What Are The Gear Ratios Of The Square 2-Speed Jack w/ Crank TJD2SP-12000SP-F

Question

Question:

How much faster is high speed Item # TJD2SP-12000SP-F than a standard jack of the same capacity. or revolutions per inch of lift for each would do.

asked by: Art N

0

Expert Reply:

I reached to RAM who makes the Square 2-Speed Jack w/ Crank # TJD2SP-12000SP-F you referenced, and confirmed that the high gear ratio is 6.43 handle revolutions per inch of travel, and the low gear ratio is 22.86 handle revolutions per inch of travel.

The high gear will be roughly 3.5x faster than a standard single speed jack with the same 10000lb lift capacity and 12000lb support capacity.

expert reply by: Samuel C

0

Answer 1

I do have an option for you but you can't install the Replacement Gearbox for etrailer and Ram 2-Speed Square Jacks part #TJD2SP-12900-GBX on a singe speed jack, the hole location for the cross gear shafts coming out of the jacks are different on…

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Answer 2

Trailer or automotive wheels can have a positive or negative offset. The offset refers to the distance between the mounting surface of the wheel that touches the hub and the center line of the wheel, as shown in the diagram I have edited for you. A…

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Answer 3

Yes, both special trailer (ST) and light truck (LT) tires can be used on a 5th wheel trailer. They are actually the only two types of tires rated for this use. The reason for this is that tires on a trailer will be subjected to much harsher…

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Answer 4

See the picture to the right for a wiring diagram of seven-way vehicle end trailer connector. If you click on it you can enlarge it. I have also included a trailer wiring FAQ page for you to check out.

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Answer 5

Yes, in order to use the Square 2-Speed Jack w/ Crank part #TJD2SP-12000SP-F in tandem you would need to obtain the correct follow leg which is the Square Direct Weld Jack part #TJD-12000SP-F2. The handle for this follow leg can be discarded as you…

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Answer 6

Good news! I was able to get a exploded diagram as well as a set of instructions on how to replace the rod and gears #TJD-12000-RODNUT in the #12000 Series Ram Jacks made after 2012. I have attached them to this page for your convenience. Basically,…

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Answer 7

We do in fact have the replacement gearbox you need for the 10,000 lb Square 2-Speed Jack #TJD2SP-12000SP-F. The part you need is the Replacement Gearbox for etrailer and Ram 2-Speed Square Jacks #TJD2SP-12900-GBX.

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Answer 8

Since you are limiting your trailer to 10000lbs, and the average tongue weight is 10-15% of the trailer weight, you are looking at 1000-1500lbs tongue weight. With that said it is a good idea to use a jack with a larger capacity as it will be able to…

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Answer 9

It will not; there are no replacement detent balls available unfortunately so you'll need to replace your 12000 Series jack with the Square 2-Speed Jack #TJD2SP-12000SP-F.

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Answer 10

To use the 25K etrailer Square Gooseneck Companion Jack #TJD-25100 at the front of your TopHat trailer you just need the following parts: - Connecting Rod #LG-XTB - Sidewind Crank #TJD-12000-HD We don't have a bracket for the connecting rod but…

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Answer 11

These are both great questions! Jacks with 2 speeds have the gears changed by either moving the handle to a different spot on the jack, or having the handle pushed in or pulled out to change the gear that is engaged- with this specific jack,…

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Answer 12

For the Demco #DM13689-95 eZ-Latch coupler, we recommend the #e98887 which would install into the hole indicated in the photo I've provided.

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What Are The Gear Ratios Of The Square 2-Speed Jack w/ Crank TJD2SP-12000SP-F

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