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
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


D15 II problems?
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Topic: D15 II problems?
    Posted: 09 Mar 2016 at 5:14pm
I have a D15 II, that has a couple of bugs I can't figure out.First, when plowing, my plow doesn't want to stay at set depth against depth wheel. It seems the traction booster is too sensitive. When you first start out with the TB lever all the way down, and lift lever all the way down, it wants to raise it some. You can pull the lift lever down, plow will go down also. Plow a few feet and it wants to raise from desired position, with TB lever at bottom. Second problem is after setting the governor as manual states, and carb main jet as manual states,when you drop plow in ground, engine hunts RPM's rapidly back and forth. third, if main jet is set per manual, when you throttle up fast, it hesitates. Does needle need to be more out or in? How much is too much? Any help appreciated.Thanks Tracy
No greater gift than healthy grandkids!
Back to Top
Sponsored Links


Back to Top
Dan73 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 04 Jun 2015
Location: United States
Points: 6054 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dan73 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:42pm
Try moving the neddle out a 1/4 turn at a time maybe as much as a full turn on the main jet. Sounds to me like the carb might have a little gunk in it from all the years and that the governor is opening to try and get more fuel thus the hunting you are seeing.
As to the traction boost I have never really used that system but it sounds like the adjustment on the bottom linkage that sets the amount of boost is too loose and needs to be tightened to provide more force before it lifts. The one word of warning on those system the great big spring on the bottom has probably weakened with time. I read in here a while back about the hitch failures that cause a plow to come unhooked from the snap coupler having something to do with a spring under there breaking. I wish I knew where that thread was. The point being you will want to clean up the underside of the hitch and inspect that big spring for any signs of stress cracks or broken coils be for you just adjust the traction boost linkage. I am sure someone else in here will be able to explain that setup better.
Back to Top
Macon Rounds View Drop Down
Orange Level
Orange Level
Avatar

Joined: 18 Feb 2010
Location: Pittsburgh Pa
Points: 2229 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Macon Rounds Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:44pm
three point or snap coupler tractor ???
The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate
Back to Top
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:47pm
The traction booster started acting up. Used to be fine. Don't know what could of caused it. How much out is too much. I have tried several turns. Thanks Tracy
No greater gift than healthy grandkids!
Back to Top
Dan73 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 04 Jun 2015
Location: United States
Points: 6054 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dan73 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:51pm
If you have taken the main jet out several turns I would take the carb apart and try to clean the little passages with a fine wire. It sounds to me like the ports in the bottom of the carb bowl are plugged up. At least that was the case with my d17 when it was hunting. Carbs are not much fun to clean.
Back to Top
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:52pm
Something else, the compensating spring broke on this tractor part # 0227736-6, it might help with the surging. Not sure. Tracy
No greater gift than healthy grandkids!
Back to Top
Macon Rounds View Drop Down
Orange Level
Orange Level
Avatar

Joined: 18 Feb 2010
Location: Pittsburgh Pa
Points: 2229 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Macon Rounds Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:54pm
"O" Yea ...........  fixed my 14 right up putting one on it.  However i didn't think the 15 series II had them ...
The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate
Back to Top
Macon Rounds View Drop Down
Orange Level
Orange Level
Avatar

Joined: 18 Feb 2010
Location: Pittsburgh Pa
Points: 2229 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Macon Rounds Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 5:55pm


Tracy ..... is it a snap coupler or three point tractor ?            If it is three point tractor, i have had an issue with the feedback clamp getting turned on the right hand rock shaft. However if it is snap coupler tractor that would not be a factor.

Edited by Macon Rounds - 09 Mar 2016 at 6:26pm
The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate
Back to Top
SteveM C/IL View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8628 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 6:42pm
Dan,the broken spring is the little one that keeps the latch in place.Nothing to do with the BIG spring.
Back to Top
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 6:59pm
Macon, it is a snap coupler tractor.The compensating spring is under the steering console, it hooks to throttle assembly. Tracy
No greater gift than healthy grandkids!
Back to Top
Macon Rounds View Drop Down
Orange Level
Orange Level
Avatar

Joined: 18 Feb 2010
Location: Pittsburgh Pa
Points: 2229 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Macon Rounds Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 7:23pm
ok...... from what i understand the basic NO LOAD setting on traction boost leaver is that you should feel feedback pressure about 2 knotches from the top setting, with NO LOAD.    I would start there. 
Just re-read your previous post were you said traction boost use to be fine.  Grrrr. 
 
