Installation Guide

Mighty Mule MM360 Installation Instructions 15
Install Post Bracket Assembly and Gate Bracket
Step 3
With the gate in the open position (up to 110º from its closed position), and the opener fully retracted, adjust
the post bracket assembly and gate bracket until the opener is level. While holding the opener level, use
C-clamps to temporarily keep the post bracket assembly and gate bracket in their respective positions on the
fence post and gate.
Step 1
Insert the
3
/8" x 2" bolt through
the center hole of the post
brackets and post pivot
bracket as shown. Fasten a
3
/8" washer,
3
/8" lock washer
and
3
/8" nut on the end of the
bolt. DO NOT overtighten
the nut because the post
pivot bracket will have to be
adjusted later.
Step 2
Attach post bracket assembly and gate bracket to the opener with the clevis pins and bushings. Secure the
clevis pins with hairpin clips.
3/8" x 2" Bolt
3/8" Nut
Post Pivot Bracket
Post Bracket
Post Bracket
3/8" Lock Washer
Post Bracket Assembly
3/8" Washer
NOTE: The following steps
are intended for pull-to-open
gate installations. If you are
mounting your opener on a
push-to-open gate (e.g., a gate
on a sloped driveway) you will
need to purchase a FM148. Also,
see Push-to-Open Installation
beginning on page 32.
Clevis Pin
Hairpin Clip
Post Bracket Assembly
Bushing
Rear Mount
Opener
Clevis Pin
Hairpin Clip
Bushing
Gate Bracket
Front Mount
Level Opener
Fence Post
Gate In Open Position
Opener Arm Fully Retracted
LEVEL horizontal cross member
Post Bracket Assembly
Gate Bracket