48volts on all motor terminals

pbearros · 09-20-2019, 09:11 PM

I have been going over this 2004 precident all week. It had no batteries at all, I purchased a new set today and installed them. I discovered a couple of connections to the motor that were not according to the diagram and corrected them. I was able to get the wheels to turn briefly but only in reverse. That was regardless of the switch position, forward or reverse. One position gave a faster rotation but still in reverse.
I have double checked the wiring and disconnected the motor to check it per the manual. It checks good. The last time I tried it I heard a hum but had no rotation. In checking the motor terminals I found 48 volts on all 4 terminals.
Having the key on or off made no difference so I disconnected the batteries for the night as I had other things to do. Sorry, I have done no searches and don’t know where to start on this tomorrow. Any advice is appreciated.

NoleFan4Ever · 09-20-2019, 10:59 PM

If you are getting 48v on all four (4) terminals (A1/2 & F1/2) then there is an internal short in your motor..... Did you do a continuity test?

pbearros · 09-21-2019, 07:45 AM

I did and it checked out good

NoleFan4Ever · 09-21-2019, 08:55 AM

Were all cables completely removed from the motor when you performed the test?

pbearros · 09-21-2019, 09:16 AM

all were off.
I just checked it again. motor was fine.
I checked the leads to the motor.
48 volts on green and orange
20 volts on white
5 volts on blue
these are the same with switch on or off and for/rev in any position.
I am thinking controller but I don't want to jump to quick on that.

greg-g · 09-21-2019, 10:35 AM

The controller sinks (negative) it does not source (positive) motor hooks direct to positive

NoleFan4Ever · 09-21-2019, 11:50 AM

If you probe just the A1/A2 wires and get the solenoid closure you should have ~5vdc. As you increase the pedal travel it should go to 48vdc.

pbearros · 09-22-2019, 07:16 AM

Quote:

Originally Posted by NoleFan4Ever

If you probe just the A1/A2 wires and get the solenoid closure you should have ~5vdc. As you increase the pedal travel it should go to 48vdc.

Do you check this with the wires connected to the motor or not

NoleFan4Ever · 09-22-2019, 08:08 AM

You can leave them connected as long as you are certain there are no motor shorts.

09-20-2019, 09:11 PM	#1
pbearros Not Yet Wild Join Date: May 2009 Location: Miss Posts: 34	48volts on all motor terminals I have been going over this 2004 precident all week. It had no batteries at all, I purchased a new set today and installed them. I discovered a couple of connections to the motor that were not according to the diagram and corrected them. I was able to get the wheels to turn briefly but only in reverse. That was regardless of the switch position, forward or reverse. One position gave a faster rotation but still in reverse. I have double checked the wiring and disconnected the motor to check it per the manual. It checks good. The last time I tried it I heard a hum but had no rotation. In checking the motor terminals I found 48 volts on all 4 terminals. Having the key on or off made no difference so I disconnected the batteries for the night as I had other things to do. Sorry, I have done no searches and don’t know where to start on this tomorrow. Any advice is appreciated.

09-20-2019, 10:59 PM	#2
NoleFan4Ever MOD of all BS! Join Date: Sep 2011 Location: Florida Posts: 17,477	Re: 48volts on all motor terminals If you are getting 48v on all four (4) terminals (A1/2 & F1/2) then there is an internal short in your motor..... Did you do a continuity test?

09-21-2019, 07:45 AM	#3
pbearros Not Yet Wild Join Date: May 2009 Location: Miss Posts: 34	Re: 48volts on all motor terminals I did and it checked out good

09-21-2019, 08:55 AM	#4
NoleFan4Ever MOD of all BS! Join Date: Sep 2011 Location: Florida Posts: 17,477	Re: 48volts on all motor terminals Were all cables completely removed from the motor when you performed the test?

09-21-2019, 09:16 AM	#5
pbearros Not Yet Wild Join Date: May 2009 Location: Miss Posts: 34	Re: 48volts on all motor terminals all were off. I just checked it again. motor was fine. I checked the leads to the motor. 48 volts on green and orange 20 volts on white 5 volts on blue these are the same with switch on or off and for/rev in any position. I am thinking controller but I don't want to jump to quick on that.

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09-21-2019, 10:35 AM	#6
greg-g Gone Wild Join Date: Aug 2011 Posts: 553	Re: 48volts on all motor terminals The controller sinks (negative) it does not source (positive) motor hooks direct to positive
greg-g Gone Wild Join Date: Aug 2011 Posts: 553

09-21-2019, 11:50 AM	#7
NoleFan4Ever MOD of all BS! Join Date: Sep 2011 Location: Florida Posts: 17,477	Re: 48volts on all motor terminals If you probe just the A1/A2 wires and get the solenoid closure you should have ~5vdc. As you increase the pedal travel it should go to 48vdc.

09-22-2019, 08:08 AM	#9
NoleFan4Ever MOD of all BS! Join Date: Sep 2011 Location: Florida Posts: 17,477	Re: 48volts on all motor terminals You can leave them connected as long as you are certain there are no motor shorts.

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