three spool control valve D-19
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=153838
Printed Date: 28 Nov 2024 at 2:43am
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Topic: three spool control valve D-19
Posted By: T-bone_indy
Subject: three spool control valve D-19
Date Posted: 10 Sep 2018 at 7:05am
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Hi All The lever that rises lift arms won't hold position. The previous owner had the unit rebuild but he said it only lasted a few weeks after that. Should I replace the whole unit or can I repair just the one control lever? Thanks ------------- D19-AC916-Kubota B2150- Wheel Horse charger 12 |
Replies:
Posted By: MACK
Date Posted: 10 Sep 2018 at 7:58am
| Are you saying the lift arms go down after you let go of lever or is lever going down? MACK |
Posted By: T-bone_indy
Date Posted: 10 Sep 2018 at 9:05am
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the 2pt arms go down and won't hold the bush hog up. after raising it up. ------------- D19-AC916-Kubota B2150- Wheel Horse charger 12 |
Posted By: T-bone_indy
Date Posted: 10 Sep 2018 at 1:06pm
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would one these suit for a replacement ? from northen tool  ------------- D19-AC916-Kubota B2150- Wheel Horse charger 12 |
Posted By: Travis(NE)
Date Posted: 10 Sep 2018 at 4:26pm
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Those valves would take a lot of plumbing to make work. There is a check valve for the traction boost that gets gummed up and wont hold and that is usually what causes the lift arms to not hold on the D19's. I have two of them that I need to look into as well.
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Posted By: T-bone_indy
Date Posted: 10 Sep 2018 at 9:39pm
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thanks for reply. Now i need to find it and how to take it apart is the question. can you point me in the right direction? ------------- D19-AC916-Kubota B2150- Wheel Horse charger 12 |
Posted By: MACK
Date Posted: 11 Sep 2018 at 6:58am
| It is the two way check valve. Remove top section from bottom section. There will be a valve stuck out of bottom of top section. Unscrew valve, a second part may stay in, unscrew it. Replace copper ring. Tighten valve with big screw driver, drop ball back in. With a soft punch and hammer, pound on ball then retighten several times until it s tight. Replace all orings and reassembly. MACK |
Posted By: T-bone_indy
Date Posted: 11 Sep 2018 at 7:14am
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Thanks Mack I will be being the tractor home later today once my tire is repaired. I will take it apart over the next few days and report back to what I found. Is the O-ring and copper washer available at the local auto parts store ? Thanks again
------------- D19-AC916-Kubota B2150- Wheel Horse charger 12 |
Posted By: Travis(NE)
Date Posted: 11 Sep 2018 at 11:34pm
I order the parts from my local AGCO dealer, but I’m sure anyone with an O-ring assortment could match them. I had one apart last night and found the previous person in there cracked the check valve housing. Luckily I have a parts tractor and was able to change it out and now it will actually hold the lift arms with blade up. I’ll attempt to post some pictures. The parts with a dash next to them are what you will need.    
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Posted By: Travis(NE)
Date Posted: 11 Sep 2018 at 11:44pm
| Haven’t figured out how to resize pictures yet... If I have time I will attempt to fix another one of mine that settles tomorrow and can take more pictures if you like... |
Posted By: T-bone_indy
Date Posted: 12 Sep 2018 at 5:42am
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Appreciate the info MACK! I just got the tractor over to my farm yesterday. I drove it 7 mile from it's previous farm. I probably won't have time to tear into until this weekend. Thanks again. I'll try locate the spare parts from AGCO.  ------------- D19-AC916-Kubota B2150- Wheel Horse charger 12 |
Posted By: Kub47
Date Posted: 07 Jun 2023 at 12:21pm
| Hey sorry to resurrect an old post but I’ve never really worked on hydraulics before and we have a D19 with the same problem. First Question how do you release pressure in the system. And Secondly is there any suggestions you’d give to someone doing this or working on hydraulics in general and staying safe. |
Posted By: Model 70
Date Posted: 15 May 2024 at 8:52pm
| Hello, I found this old posting and I’m having trouble with my 3 point arms settling also,split the 3 spool valve and removed the check valve mine is a one piece valve and not a 2 piece valve the pictures in the post show both, just curious how you remedy the settling problem with the type of check valve I have. Thanks in advance |