half way down on the pedal the motor dies

[iaefebs]

Originally Posted by odins701

ok, my meter is digital so seeing a swing on the pot is difficult. i did this a few times to check for accuracy and i got a swing from 0 to 7.33K and right after 4K it dropped to 0 and then back up and continued the swing up to 7.33k. it was a quick drop too. was like 4.0, 0, 4.2, 4.6, ect.

The pot is probably bad. The controller will respond by shutting down if it sees resistance over 6000k. The reason reverse runs good is because the there is another set of wires that run from the pot to the FNR. When reverse is selected the resistance (ohm) is cut in half. If you move your shifter to reverse with with the ohm meter still connected to the wires you will probably see readings peak at 3.7k.

[odins701]

update, after charging for a wile and with the charger hooked up, i've got 44.6v, check the selaniod has a 3v drop (good). still cuts off at half way and at 40.2v (charger hooked up). so if its cutting out at 40v (charger on) and at 27v (charger off) then probably not the controller at faught here, or at least not cutting of due to low voltage.

the open that i read on the pot between 4.0k and 4.2k, could this be the culprit? wouldn't it just pick right up once it hits 4.2k and up?

[odins701]

Originally Posted by iaefebs

The pot is probably bad. The controller will respond by shutting down if it sees resistance over 6000k. The reason reverse runs good is because the there is another set of wires that run from the pot to the FNR. When reverse is selected the resistance (ohm) is cut in half. If you move your shifter to reverse with with the ohm meter still connected to the wires you will probably see readings peak at 3.7k.

gotcha
i'll check that. that makes more sence to me also. that controller cutting out due to resistance instead of voltage.

[iaefebs]

The fact that you see the fluctuations when depressing the pedal is not good. The pot should give a smooth rise from 0 to 5000k (4500 - 5500). I don't believe your cart is cutting out because of the 0 reading you get temporarily when pushing down on the pedal. It is shutting off because it sees more then 6000.

[odins701]

Originally Posted by iaefebs

The fact that you see the fluctuations when depressing the pedal is not good. The pot should give a smooth rise from 0 to 5000k (4500 - 5500). I don't believe your cart is cutting out because of the 0 reading you get temporarily when pushing down on the pedal. It is shutting off because it sees more then 6000.

Thanks. I ordered a new pot. when it comes in i'll adjust it and linkage to stop at 5500.

[iaefebs]

Originally Posted by odins701

Thanks. I ordered a new pot. when it comes in i'll adjust it and linkage to stop at 5500.

If you get the correct pot then you really shouldn't have to adjust the linkage to stop at whatever the max resistance is. The pot should top out at 5000k plus or minus 10% (4500 to 5500). The place to start is at the 0 ohm position. With the hill brake applied you should see 0 ohm till the hill brake kicks off and then a nice steady climb till it reaches max output. The pedal should be real close to full stroke.

[odins701]

Originally Posted by iaefebs

If you get the correct pot then you really shouldn't have to adjust the linkage to stop at whatever the max resistance is. The pot should top out at 5000k plus or minus 10% (4500 to 5500). The place to start is at the 0 ohm position. With the hill brake applied you should see 0 ohm till the hill brake kicks off and then a nice steady climb till it reaches max output. The pedal should be real close to full stroke.

fingers crossed on the right one being order!!

[iaefebs]

I just took a look and the pot # is mfg #98191

[odins701]

Originally Posted by iaefebs

I just took a look and the pot # is mfg #98191

Thanks!! i called the store up and that is what they ordered!!
now that all that is worked out.......
what to do...
chop, channel, and section...
miniture model a body.....
now that its almost working properlly, feelings of demo and fab work are brewing

[odins701]

Going off topic now but, are there places to purches neet little bolt on bodies?