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Old 09-02-2020, 01:00 AM   #31
R&TBabich
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Default Re: Alltrax XCT install pics.

Quote:
Originally Posted by TahoeDawgZ71 View Post
.... There is no polarity of a solenoid. The polarity comes from the diode. ....
I think the magnetic break out solenoids have polarity.
Also, the polarity comes from the battery connections and is followed by the diode.
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Old 09-02-2020, 06:01 AM   #32
Sergio
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Default Re: Alltrax controller both diodes

His comments were in reference to the MZJ type solenoid he had in his post which does not have any built in polarity.

The Solenoid You have on your picture does not have magnetic blowouts, the + on the side is because there is a diode soldered from factory between the terminals.

That OEM Solenoid is the reason some early Club Car wiring diagrams did not show a diode on the solenoid which some folks erroneously interpreted as not being needed.

You should always have a diode when the Solenoid coil is being activated by an electronic device.

The Solenoids with the Magnetic Blowout like the SW180 in CartsUnlimited drawing will have the + on the Top near when of the big posts to indicate where the highest voltage potential cable is connected.

If not cabled correctly instead of "blowing" the arc out of the contact area when they open, the Solenoid will actually drive the arc inside which can cause premature damage of the contacts surface.
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Old 09-02-2020, 09:29 AM   #33
R&TBabich
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Default Re: Alltrax controller both diodes

Quote:
Originally Posted by Sergio View Post
His comments were in reference to the MZJ type solenoid he had in his post which does not have any built in polarity.

The Solenoid You have on your picture does not have magnetic blowouts, the + on the side is because there is a diode soldered from factory between the terminals. ....
It was just the way it was worded.
That little diode is hard to see.
After cleaning off the crud on my OEM solenoid there is a little diode on it.
So, like the magnetic blowout design it's not the solenoid contacts or the activation coil that have polarity.
Having a diode soldered on it or a magnetic blowout circuit determines the polarity of the assembly.
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Old 01-24-2021, 07:10 PM   #34
cajun000
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Default Re: Alltrax controller both diodes

Quote:
Originally Posted by R&TBabich View Post
It was just the way it was worded.
That little diode is hard to see.
After cleaning off the crud on my OEM solenoid there is a little diode on it.
So, like the magnetic blowout design it's not the solenoid contacts or the activation coil that have polarity.
Having a diode soldered on it or a magnetic blowout circuit determines the polarity of the assembly.
My pic is the 2017 Onward OEM solenoid. Similar to your pic, but not exactly. I cannot find a small diode between the two small terminals nor a "+" stamped into the solenoid. I am installing an Alltrax 48-400 contoller and need to know if I should install the diode included with the controller on the larger terminals after removing the resistor currently installed. Also, does this solenoid need another diode installed between the two smaller terminals or does this solenoid have an internal diode.
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Old 03-19-2021, 07:33 AM   #35
BigN8
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Default Re: Alltrax controller both diodes

I installed the 400 amp Alltrax controller a few months ago. Initially the cart ran fine. As time has gone on when I first start out in my cart it will run full speed then slow down to a speed slower than stock, then surge to a fast speed and slow again. Very erratic speed surges. But as I play golf and start and stop the cart will run normal with no surges. Almost like it has to "warm up" or something. Why is this happening ? I don't think I have a diode on the big contacts only the small ones. Does this sound like a diode problem?
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Old 07-25-2021, 08:48 AM   #36
rulybanuelos
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Default Re: Alltrax controller both diodes

Quote:
Originally Posted by cajun000 View Post
My pic is the 2017 Onward OEM solenoid. Similar to your pic, but not exactly. I cannot find a small diode between the two small terminals nor a "+" stamped into the solenoid. I am installing an Alltrax 48-400 contoller and need to know if I should install the diode included with the controller on the larger terminals after removing the resistor currently installed. Also, does this solenoid need another diode installed between the two smaller terminals or does this solenoid have an internal diode.
I was wondering this same thing with a 2019 onward. Do we not need a smaller diode to connect the smaller posts?
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Old 07-27-2021, 04:43 PM   #37
Fairtax4me
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Default Re: Alltrax controller both diodes

For the Alltrax XCT, You need a diode on both the small terminals AND the Large posts on the solenoid. Both should be included with your kit. Read the Installation instructions and they explain where and how to connect both diodes. They are BOTH Necessary for the XCT controller.
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