Installation Guide

rev 082211 Mighty Mule FM402 Installation Instructions 5
Tools and Materials
Tools Needed:
• Power Drill
• Open End Wrenches —
1
/2" and
9
/16"
• Adjustable Wrench
3
/8" Drill Bit
• Hacksaw or Heavy Duty Bolt Cutters
• Small Flat Bladed Screwdriver
• Large Phillips Screwdriver
• Tape Measure
• Level
• Wire Strippers
• C-Clamps — small, medium, and large
• Center Punch
• Hammer (for center punch)
• Extra person will be helpful
Materials You May Need for the Installation:
These items are NOT included with the gate opener kit. Some of these items can be purchased or special ordered
through your retailer. Please see page 26 or www.mightymule.com.
Low voltage wire [RB509] will be needed to run from the transformer to the opener control board; length
depends upon the distance between the transformer power supply and the control box. (Page 14 & 26)
If your gate is more than 1000' away from an AC power source you will need to use at least one 10 Watt solar
panel [FM123] or two 5 Watt panels (FM121) to charge the 12 Volt battery. (Page 2 & 26)
PVC conduit for protecting wiring. (Page 6)
Push-To-Open Brackets [FM148] are required if gates open out from property. (Page 3 & 26)
Materials to reinforce thin walled tube or panel gates. (Page 7)
Depending on the type of gate, a horizontal cross member or mounting plate may be needed to mount the front
of the opener and gate bracket to the gate. (Page 3 & 7)
Some installations may require mufer clamps for the gate bracket. (Page 7)
(2)16 AWG crimp on fork lugs (Page 15)
Surge protection for transformer. (Page 16)
Weather proof outlet is required if transformer is plugged into outside outlet. (Page 16)
Some types of installations require U-Bolts for closed position stop plate. (Page 11)
A low prole ground stop is required for dual gates when using the Mighty Mule gate lock. (Page 11)