Adding gauges to JD855

   / Adding gauges to JD855 #1  

DaveNay

Platinum Member
Joined
Aug 13, 2003
Messages
834
Location
Waterman, DeKalb County, Illinois
Tractor
John Deere 855 MFWD; Oliver 1850 Gas
I would like to add some gauges to my JD855. Primarily, I am going to add a water temperature gauge, because I can't stand having just the indicator light that suddenly pops on at a given temp. I am also considering adding the following.
<ul type="square"> [*]Engine Oil Temp [*]Engine Oil Pressure [*]Hydraulic Temp [*]Hydraulic Pressure [/list] The water temp gauge is easy, I can just replace the existing sensor, but where do the other sensors go? I am figuring that I can use engine oil temp/pressure gauges for the hydraulics, not needing anything special. Could the hydraulic temp probe go into one of the case drain plugs in the transmission? I would like to make sure I place the sensors on the best location to get accurate readings.

Oh yeah.....why add the gauges? Because I want to! /forums/images/graemlins/laugh.gif /forums/images/graemlins/laugh.gif

Dave
 
   / Adding gauges to JD855 #2  
<font color="blue"> I can use engine oil temp/pressure gauges for the hydraulics </font>

You're not going to use an oil pressure gauge for the hydraulic pressure. That line will blow before the gauge itself explodes.
 
   / Adding gauges to JD855
  • Thread Starter
#3  
</font><font color="blue" class="small">( <font color="blue"> I can use engine oil temp/pressure gauges for the hydraulics </font>

You're not going to use an oil pressure gauge for the hydraulic pressure. That line will blow before the gauge itself explodes. )</font>

What do you mean? The hydraulics is too much pressure for the oil gauge? /forums/images/graemlins/confused.gif

I don't know what pressures are developed by CUT pumps.

Dave
 
   / Adding gauges to JD855 #4  
Oil pressure gauge may go to 100psi. Hydraulic pressures in a CUT can reach over 2500psi
 
   / Adding gauges to JD855
  • Thread Starter
#5  
Hmmmm......boom! /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif

Dave
 
   / Adding gauges to JD855 #6  
</font><font color="blue" class="small">( Hmmmm......boom! /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif

Dave )</font>

Yea, but you'd probably have the fastest oil pressure guage around.
Cliff
 
   / Adding gauges to JD855 #7  
Hi Dave,
Better monitoring is a great reason for a great project like you're planning.

I don't think many, if any, tractors come with a hyd. pressure gauge...do they? But, it's still a neat idea. I bought an oil filled hyd. pressure guage to help set the pressure relief valve when I was doing some shimming. Now, that project is over. Rather than have the guage just sit in the garage, I have it pigtailed into the main high pressure line of my BackHoe. I wish I had one on the dash to watch for all tractor functions.

I'll be interested to see what you come up with.

OkieG
 

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