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Open Roads Forum  >  Tech Issues

 > Electric tongue Jack blows fuses

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midnightsadie

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Posted: 09/18/22 10:20am Link  |  Quote  |  Print  |  Notify Moderator

bgum I could use that jack. you,re just to far away.

bgum

South Louisiana

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Posted: 09/18/22 12:01pm Link  |  Quote  |  Print  |  Notify Moderator

midnightsadie wrote:

bgum I could use that jack. you,re just to far away.


It is very heavy and postage would be prohibited.

valhalla360

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Posted: 09/18/22 12:27pm Link  |  Quote  |  Print  |  Notify Moderator

bgum wrote:

The fix is easy. Just don't do it. Electric tongue jacks are unreliable. I have a new jack in the garage that was replaced by a manual crank type. The Electric all are subject to moisture intrusion in the switches.


Odd, never had one or been around one that failed. That's about 40yrs of experience...(my Dad suddenly upgraded about 40yrs ago once the last of us teenage boys graduated high school and he had to do the cranking).

And as long as you don't throw out the backup handle, it's not a big deal even if it does.

But as you say, it's an easy fix. Just pause for a couple seconds when reversing direction. Usually, I only reverse direction after doing something (like connecting the WDH bars or the latch on the hitch), so there's typically at least a few seconds of pause built into the process.


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ktmrfs

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Posted: 09/18/22 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

bgum wrote:

The fix is easy. Just don't do it. Electric tongue jacks are unreliable. I have a new jack in the garage that was replaced by a manual crank type. The Electric all are subject to moisture intrusion in the switches.


25 years of use of electric tongue jacks, probably 50-100 times/year, two trailers= 50 "trailer years of use" Electric tongue jack failures= Zip. Can they fail? yes, but I'd hardly put them in the "unreliable" category. And when I have 1500 lbs on the tongue, manual jack is NOT to my liking.


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Bobbo

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Posted: 09/18/22 07:36pm Link  |  Quote  |  Print  |  Notify Moderator

Goostoff wrote:

Dont think in all my years I ever saw a jack with a fuse. I just put an electric jack on my car trailer and the instruction had me wire directly to the battery. My landing gear on my 5th wheel has self resetting a circuit breaker in line but thats the most I ever saw

Mine has a fuse. The only thing that I know of that is not supposed to be fused are the breakaway brakes.


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jodeb720

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Posted: 09/18/22 10:58pm Link  |  Quote  |  Print  |  Notify Moderator

I'm of the mindset that the gearing on your new unit is lower than in the past - probably to save money. If the drive motor is smaller, and weaker, how do you still lift the weight? Gear ratio is lower.

so when you turn release the Up and immediately are going down, the motor may still be spinning and that will cause the fuse to blow (like others have said, wait for it to completely stop).

Personally, that would annoy the heck out of me, but as long as I understood the "why" i'd just accept it and go one.

Like others have said, you need a backup - and the manual crank is that backup.

And don't let others fool you - my manual crank died many a year ago on my TT when I had just pulled into Yosemite and was ready to disconnect. The connecting pin either fell out or vibrated loose and I couldn't crank up to disconnect.

Eventually, I made it work enough to disconnect - and jacked the trailer up and lowered down under the tongue using wood. Once I did that I spent a wonderful afternoon completely stripping down the manual jack, re-greasing it and reassembling it and it probably is still working to this day...

The point is everything can and will break - but you need a backup.

josh

Skibane

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Posted: 09/19/22 01:14am Link  |  Quote  |  Print  |  Notify Moderator

jodeb720 wrote:

Like others have said, you need a backup - and the manual crank is that backup.


You'd be using that crank a lot less after installing a self-resetting circuit breaker.

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