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Old 11-02-2012, 08:38 AM   #1
rollsteam
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Default Motor testing

I have a 2002 txt 36v series motor at work and I need to test the motor without the controller to see witch one is bad. Got any advise!
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Old 11-02-2012, 10:19 AM   #2
Gonkulor
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Default Re: Motor testing

Ha, here we are again. You need to have the center shaft supported if you want to spin it. Only other options are to Ohm out the individual coils. Johnnie please help here. This is over my head.
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Old 11-02-2012, 10:50 AM   #3
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Default Re: Motor testing

The motor does not have a front bearing, so don't try to spin test it unless it is mounted to the differential.
Also, even if mounted, don't use more than 12V.

Mark all four cables so you get them back on the same terminals.
Use two wrenches to remove cables. Second wrench goes on the lower nut to keep the stud from turning.

Jack rear wheels of cart off ground and put cart on jack stands.
Jumper A1 to S1
Connect jumper cable from A2 to positive post on 12V battery.
Momentarily touch jumper cable from S2 to negative post on 12V battery.


-----------
However, it is easier and less dangerous to check the controller.

Connect a DVM between the B- and M- terminals on controller.
Key ON F/R in either F or R
Press Throttle Pedal until solenoid clicks.
If solenoid doesn't click, we need to troubleshoot the solenoid activation circuit before proceeding.

If it does click, the voltage between B- and M- should be full battery pack voltage. (Pack voltage should be above 37.5V for troubleshooting)

If you have the full pack voltage there, slowly press throttle to floor.
Voltage should smoothly decrease to Zero.

If not, check ITS (Throttle) input to controller.
If it is good, controller is bad.
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Old 11-02-2012, 10:52 AM   #4
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Default Re: Motor testing

I still have it attached to the rear end! We are going to use the sticky above to check the controller this afternoon as an easy Friday end of day type thing! I have a fleet of 20 golf carts here at work and need to know before just buying parts to keep my job lol. Well make that 19 somebody deplod the air bags on one yesterday I'll see if I can post pictures its sad but I have to total it out with the broke frame!
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Old 11-02-2012, 10:57 AM   #5
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Default Re: Motor testing

Quote:
Originally Posted by rollsteam View Post
I still have it attached to the rear end! We are going to use the sticky above to check the controller this afternoon as an easy Friday end of day type thing! I have a fleet of 20 golf carts here at work and need to know before just buying parts to keep my job lol. Well make that 19 somebody deplod the air bags on one yesterday I'll see if I can post pictures its sad but I have to total it out with the broke frame!
The good news is that you got some spare parts.
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Old 11-02-2012, 10:59 AM   #6
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Default Re: Motor testing

Here you go!
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Old 11-02-2012, 11:04 AM   #7
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Default Re: Motor testing

You are the man Johnnieb! Thanks everyone I'll let you know what happens!
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Old 11-02-2012, 11:27 AM   #8
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Default Re: Motor testing

It was only a matter of time before the guru stepped in. He gives me that warm fuzzy feeling inside when he speaks.
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Old 11-02-2012, 01:30 PM   #9
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Default Re: Motor testing

Quote:
Originally Posted by Gonkulor View Post
It was only a matter of time before the guru stepped in. He gives me that warm fuzzy feeling inside when he speaks.
It takes me a minute and I have to read his post a couple of times because I'm more of simple redneck with some education, but he has helped me more than he knows! lol!
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Old 11-02-2012, 01:37 PM   #10
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Default Re: Motor testing

After two hours of work! The one in the back ground is the one with no go problems!
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