Volvo Mini Excavator How to Check track drive system
kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina Pics |
2012-09-06 184860
Well not a Cat but near as any board.
I have a friend who has a smaller Volvo Mini excavator that runs hot when driving it. It seems to run fine for sitting still and digging only when driving it. So feel issue must be in drive system.
Any suggestions on how to check the different rollers and such without removing the tracks to be sure they turn freely?
Thanks
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Volvo Mini Excavator How to Check track drive system
hardwood
Join Date: Dec 2002 Posts: 3583 iowa |
2012-09-07 184866
KT;
Most likely he could swing the bucket around to the side of the machine and push it against the ground to lift one track at a time off the ground. I really don't know how much resitance a properly tensioned track should have to run.
I think the tracks would be powered by hydraulic motors from the main hydraulic pump so possibly a hose is kinked or a line has been mashed from something like runing over a rock that has the flow restricted to the point of making heat from mthe excess pressure.
Frank. ....
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Volvo Mini Excavator How to Check track drive system
Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada Pics |
2012-09-07 184869
Kenny, it's been my experience that if one track is much stiffer to turn than the other, the machine tends to drift in the direction of the bad track rather than drive in a straight line.
Is the machine walking much slower than it used to? I've found the biggest culprit for making heat is a valve, like the pressure relief valve, partly open. This slows down the travel speed pretty good.
I'd also look into a spool valve needing resealing, that sort of slow leak is the first place to look.
Best of luck. ....
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Volvo Mini Excavator How to Check track drive system
kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina Pics |
2012-09-10 184887
thanks ....
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