Operating instructions

M413620

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).

Figure 27

SWITCH

ARM

ADJUSTING

SCREWS

DOOR

SAFETY

SWITCH

INTERLOCK

ROD

SWITCH

BRACKET

TAB

T249IE1A