Lincoln Electric PRO-CUT 60 SVM104-A Service Manual page 59

TROUBLESHOOTING & REPAIR
TORCH, TORCH CABLE ASSEMBLY, INTERNAL TRIGGER,
c. If any of the above tests do not
agree with the expected normal
resistance specifications, then
the torch and/or cable must be
repaired or replaced.
ELECTRODE
6J5
3J5
4J5
C1
5J5
24 VAC
7J5
#335 8J5
#3L
3J10
6J10
FIGURE F.5-Torch and Cable Wiring Diagram
INTERNAL TRIGGER AND
SAFETY CIRCUIT TEST
PROCEDURE
1. Turn the PRO-CUT 60 ON/OFF
Power Switch to OFF.
2. Disconnect input power supply
to machine.
3. Remove the roof and the Right
and Left Case Side Assemblies
using a 5/16" nut driver.
AND SAFETY CIRCUIT TEST
CONDUCTOR IN GAS TUBE
#336 RED
Pin #1
#2 BLUE
Pin #2
#4 PURPLE
Pin #4
#337 WHITE
Pin #3
PILOT
d. Go to INTERNAL TRIGGER
AND SAFETY CIRCUIT TEST if
all resistance values are within
the specified range.
CONE
N.C.
SWITCH
THERMOSTAT
SAFETY WIRE
GUN TRIGGER
TORCH HEAD
4. Perform the CAPACITOR
DISCHARGE PROCEDURE.
5. Disconnect the
connector.
6. Locate Plug J5 on the Control
Board. See Figure F.6 and
Figure F.1 for the location of the
Control Board and Plug J5.
7. Locate the 4-pin
cle. See Figure F.6 for location.
F-18
ELECTRODE
NOZZLE
4-pin
recepta-
PRO-CUT 60