Troubleshooting & repair, Caution – Lincoln Electric PRO-CUT 55 SVM140-A User Manual
Page 101
TROUBLESHOOTING & REPAIR
F-64
F-64
PRO-CUT 55
FIGURE F.24 – POWER BOARD HEATSINK AND CAPACITOR REMOVAL
CAPACITOR
CLAMP
3/8" MOUNTING
INSULATOR (2)
MOUNTING
SCREW (2)
SOCKET
HEAD
SCREW (4)
7/16"
CAPACITOR
BOLT (4)
PRIMARY
POWER
P.C. BOARD
PRIMARY POWER BOARD AND FILTER CAPACITOR
REMOVAL AND REPLACEMENT (continued)
7. Using the slot-head screw driver, remove the
two mounting screws from the left side of the
primary power board. See Figure F.24. Take
note of insulator placement for reassembly.
8. Using the 3/16” allen type wrench, remove
the four socket head screws and lock wash-
ers mounting the primary power board to the
heat sink.
9. Carefully remove the primary power board
from the heat sink.
Be sure to follow the recommended static-free
methods for handling printed circuit boards.
Failure to do so can result in permanent damage
to the equipment.
CAUTION