How-To:
STEP ONE: Locate the plastic cap that has some aluminum tab. It has an Allen screw fitting underneath it. Break it and pop it off. You’ll wreck the cap in the process, but that’s okay.
STEP TWO: Next, remove also the secondary safety piece that looks like a ring
STEP THREE: Loosen the jam nut against the pump body to change the pressure setting
STEP FOUR: While the jam is loose, giving a quarter of a turn clockwise will increase the pressure. Counter clockwise will decrease the pressure.
Note: A quarter of a turn will give you about 100-150 psi increase/decrease
STEP FIVE: Once desired pressure setting is achieved, tighten the jam. Double check your system pressure, and repeat the process as needed.
Read Full Video Transcript
Just doing a short video today to demonstrate how to adjust the pressure on the Eaton pressure compensating piston pumps. These are on the 12, 16, and 20 gallon a minute HydraBoost systems. To adjust it, you need to break this plastic cap that has an Allen screw fitting underneath of it. So you basically pop it off. It’s plastic with some aluminum tabs. As you can see, you’re gonna wreck the cap doing it. Then you have this piece here come off next. Then to change the pressure setting, you’ll need to loosen the jam nut here against the body of the pump. To adjust the pressure on the high-pressure screw here, you need to loosen the jam nut while holding this with your Allen wrench. Break that loose. If you give this a quarter of a turn clockwise, that increases the pressure, counter clockwise of course decreases. Do this a quarter of a turn at a time, you will get a substantial jump. Do not have the pump turning; have your tractor PTO off. Do it a quarter turn at a time should give you 100-150 psi increase going this way. And then restart it, check your system pressure and repeat as needed. And that’s it.
Dan Symington
Sales Representative
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