Something is slipping

[ROOKEE]

Originally Posted by TahoeDawgZ71

Jerking works.... that's what I was describing. It's a sign of low voltage. That's why it doesn't happen when you slowly increase throttle. A sudden drop of voltage such as when you push the pedal to the floor is too much for the battery pack to handle and it causes the jerking you're describing. Take a voltage reading of the entire battery pack with a multimeter.

Ok, tested batteries with voltage gauge, entire battery pack. I only got a 49.3 reading. That isn't good for a 48volt cart is it?
Could bad batteries be my problem? The date on them is 06/2011

[Budule]

Originally Posted by ROOKEE

Ok, tested batteries with voltage gauge, entire battery pack. I only got a 49.3 reading. That isn't good for a 48volt cart is it?
Could bad batteries be my problem? The date on them is 06/2011

that's a little less than 70% so they need charged......what does the voltage drop to under load ? Try leaving volt meter hooked up so you can see it while driving , then try the slow take off and then the fast one to see if its dropping out on you......also may want to test batteries individually to see if all are low or maybe just one is the culprit.....

[TahoeDawgZ71]

Budule is correct, also check the wires and make sure they're in good shape with a solid connection.

[ROOKEE]

Originally Posted by Budule

that's a little less than 70% so they need charged......what does the voltage drop to under load ? Try leaving volt meter hooked up so you can see it while driving , then try the slow take off and then the fast one to see if its dropping out on you......also may want to test batteries individually to see if all are low or maybe just one is the culprit.....

This is really got me confused when you say they need charged because the charger has been hooked up and according to the charger it is at zero on the gauge and has clicked off.
Batteries tested individually was reading 8.3 volts.
Haven't done the load test yet, will try that tomorrow

[Budule]

how old are they?....and you said the pack was 49.3 but if each battery is 8.3 then that would be 49.8 , which is a little better, 77% maybe.... they may be close to needing replaced ....but if they hold under load then you cold still use them I would think.....load test will tell the tale....

[ROOKEE]

Originally Posted by Budule

how old are they?....and you said the pack was 49.3 but if each battery is 8.3 then that would be 49.8 , which is a little better, 77% maybe.... they may be close to needing replaced ....but if they hold under load then you cold still use them I would think.....load test will tell the tale....

Ok, here is what I got. Load test read 48.0 volts.
Off load was 49.3
Earlier someone told me to jack cart up and hold one tire,
I did that and the other tire spun.
Swap to the other side and held tire and the other one
Turned. I'm not sure what that tells me as I stated earlier.
But trying to give you all the test I was told to do.
Thanks for all of your help.

[rib33024]

Well that's not exactly what he said, ------ there is nothing in the rear end that can be slipping, it's all gear to gear

Originally Posted by caokgafamily

Rear end gears? Maybe secure cart jack up rear end get a buddy to hold tire on one end you on the other and turn them by hand, listen and describe for us what it does? Can you take a video of this and post?
Steve

Originally Posted by ROOKEE

Ok, here is what I got. Load test read 48.0 volts.
Off load was 49.3
Earlier someone told me to jack cart up and hold one tire,
I did that and the other tire spun.
Swap to the other side and held tire and the other one
Turned. I'm not sure what that tells me as I stated earlier.
But trying to give you all the test I was told to do.
Thanks for all of your help.

[scooterman]

I would like to test that motor, I would take it off and look at it to see if anything is obvious. Burnt rubber smell could be a hint of the issue. I'd investigate at the source of the sound first, can't hurt, just labor.

JMO I'm not a cart expert, just my thought.

[Budule]

Originally Posted by ROOKEE

Ok, here is what I got. Load test read 48.0 volts.
Off load was 49.3
Earlier someone told me to jack cart up and hold one tire,
I did that and the other tire spun.
Swap to the other side and held tire and the other one
Turned. I'm not sure what that tells me as I stated earlier.
But trying to give you all the test I was told to do.
Thanks for all of your help.

just wondering how exactly did you do the load test?

[ROOKEE]

Originally Posted by Budule

just wondering how exactly did you do the load test?

Quote:
Originally Posted by Budule
that's a little less than 70% so they need charged......what does the voltage drop to under load ? Try leaving volt meter hooked up so you can see it while driving , then try the slow take off and then the fast one to see if its dropping out on you......also may want to test batteries individually to see if all are low or maybe just one is the culprit.....


I left the volt meter hooked up and drove it.
That where I got the load test from.