10
Fig. 4 - Lever Switch Assembly/12-ft. Cord, P/N 996356
(Continued from page 8).
Before installing a new end fitting, apply a thin film
of Dow Corning Heat Sink Compound No. 340
(73585976) to both the male and female threads.
Reassemble the torch in reverse order. When reas-
sembling, tighten the lock nut hand tight, and then
tighten another 3/16 to 1/4 of a turn (approx. 125 in.-
lbs.) with a wrench. This should provide enough load-
ing on gasket to prevent water and gas leakages.
8.
G. LEVER SWITCH ASSEMBLY
If part replacement on the lever switch assembly is nec-
essary, refer to Fig. 4 and seperate the two halves of the
switch body by removing the two slotted No. 8-32 x 3/8-
in. screws. Then proceed as directed below. You can
pull back the rubber band off the torch handle and cut
the plastic tape wrappings about the service lines for
convenience but it is not necessary unless the switchcord
replacement is also involved
Remove insulating strip (996340).
1.
Carefully clamp lower half of body (996212) in vise
and drive out 1/8-in. dia. dowel pin (6190-0400); le-
ver, lever return spring, and actuator spring will drop
out.
2.
Lift out switch (181W34) from the locating lugs on
body.
3.
If replacing the micro switch only, unsolder the con-
nections. Do not snip off the leads. Replace switch
by soldering the black lead (or longer lead) to the
normally open terminal (NO) and the white lead to
the common terminal (C).
4.
If cord removal is necessary or if cord and switch
assembly is being replaced, use 5/64-in. hex socket
wrench and loosen set screw (6133-0876). The brass
strain relief (61N67) may be wedged in the body. If
wedged, hit the strain relief through the slotted open-
ing of the body with a screwdriver. This should free
the strain relief and the switch and cord assembly
can then be removed.
5.
To replace switch and cord assembly, switch
(181W34), or other parts:
To reassemble lever switch assembly:
Insert strain relief into body (if cord was removed).
1.
Locate holes through the switch onto the lugs of the
body and slide into place. Move the strain relief back
and forth as required. Be sure the leads are com-
pletely down in the deep recess of the body.
2.
Tighten strain relief set screw (6133-0876) until top
of the screw is flush with body surface.
3.
As illustrated in Fig. 4, place in position the actuator
spring, lever, and lever return spring in that order.
4.
Hold the parts in position with your thumb and align
the holes of lever body. Insert dowel pin and tap
lightly with hammer until dowel pin is completely in
5.
(2) SCREW
No. 8 - 32 x 1/4-in.
(2) SCREW
No. 8 - 32 x 3/8-in.
2-PIECE
BODY
996212
SWITCH -181W34
(Included in 996359)
ACTUATOR SPRING - 58N18
LEVER RETURN SPRING - 58N19
INSULATING STRIP - 996340
SWITCH AND CORD ASSY. - 996359
“A”
“A”
SET SCREW
61330876
No. 8 - 32 x 1/4-in.
INCLUDES:
SWITCH - 181W34
CORD - 7363-5182 - 12-ft.
PLUG - 2062336
STRAIN RELIEF - 61N67
LEVER - 58N17
