Lincoln Electric 11141 Service Manual page 85

F-39
AUXILIARY TRANSFORMER TEST (continued)
LEAD IDENTIFICATION
COM 2 (31) TO 115V (532)
42 TO COM 1A (quick connects)
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.
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.
TROUBLESHOOTING AND REPAIR
TABLE F.5
Make sure circuit
POWER WAVE
NORMAL EXPECTED VOLTAGE
115 VAC
42 VAC
WARNING
High voltage is present at primary of
Auxiliary Transformer.
9. If the correct input voltage is applied to the pri-
mary, 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.
® 355M/405M
F-39