acceleration unsafe

woloszyk · 09-19-2011, 11:20 AM

My cart has a non programable NTX 300 controler, Along with a Heavy Duty selinod. the problem is the cart only goes top speed out of the gate, no matter light I touch the pedal. What do I need to replace to make the cart accelerate normal? Is this common?

The cart is a 93 ezgo electric.

fishb8 · 09-19-2011, 11:51 AM

Doesn't the '93 have a POTs? if so that would be my guess. check the POTs with ohm meter.

woloszyk · 09-19-2011, 12:12 PM

Can you explane POTs

fishb8 · 09-19-2011, 12:28 PM

potentiometer. I dont have a good picture of one but this is the best I can do for now

At the bottom of the picture in the middle. The thing with the 2 bolts on top is the solenoid. directly across from it is the POTs.

BLakeside · 09-19-2011, 01:31 PM

You wrote NTX 300 did you mean Alltrax NPX 300? The pot (potentiometer) is a variable resister connected to the go pedal, that tells the controller how much amperage to allow to the motor. The NPX controller can use 0 to 5K ohms or 5K to 0 ohms (IE 0 ohms at slow up to 5 ohms at pedal on the floor). The first thing to check is do you have the pot wires reversed (or wrong setting on controller). Check the Alltrex web site for wiring diags. Also double and triple Check Battery/controller/motor cables.

scottyb · 09-19-2011, 05:54 PM

IT is a mis match problem. Since the controller is non programmable the threottle input is set in production and the unit is clearly marked on the out side NPX ITS or 0-5k or 5k-0 .... How is your NPX marked?

Your cart is 0-5k, if the control is marked anything other than 0-5k throttle, then that is the problem . Lets clear this up before we go any further

woloszyk · 09-21-2011, 04:33 PM

0-5k is what it is, and I pulled the pots and it was reading very low all the way to 5.39 when pedal would be on the floor. any suggestions?

scottyb · 09-21-2011, 04:41 PM

The controller says 0-5k and the potentiometer reads 0-5k? Is that what you are saying?

Can you post a pic of the controller and the connections?

09-19-2011, 11:20 AM	#1
woloszyk Not Yet Wild Join Date: Sep 2011 Posts: 13	acceleration unsafe My cart has a non programable NTX 300 controler, Along with a Heavy Duty selinod. the problem is the cart only goes top speed out of the gate, no matter light I touch the pedal. What do I need to replace to make the cart accelerate normal? Is this common? The cart is a 93 ezgo electric.
woloszyk Not Yet Wild Join Date: Sep 2011 Posts: 13

09-19-2011, 11:51 AM	#2
fishb8 Gone Wild Join Date: Nov 2010 Location: Charleston, SC Posts: 539	Re: acceleration unsafe Doesn't the '93 have a POTs? if so that would be my guess. check the POTs with ohm meter.

09-19-2011, 12:12 PM	#3
woloszyk Not Yet Wild Join Date: Sep 2011 Posts: 13	Re: acceleration unsafe Can you explane POTs
woloszyk Not Yet Wild Join Date: Sep 2011 Posts: 13

09-19-2011, 12:28 PM	#4
fishb8 Gone Wild Join Date: Nov 2010 Location: Charleston, SC Posts: 539	Re: acceleration unsafe potentiometer. I dont have a good picture of one but this is the best I can do for now At the bottom of the picture in the middle. The thing with the 2 bolts on top is the solenoid. directly across from it is the POTs.

09-19-2011, 01:31 PM	#5
BLakeside Gone Wild Join Date: Aug 2010 Location: Lake Norman NC Posts: 163	Re: acceleration unsafe You wrote NTX 300 did you mean Alltrax NPX 300? The pot (potentiometer) is a variable resister connected to the go pedal, that tells the controller how much amperage to allow to the motor. The NPX controller can use 0 to 5K ohms or 5K to 0 ohms (IE 0 ohms at slow up to 5 ohms at pedal on the floor). The first thing to check is do you have the pot wires reversed (or wrong setting on controller). Check the Alltrex web site for wiring diags. Also double and triple Check Battery/controller/motor cables. Last edited by BLakeside; 09-19-2011 at 02:27 PM.. Reason: 5 ohms should have been 5k or 5000 ohms

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09-19-2011, 05:54 PM	#6
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: acceleration unsafe IT is a mis match problem. Since the controller is non programmable the threottle input is set in production and the unit is clearly marked on the out side NPX ITS or 0-5k or 5k-0 .... How is your NPX marked? Your cart is 0-5k, if the control is marked anything other than 0-5k throttle, then that is the problem . Lets clear this up before we go any further

09-21-2011, 04:33 PM	#7
woloszyk Not Yet Wild Join Date: Sep 2011 Posts: 13	Re: acceleration unsafe 0-5k is what it is, and I pulled the pots and it was reading very low all the way to 5.39 when pedal would be on the floor. any suggestions?
woloszyk Not Yet Wild Join Date: Sep 2011 Posts: 13

09-21-2011, 04:41 PM	#8
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: acceleration unsafe The controller says 0-5k and the potentiometer reads 0-5k? Is that what you are saying? Can you post a pic of the controller and the connections?

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