RYTEC Pharma-Roll, Installation Manual

15

INSTALLATION—PNEUMATIC KILL SWITCH CHECK AND ADJUSTMENT

NOTE: If the reversing edge is set too sensitive,

the door may reverse direction during the
closing cycle, without the reversing edge
coming in contact with an object. If this
occurs, readjust the reversing edge
switch.

PNEUMATIC KILL SWITCH CHECK AND 
ADJUSTMENT

A kill switch has been mounted in the bottom bar 
assembly to prevent door operation if the breakaway 
bottom bar becomes separated from either side column.

Kill Switch Check

Take precautions to prevent the door from
being opened or closed while performing
the following procedure.

1.

Raise or lower the door to approximately head or 
chest height and stop the door.

NOTE: It should not be possible to restart the door

until the door has been reassembled and
the control system reset.

2.

Push the breakaway bottom bar out of the side col-
umn. Door should not operate until control box is 
reset. (See Figure 35 and Figure 36.)

If the kill switch did not operate properly: 

Adjust 

the kill switch and then recheck it. (See “Kill Switch 
Air Bleed Adjustment” on this page.)

If the kill switch operated properly: 

Reinstall the 

bottom bar into the side column. (See “RESET-
TING BOTTOM BAR ASSEMBLY” on page 16.)

Figure 35

Figure 36

Kill Switch Air Bleed Adjustment

1.

The kill switch is mounted in the bottom bar assembly, 
on the same side as the door motor. To access the 
switch, first remove the access cover. (See Figure 37.)

Figure 37

2.

Make sure the clear PVC hose is tight on the air 
input post so that air leakage cannot occur and 
vibration will not cause the hose to fall off. Also 
make sure the hose is not kinked. (See Figure 38.)

Figure 38

3.

The air bleed has been set at the factory and should 
not require adjustment. To adjust the air bleed, turn 
the air bleed adjustment screws located on the front 
and back of the switch fully clockwise, but do not 
overtighten. Then turn each screw back counter-
clockwise one full turn. (See Figure 38.)

4.

To adjust the kill switch sensitivity, see “Kill Switch 
Sensitivity Adjustment” on page 16.

A7500050

Bottom Bar

Plastic Tabs Out
of Side Column

Air Switch Bladder 

A8500179

Bottom Bar Assembly

Breakaway Tabs

A7500198

Bottom Bar

Access Cover

A7500202

PVC Hose Must 
Be Tight

on

Air Input Post

Kill Switch (On
Same Side as
Door Motor)

Air Bleed
Adjustment
Screw (One
on Front and
One on Back