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HD272 Installation Instructions
Setting Dual Sense Detection and Auto Close Timer
Do not use the Dual Sense Stall Force adjustment to compensate for a gate that is sticking or binding. Excessive Stall Force may cause
damage to the gate operator or gate system or injury or death.
The Stall Force adjustment controls the amount of force the opener will apply against an obstruction before it stops and reverses
direction. The adjustment on the control board operates like a volume control on a radio. It controls the amount of force the opener will
apply to an obstruction before it automatically reverses direction.
The Stall Force adjustment is located on the control board. Turn the “STALL FORCE” arrow in the center of the potentiometer with
small flat head screwdriver. Adjust the sensitivity to the point where the gate operates without obstructing from its own weight or the
wind conditions in your area.
NOTE:
You may need to increase the stall force in cold weather due to increased resistance from gate hinges. However, the
adjustment must remain as near to minimum as possible and when the weather improves decrease the setting to the appropriate
position.
Setting Auto-Close Time
The Auto-Close determines how long the gate will remain open before it automatically closes. The factory setting is OFF. Use a small
flat blade screwdriver, you can adjust the settings to OFF, or from 3 to 120 seconds.
NOTE
: Auto-Close timer is disabled (gate will not automatically close) if gate is not at the fully open position.
VAR5
VAR6
K1
PF1
K2
BATT
+
BATT
–
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN
MAX OFF
JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
G
TO Inc.
Tallahassee, FL
R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR.
SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR
.
FIRST OPR
.
RED
BLK
14 VAC
OR
SOLAR
ON OFF
MIN
MAX
STALL FORCE
VAR5
VAR6
K1
PF1
K2
BATT
+
BATT
–
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN
MAX OFF
JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
G
TO Inc.
Tallahassee, FL
R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR.
SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR
.
FIRST OPR
.
RED
BLK
14 VAC
OR
SOLAR
ON OFF
OFF
120
SEC.
AUTO CLOSE
CAUTION
For safety reasons the Dual Sense Stall Force setting on the Mighty Mule control board comes from the factory set to the 10 o'clock position. This
setting may need adjustment depending on the size and weight of the gate.
ALWAYS KEEP SAFETY AT THE TOP OF YOUR LIST WHEN ADJUSTING OR SERVICING YOUR GATE SYSTEM.
