Search For SkidSteer Related Info on The Web 


  We Accept Donations! 

If you enjoy what we have to offer or this site has helped you along the way, please consider a donation to help us defray the cost of development and hosting! Thanks



The safer, easier way to pay online!




  The SkidSteer Forum 

   
Forums Home   Search   Login   Register   Member List  

Bobcat  > General Questions  > Re: Right track pulls harder. Is this normal?  
 
Display using:  
Previous Thread :: Next Thread 
 Author Thread: Right track pulls harder. Is this normal?
DINGRAM is not online. Last active: 5/10/2007 2:07:16 PM DINGRAM
Joined: 02 Oct 2006
Total Posts: 11
 
Right track pulls harder. Is this normal?
Posted: 10/20/2006 06:51 AM
The right track on my T190 is pulls much stronger than the left. Is this normal, or is an indicaiton of a problem. It results in it turning much slower to the left when moving forward. Thanks. Dave

T190 w/2200 hours.
Kudagra is not online. Last active: 11/14/2006 4:26:18 PM Kudagra
Top 100 Poster
Joined: 19 Oct 2006
Total Posts: 34
 
Re: Right track pulls harder. Is this normal?
Posted: 10/20/2006 06:58 AM
Well the tracking could be off. You want to lift the cab (Engine off of course) and look at the bars going from the bellcranks to the pumps. When you move the sticks forward do they move the same amount or is one more forward then the other. I look where the 2 peice bars bolt together. Does it creep at high idle with your hands off the sticks? Track tension will also affect this if say the left track is too tight. Last thing to check would be to jack the machine up and make sure the brake isnt locking up on the left side.

Ex Bobcat Field Service Tech. If you have triangular head lights I probably have the manuals. Email for tech help.
DINGRAM is not online. Last active: 5/10/2007 2:07:16 PM DINGRAM
Joined: 02 Oct 2006
Total Posts: 11
 
Re: Right track pulls harder. Is this normal?
Posted: 10/21/2006 06:05 AM
I really don't think I have a creeping problem. When you say, "when I move the sticks forward, do they move the same amount.", don't they move as much as I push them?

T190 w/2200 hours.
Kudagra is not online. Last active: 11/14/2006 4:26:18 PM Kudagra
Top 100 Poster
Joined: 19 Oct 2006
Total Posts: 34
 
Re: Right track pulls harder. Is this normal?
Posted: 10/21/2006 06:35 AM
Well they have to MOVE the same distance. If they move in different distances you will have differnt outputs on each of the hydrostats. That will make your machine turn to one side when you are driving it with both sticks all the way forward. Those 2 sets of 2 bolts and nuts i mentioned change the legnth of the rods that go from the bellcranks to the pintle arms on the hydrostats. This is why I liked telling it to someone in person then over the phone...its much easier to just show it.

Ex Bobcat Field Service Tech. If you have triangular head lights I probably have the manuals. Email for tech help.
skidsteer.ca is not online. Last active: 6/30/2013 6:59:27 PM skidsteer.ca
Top 25 Poster
Forum Moderator
Joined: 20 Jan 2006
Total Posts: 3843
 
Re: Right track pulls harder. Is this normal?
Posted: 10/21/2006 08:49 PM

Does it go in a straight line if you push both steering levers fully forward?

How bought in reverse, if it won't in one or both directions travel in a straight line, it could be your steering levers need adjusted, often this also shows up as a “creeping” problem and the steering sticks don't self center in neutral

Does one track seem to be able to spin and the other one can't when pushing hard into a pile of dirt? This would be more of a sign of hydraulic trouble.

Ken


NH LS 160, S150, S185 Hoe Brusher Grapple Auger, Mixer Tiller Soil Conditioner Trencher Tracks Snow Blade Wood Splitter Stump Grinder Land Plane. Dealer Virnig Erskine McLaren Loegering Vts Componets Plus Wallenstein Bauma Lite
DINGRAM is not online. Last active: 5/10/2007 2:07:16 PM DINGRAM
Joined: 02 Oct 2006
Total Posts: 11
 
Re: Right track pulls harder. Is this normal?
Posted: 10/29/2006 12:28 PM
It doesn't creep, but the right will definitely push harder when I'm getting a scoop of dirt or something. And, if I am driving with it, and I push both sticks all the way forward, it tends to drift to the left. You think this might just be an adjustment problem and not a hydraulic problem. I hope so! Thanks. Dave

T190 w/2200 hours.
Tazza is not online. Last active: 4/20/2014 3:43:57 AM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11210
 
Re: Right track pulls harder. Is this normal?
Posted: 10/29/2006 03:31 PM

Mine seems to push a little harder on the left side, i had a thought on sunday (very rare) the previous owner changed a hydrostatic hose, the fittings are a bit smaller with larger adaptors, this will cause a restriction. I would check your hoses just to make sure they are all the same size and that it has no adaptors that could restrict the oil flow. Its only a slight drift, say 1 metre in a run of about 20 metres. It does it a little in reverse, but not as bad. How does yours go in reverse? does it still pull to the same side?

