Lift arms won't lower - traction boost?

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I'm in the process of putting a 3 point conversion on my d-17 series 4 and I can't get the lift arms to go down. The FEL works fine so I don't think it's a hydraulic issue. I was actually able to get them to collapse if I put the lift arm lever all the way forward and stood on arms. It raised when the lever was pulled back, but won't go back down on its power. The traction control linkage is completely broken off, just a small piece of it is dangling from the bottom connection. I'm assuming this could be causing some type of a problem. How do I just turn traction boost completely off? I also can't get the traction boost and position control lever to move separate of each other they'll only move in unison like they're stuck together. I also can't read the writing so I don't know which position I should go and what exactly they do in each position. Any help would be appreciated, I'm at a loss. 

	This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
	The Forum	Parts and Services	Unofficial Allis Store	Tractor Shows	Serial Numbers	History

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Jkhill1984 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 27 Aug 2017 Location: New Glarus, Wis Points: 9	Post Options Post Reply Quote Jkhill1984 Report Post Thanks(0) Quote Reply Topic: Lift arms won't lower - traction boost? Posted: 01 Sep 2017 at 9:32am
	I'm in the process of putting a 3 point conversion on my d-17 series 4 and I can't get the lift arms to go down. The FEL works fine so I don't think it's a hydraulic issue. I was actually able to get them to collapse if I put the lift arm lever all the way forward and stood on arms. It raised when the lever was pulled back, but won't go back down on its power. The traction control linkage is completely broken off, just a small piece of it is dangling from the bottom connection. I'm assuming this could be causing some type of a problem. How do I just turn traction boost completely off? I also can't get the traction boost and position control lever to move separate of each other they'll only move in unison like they're stuck together. I also can't read the writing so I don't know which position I should go and what exactly they do in each position. Any help would be appreciated, I'm at a loss.

Sponsored Links

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22141	Post Options Post Reply Quote DrAllis Report Post Thanks(1) Quote Reply Posted: 01 Sep 2017 at 12:22pm
	Traction Booster/Position Control levers should both be forward. Having to stand on the snap-coupler lift arms while holding the Lift/Lower lever clear forward is very NORMAL !! on a series 4, as they will never go down under their own weight. Once you get the lift arms down, start the engine and set the throttle at no more than 1,000 RPM. If the arms come up slowly on their own, you have a T.Boost linkage/plunger issue. If they don't come up at slow engine speed, everything is fine. They probably will come up slowly as the engine speed is increased and this is also normal with cold oil and with snap-coupler hitch.

Joe(TX) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Weatherford. TX Points: 1682	Post Options Post Reply Quote Joe(TX) Report Post Thanks(0) Quote Reply Posted: 01 Sep 2017 at 7:55pm
	I had the same problem on my 180 and 170. The actuator lever that pushes in the spring loaded plunger on the control valve was frozen up. I had to remove it and free it up on the spacer bushing.
	1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A