2004 EZGo TXT PDS 36V motor help

[Stevepeacock911]

What are the uses of A1, A2, F1 and F2? Is one or more of these a ground for the motor? What changes the polarity that allows the motor to run in reverse. Is there a way to bench test this motor before installation with either jumper cables or a simple test with a volt ohm meter? Thanks

[JohnnieB]

Originally Posted by Stevepeacock911

1. What are the uses of A1, A2, F1 and F2? Is one or more of these a ground for the motor?
2. What changes the polarity that allows the motor to run in reverse.
3. Is there a way to bench test this motor before installation with either jumper cables
4. or a simple test with a volt ohm meter? Thanks

1. A1 & A2 Connect the battery pack to the Armature via the MOSFETs between B- and M- (labeled A1 on a 1206MX controller) in the high power section of the controller. F1 and F2 connect the Field windings to the low power section of the controller.

2. The low power section is bi-polar. Reversing the direction of current flow in the field windings reverse the direction the armature spins.

3. The armature shaft only has one bearing, (at the brushes end) so the motor has to be connect to the differential to spin the armature electrically without damaging something.

4. Not many DMMs are accurate at low Ohms, but:
Between A1 and A2, you should get between 0.3Ω and 1.0Ω.
Between F1 and F2, you should get between 1.0Ω and 2.0Ω.
Between A1 and F1, you should get OPEN.
Between F1 and motor case, you should get >5Megohms.