Lincoln Electric NA-5N Service Manual page 132

F-79
TACH PC BOARD REMOVAL AND REPLACEMENT
7. Carefully remove the rotating disc
and tach PC board together. Note
spacer washers underneath the disc.
8. If tach PC board is to be removed
carefully remove leads from connec-
tion box and cover plate.
TACH
PC BOARD
TROUBLESHOOTING & REPAIR
SCREWS
FIGURE F.14 PICK-UP ASSEMBLY AND COVER
PHILLIPS
SCREW
FIGURE F.15 ROTATING DISC, NUT AND TACH BOARD
TACH ASSEMBLY
COVER
DISC NUT
NA-5
F-79
(Continued)