| To check that the motor is operational, connect the negative terminal
of a 12 volt battery (for 96 volt motor) or 6 volt battery (for 48 volt motor) to the
"S2" terminal of the motor. Connect the positive terminal of the battery to the
"A2" motor terminal. With the  motor held down, connect a jumper
wire (strap) between terminals "A1" and "S1." The idling motor will
probably draw about 20 Amps from a charged battery. The motor will turn in a clockwise
direction as viewed from the shaft end.
DO NOT apply more than the recommended voltage to an unloaded series
motor as it can easily overspeed causing a great deal of destruction. Maximum motor speed
for CitiCar/ComutaCar motors is 3600 rpm with a normal operating RPM of 3000 RPM.
For "bench testing", operating unloaded for testing and
operating for seating brushes, forced air cooling is not needed. Proper shop safety
precautions should be exercised when testing any electrical device. Eye protection, gloves
and no loose fitting clothing just to name some. DO NOT connect anything to the motor
shaft as the motor developes very high torques. These motors can provide in excess of 1
foot pound of torque per amp of draw - a locked rotor can draw up to 900 amps! Be sure
your motor is securely held down for all testing.
Note: The motor used in many of the CommutaCars do not have front bearings! They use
the bearing in the differental to support the armature. A special adapter must be used to
bench test these motors.
Copyright © 1997 Assembled Products, Inc.
This Home Page was created April, 1997
Most recent revision
November 09, 2006 |
