RXV with braking issues

MadFish · 07-29-2015, 09:48 AM

I'm a forklift technician and this RXV has me confused.

If you are driving along on a flat road the cart will activate the brakes on its own. The brake isnt locking up, but it's acting like I stepped on the brake pedal. I've tested the brake and throttle switches, both ohm out ok. The brake coil ohms out good. The solenoid tests good. The wiring ohms good. It's just acting like the brakes are being requested while your driving without touching the brake pedal. Anyone have any ideas?

dougs_huntingcart · 07-29-2015, 10:26 AM

If the cart is just is gently braking, then it's normal. Part of the regenerating process. If the braking is like your hitting the brake hard to stop then you have another issue.

MadFish · 07-29-2015, 10:40 AM

Yeah, it's like your hitting the brake pedal hard.

MadFish · 07-29-2015, 11:06 AM

I've load tested the batteries too and they all test good

cgtech · 07-29-2015, 11:30 AM

Motor brake is likely failing. Or could be set to "hill terrain" which has lots of regen braking (heavy braking is a subjective term).

MadFish · 07-30-2015, 07:52 AM

Question. Does the cart brake if the drive motor encoder is failing/bad? I'm guessing if the motor controller senses the drive motor spinning to fast that it will activate the brakes to slow it down. Am I right or no?

07-29-2015, 09:48 AM	#1
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4	RXV with braking issues I'm a forklift technician and this RXV has me confused. If you are driving along on a flat road the cart will activate the brakes on its own. The brake isnt locking up, but it's acting like I stepped on the brake pedal. I've tested the brake and throttle switches, both ohm out ok. The brake coil ohms out good. The solenoid tests good. The wiring ohms good. It's just acting like the brakes are being requested while your driving without touching the brake pedal. Anyone have any ideas?
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4

07-29-2015, 10:26 AM	#2
dougs_huntingcart Gone Wild Join Date: Oct 2012 Location: Canyon Lake, TX Posts: 628	Re: RXV with braking issues If the cart is just is gently braking, then it's normal. Part of the regenerating process. If the braking is like your hitting the brake hard to stop then you have another issue.

07-29-2015, 10:40 AM	#3
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4	Re: RXV with braking issues Yeah, it's like your hitting the brake pedal hard.
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4

07-29-2015, 11:06 AM	#4
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4	Re: RXV with braking issues I've load tested the batteries too and they all test good
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4

07-29-2015, 11:30 AM	#5
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: RXV with braking issues Motor brake is likely failing. Or could be set to "hill terrain" which has lots of regen braking (heavy braking is a subjective term).

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07-30-2015, 07:52 AM	#6
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4	Re: RXV with braking issues Question. Does the cart brake if the drive motor encoder is failing/bad? I'm guessing if the motor controller senses the drive motor spinning to fast that it will activate the brakes to slow it down. Am I right or no?
MadFish Not Yet Wild Join Date: Jul 2015 Posts: 4

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