Failing that, you may need to take it to your dealer to get a flow and pressure test on the pump.


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
skidsteer.ca is not online. Last active: 6/30/2013 6:59:27 PM skidsteer.ca
Top 25 Poster
Forum Moderator
Joined: 20 Jan 2006
Total Posts: 3843
 
Re: Right track pulls harder. Is this normal?
Posted: 10/29/2006 04:26 PM

If we are strickly talking about the power of the drive, (its ability to spin one side versus the other under load) then this is strickly a pressure issue of one side and the other.

It sounds like you have a weak pump or a hyd drive motor that is letting some pressure escape without converting it back to mechanical energy to turn the track. You can't see any reason why there might be a drag or other parasitic loss of power on  the weak side. Ie a overtight track, bad idler etc?

Ken


NH LS 160, S150, S185 Hoe Brusher Grapple Auger, Mixer Tiller Soil Conditioner Trencher Tracks Snow Blade Wood Splitter Stump Grinder Land Plane. Dealer Virnig Erskine McLaren Loegering Vts Componets Plus Wallenstein Bauma Lite
DINGRAM is not online. Last active: 5/10/2007 2:07:16 PM DINGRAM
Joined: 02 Oct 2006
Total Posts: 11
 
Re: Right track pulls harder. Is this normal?
Posted: 10/30/2006 04:39 AM
Forgive my ignorance, but I'm a little new to Bobcats; Are there multiple hydraulic pumps, or just one? If there was only one, I would think it couldn't be a pump problem, or else they would both behave similarly.

T190 w/2200 hours.
Tazza is not online. Last active: 4/20/2014 3:43:57 AM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11210
 
Re: Right track pulls harder. Is this normal?
Posted: 10/30/2006 12:27 PM
There are actually 3, one for left, one for right and one for your hydraulics. When you see the pump, it looks like one unit though as they are all joined together.

Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
DINGRAM is not online. Last active: 5/10/2007 2:07:16 PM DINGRAM
Joined: 02 Oct 2006
Total Posts: 11
 
Re: Right track pulls harder. Is this normal?
Posted: 11/01/2006 05:12 AM
So that doesn't rule out a pump problem........

T190 w/2200 hours.
DINGRAM is not online. Last active: 5/10/2007 2:07:16 PM DINGRAM
Joined: 02 Oct 2006
Total Posts: 11
 
Re: Right track pulls harder. Is this normal?
Posted: 11/02/2006 08:44 AM
No, the tracks look equally tight. I've tightened the belt, added hyd. fluid, and otherwise did all the possible cheap fixes I can think of. It is definitely weak on the left side. When I push forward on the right stick only, it will spin on a dime; but with the left side, it will turn, but it struggles to turn, and i get a feedback, jumpy feel in the left stick. It strains when I push back on the left stick as well. Any suggestions for troubleshooting? Anyone know where I can get a manual for a T190. If I start digging into it I'm going to need one. Thanks! Dave

T190 w/2200 hours.
Tazza is not online. Last active: 4/20/2014 3:43:57 AM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11210
 
Re: Right track pulls harder. Is this normal?
Posted: 11/02/2006 12:35 PM

From what you are saying, it does sound like the pump or motor. I really do suggest you take it to your dealer to get a flow and pressure test done.

At the very least, call them and talk to the service department and see if they have any ideas.


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
goodtech is not online. Last active: 12/24/2006 12:29:39 PM goodtech
Joined: 22 Nov 2005
Total Posts: 112
 
Re: Right track pulls harder. Is this normal?
Posted: 11/12/2006 07:49 PM
Depends on your serail number of your machine, but what I have read it sounds like your left drive motor is going out, it is common for the first t-190 when they came out. The final drive bearing where to small and the they where going out and eating your drive motor apart. about a 2 years ago bobcat had a recall on certain serial numbers to replace those drive motors.
Kudagra is not online. Last active: 11/14/2006 4:26:18 PM Kudagra
Top 100 Poster
Joined: 19 Oct 2006
Total Posts: 34
 
Re: Right track pulls harder. Is this normal?
Posted: 11/14/2006 04:20 PM
You could also have a brake going south. Best way is to jack the machine up and support it with the tracks free. Then hop in and run it at low rpm. If one track dosnt run or takes alot more force it could be the brake. The dealer is also just going to cap off your lines and then run it the same way. If it stalls out the engine with the lines capped I would (and the dealer) would say its ok. If it is the brake you have to yank the drive motor on that side to get to the brake. If it was the brake solenoid bad it would affect both brakes.

Ex Bobcat Field Service Tech. If you have triangular head lights I probably have the manuals. Email for tech help.
Previous Thread :: Next Thread 
Goto to page:  Prev Next
 
Forums  > Bobcat  > General Questions  > Re: Right track pulls harder. Is this normal?  
   
(Copyright 2002-2010) Owens Consulting
*
Powered by E-SpiritLink    Terms Of Use    Privacy Statement
Portal engine source code is copyright © 2002-2014 by DotNetNuke. All Rights Reserved