Can an Ultra-Fab Electric Trailer Jack that has Been Over Extended be Repaired

Question

Question:

While trying to level my camper on a real unleveled spot, I raised the jack above the red line on shaft. Can it be repaired. I removed 4 bolts that hold the shaft to the electric motor housing, but it will not come apart. Ultra 3500 tongue jack

asked by: Allen

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Expert Reply:

The way that the electric trailer jack # UF38-944017 works is using an ACME screw and a nut. The nut is fixed and the screw goes up and down in the nut. At the end of the screw the metal is twisted, smashed, or otherwise purposely cross threaded to prevent the screw from just coming out and the load dropping.

If you try to raise a jack with this type of design too far it damages that nut and the screw. Those parts cannot be replaced. You will need to replace the whole jack.

This is not necessarily a bad thing because there is a type of jack where this will not happen. I highly recommend the Stromberg Carlson # SC63VR which has a clutch that automatically prevents damage from over extension or retraction. Additionally it has 4500 pounds of lifting capacity. Should you find youself on a slopping site again, this jack also has a drop-foot capable of adding 5" more extention.

expert reply by: Michael H

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Answer 1

We do offer better jacks that have built-in protection from over-extension. I think the best value for an A-frame tongue jack is the Stromberg Carlson #SC63VR which is rated for 4500 pounds of tongue weight. This is 1000 pounds more than other…

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Answer 2

From the outside of the jack tube of the #UF38-944017 to the furthest point out on the jack motor housing it measures 3-7/8 inches.

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Answer 3

I would be happy to help you. Based on the information you have given me I am going to give you the height of the Stromberg Carlson Electric Trailer Jack Item #SC63VR you referenced. This jack sits 21 1/4" above your trailer's frame. You…

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Answer 4

To replace your FIC 3500 electric jack, I recommend the Ultra-Fab Electric A-Frame Jack item #UF38-944017. This jack extends 6" in 25.3 seconds with 1,000 lbs of tongue weight. It has an easy bolt-on or weld-on installation for A-frame trailers,…

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Answer 5

Hello Wayne. A 3,500 lb jack is going to be more than enough for your 5,000 lb trailer. The 3,500 lb rating is for the tongue weight of the trailer and not the total weight of the trailer. Your tongue weight should be more like 500-700 lbs max so you…

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Answer 6

Electric A-frame trailer jacks often have the same bolt pattern, yes. Just keep in mind that a higher-capacity jack doesn't necessarily mean more speed, it's all about the jack itself. For example, the 3,500 lb Ultra-Fab Electric A-Frame Jack…

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Answer 7

The Stromberg Carlson Electric Trailer Jack #SC63VR you were looking at has mounting holes that are 3" apart on center. This is the standard mounting hole pattern used by virtually all a-frame trailer jacks, so it will be an exact replacement…

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Answer 8

Absolutely! From the top of the Stromberg Carlson Electric Trailer Jack #SC63VR to the mounting flange is 21-1/4" and from the front of the jack to the tube is 5-5/8" as shown in the included diagram. I included a video of the #SC63VR for…

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Answer 9

I confirmed with the manufacturer Lippert Components that the Drop Leg #LC405217 is rated for 5000 lbs just like the jack it goes to the Lippert Electric Trailer Jack with Footplate #LC285318.

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Answer 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 11

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 12

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Can an Ultra-Fab Electric Trailer Jack that has Been Over Extended be Repaired

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