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Thomas  > General  > T-85 2005 820hrs knocking/jamming front right  
 
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 Author Thread: T-85 2005 820hrs knocking/jamming front right
billy the bat is not online. Last active: 11/13/2012 1:49:08 AM billy the bat
Joined: 29 May 2011
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T-85 2005 820hrs knocking/jamming front right
Posted: 05/30/2011 12:18 AM
Hi, I have a 2005 T85 i have clocked up about 500hours on it. It has been a great machine. very happy with it. Now a few months ago i got a leak from the rear wheel axle on the left hand side (looking at front on) It apeared to stop, i checked the fluid it was low, so i filled it up and it still has not leaked again, cant explain it, but will be getting it repaired?? now the problem is i think i ran it with low oil on that side for a little while... Occasiaonly..when using the arms and turning at the same time it will kind of lock on the right side and then unlock with a knocking sound. Im fairly sure it is coming from the final drive where the leak was, but instead of the back wheel where it leaked , the knock appears to be from the front wheel....i cant be sure 100% though..it could be from the booms but i highly doubt it i am certian it is from the final drive especially as it happens when turning whil moving the booms at the same time. ...but not always it is far from a constant thing. What could that be? there is oil in there. does it require a new chain or tightening? Any ideas?
skidsteer.ca is not online. Last active: 6/30/2013 6:59:27 PM skidsteer.ca
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Re: T-85 2005 820hrs knocking/jamming front right
Posted: 05/30/2011 07:20 AM

Not sure what lifting would have to do with it other then perhaps increasing the weight on that corner, causing it to bind. It only does it when lifting?

I'm going to guess a bad bearing on that axel. Jack the machine and see if there is any side to side or up down slop. Should be tight.

Failing this, see how much slack there is in the chain by rolling it ahead and back by hand. (while jacked up) Ideally the tire tread should move @ 1”

If you have say 3” of movement on the tire it would be a good idea to look at the chain and sprockets.

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Tazza is not online. Last active: 4/16/2014 7:17:14 PM Tazza
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Re: T-85 2005 820hrs knocking/jamming front right
Posted: 05/30/2011 03:10 PM

You mention a final drive, is this a tracked machine or just tyres? If its locking up and it has wheels, it sounds like a bearing or chain issue. If its tracked its not good news either. Its possible the planetary gearbox (if it has one) could have lost a few teeth and that's what binds up. Even a bearing could be going out.

I'd really recommend you don't use it and find the problem before it gets made worse, you could be up for a wholle new drive motor.


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
billy the bat is not online. Last active: 11/13/2012 1:49:08 AM billy the bat
Joined: 29 May 2011
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Re: T-85 2005 820hrs knocking/jamming front right
Posted: 06/01/2011 03:44 AM
Hi thanks for the replys. As for lifting and turing at the same time it is just that it appears that way...usually loading the truck and then turning and lowering the backet from height at the same time. Only thing i could think of to relate the lefting and knocking at the same time is the extra strain on the motor doing 2 things at once...but i am not sure if that is how it would work. Mind you it has done it whith out lowering or lifting the boom as well. And i noticed today it tends to be quite sticky on that wheel when first started and the machine is cold. The manual states that if it is sticky just wiggle the levers til it is free and this should be expected from time to time. I will check the wheel play tomorrow as you suggested. It does not have tracks just wheels and tyres. On another note i have to fix up the boom arms as they have cracked around the pivot on the arm rams. but i have seen a few do this. and i dont use the machine for material handling..rather alot of hard ground excavtion and some concrete removal. so may be to be expected? Ill give you a heads up on how i go incase anyone else has a similar problem and they can reference it. Cheers.
skidsteer.ca is not online. Last active: 6/30/2013 6:59:27 PM skidsteer.ca
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Re: T-85 2005 820hrs knocking/jamming front right
Posted: 06/01/2011 06:22 AM

Cheack you wheel/axel bearings and look for steel in the chain case oil on the right.

Both rh wheels should be acting sticky though as they are both tied together through a single wheel  motor on most brands. Sorry I have never worked on a Thomas.

skidsteer.ca


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
billy the bat is not online. Last active: 11/13/2012 1:49:08 AM billy the bat
Joined: 29 May 2011
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Re: T-85 2005 820hrs knocking/jamming front right
Posted: 06/16/2011 03:38 AM
I have not fixed it yet but had a bot of a look and it feels like the chain for the front wheel is slack. the wheel has quite a bit of play compared to the other wheels. I need to measure the deflection/Slack of the chains and adjust. Dont think is the bearing....just hope it has nothing wrong with the sprocket. I will keep you informed for other future reference if this occurs to someone else.
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