Hydraulic Valve Question D Roadgrader

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   All Concerned!   I finally got my ring and pinion repaired and am back in business, except for one little problem.   The Hydraulic Valve which controls the left bank of three levers is leaking where the plunger or spool goes into the control mechanizum (SP).   I called the local hydraulic shop and they want to know the (1) Gallons Per Minute flow rate, (2) Open or Closed System, (3) the PSI?   
Can you help me?    Need advice and information!

Thank you so much....!   

Michael Clites     

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D-Patrol Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 20 Mar 2014 Location: Carthage, SD Points: 36	Post Options Post Reply Quote D-Patrol Report Post Thanks(0) Quote Reply Topic: Hydraulic Valve Question D Roadgrader Posted: 05 Sep 2018 at 1:43pm
	All Concerned! I finally got my ring and pinion repaired and am back in business, except for one little problem. The Hydraulic Valve which controls the left bank of three levers is leaking where the plunger or spool goes into the control mechanizum (SP). I called the local hydraulic shop and they want to know the (1) Gallons Per Minute flow rate, (2) Open or Closed System, (3) the PSI? Can you help me? Need advice and information! Thank you so much....! Michael Clites

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CAL(KS) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Sep 2009 Location: Chapman, KS Points: 3804	Post Options Post Reply Quote CAL(KS) Report Post Thanks(0) Quote Reply Posted: 05 Sep 2018 at 2:08pm
	I would guess an open center system but i dont own one. graders prior to serial # 5378 used a hydreco valve and graders #5378 and up use a husco valve. the valves should have tags on them you can give the numbers to your shop. i have serious doubts its more than 30 gpm but i cant say for sure. GPM and pressure should be listed in a service or operators manaul. you say left bank that sounds like the auxiliary valve parts book http://files.minnpar.com/partbooks/MOTOR%20GRADER%20MANUALS/ALLIS%20CHALMERS%20MOTOR%20GRADER%20MANUALS/D%20PM%20%2370667884.PDF Edited by CAL(KS) - 05 Sep 2018 at 2:10pm
	Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

D-Patrol Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 20 Mar 2014 Location: Carthage, SD Points: 36	Post Options Post Reply Quote D-Patrol Report Post Thanks(0) Quote Reply Posted: 05 Sep 2018 at 3:01pm
	Hi, Thank you for your response. I had one fellow on the phone tell me, he thought the flow would be 8-10 gallons per minute, the PSI would be 2200 and that the system would be open. I have a parts manual but not the owners/operators manual. Can you tell me where I can get an owners manual. I am also seeking a creeper tranny attachment, a power steering unit, and a cab. Do you know where I can get an owners manual. Mike

im4racin Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Jun 2017 Location: Garrison ND Points: 1074	Post Options Post Reply Quote im4racin Report Post Thanks(0) Quote Reply Posted: 05 Sep 2018 at 3:35pm
	hold on!!! if you have the early sn you just need a seal from napa. mine were leaking and I got a seal from them and fixed it. I can get that number if you need it. as for the creeper....good luck. try wellers at 1-800-255-9325. they have been very good at helping me with parts

D-Patrol Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 20 Mar 2014 Location: Carthage, SD Points: 36	Post Options Post Reply Quote D-Patrol Report Post Thanks(0) Quote Reply Posted: 06 Sep 2018 at 12:29pm
	Yes Please!! That would be great. If you send me an email address, I can send you pictures of my to IOT determine if it’s the same. My email is michaelkclites@hotmail.com. I am in Carthage SD. I ran across a chap in Nebraska who had a cab, but I can’t find his email anymore.