Mighty Mule FM502 Green Board - Manual (Page 32)

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Installing the Receiver
Use the transmitter to check the range of the receiver before permanently mounting it.
Consider the following when mounting the receiver:
• Standard receiver cable length is 10 feet (receivers with a longer cable are available as special
order items; call the GTO Sales Department). NEVER splice receiver cable!
• Run the cable through PVC conduit to protect it from damage.
• DO NOT run cable through metal conduit because the receiver signal range will be decreased.
• DO NOT run cable in conduit containing ac wiring.
• DO NOT mount receiver on a metal fence or post; doing so will decrease signal range.
• The receiver range can vary from 50 to 100 feet depending upon weather, topography, and
external interference.
• DO NOT mount upside down.
FCC Regulation
This device complies with FCC rules Part 15. Operation is subject to the following
conditions:
1. This device may not cause harmful interference.
2. This device must accept an interference that may cause undesired operation.
Transmitter distance may vary due to circumstances beyond our control. NOTE:
The manufacturer is not responsible for any radio or TV interference caused by
unauthorized modifi cations to this equipment. Such modifi cations could void the
user’s authority to operate the equipment.
ALWAYS KEEP
SAFETY
AT THE TOP OF YOUR LIST WHEN ADJUSTING OR
SERVICING YOUR AUTOMATIC GATE OPENER!
STALL FORCE
MI
N
MA
X
IMPORTANT: For safety reasons the obstruction setting or For safety reasons the obstruction setting or Stall Force on
the Mighty Mule® control board comes from the factory set at the Mighty Mule® control board comes from the factory set at MIN (mini-
mum). In many gate installations this setting will need to be adjusted to over-
mum). In many gate installations this setting will need to be adjusted to over-
come the weight and size of the gates.
TThe Stall Force potentiometer on the control board operates like a volume potentiometer on the control board operates like a volume
control on a radio. It controls the obstruction sensitivity (or the amount of control on a radio. It controls the obstruction sensitivity (or the amount of
force the opener will apply to an obstruction) before it automatically stops
force the opener will apply to an obstruction) before it automatically stops
and reverses direction for approximately two
(2) seconds.
Use a small slotted screwdriver to turn the ar-
row in the center of the potentiometer. Adjust
the sensitivity from the MINIMUM position
where the gate operates without obstructing
from its own weight or the wind conditions in
your area.
NOTE: You may need to increase the
stall force in cold weather due to increased
resistance from gate hinges.