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-   -   Brake locked up but getting voltage (https://www.buggiesgonewild.com/showthread.php?t=186211)

cdzo72 08-16-2022 05:48 PM

Brake locked up but getting voltage
 
Good afternoon to everyone!

Ok... Started smelling brakes, so I did some testing and came up with that I needed a new brake. Ok, put the new brake on and no go, still locked up...

Switch in Tow position, key in N position...

If I measure voltage at the brake I get the same voltage that comes from my batteries, but brake is locked, no movement.

But, if I jump wires directly from the batteries to the brake, it releases fully...

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Volt_Ampere 08-16-2022 06:39 PM

Re: Brake locked up but getting voltage
 
How are you measuring the voltage? Measure across the two pins. If each has the same voltage relative to battery negative, then the brake itself has no voltage across it.

ojo 08-17-2022 04:16 AM

Re: Brake locked up but getting voltage
 
2 Attachment(s)
As volt says, measureing between the two pins at the brake. Negative for the brake is coming from the controller. If any fault detected during the self test, it won't release. Danaher or Curtis cart?

cdzo72 08-17-2022 10:46 AM

Re: Brake locked up but getting voltage
 
Ok, measured several ways.

Switch in Tow mode, key in N position, brake is removed from motor and unplugged

Test across both pins in connector, same voltage as batteries.

Negative lead connected to battery -, positive lead on tester connected to grey wire pin, same voltage as batteries.

Positive lead connected to battery, negative lead connected to black w/white stripe, same voltage as batteries.

Am I testing correctly in all 3 scenarios?

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cdzo72 08-17-2022 10:47 AM

Re: Brake locked up but getting voltage
 
Quote:

Originally Posted by ojo (Post 1904631)
As volt says, measureing between the two pins at the brake. Negative for the brake is coming from the controller. If any fault detected during the self test, it won't release. Danaher or Curtis cart?

I think it's a Danaher cart, has the grey ACO controller

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ojo 08-17-2022 11:58 AM

Re: Brake locked up but getting voltage
 
Follow the mechanical brake test in the Danaher Troubleshooting Guide, page 32-33.

cdzo72 08-23-2022 01:11 PM

Re: Brake locked up but getting voltage
 
Quote:

Originally Posted by ojo (Post 1904700)
Follow the mechanical brake test in the Danaher Troubleshooting Guide, page 32-33.

Found a scanner, have done every test we could find... Brakes are still locked up, have changed everything

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ojo 08-24-2022 05:50 AM

Re: Brake locked up but getting voltage
 
As i undestand, you got pack voltage at the grey/ black wires of the ebrake. According to the Troubleshooting Guide, only 12 - 18v should be obseved ( p. 33, # 5 ). Attache the ebrake for these test, as the controller can " see " the brake due to it's resistance. Check the pins of the connector, some other's reported here, a bad connection could be the issue.


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