TM
5-3431-203-15
Section VIII. TIMER RELAY, SWITCHING PANEL, FILTER
REACTOR, REACTOR COIL AND TESLA COIL
b. Installation.
4-27. Timer Relay
(1) Refer to figure 4-12 and install the
a. Removal.
switching panel.
(1) Remove the high frequency panel
(2) Install the contactor screws (para 3-
assembly (para 3-27).
41).
(2) Refer to figure 4-11 and remove the
(3) Install the welding machine top and
timer relay.
housing (para 3-26).
b. Installation.
(1) Refer to figure 4-11 and install the
4-29. Filter Reactor
timer relay.
a. Removal.
(2) Install the high frequency panel as-
(1) R e m o v e the welding machine top
sembly (para 3-27).
and housing (para 3-26).
(2) Remove the rectifier assembly (para
4-28. Switching Panel
4-23) .
a. Removal.
(3) Disconnect the filter reactor lead
(1) R e m o v e the welding machine top
from the polarity switch (para 4-
and housing (para 3-26).
19).
(2) Remove the contactor screws (para 3-
(4) Refer to figuue 4-13 and remove the
41).
filter reacher.
(3) Refer to figure 4-12 and remove the
b. Testing. Connect an ohmmeter to the
switching panel.
filter reactor leads and check from an open cir-
cuit.
c. Installation.
(1) Refer to figure 4-13 and install the
filter reactor.
(2) Connect the filter reactor lead to the
polarity switch (para 4-19).
(3) Install the rectifier assembly (para
4-23).
(4) Install the welding machine top and
housing (para 3-26).
4-30. Reactor Coil
a. Removal.
(1) Remove the welding machine top and
housing (para 3-26).
(2) Remove the rectifier assembly (para
4-23) .
(3) Disconnect the coil lead from the
polarity switch (para 4-19).
(4) Refer to figure 4-13 and remove the
reactor coil.
b. Testing. Connect a multiimeter to the
tail leads and set the meter on ohms. If the
indicator gives no reading, the coil has an op-
en circuit and must be replaced.