Lincoln Electric PRO-CUT 55 SVM140-A Service Manual page 101

F-64
PRIMARY POWER BOARD AND FILTER CAPACITOR
REMOVAL AND REPLACEMENT (continued)
FIGURE F.24 – POWER BOARD HEATSINK AND CAPACITOR REMOVAL
CAPACITOR
CLAMP
3/8" MOUNTING
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.
TROUBLESHOOTING & REPAIR
INSULATOR (2)
PRO-CUT 55
PRIMARY
POWER
P.C. BOARD
MOUNTING
SCREW (2)
9. Carefully remove the primary power board
from the heat sink.
CAUTION
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.
F-64
7/16"
CAPACITOR
BOLT (4)
SOCKET
HEAD
SCREW (4)