D17 hydraulic pump
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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=41043
Printed Date: 26 Aug 2025 at 2:16am
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Topic: D17 hydraulic pump
Posted By: M2L2farmer
Subject: D17 hydraulic pump
Date Posted: 24 Nov 2011 at 8:29am
| Does anyone know where to get a pump to mount on the side of the tractor? Has anyone ever done this? Is this hard to do? The pump under the belly does not pump fluid very fast with a loader on it! |
Replies:
Posted By: CTuckerNWIL
Date Posted: 24 Nov 2011 at 8:37am
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If you have a series I, II, or III, the standard pump works fine with the right cylinders. It is a high pressure low volume pump. If you have larger diameter cylinders made for low pressure, high volume pumps, it will be slow. I have seen D17's with a pump added in place of the belt pulley, but it won't be live with the foot clutch like the series IV D17. There is also the possibility of mounting a true live pump up front off the crankshaft and I know some guys on this forum have done that also. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Brian G. NY
Date Posted: 24 Nov 2011 at 8:38am
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I don't believe you can mount a live pump like the one on the Series IV D-17 at the pulley location on the side of the tractor. The internals are set up totally different so as to provide full time power to the pump.
Your best bet is to install a front mount pump to run off the crankshaft.
You will find a wealth of info about doing this in past posts on this site which you should be able to access by doing a search.
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Posted By: DaveKamp
Date Posted: 24 Nov 2011 at 9:46am
|
What Brian and Charlie are saying, is: You CAN, and people HAVE done this. What they've done, is obtained a belt-pulley accessory, and lopped off the housing and shaft, and machined it to accept a plate that would accept a standard type hydraulic pump. The catch is, just as Charlie stated... the belt-pulley attachment uses a bevel gear to engage the engine output shaft JUST PAST the clutch... so whenever the clutch is depressed, the pump will stop. The Series IV had a different clutch arrangement- there was an inner and outer shaft, one which coupled directly to the flywheel, and turned whenever the engine was running... it was coupled to the hydraulic pump mounted at the belt-pulley position. The other shaft was coupled through the clutch, and drove the rearend just like the earlier series. So if you mounted a high-volume pump at the belt-pulley, you'd have the equivalent of say... mounting a PTO pump on the PTO shaft (and leaving the PTO engaged). Anytime the clutch is out, you have hydraulics. For a loader, that's more tolerable on a D17 than some OTHER tractors, because the Power Director allows you to disengage the drivetrain and leave the PTO spinning... but it's not what I'd call 'optimal'... because you eventually find need to do two things at once (lift and curl while shifting to reverse). This is why the guys suggest mounting a front pump, which is what I'm doing right now (albeit rather slowly). One of these days, I'll find my post (now buried by several months at least) and add the most recent pictures... |
Posted By: M2L2farmer
Date Posted: 24 Nov 2011 at 8:47pm
| Does anyone have one of these mounting plates for the front or do I have to make one. I am a welder by trade so no big deal but how do you get the shaft attached to the front of motor? |
Posted By: M2L2farmer
Date Posted: 24 Nov 2011 at 8:52pm
| Well I know its not a series IV for sure....It does say any series on it so I think its a series One! |
Posted By: Brian G. NY
Date Posted: 25 Nov 2011 at 10:33am
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Here are some pics that I saved from prior posts regarding the front mount pump.
I hope these will help.
 |
Posted By: Brian G. NY
Date Posted: 25 Nov 2011 at 10:38am
Well, I can't seem to post more than 1 pic at a time today?! 
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Posted By: Travis(NE)
Date Posted: 25 Nov 2011 at 10:45am
| All of the front pump parts were available from AGCO a few years back when I did my D-19 and I think someone was selling repop'd ones in Hutch this year. |
Posted By: DaveKamp
Date Posted: 25 Nov 2011 at 11:31am
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Here... just added a picture to mine: http://www.allischalmers.com/new/forum/forum_posts.asp?TID=29427&PID=313022#313022 |