Mighty Mule FM702 - Manual (Page 14)

10
DRIVE
• Low friction screw drive (linear actuator) rated for –30 ºF to +200 ºF (–34 ºC to +93 ºC).
• Powered by a 12 V motor with integral case hardened steel gear reducer. Motor speed reduced to 220 rpm. Generates
330 ft. lb. of torque at 12 V.
• Opening arc: minimum 80º to maximum 110º. Approximate opening time (90º): 15 to 17 seconds, depending on weight
of gate.
POWER
• The system is powered by a 12 VDC, 7.0 Ah, sealed, rechargeable lead acid battery.
• Battery charge is maintained by a 120 VAC, 18 VAC output transformer rectified to 14.5 VDC (20 VA) through the
GTO control board. Two (2) blade-style control board fuses are rated for 15 A.
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.
• Battery charge is maintained by GTO Solar Panel Charger: float voltage of 14.5 VDC output from a 19 3 / 8 " x 8 1 / 2 "
silicon alloy panel. Generates 5 W at 300 mA. A gated diode on the control board prevents battery discharge.
CONTROL
• GTO microprocessor-based control board is set for pull-to-open gate installations. DIP switches can be adjusted to
accommodate an optional kit for push-to-open gates (see Accessory Catalog).
• Control board has temperature compensated circuits.
• A circuit on the control board regulates charging. "Sleep draw" is 40 mA; "active draw" is 2 to 5 A.
• Auto-memorization of digital transmitter code.
• GTO remote-mounted RF receiver tuned to 318 MHz.
• Limit controls are mechanical. Adjustable range of push-pull tube is 7
1 /
2 " to 11 1 /
2 ". Opener length with push-pull tube
fully retracted is 33 3 / 4 ", mounting point to mounting point.
• Adjustable auto-close timer (OFF to 120 s), inertia, and obstruction sensitivity using three (3) potentiometers.
• Power terminal block accommodates a transformer and solar panels.
• DIP switches simplify setup of gate opener.
• Accessory terminal block fully compatible with push button controls, digital keypads, safety loops, etc.
• Control board allows connection of safety edge sensors and photoelectric sensors.
• Audio entrapment alarm sounds if unit encounters an obstruction twice while opening or closing.
OPERATIONAL CAPACITY
• Depending upon the length of the gate leaves and the number of operational cycles per day, the Mighty Mule Gate
Opener ® can open dual gates weighing up to 350 lb. per leaf—if all installation procedures have been
properly followed. Ball bearing hinges should be used on all gate leaves weighing over 250 lb.
NOTE: An operation cycle is one full opening and closing of the gate. The numbers shown in this chart are for single
gate applications, cycles for dual gate applications will be about half of those with a single gate.
To determine the number of cycles the gate opener will perform using solar panels, please see the specifications listed on
page 26 or call (800) 543-GATE [4283] or (850) 575-0176 for more information.
MIGHTY MULE GATE OPENER
Technical Specifications
These specifications are subject to change without notice.
Gate Weight (per gate leaf)
Gate Length (per gate leaf)
Gate Capacity Chart (estimated number of cycles based on use with a transformer)
16 ft.
14 ft.
12 ft.
3.5-10 ft.
135
145
155
165
120
130
140
150
105
115
125
135
NONE
85
95
105
NONE
NONE
60
70
50 lb. 100 lb. 150 lb. 250 lb. 350 lb.