For Installers Familiar With Doorking Products (Limit Sensors Adjustment) - DoorKing 4302 Mounting Instructions

Limit Sensors Adjustment
This guide is for installers familiar with DoorKing products ONLY. DO NOT use this as your only source to wire, adjust limit
sensors and DIP-switches if you are unfamiliar with this operator. Please refer to the control box manual you are installing for
complete wiring, adjustments and DIP-switch settings for this operator.
Power to the circuit board must be ON when
adjusting the limit sensors.
The operator MUST OPEN GATE upon initial power up
and OPEN command.
If the operator closes gate after giving first open
command, shut off power and reverse DIP-switch SW1,
switch 1 setting otherwise operator will NOT function
correctly.
With operator cover removed, un-lock operator
A
with release tool to release arm.
B Manually move the gate to the desired open
or closed position. Loosen adjustment screw
and slowly spin the appropriate limit ring
until the corresponding LIMIT LED on the
circuit board lights up, then tighten screw.
Manually move the gate to other
position. Repeat process with
the other limit ring.
C
Re-lock operator with
release tool and test the
gate stopping positions.
Re-adjust if necessary.
D
Re-install the operator cover.
Limit Switch
Wire Colors
3 Limit - Orange (Bottom)
4 Slo Dwn - Red (Bottom)
5 Limit - Yellow (Top)
6 Slo Dwn - Green (Top)
(White wires are Common)
E Adjust the Secondary operator limit rings if dual
operators have been installed. DIP-switch SW 1,
switch 2 controls secondary operator opening
direction. DIP-switch SW 1, switch 7 MUST be
ON when using dual operators.
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Adjustment
Screw
3 Limit
4 Slow Down
5 Limit
6 Slow Down
Operator Cable
Primary Operator
Secondary Operator
Single or Dual Operators
SW 1
Limit Switch Adjustment Note:
Two thru-bolts 13 mm can be
loosened to allow the electronic
pallet to be moved around a little.
Make sure ALL 4 limit switches
make good contact with the
2 limit rings.
B
B
If factory wired jumpers are installed on
operator terminals, they must be
removed or operators will not function.
Limit LEDs
7-Wire
Note: 3 and 5 limit LEDs can be
Open or Close limits depending
on DIP-switch SW 1, switch 1
and 2 settings
Top Limit
Ring
Adjustment
Screw
Bottom
Limit Ring
6004-065-X-2-21