where to put Hydraulic Pressure gauge

R

Rkh

Member

• Dec 31, 2014

• #1

the location of the pressure guage shows pressure only when bucket lifts tractor. my question is from the top view can I take off the hex nut next to the "in" line to get pressure reading of pump?

 

O

old

Well-known Member

Location

Camdenton Missouri

• Dec 31, 2014

• #1

Hyd pump only puts out pressure when you pull a control handle other wise it is just pump fluid in a circle. So you only can get a reading when the pump is doing some work. Where I put a gauge was in the pressure side line going into the valve body that way when you pulled any control you got a reading. I used a pipe tee so as to plumb it in

 

O

oli

Member

• Dec 31, 2014

• #1

like old said!!

 

S

Steve@Advance

Well-known Member

• Dec 31, 2014

• #1

You can get the pump pressure where the gauge is now. Just hold the lever until the cylinders are at the end of the travel, take the reading.

That will give a good reading as long as the seals are good in the cylinder. If the cylinder will hold position under load, the seals are good.

 

A

Alan K

Well-known Member

• Dec 31, 2014

• #1

That is what we were told in vo-tech. Pumps don't create pressure, just flow.

 

Dennis K (WA)

Member

Location

Othello, Wa

• Dec 31, 2014

• #1

The hex nut bottom left in your pics appears to be the pressure relief valve. So that is where you would adjust it not where you could plug the gauge in.
For a reading no matter which operation you use do as old said.
Tee into the inlet line.

 

N

NCWayne

Well-known Member

• Dec 31, 2014

• #1

In answer to your question, providing that either one, or both of the hex fittings in the top of the valve block are connected to the inlet side of the valve, then yes you should be able to remove one of them and plumb in a guage there to read system pressure full time.

In that location, you should see a relatively low system pressure until such time as you pull the lever on a function. From there you'll see the true pressure needed to do whatever it is your doing with that particular function. If your using both the lift and roll function at the same time, then you'll see the higher of the two pressures needed to perform the task.

If you can't tap in at one of the hex fittings, then you would need to tee into the line going into the valve body to do the same thing.

 

D

Dick2

Well-known Member

• Dec 31, 2014

• #1

That is not an oil filled gauge so the needle will probably bounce around a bit. An oil filled gauge is more accurate and more stable.

 

M

mjsnodgrass

Member

• Dec 31, 2014

• #1

pressure is resistance to flow. you will only see the amount of pressure required to do the work

 

R

Robert Major

Well-known Member

• Dec 31, 2014

• #1

Hi looks to me like that is an oil/ glycerin filled gauge. it has the top fill port to get the liquid in. If you look closely about a 1/4" down from the top of the glass is what looks to be a tide line of the fluid. Like all my system test gauges have that are fluid filled. so that gauge should be accurate for what it's worth in this topic and it being fitted right.
Regards Robert

 

onefarmer

Well-known Member

Location

6735 S Lowell Rd, St Johns, Mi 48879

• Dec 31, 2014

• #1

If I get what you are really wanting......You should replace the elbow on the left side of the valve with a tee and put the gauge on the top of the said tee. This would give an input pressure reading instead of just a reading of the bucket pressure you currently have.

 

OP

OP

R

Rkh

Member

• Dec 31, 2014

• #1

It is oil filled.

 

J

J. Schwiebert

Well-known Member

• Dec 31, 2014

• #1

And the highest pressure is at the pump because it has to push the fluid thru the rest of the system.

 

O

Owen Aaland

Well-known Member

• Dec 31, 2014

• #1

Knowing the pressure on the down side of the loader is not helpful for much. If it was installed on the lift side it could be used as a measure of how heavy a load you are lifting.

 

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David G

Well-known Member

• Dec 31, 2014

• #1

The pressure drop from the pump to the valve should be negligible at typical flow rates.

 

D

David G

Well-known Member

• Dec 31, 2014

• #1

The fittings and pipe are only rated to 300 PSI.

 

D

Dave in Tx

Member

• Dec 31, 2014

• #1

I know you are right David on the pressure ratings of pipe, but have seen it used for years on 2300 lbs. and don't recall ever seeing one split.

 

D

David G

Well-known Member

• Dec 31, 2014

• #1

I have done it too, and never had a failure, just bugs the engineer in me.

 

D

Dave in Tx

Member

• Dec 31, 2014

• #1

Yes, I know. I always wonder how bad a bath this will give me. So far so good. Happy New Year to you and yours.

Dave