BXpanded Hydraulic Pressure Test Kit

thavil · Nov 25, 2009

I finally purchased the BXpanaded Hydraulic Pressure Test and Adjust Kit Hydraulic Pressure Test and Adjust Kit. For those of us that have limited to no knowledge of hydraulics, this kit is nice to have. I have bought other great products from Harry at BXpanded but never did purchase this kit until recently.

I have read other threads about making your own kit but again, for those of us with limited knowledge, this kit lays it out step by step on how to test and adjust the pressure if needed. I'm sure you can make your own for much cheaper but this took the guess work out for me.

On my first test with the kit, I only had 1700 psi on a 1 1/2 year old BX24. The pressure should have been 1778 psi by the specs in the manual for the FEL. After adding a 1mm and 2mm shim, I am now reading 1800 psi. Once the ground dries out some, I'm anxious to see the difference in the FEL power.

bota jim · Nov 25, 2009

you can bring it up higher. the spec for the top psi range is 1849 or something like that. i adjusted mine about a year ago and i had a thread here somehwere with all the part #s from mcmaster carr for all the pieces needed to do it. most of the guys at the time had theirs upto 1900-1950. mine has been running at 1950 for about a year now.

Slice · Nov 26, 2009

I did mine, it was at 1550 psi cranked it up to 1800 psi big difference
Kit was easy to use.

EE_Bota · Nov 26, 2009

thavil said:
I have read other threads about making your own kit but again, for those of us with limited knowledge, this kit lays it out step by step on how to test and adjust the pressure if needed. I'm sure you can make your own for much cheaper but this took the guess work out for me.

You got a one stop kit that is of good quality that you were able to apply immediately and get results immediately, so I say money well spent. A well done kit is a wonderful thing unless one has loads of time, and a high threshold for frustration.

At work, I often have to release my drawings to purchasing and to maintenance (but I have to commission the project later), and go on to the next project. But when I do have time to carry it to the stage where the parts are stacked in a kit box in the order they will be needed, all switches pre-configured, all communication networks pre-tested, step by step instructions provided, and a "tools required" list taped to the top of the box, it is a big win from my department in terms of overall cost. It costs me time, but much more time is saved with the maintenance folks when they start the job completely oriented, informed, and confident.

sw03 · Nov 26, 2009

good to know here since I was looking at it.

thavil · Nov 27, 2009

bota jim said:
you can bring it up higher. the spec for the top psi range is 1849 or something like that. i adjusted mine about a year ago and i had a thread here somehwere with all the part #s from mcmaster carr for all the pieces needed to do it. most of the guys at the time had theirs upto 1900-1950. mine has been running at 1950 for about a year now.

Thanks bota jim. For some reason, I had forgot about the other posts on this subject about raising the psi higher. The kit stated the pressure should be at 1778 psi (Harry staying on the cautious side for a reason). After re-reading the other posts, I will go out today and bump mine up a little higher.

Slice said:
I did mine, it was at 1550 psi cranked it up to 1800 psi big difference
Kit was easy to use.

Agree, the kit was very easy to use. Your psi was quite low, I bet bumping yours up really made a difference on yours.

EE_Bota said:
You got a one stop kit that is of good quality that you were able to apply immediately and get results immediately, so I say money well spent. A well done kit is a wonderful thing unless one has loads of time, and a high threshold for frustration.

At work, I often have to release my drawings to purchasing and to maintenance (but I have to commission the project later), and go on to the next project. But when I do have time to carry it to the stage where the parts are stacked in a kit box in the order they will be needed, all switches pre-configured, all communication networks pre-tested, step by step instructions provided, and a "tools required" list taped to the top of the box, it is a big win from my department in terms of overall cost. It costs me time, but much more time is saved with the maintenance folks when they start the job completely oriented, informed, and confident.

Great analogy!

sw03 said:
good to know here since I was looking at it.

Should be worth the money to you in what it will do for performance.

bota jim · Nov 27, 2009

mine was originally at 1700. kubota has a psi range where it should be and if i remembr right its 1750-1849 so you are still well below the upper range. going over a little if you want isn't going to hurt anything either. an extra 100 psi aint going to push it over the edge. kubota or any manufacturer isn't going to run their products anywhere near anykind of breaking point or they would be out of business. one thing to note, DO NOT overtighten the psi relief valve plug. the o-ring does the sealing. overtightening will collapse the valve seat........ask me how i know!!

thavil · Nov 27, 2009

bota jim said:
mine was originally at 1700. kubota has a psi range where it should be and if i remembr right its 1750-1849 so you are still well below the upper range. going over a little if you want isn't going to hurt anything either. an extra 100 psi aint going to push it over the edge. kubota or any manufacturer isn't going to run their products anywhere near anykind of breaking point or they would be out of business. one thing to note, DO NOT overtighten the psi relief valve plug. the o-ring does the sealing. overtightening will collapse the valve seat........ask me how i know!!

Thanks Jim. Good info on the psi range and great tip on not overtightening the relief valve plug!! I didn't get a chance to add more shims today, will do it tomorrow.

J_J · Nov 27, 2009

If those cylinders were 2 in bore with a 1 in shaft, pushing at 30 degrees, increasing the pressure from 1500 to 1800 psi increased you lift force by 944 lbs of force on both cylinders.

If the push angle is about 30 degrees, and 1500 psi, both cyl would still push at 4710 lbs.
-----------------------------------------1800 psi----------------------------5655 lbs
Giving an increase push force of 944 lbs.

A straight on push on both those cyl at 1800 psi will produce a force of 5,655 lbs. X 2 - 11,310 lbs. Then you have to take the mechanical geometry of the loader arms into play to figure the actual lifting weight. Keep in mind, that those relief pressures were set for a reason, and some of you are second guessing the reason. On out Power-Tracs, we know the reason, the rear end will come off the ground. We know the cylinders will lift heavier loads, but for safety reasons, they set the relief valves just so. Yea, I know you can tweak them a bit and gain some, but at what risk.