Curtis 1204-402 Controller Conversion Problems

[terrypr]

Hey guys, my 36V v-glide resistor cart kept melting v-glides (yes, I have kids), so I decided to make the jump to a controller. I bought a Curtis 1204-402 off ebay along with a new solenoid and 0-5k pot. Started the install and noticed the A1 terminal on the motor was stripped out, the A2 was in bad shape as well. I took the motor apart and replaced both the A1 & A2 studs. Put everything back together with new cables and the cart would barely move on level ground and wouldnt even begin to climb a hill. I thought it was the controller, so I sent it out to ARS and they rebuilt it. I reinstalled it, but still the same problem. If I measure the voltage across the B+ and M terminals, it only shows 3.5 V with the throttle fully applied. If I jack the rear wheels off the ground and repeat the test, the motor will spin up and the voltage measures 30 V or higher. Any ideas?

[Roxyflash]

Sounds like the motor was the culprit melting the v glide drawing too many amps.Now you replaced acouple studs could have damaged the motor.if the b+ had good voltage on a load the M has low voltage and the controller was rebuilt makes me think the motor is drawing too amps.i would try to get a amp draw off the m wire eith a clamp on amp meter see whats it drawing.i have a used motor and rear end for the cart sell it cheap

[terrypr]

Thanks for the reply Roxyflash, I'll try and get an amp reading and post the results. I may be interested in your motor, how much are you asking for it?

[Roxyflash]

100

[jjance]

It could also be your batteries. Put your meter on the battery pack and see how much the voltage drops when you apply the throttle. With wheels on the ground.

[terrypr]

How much to ship to 35951?

[Roxyflash]

35 for shipping

[terrypr]

PM sent

[Roxyflash]

Sent you a reply