Installation
17
Doc 01-G0665
Rev C
Limit Switch Adjustments
Limit switches are pre-adjusted at the factory and should require only slight adjustments to suit
individual installations. Refer to Figure 14 to identify limit switches.
CAUTION
Never make adjustments before making sure that power is off and that operator direction is
selected by dip switch #1, pin #2 for left or right hand operation.
TO ADJUST CLOSE LIMIT SWITCH
1
Move gate to the desired fully closed
position.
2
Loosed set screw on close limit cam.
3
Rotate the close limit cam in the
same direction as the shaft turns to
close the gate. Stop at the point at
which the cam just clicks the limit
switch.
4
Tighten set screw securely.
TO ADJUST OPEN LIMIT SWITCH
1
Move the gate to the desired fully opened
position.
2
Loosed set screw on open limit cam.
3
Rotate the open limit cam in the dame
direction as the shaft turns to open the
gate. Stop at the point at which the cam
just clicks the limit switch.
4
Tighten set screws securely.
TO ADJUST AUXILIARY OPEN LIMIT SWITCHES
1
Maintain gate in open position.
2
Loosen set screw on auxiliary open limit cam.
3
Rotate the cam in the same direction as the shaft turns to open the gate. Stop at the
point at which the cam just clicks the limit switch and then advance the cam
approximately 1/8 to 1/4 inch further. This will put the auxiliary cam ahead of the open
cam. When the gate is opening, the auxiliary limit switch should energize approximately
(2) seconds before the open limit switch.
4
Tighten set screw securely.
0 1 -G 0 6 6 5 F9
AUX OPEN
DRIVE SHAFT
SET SCREW
AUX. SWITCH (OPTIONAL)
(23-2017)
LIMIT SWITCH “A” (23-2016)
LIMIT SWITCH “B” (23-2016)
LIMIT SWITCH
(23-2016)
LIMIT CAM
Figure 14
OPERATOR “HAND”
OPEN LIMIT
CLOSE LIMIT
Right
A
B
Left
B
A
Table 7
