Boards.ie uses cookies. By continuing to browse this site you are agreeing to our use of cookies. Click here to find out more x
Post Reply  
 
Thread Tools Search this Thread
13-08-2011, 12:18   #1
broro22
Registered User
 
Join Date: Feb 2009
Location: Wicklow
Posts: 92
kobelco Sk210 hydraulic problem

Just wondering can anyone shed any light on this one for me. Weve got a blue kobelco 210 year 2001 i think shes a dash 6.

She wont track on the right lever (even tough you can hear the pumps cycling up) unless you touch the left one. Also the dipper arm will only go out about half way then stops moving but the pump still cycles up and will actually stall the engine but if you touch the left track pedal the dipper sails on as normal.

Just wondering if anyones come across this as im bald enough without pulling out anymore hair
broro22 is offline  
Advertisement
13-08-2011, 16:45   #2
The Nutty M
Registered User
 
The Nutty M's Avatar
 
Join Date: Nov 2009
Location: 131m ASL way out weessssttttt
Posts: 347
Have you done any investigating of the valve chest?If you lift the right track and put it tracking does it make any attempt to turn the track at all? My first thoughts are sticking valves but never heard if anything like that.
The Nutty M is offline  
06-09-2011, 14:33   #3
th3dan
Registered User
 
Join Date: Apr 2010
Posts: 8
as the nutty m said valve chest .as it more or less be sticking relief valves .or else check the hoses and connections for leaks as they wont work if not at the right cracking pressure
th3dan is offline  
22-05-2013, 22:08   #4
lee taylor
Registered User
 
Join Date: May 2013
Posts: 3
I have an SK60 kobelco just after getting hydraulic pump done up when i put it back together digger went good for half an hour now movements are back to slow again, left hand leaver wont do nothing only arm will lift up, but killing the engine very bad, the rest of the movements wont do nothing, she is tracking slow but kills engine too. she kills engine on most movements but wont do nothing. i have the spool chest of and cleaned it all out and release valves of and blew all them out and cleaned them now i am stuck. can someone please tell me what the problem is? need help.
lee taylor is offline  
22-05-2013, 23:38   #5
NuckingFacker
Closed Account
 
Join Date: Apr 2013
Posts: 2,113
Quote:
Originally Posted by lee taylor View Post
I have an SK60 kobelco just after getting hydraulic pump done up when i put it back together digger went good for half an hour now movements are back to slow again, left hand leaver wont do nothing only arm will lift up, but killing the engine very bad, the rest of the movements wont do nothing, she is tracking slow but kills engine too. she kills engine on most movements but wont do nothing. i have the spool chest of and cleaned it all out and release valves of and blew all them out and cleaned them now i am stuck. can someone please tell me what the problem is? need help.
You've done all the filters right? All the hydraulic ones?
NuckingFacker is offline  
Advertisement
23-05-2013, 09:41   #6
Slidey
Closed Account
 
Join Date: Jan 2008
Posts: 13,481
If a pump fails it is imperative that the whole system is cleaned.

All the brass/swarf from the failed pump is lurking in the hyd loop of the machine and will wreck a new pump in a very short time.
Slidey is offline  
(2) thanks from:
23-05-2013, 19:58   #7
lee taylor
Registered User
 
Join Date: May 2013
Posts: 3
i have 2 new filters in the tank i think thats all is in her not sure .i cleaned out the tank twice with new oil each time am still not gettin the problem
lee taylor is offline  
23-05-2013, 20:18   #8
Slidey
Closed Account
 
Join Date: Jan 2008
Posts: 13,481
Quote:
Originally Posted by lee taylor View Post
i have 2 new filters in the tank i think thats all is in her not sure .i cleaned out the tank twice with new oil each time am still not gettin the problem
Have you physically cleaned the tank or just changed the oil?

Did you cut the filters open and check for debris?

Your next step would be to check what system pressure you are getting. You should also check your case drain out of your pump and see if it getting hot when a circuit is dead headed.

If it is you will need to find someone with a flow meter to measure the case drain
Slidey is offline  
Thanks from:
23-05-2013, 21:14   #9
lee taylor
Registered User
 
Join Date: May 2013
Posts: 3
i physically cleaned the tank there were very small fillngs in bottom of tank each time i cleaned it,changed both hy filters both times,got it pressure tested at pump it OK,i don't have a clue where dirt would be stuck in her i have the spool chest of cleaned and blew out i am now at a lost end
lee taylor is offline  
Advertisement
21-01-2014, 10:46   #10
Carbondrive
Registered User
 
Join Date: Dec 2011
Posts: 1
Hi Mate.
Did you ever get the digger sorted ??
Cheers,

J
Carbondrive is offline  
Post Reply

Quick Reply
Message:
Remove Text Formatting
Bold
Italic
Underline

Insert Image
Wrap [QUOTE] tags around selected text
 
Decrease Size
Increase Size
Please sign up or log in to join the discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search



Share Tweet