CYLINDER DOOR SWITCH
For 30, 50, and 75 Pound Tumblers
The door switch should be adjusted so the cylinder stops
when door is opened two inches (5.08 cm), plus or minus
1/4 inch (.63 cm). This switch is a normally open switch
and is closed by the interlock rod when the door is closed.
If adjustment is required, refer to Figure 27 and proceed
as follows:
1. Close door and start tumbler, slowly open loading
door. Cylinder and heat system should shut off when
door is open two inches (5.08 cm) plus or minus 1/4
inch (.63 cm).
2. Slowly close loading door. When door is two inches
from being fully closed, the tab should contact the
interlock rod and depress it enough to operate the
switch arm closing the switch with an audible
"click".
3. If interlock rod does not depress enough to operate
the switch, bend tab on loading door OUTWARD one
eighth inch (.32 cm) and repeat steps "1" and "2".
Bend tab outward an additional 1/8, inch (.32 cm) if
required to obtain proper rod movement and switch
operation.
4. If proper operation is not obtained by procedure
outlined in step "3", unlock and open top panel and
remove control panel. Loosen the two adjusting
screws holding the switch to the bracket and move
switch 1/8, inch (.32 cm) toward the front of the
switch bracket and retighten the screws. Repeat steps
"1" and "2". If switch and rod still do not have
sufficient movement, move switch forward an
additional 1/8 inch (.32 cm).
58
© Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
ADJUSTING
SWITCH
SCREWS
ARM
SWITCH
BRACKET
INTERLOCK
ROD
Figure 27
DOOR
SAFETY
SWITCH
TAB
T249IE1A
M414670