). Remove the light socket by
operation on the plate). Connect the
removing the lamp button and the
leads as indicated in the wiring diagram
external mounting nut.
indicator light socket and receptacle for
broken leads or worn or damaged threads.
d. Indicator Lamp.
If any parts are faulty, replace the entire
(1) To replace the indicator lamp (21, fig.
163), remove the lamp button from the