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Unread 03-04-2012, 09:24 PM   #11
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Default Re: No throttle - New Alltrax, solenoid, cables

Press the Throttle all the way down, does the light on the Alltrax controller change at all? If it simply stays green and there is zero change, the the MCOR is bad. Even thought the MCOR microswitch may be good the throttle side may not be. I have seen this before.

If the Alltrax light does change and goes to an orange color, (red and Green) at full throttle then you have a different problem.
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Unread 03-04-2012, 10:00 PM   #12
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Default Re: No throttle - New Alltrax, solenoid, cables

Unfortunately you took it upon yourself to reverse the diode. My advice was to check it with a DMM to see which side was + and - and remove it for a test if you wanted...Never did I say reverse it. Now the solenoid will not activate? I suspect something has popped. I'm sorry if I didn't make myself clear. I thought I had with the diagram showing the proper polarity and all? Test your micro switches for continuity..
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Unread 03-04-2012, 10:21 PM   #13
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Default Re: No throttle - New Alltrax, solenoid, cables

Quote:
Originally Posted by scottginfla View Post
Try putting switch to tow, key off. and plug charger in for a few, then unplug charger and put in run and try it.

You should have 48 volts on the side of solenoid coming from battery pack at all times while not running, once peddle is depressed you will have it on both big posts
I've been putting it on the charger and removing the charger. No luck. Yes the side from the battery always has 48VDC going to it.
Quote:
Originally Posted by ForBruce View Post
i have the exact same set up... and i don't see in your photo the "PRECHARGE" resistor across the heavy solenoid terminals.
the right terminal shows a heavy wire and a yellow #10 wire but the right side only shows one heavy.....
The resistor is there, it's mounted behind the bump on the solenoid, hard to see, but it's there.
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Unread 03-04-2012, 10:24 PM   #14
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Default Re: No throttle - New Alltrax, solenoid, cables

Quote:
Originally Posted by cheapjeep2 View Post
Press the Throttle all the way down, does the light on the Alltrax controller change at all? If it simply stays green and there is zero change, the the MCOR is bad. Even thought the MCOR microswitch may be good the throttle side may not be. I have seen this before.

If the Alltrax light does change and goes to an orange color, (red and Green) at full throttle then you have a different problem.
Light does not change....stays green. Last night I read something about testing the MCOR, I'll see if I can find that thread again and see if I can test it.
Quote:
Originally Posted by scottyb View Post
Unfortunately you took it upon yourself to reverse the diode. My advice was to check it with a DMM to see which side was + and - and remove it for a test if you wanted...Never did I say reverse it. Now the solenoid will not activate? I suspect something has popped. I'm sorry if I didn't make myself clear. I thought I had with the diagram showing the proper polarity and all? Test your micro switches for continuity..
Uh oh.... this sounds like a $100 lesson Is there any way to test the solenoid to see if it's fried?
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Unread 03-05-2012, 08:46 AM   #15
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Default Re: No throttle - New Alltrax, solenoid, cables

micor testing procedure.....see photos
Attached Images
File Type: jpg micortest1.jpg (81.9 KB, 9 views)
File Type: jpg micortest2.jpg (159.0 KB, 10 views)
File Type: jpg micortest3.jpg (87.7 KB, 7 views)
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Unread 03-05-2012, 09:14 AM   #16
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Default Re: No throttle - New Alltrax, solenoid, cables

Quote:
Originally Posted by ForBruce View Post
micor testing procedure.....see photos

I seriously doubt that flipping the diode would have caused you any problems, as I have installed them wrong before and never had problems after correcting it. The fact that now the solenoid does not activate at all, could be yet another indication of the MCOR failing. Follow the procedures and rule MCOR out or as the culprit.
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Unread 03-05-2012, 09:26 AM   #17
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Default Re: No throttle - New Alltrax, solenoid, cables

Quote:
Originally Posted by ForBruce View Post
micor testing procedure.....see photos
Quote:
Originally Posted by cheapjeep2 View Post
I seriously doubt that flipping the diode would have caused you any problems, as I have installed them wrong before and never had problems after correcting it. The fact that now the solenoid does not activate at all, could be yet another indication of the MCOR failing. Follow the procedures and rule MCOR out or as the culprit.
Thanks guys! I'll test the MCOR this afternoon. I'm baffled by this one as everything else seems to be wired properly.
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Unread 03-05-2012, 05:50 PM   #18
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Default Re: No throttle - New Alltrax, solenoid, cables

It's looking like the new controller is bad. Metered the MCOR and it checked out fine. I removed the Alltrax and re-installed my Curtis and everything ran fine, including the solenoid.
I have a call in to Alltrax tech support to see if there is something obvious in the programming I'm missing, but on first brush it doesn't look like it.
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Unread 03-05-2012, 07:19 PM   #19
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Default Re: No throttle - New Alltrax, solenoid, cables

OK, So after reading this thread for a while, I had to go check my setup, which is pretty much identical. As I suspected, I have no diode! I will be posting a new thread to cover this, but thought I'd provide that tidbit here too.
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Unread 03-05-2012, 09:03 PM   #20
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Default Re: No throttle - New Alltrax, solenoid, cables

collapsing maganetic fields (solenoid shutting off ) will produce a voltage in a coil (same way a generator works )

This voltage can back feed a VOLTAGE SPIKE into the controller and "TOAST" it.

This is the reason the diode is used....
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