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Converter and jacks

converter jacks

6 replies to this topic

#1 OFFLINE   roadtrip

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Posted 29 July 2013 - 02:21 PM

Started having a problem with the Happijacs. If I run all four or just the front two, they seem to bog down under a load and run out of power causing the controller to be reset. It happens whether I'm using DC or shore power as well as with the truck running and not. I got new motors in the spring because I thought they were just getting old (9 years). I have greased the screws and checked the motors and everything is in good condition. They work fine with the hand crank.

 

Wondering if the issue might be with the Parallax 6300 converter. Going to have my neighbor help me learn to use my voltmeter so I can get some numbers. Any thoughts (other than I'm an idiot, which I may very well be) are appreciated. Thanks.

 

Dennis



#2 OFFLINE   Bedlam

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Posted 29 July 2013 - 03:13 PM

Poor electrical connections to the jacks whether corroded or loose can also cause this condition.

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#3 OFFLINE   atchafalaya_man

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Posted 29 July 2013 - 06:13 PM

Temporarily put another known good, fully charged battery in it and see if it continues to operate the same.   Just borrow one from another vehicle for the test.



#4 OFFLINE   Tillerman

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Posted 30 July 2013 - 07:12 AM

The controller does automatically time out after a couple of minutes.  Needs to be either stopped to reset the timer, or just reset and start again. 

 

However, if you hear binding you should make sure your camper is level and all four jack feet are making good contact with the ground.  Often when lifting one rear one will come off the ground so I either lower the opposite side until the one in air makes ground contact or just stop and drive down the one in the air.

 

I have never found it's just perfect, always needs many corrections to get the rig up and down, but it sure beats hand jacking.



#5 OFFLINE   Rusty Bridges

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Posted 31 July 2013 - 07:45 AM

Temporarily put another known good, fully charged battery in it and see if it continues to operate the same.   Just borrow one from another vehicle for the test.

 

Very good point, even hooked to shore power a bad battery could adversly affect your jacks. Try a known good battery first.

 

Russ



#6 OFFLINE   Rick1985

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Posted 01 August 2013 - 07:30 AM

Check all of ypur ground connections. A bad ground connection will lower voltage which will raise the amperage as the load applies. Not good for any of the electronics. Plus when you get off the button there could be a spike through the whole camper.



#7 OFFLINE   wirenut

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Posted 02 August 2013 - 07:52 AM

I also suspect your battery is getting quite weak.







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