D15 Auxiliary Hydraulic Valve
Printed From: Unofficial Allis
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=199784
Printed Date: 14 Nov 2024 at 8:03am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D15 Auxiliary Hydraulic Valve
Posted By: Travis2766
Subject: D15 Auxiliary Hydraulic Valve
Date Posted: 11 Feb 2024 at 8:46pm
I’m wanting to add auxiliary hydraulic valves to my D15 so I can run a two way cylinder. If I’m doing the work I would like to pipe it so a second spool would control the lift arms. If I pipe the second spool valve back to the original aux. valve (like the one in the picture) would this control the lift arms up and down? I realize I still would have no draft control but I’m hoping to get better/smoother height control of the lift arms. I realize I would have to pipe the current supply line to an open center control valve, run a return line back to the sump and have to put the original control lever on the console in the up position. Would this work achieve what I’m wanting it to do? ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Replies:
Posted By: DiyDave
Date Posted: 12 Feb 2024 at 4:16am
As far as the return line goes, there is a plug, on the left side of the torque tube, about shin high, when seated in operators position, that can be used for the return, IIRR... ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: DrAllis
Date Posted: 12 Feb 2024 at 6:50am
| You cannot connect two individual aux valves like christmas tree lights, one after the other. You probably will explode the first valve when you pressurize the second valve to max press. Get a 2-spool valve and you can do exactly what you want without issue. |
Posted By: Travis2766
Date Posted: 12 Feb 2024 at 7:17am
|
Thanks Dr.Allis, I should have been more specific. I would install a two spool valve, not install two individual single spools. I don’t want some cobbled together looking mess of valves! I know Allis made a single spool and three spool option (single one on eBay right now) but I would guess I’d be hard pressed find a three spool factory valve. ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: DrAllis
Date Posted: 12 Feb 2024 at 8:14am
| Ideally, you should try and find valves that have a "float" position in them, especially for the lift arms. That type of valve will cost more but will operate soooo much better. |
Posted By: DiyDave
Date Posted: 12 Feb 2024 at 4:20pm
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Check out Surpluscenter.com's inventory. You need to know the GPM, PSI and the operating system (open or closed ctr). ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: Travis2766
Date Posted: 13 Feb 2024 at 10:11am
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Doing my research for this and a question that comes to mind is do I need to be concerned with overheating the hydraulic oil? If I leave the hydraulic lever in the up position the pump is constantly pumping/flowing oil to the new aux. valve and back to the sump, will the hydraulic oil overheat being there is only 2.5 gallons in the sump? Or should I be putting the console lever in the neutral position when not using the added aux. valve (which then seems counter intuitive)? Or am I missing something? ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: DrAllis
Date Posted: 13 Feb 2024 at 10:20am
| I doubt that it will overheat, but you'll get tired of listening to the pump noise and will probably shut it down anyway for long periods of time. |