Lincoln Electric COMMANDER 400 SVM133-B Service Manual page 100

F-46
PLUG J6
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.
SNUBBER
BOARD
LOCATION
(LEFT SIDE,
BELOW
FUEL TANK)
TROUBLESHOOTING & REPAIR
ACTIVE SCR TEST (continued)
FIGURE F.17 – CONTROL BOARD PLUG J6 LOCATION
FIGURE F.18 – SNUBBER BOARD PLUG J30 LOCATION
COMMANDER 400
P e l 9 9 6
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.
C3 C1 C2 C7
COMMANDER SNUBBER
F-46
PLUG J30