Mighty Mule FM502 Dual Swing - Blue Board - Manual (Page 15)

11
Preparation of the Gate
Step 1
The 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 arc without
binding or dragging on the ground. Note that gates
over 250 lb. should have ball bearing hinges with grease
fittings.
Step 2
The fence posts must be secured in the ground with
concrete so they will minimize twist or flex when the
openers are activated. We recommend you position the
openers near the centerline of the gates to keep the gates
from twisting and flexing and to avoid backsplash from
rainwater. The addition of horizontal or vertical cross
members (if they are not already in place) to provide
a stable area for mounting the gate brackets is also
important.
Installation Overview
Pull-to-Open Gates (Gate Opens into the Property)
The diagram shown below is an example of a pull-to-open installation on a chain link fence and dual gates. Mounting the
openers on a masonry column requires special procedures; see Column Installation Information on page 38 if you intend
to mount the openers on columns. Furthermore, if you have push-to-open gates, you will need to purchase two (2) push-
to-open brackets (see Accessory Catalog) to properly configure your system. See Push to Open Installation on page 32
before proceeding.
Horizontal Cross Member
Vertical Cross Member
Gate Swings Evenly and Freely
Hung Firmly and Plumb
Receiver
PVC conduit (not included)
to protect second opener
power cable and low voltage wire
from lawn mowers and weed eaters.
Post Bracket Assembly
Control Box with Battery
Gate Bracket
First Gate Opener
Concrete Poured
Around Gate Post
Run 1000' (max.) of low
voltage wire to control
box from transformer
(wire not included).
6' Power Cable
Closed Position Positive Stop Plates
120 Volt Indoor
Transformer
(surge protector
not supplied)
Second Gate Opener
500
UL325 SERIES ® E-Z GATE OPENER
L ISTE D US 500
UL325 SERIES ® E-Z GATE OPENER
LI STED US
500
UL325 SERIES ® E-Z GATE OPENER 1-800-543-GATE (4283) www.mightymule.com