Troubleshooting & repair, Active scr test (continued), Test procedure – Lincoln Electric COMMANDER 400 SVM133-B Manuel d'utilisation
Page 100
TROUBLESHOOTING & REPAIR
F-46
F-46
COMMANDER 400
ACTIVE SCR TEST
(continued)
FIGURE F.17 – CONTROL BOARD PLUG J6 LOCATION
PLUG J6
P e l 9 9 6
TEST PROCEDURE
1. Turn OFF the engine.
2. Perform the Case Removal procedure
(including front shroud removal).
3. Disconnect the welding cables from the
welding output terminals.
4. Using the 5/16” nut driver, remove the con-
trol board cover. See Figure F.17.
5. Locate and remove molex plug J6 from the
control board. See Figure F.17.
6. Using the 3/8” nut driver, locate and remove
the snubber board cover. See Figure 18.
7. Locate and remove molex plug J30 from the
snubber board. See Figure F.18.
FIGURE F.18 – SNUBBER BOARD PLUG J30 LOCATION
PLUG J30
COMMANDER SNUBBER
C3
C1
C2
C7
WARNING
SNUBBER
BOARD
LOCATION
(LEFT SIDE,
BELOW
FUEL TANK)