Lincoln Electric PRO-CUT 60 SVM104-A Service Manual page 80

F-39
H1
LEAD
H2
LEAD
C
LEADS
NEG
LEAD
REMOVAL/REPLACEMENT
PROCEDURE
1. Disconnect input power to the
machine.
2. Remove the Left Case Side
Assembly.
3. Perform
DISCHARGE PROCEDURE.
4. Remove the Molex Plugs J20,
J21, and J22 from the Power
Board.
PRO-CUT 60
TROUBLESHOOTING & REPAIR
POWER BOARD REMOVAL
H1
H2
C
NEG
#40
#40
LEADS
FIGURE F.14-Power Board Removal/Replacement
the CAPACITOR
MOUNTING
SCREWS
J21
G1
40
B
G2
4J20
J20
2J20 1J20
J22
1J22
3J22
2J22
4J22
5. Remove G1, G2, 40, & B lead
spade lugs from the terminals
on the SCR modules.
Figure F.14.
6. Remove the two C leads, the
NEG lead, and the two # 40
leads by
terminal screws with a Phillips
head
See Figure F.14.
7. Remove leads H1 and H2 by
unscrewing the terminal screws
with a Phillips head screw driver.
See Figure F.14.
1J21
See
unscrewing the
screw driver.