RXV motor brake

gornoman · 08-28-2018, 07:38 PM

Had an RXV with curious run/won't run condition. Immediately replaced the motor brake because of my history with these carts. Cart runs correctly now, so that's good. Inspected the old brake and cannot find a single thing wrong with it. Can still read printed numbers on the brake lining surface, like it's never been used at all. I mean it looks pristine, other than some corrosion on the outside of the housing. These darn things just quit working correctly after five years. What's the deal with that???

BobBoyce · 08-28-2018, 09:30 PM

Quote:

Originally Posted by gornoman

Had an RXV with curious run/won't run condition. Immediately replaced the motor brake because of my history with these carts. Cart runs correctly now, so that's good. Inspected the old brake and cannot find a single thing wrong with it. Can still read printed numbers on the brake lining surface, like it's never been used at all. I mean it looks pristine, other than some corrosion on the outside of the housing. These darn things just quit working correctly after five years. What's the deal with that???

The impedance of the coil that pulls in the brake changes over time from exposure to heat from the motor. It gets lower and lower over time, until it falls below the minimum impedance that will pass the powerup test. It starts getting intermittent as it gets on the very edge of passing test around 20 ohms, then fails solidly after it gets under 18 ohms.

cgtech · 08-29-2018, 01:27 AM

LOL, I love this guy, he knows this **** better than my season of it .

gornoman · 08-29-2018, 12:26 PM

Incredible! The unit I removed measured 19 Ohms.

FF Titus · 08-29-2018, 12:28 PM

Those E Brakes make good door stops in the service shop here. ;)

gornoman · 08-29-2018, 12:32 PM

Quote:

Originally Posted by cgtech

LOL, I love this guy, he knows this **** better than my season of it .

He sure does! Great resource!

08-28-2018, 07:38 PM	#1
gornoman Stay thirsty my friends! Join Date: Jan 2007 Location: Suburban Chicago Posts: 24,286	RXV motor brake Had an RXV with curious run/won't run condition. Immediately replaced the motor brake because of my history with these carts. Cart runs correctly now, so that's good. Inspected the old brake and cannot find a single thing wrong with it. Can still read printed numbers on the brake lining surface, like it's never been used at all. I mean it looks pristine, other than some corrosion on the outside of the housing. These darn things just quit working correctly after five years. What's the deal with that???

08-29-2018, 01:27 AM	#3
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: RXV motor brake LOL, I love this guy, he knows this **** better than my season of it .

08-29-2018, 12:26 PM	#4
gornoman Stay thirsty my friends! Join Date: Jan 2007 Location: Suburban Chicago Posts: 24,286	Re: RXV motor brake Incredible! The unit I removed measured 19 Ohms.

08-29-2018, 12:28 PM	#5
FF Titus Gone Wild Join Date: Jul 2011 Location: Rhode Island Posts: 489	Re: RXV motor brake Those E Brakes make good door stops in the service shop here. ;)

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