Installation Guide
  Mighty Mule MM360 Installation Instructions 19
At this stage of the installation, the opener should be reinstalled on 
an open gate and the closed position stop plate should be in place.
Check List
• The gate is plumb, level, and swings smoothly on its hinges.
• A plate or support was added for the gate bracket (if necessary).
• The opener is level and mounted on the centerline of the gate.
• Make sure all hardware is tightened at this time.
Gate Swings Evenly and Freely
Hung Firmly and Plumb
1. KEEP CLEAR! Gate may move at any time.
2. Do not allow children to operate gate or 
play in gate area.
3. This gate is for vehicles only. Pedestrians
must use a separate entrance.
Moving Gate Can Cause
Injury Or Death
WARNING
!
Horizontal Cross Member
Single Gate Opener
Post Bracket Assembly
Gate Bracket
Closed Position Stop Plate
Preparing to Activate the System
In order to have easy access to the control board during the rest of the 
installation, remove the opener and remount it upside down.
Bottom 
Access Panel 
ON 
OFF 
ON/OFF 
Switch 
IMPORTANT:
Return the opener arm to the upright 
position when installation is complete 
to prevent water damage to the control 
board. Refer to page 31










