Section IX. SPARK GAP ASSEMBLY, VOLTAGE CHANGE BARS,
AND GROUND AND ELECTRODE TERMINAL BOARD
3-43. General
a. Removal.
The primary purpose of the spark gap assembly
(1) Remove the two securing
screws and
is to control the stability of the high frequency
raise the voltage change bar access
door on the
are. The purpose of tile voltage change bars is to
rear of the welding machine.
allow the welding machine to operate from 208,
(2) Refer to figure 3-17 and
remove the
230 or 460 volts by the correct changing of the
voltage change bars.
bars. The ground and electrode cable terminal
b. Installation.
lugs are connected by brass nuts to the studs on
(1) Refer to figure 3-17 and
install the
the ground and electrode terminal board.
voltage change bars.
(2) Close the access door and
replace the
two securing screws.
the spark gap assembly.
a. Removal.
(1) Remove the top and side panels from
stall the spark gap assembly.
the welding machine (para 3-26).
c. Adjustment. Refer to figure 3-16 and ad-
(2) Refer to figure 3-18 and remove the
just the spark gap.
ground or electrode terminal board.