Over sensative TB still sounds like an adjustment to me.  The manual has real good instructions on the adjustment on the feedback rod on the underside of Hyd pump too.   
   

Edited by Macon Rounds - 09 Mar 2016 at 7:30pm
The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate
Back to Top
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2016 at 7:28pm
Originally posted by Macon Rounds Macon Rounds wrote:



ok...... from what i understand the basic NO LOAD setting on traction boost leaver is that you should feel feedback pressure about 2 knotches from the top setting, with NO LOAD.    I would start there.   
   
Macon, that is pretty much it. Hopefully Dr Allis will chime in on this thread. He knows these tractors really well. Thanks tracy
No greater gift than healthy grandkids!
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 21899 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2016 at 7:54am
The adjustments for the Traction Booster are in the Owners Manual. The problem as described, sounds like a simple adjustment of the drop speed screw located under the sediment bowl. The lift/lower lever has to be LOCKED in the lower window for things to function correctly. If the window or lever pin or lever spring aren't in good shape, the lever won't stay in the lower horizontal position. It has to be horizontal while you are plowing. If this is so, and you still have issues, turn in the drop speed screw underneath the sediment bowl a turn or so and see if that doesn't improve things. The Traction Booster makes the arms lift......the lift/lower lever has to be locked down and the drop speed screw adjusted to allow the plow to go back DOWN into the soil. Again, this is in the Owners manual. There are two more adjustments, but until this is done, they shouldn't be messed with.
Back to Top
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2016 at 8:16am
Originally posted by DrAllis DrAllis wrote:

The adjustments for the Traction Booster are in the Owners Manual. The problem as described, sounds like a simple adjustment of the drop speed screw located under the sediment bowl. The lift/lower lever has to be LOCKED in the lower window for things to function correctly. If the window or lever pin or lever spring aren't in good shape, the lever won't stay in the lower horizontal position. It has to be horizontal while you are plowing. If this is so, and you still have issues, turn in the drop speed screw underneath the sediment bowl a turn or so and see if that doesn't improve things. The Traction Booster makes the arms lift......the lift/lower lever has to be locked down and the drop speed screw adjusted to allow the plow to go back DOWN into the soil. Again, this is in the Owners manual. There are two more adjustments, but until this is done, they shouldn't be messed with.
Dr Allis, I will try that next. What do you think about engine hunting? I have set governor arm and throttle per manual. Thanks Tracy
No greater gift than healthy grandkids!
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 21899 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2016 at 8:27am
Open the carb main jet a full turn. Adjust the "surge" spring on the governor in 1/4 turn at a turn at a time until surge goes away. THE LEAN CARB SETTING WILL CAUSE GOVERNOR TO HUNT !! FIX CARB FIRST. You should be able to yank the throttle open and never have a stumble in the engine when warmed up and in good tune.
Back to Top
Tracy Martin TN View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2016 at 10:40am

Dr Allis, what causes the engine to stumble when I give is throttle real fast? I will do the adjustments you advised on. Thanks Tracy
No greater gift than healthy grandkids!
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 21899 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2016 at 11:17am
Lean carb setting....too tight of valve lash.....incorrect ignition timing.....leaking valves (uneven compression)......dirty carb passages/jets....
Back to Top
Macon Rounds View Drop Down
Orange Level
Orange Level
Avatar

Joined: 18 Feb 2010
Location: Pittsburgh Pa
Points: 2229 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Macon Rounds Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2016 at 3:05pm
If you have been running ethanol fuel, i would focus on cleaning carb. Most likely find water and paarticles of sand type dibris in fuel bowl.

Edited by Macon Rounds - 10 Mar 2016 at 5:37pm
The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.109 seconds.


Help Support the
Unofficial Allis Forum