Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

JD 350B power


 
Post new topic    
View previous topic :: View next topic  
Author Message
john jenner
New User


Joined: 06 May 2014
Posts: 2


Report to Moderator

PostPosted: Tue May 06, 2014 12:20 pm    Post subject: JD 350B power Reply to specific post Reply with quote

Bought a JD 350B for the log arch and winch (working in the woods). Decided last weekend to pop some small stumps but ran into issues. Everything seems to work as it should (reverser, transmission) but then I went to push on a stump the dozer seemed to just stop. Motor did not act as though under a load. Seems to move dirt OK but compared to my other dozer, I am used to putting in 1st gear, full throttle, and the dozer either moves what it is pushing or turns the track (to a point at which the motor will nearly stall out under load). The JD just stops but motor does not even act as though it is under a load. Could this be my reverser? Not a mechanic but fortunately have a couple friends who are. Any help would be greatly appreciated. I hope I was clear enough on this post as to what is going on. I also noticed the hydraulics are not near as strong as my other dozer. Not sure it that is tied in or not.
 
Back to top
View user's profile
JDemaris
Tractor Guru


Joined: 01 Jun 2003
Posts: 12477


Report to Moderator

PostPosted: Tue May 06, 2014 5:19 pm    Post subject: Re: JD 350B power Reply to specific post Reply with quote

I'd suspect the steering clutches over the reverser - but it could be either. I think under the seat on top of the rear of the transmission - there is a plate you can removes so you can see the top of the ring-gear (that drives both final drives). If you can seed your ring gear - the thing to do is make it slip while in gear and see if that ring is turning or not. If it's turning- both your steering clutches are shot. If it's NOT turning - then it's your reverser that's slipping. You can also put a gauge into the control valve of the reverser and check pressure. Near where the clutch pedal linkage hooks to it - there are two 1/8" pipe plugs. One is lube/release pressure and the other is clutch pressure. Lube should be 15-25 PSI and clutch pressure around 120 PSI. If it's under 100 PSI you can assume the reverser is slipping. A grease gun hose with a 200 PSI gauge screwed onto it will work for the test.
 
Back to top
View user's profile
PD Mechanical
Regular


Joined: 05 Aug 2004
Posts: 242
Location: Syracuse, NY

Report to Moderator

PostPosted: Wed May 07, 2014 11:59 am    Post subject: Re: JD 350B power Reply to specific post Reply with quote

A little more Info please. Will the machine move at all now? If so it could be either reverser or steering as JDemaris says. Follow his instructions to pinpoint the problem. Quite often the steering clutches become oil soaked from leaking final drive or bevel gear seals. If it no longer moves at all, it is likely the splined coupling between the reverser and the transmission. If you have other questions or need parts feel free to contact me directly. Good luck. Steve. www.sadygerts.com
 
Back to top
View user's profile
john jenner
New User


Joined: 06 May 2014
Posts: 2


Report to Moderator

PostPosted: Wed May 07, 2014 1:22 pm    Post subject: Re: JD 350B power Reply to specific post Reply with quote

tractor moves fine. Just not much "low end grunt". Steers fine left but right, if I pull the lever and it is not full throttle, the dozer will actually stop. Seems to work much better if full throttle. Reverser seems to function fine with no issues. Hopefully this is what you needed. Let me know if more questions. Thanks so much for the recommendations
 
Back to top
View user's profile
JDemaris
Tractor Guru


Joined: 01 Jun 2003
Posts: 12477


Report to Moderator

PostPosted: Fri May 09, 2014 4:25 am    Post subject: Re: JD 350B power Reply to specific post Reply with quote

In reply to
"tractor moves fine. Just not much "low end grunt". Steers fine left but right, if I pull the lever and it is not full throttle, the dozer will actually stop."

Define "steers fine?" Steering has two parts. One is when you pull part-way back and the track stops getting power. Two - is when you pull back more and the brake-band engages and stops the track. Need more info. A 350B has dry steering clutches so engine RPM has nothing to do with them slipping or not. On the other hand - the reverser relies on hydraulic pressure to be adequate and that CAN get better with higher RPM if worn.

If your problem is "momentary" or RPM related - you can rule out worn/broken parts like splines and shafts. The best way to determine if your reverser is slipping is by what I already told you. You need to see if the ring gear is spinning when the crawler is not moving.

In regard to the steering clutches? Lock or hold the parking brake on. Put in 2nd gear, reverser in forward, and have both steering levers held back. Then slowly release the left one. It shoulde get to a point where the engine starts to labor and finally stall the engine as you release it more. If you fully release it - the engine is still running ( assuming the brake is holding) -something is slipping. Do the same test with the right and compare.
If you want to just test the steering brakes - get on a hill steep enough so the crawler can roll in neutral. Let it roll and then try pulling back on either lever and see if the brake grabs on that side and locks up the track.
 
Back to top
View user's profile
JDemaris
Tractor Guru


Joined: 01 Jun 2003
Posts: 12477


Report to Moderator

PostPosted: Fri May 09, 2014 4:29 am    Post subject: Re: JD 350B power Reply to specific post Reply with quote

One more thing. If your brake won't hold tight enough to test when in 2nd gear - just put the trans in a high gear e.g. 3rd or 4th.
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Crawlers, Dozers, Loaders and Backhoes All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters