3
MM272 Installation Instructions
2. Check Direction of Gate Swing
The Mighty Mule 272 is designed for
PULL-TO-OPEN
installations.
PUSH-TO-OPEN
installations require two
Push-To-Open brackets [FM148]. Push-to-Open Installation
.
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 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
).
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
Gate Grounding
(recommended)
• Shorter wire (6 AWG) is better, 1 to 2 feet recommended.
• Bolt ring terminal at end of cable 4 - 6 inches above
ground level.
NOTE: No grounding system absolutely protects against
lightning strikes. If installed correctly, a grounding system
will help minimize damage to your gate opener.
Copper clad ground rod
(not included)
Ground
Ground
2 Inches or
Less above
ground
Copper ground
rod clamp
Copper Single
Conductor Lug
3/16” Drilled
Pilot Hole
6 ft. deep
or more
Metal gate post
Metal Gate Post
12awg or Larger
Gate Opener
Control Box
2 ft. or Less
from post
