16
Mighty Mule FM402 Installation Instructions
rev 12-14-15
Set the CLOSED Position Limit
for PULL-TO-OPEN Installation
Your transmitter must be able to operate the gate. If not, see "Personalize Your Transmitter Setting" on page 18.
Note: The OPEN limit is when the opener is fully retracted and the gate is in the full open position. The open limit setting
can only be adjusted by moving the gate bracket. To achieve the optimum closed position, you must adjust the CLOSED
limit setting:
Step 1
Make sure the Control Box is ON and that
the gate is in the OPEN POSITION (arms fully
retracted).
Step 2
Press and HOLD the 2nd Opener CLOSE
button on the control board and be prepared
to RELEASE the button when the gate reaches
the desired closed position/limit. Use the JOG
OPEN and CLOSE buttons to "fine tune" the
gate position if neccessary.
Step 3
Press and HOLD the 1st Opener CLOSE button
on the control board and be prepared to RELEASE the button when the gate reaches the desired closed position/limit.
Use the JOG OPEN and CLOSE buttons to "fine tune" the gate position if neccessary.
Step 4
With the gates in in the desired closed positions PRESS and HOLD the SET LIMIT button until the alarm and RED Light
come on. Then release the button.
NOTE: The opener must be extended more than 7 inches to set limits.
Step 5
NOTE: When the control box cover is removed the receiver range is reduced to less than 5 feet.
Press the transmitter button once (within 5 feet of the control board) and allow the gates to fully open. The alarm will beep
once when both gates reach the OPEN LIMIT. This indicates the limits for both arms are programmed in memory.
Step 6
Press the transmitter button and allow the gates to fully close to verify that they stop at the desired positions. Repeat
Steps 2-5 if correction is needed.
SURGE PROTECTOR
Transformer
MIN
MAX OFF
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
STALL FORCE
OPEN < JOG > CLOSE
PWR.
SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
FIRST Opener
JOG Buttons
SET LIMIT Button
SET LIMIT Light
SECOND Opener
JOG Buttons
Step 7
Plug the transformer into the electrical outlet. Use of a surge protector
with the transformer is
strongly
recommended. If electrical outlet is
located outdoors, outlet and transformer should be protected by a
weatherproof cover.
