Left side, Snubber board, Troubleshooting & repair – Lincoln Electric INVERTEC SVM158-A User Manual
Page 124: Snubber board removal and replacement (continued)
PROCEDURE
1. Remove input power to the V350-PRO.
2. Using a 5/16” nut driver remove the case wrap-
around cover.
3. Perform the Input Filter Capacitor Discharge
Procedure detailed earlier in this section.
4. Locate the snubber board.. See Figure F.32.
5. Remove small lead #B1 from the board. See
Figure F.33.
6. Remove the four bolts using a 7/16” socket. Two
of these bolts have leads #30 and #10 connected
to them. Note the position of all leads and associ-
ated washers upon removal.
7. Carefully remove the snubber board.
8. Replace the snubber board.
9. Replace the bolts, leads, and washers previously
removed. Torque bolt to 30-40 Inch Lbs.
10. Replace the case wraparound cover.
TROUBLESHOOTING & REPAIR
F-74
F-74
V350-PRO
SNUBBER BOARD REMOVAL AND REPLACEMENT (continued)
LEFT SIDE
Snubber
Board
FIGURE F.32. – SNUBBER BOARD LOCATION
Lead B1
Lead 30
Lead 20
FIGURE F.33. – SNUBBER BOARD LEADS (CLOSE UP)