MOTOR TESTING
DC motors can be easily tested in a number of ways. Many times a
motor is replaced only to find another problem exists so be sure to test
the motor if you think it is a problem.
Methods to test a motor:
1) Cordless drill battery- get a fully-charged cordless drill battery
and on most treadmills connect the red and black motor leads to
the battery (some have different colors but if you have two wires
and get it hooked up backwards, the motor will just run
backwards and won’t be harmed). If good, the motor should
operate at about 1 MPH.
2) Car battery- these are 12VDC high amp batteries so the motor
will turn slowly but you can walk on the belt. Always be careful
with battery acid on these things so we don’t recommend
bringing them in the house…take the treadmill to the battery.
3) Lantern battery- a fully charged lantern battery should operate
your motor at a slow speed but lacks the amperage to have
someone walk on the belt.
4) Use an outside DC converter with a variable speed input. The
most complex but also the best way to test a motor. If you have
a way to do this, it is the preferred method and how we do it in
the field on local service calls.
For other motor diagnoses, see the Loses Power When I Step on the
Belt section.
If you have questions, email us at doc@treadmilldoctor.com
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