Lincoln Electric POWER WAVE 355M - Manual (Page 83)

TROUBLESHOOTING AND REPAIR F-37 F-37
POWER WAVE 355M/405M
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7. Carefully apply the correct input voltage to the
POWER WAVE 355M/405M and check for the
correct secondary voltages per table F.5.
Make sure the reconnect jumper lead and
switch are configured correctly for the input
voltage being applied. Make sure circuit
breaker (CB3) is functioning properly.
NOTE: The secondary voltages will vary if the
input line voltage varies.
8. If the correct secondary voltages are present,
the auxiliary transformer is functioning proper-
ly. If any of the secondary voltages are miss-
ing or low, check to make certain the primary
is configured correctly for the input voltage
applied. See Wiring Diagram.
High voltage is present at primary of
Auxiliary Transformer.
9. If the correct input voltage is applied to the
primary, and the secondary voltage(s) are not
correct, the auxiliary transformer may be
faulty.
10. Remove the input power to the POWER WAVE
355M/405M.
11. Install the case wraparound cover using a
5/16” nut driver.
TABLE F.5
LEAD IDENTIFICATION NORMAL EXPECTED VOLTAGE
COM 2 (31) TO 115V (532) 115 VAC
42 TO COM 1A (quick connects) 42 VAC
AUXILIARY TRANSFORMER TEST (continued)
WARNING