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D-17 piston pump
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mruhlig77 View Drop Down
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Joined: 19 Aug 2014
Location: central Indiana
Points: 595 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mruhlig77 Quote  Post ReplyReply Direct Link To This Post Topic: D-17 piston pump
    Posted: 29 May 2017 at 9:31am
Is there a good way to check one out..?.lift arms won't lift...fluid levels all correct....thinking of removing covers , draining, and new fluid....might have a stuck spring or relief valve??
Transport valve screwed out...
Thanks, Mark
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Clay View Drop Down
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Joined: 11 Sep 2009
Location: Udall, Kansas
Points: 10166 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Clay Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2017 at 9:36am
Check the transmission oil level.  
If it is high, there is a good possibility that the internal hose broke.  
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Clay View Drop Down
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Joined: 11 Sep 2009
Location: Udall, Kansas
Points: 10166 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Clay Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2017 at 9:37am
I re-read the original post.  
Check the linkage for the Traction Booster.  
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Bill Long View Drop Down
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Joined: 12 Sep 2009
Location: Bel Air, MD
Points: 4556 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill Long Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2017 at 12:13pm
Check the pressure with a pressure gauge.  Should be over 3000 psi
Good Luck!
Bill Long


Edited by Bill Long - 29 May 2017 at 12:14pm
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mruhlig77 View Drop Down
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Joined: 19 Aug 2014
Location: central Indiana
Points: 595 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mruhlig77 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2017 at 9:34am
Any chance the cam lobes are wore out..?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22337 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2017 at 10:19am

Probably not the cam lobes as much as the rollers on the pumping arms.  As long as you are FULL of hydraulic oil ( dipstick below fuel tank on right side of tractor with breather on the top of it) you about have to remove the pump for repairs if the pressure at the remote outlet isn't at least 3,000 psi.
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Nathan (SD) View Drop Down
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Joined: 11 Sep 2009
Location: Day County SD
Points: 1289 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Nathan (SD) Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2017 at 10:29am
Blown lift arm hose.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22337 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2017 at 10:45am
If that is true, then the hydraulic compartment will be very low on oil and the transmission (to the right of the gearshift) will be overfull. He claims all THREE fluid levels are fine.
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Brian Jasper co. Ia View Drop Down
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian Jasper co. Ia Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2017 at 1:41pm
I had this same problem with my CA. It turned out the springs under the plungers in the pump had all broken so the plungers weren't following the rollers. 4 new springs problem solved.
"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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mruhlig77 View Drop Down
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Joined: 19 Aug 2014
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Points: 595 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mruhlig77 Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2017 at 7:06am
Thanks Brian and all...Mark
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