x MM571W / MM572W Installation Instructions
Technical Specifications
• Low friction screw drive (linear actuator) rated for -5 ºF to +160 ºF (-20 ºC to +71 ºC).
• Opener length with push-pull tube fully retracted is 40.25", mounting point to mounting point. Maximum stroke is 20".
• Maximum opening arc of 110º. Approximate opening time (90º): 14 seconds, depending on weight of gate.
• The system is powered by a 12 Vdc battery (included). Optional automotive or marine battery may be used (not included).
• Battery charge is maintained by Mighty Mule transformer or optional Mighty Mule Solar Panels.
• The system uses 25 A Mini ATC blade-style fuses.
NOTE: The transformer should not be directly connected to any battery. Do not replace fuses with higher ampere rated
fuses; doing so will void your warranty and may damage your control board.
• Adjustable auto-close timer (OFF, 3 to 120 seconds), and Dual Sense Technology Entrapment Protection.
• Accessory terminal block fully compatible with all Mighty Mule access controls.
• Audio entrapment alarm sounds if unit encounters an obstruction twice while opening or closing.
MIGHTY MULE 571W/572W GATE OPENER
NOTE: Ball bearing hinges should be used on all gates weighing over 250 lb.
OPERATIONAL CAPACITY
The Gate Capacity Chart below shows the recommended maximum gate length to weight. The minimum recommended gate length
is 5 ft.
Maximum Weight (lbs.) Maximum Length (ft.)
850 8
750 10
650 12
550 14
450 16
350 18
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