Troubleshooting & repair, Scr removal and replacement (continued) – Lincoln Electric IDEALARC CV-300 User Manual
Page 80
F-41
TROUBLESHOOTING & REPAIR
F-41
IDEALARC CV-300
PROCEDURE FOR THE 5/8
INCH WIDE SPRING
1.
Place a piece of sleeving around
each bolt.
2.
Insert bolts thru the leaf spring. The
leaf spring is flat so the orientation of
the leaf spring does not matter.
3.
Place the steel pressure pad in the
housing with the 1/8 inch wide
standoff facing up. See Figure F.23.
Figure F.23 - Housing and Pressure
Pad for 5/8" Wide leaf spring.
4.
Insert bolts and leaf spring into plas-
tic housing being sure that the steel
pressure pad remains in position.
Pressing on the bolt heads should
produce a rocking action of the
spring in it's housing.
5.
Insert clamp assembly thru heat
sinks. Install nuts. Tighten clamp
nuts equally on bolts until finger
tight. Be sure that the leaf spring is
not cocked in the housing. See
Figure F.24. Heat sinks may not be
exactly as pictured.
6.
Re-inspect the SCR for proper seat-
ing.
Figure F.24 - Clamp Assembly.
SCR REMOVAL AND REPLACEMENT (CONTINUED)
STEEL PRESSURE PAD
5/8"
HOUSING
HOUSING
HEAT SINK
1/4-28 OR 1/4-20
CAP SCREW
SLEEVING
S.C.R.
HEAT SINK
PLAIN WASHER
HEX NUT
LEAF
SPRING
STEEL
PRESSURE
PAD