Mighty Mule MM402 - Manual (Page 13)

rev 082211 Mighty Mule FM402 Installation Instructions 3
2. Check Direction of Gate Swing
The Mighty Mule is designed for PULL-TO-OPEN installations. PUSH-TO-OPEN installations require two Push-To-Open
brackets [FM148]. Push-to-Open Installation Instructions begin on page 19.
3. Prepare the Gates
• Gates must be plumb, level, and swing freely on their hinges.
• Wheels must NOT be attached to the gates.
• The gates must move throughout their arcs without binding or dragging on the ground.
• Note that gates over 250 lb. should have ball bearing hinges with grease fittings.
• The gate post should be be secured in the ground with concrete so it will minimize twist or flex when the opener
is activated.
• The addition of a horizontal or vertical cross member (if one is not already in place) to provide a stable area
for mounting the gate bracket is also important.
• Trench the driveway in order to lay PVC conduit for the second opener power cable (see illustration on page 6).
Your Property Your Property
Pull-To-Open
(arm retracts to open)
Push-To-Open
(arm extends to open)
Horizontal Cross Member
Vertical Cross Member
E
A
B
C
D
F
A – Level D – Posts Secured in Concrete
B – Plumb E – Centerline Mounting
C – Free Swinging F – Good Working Hinges