TMS PJ3500 3500-Pound 12-volt Electric Power Tongue Jack RV Utility Boat Trailer Camper

This jack is being marketed under many names. I bought one from this vendor July 2011 and finally got around to installing it at the end of June 2012.

It is junk, mine failed after less than a month of use.

It is interesting that this vendor has added a sticker to the jack claiming it has a 3500 pound capacity while most others are saying it has a 3000# rating. Otherwise the units are identical. As other reviewers have noted this unit is really only suitable for raising a tongue with a few hundred #s of load. Since trailer couplers often hangup on the ball until part of the tow vehicle weight is lifted even a small trailer is likely to cause this jack to fail.

Brush type DC motors(I am an electrical engineer) are moderately reliable when operated within their load ratings, but when overloaded brushes quickly fail. When I tap the motor housing while holding the switch on and use the crank to rotate the motor it intermittently starts. This tells me that this motor has suffered brush failure and that the motor is not suitable the the load it is experiencing. The motor is small,just 3 1/4 " diameter and 4 3/4"long, only slightly bigger than auto blower motors. It is totally enclosed, necessary for its exposure to the elements but that also means it will have difficulty dissipating heat.

Also, the jack does not use a hex head for manual operation and the handle which comes with it will not clear many V nosed trailers. So when the motor fails you have to crank it half a turn at a time. If it used a hex head or perhaps a 1/2" socket drive you could use a variety of ratchet handles.

So do yourself a favor and buy a better unit. This jack is poorly engineered and vastly overrated.

I may do a tear down and follow up with details of internal construction.

t just love this electric jack it works good has a very good lift it could be faster but it is ok

Buy TMS PJ3500 3500-Pound 12-volt Electric Power Tongue Jack RV Utility Boat Trailer Camper Now

Part was new and as described. I am pleased. Great price cheepest on amizon and ebay

Way to go. Thanks

Read Best Reviews of TMS PJ3500 3500-Pound 12-volt Electric Power Tongue Jack RV Utility Boat Trailer Camper Here

Was exactly what I needed. Cheaper here than any other place I looked at. Works great! Def will recommend it.

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I have not used the jack except for just raising and lowering it for test on my camper, but it worked like I expected. At first it would not work until I discovered that the paint on it and the toungue was preventing it from grounding. I removed the flat washer from one of the bolts and tightened it to break the paint seal and it worked as expected. If it doesn work after awhile, I will post again. I like the built-in lights too.