hydraulic line pressure

   / hydraulic line pressure #1  

lakespirit

Silver Member
Joined
Jul 9, 2006
Messages
244
Location
Idaho Panhandle
Tractor
2004 KAMA TS254C
It seems my Koyker 140 loader doesn't have enough pressure to raise the bucket. Is there an adjustment to increse pressure?
 
   / hydraulic line pressure #2  
if it is as cold as you said wouldnt that be the problem?
did you let it warm up plenty?
 
   / hydraulic line pressure
  • Thread Starter
#3  
I run ATF in my system, expensive, but does not gel, or even thicken well below zero. I was running earlier in the day and the loader was operating OK. Do you have any other thoughts?
 
   / hydraulic line pressure #4  
If you have QD's (quick disconnects) unhook and rehook. One may be slightly offseated.
 
   / hydraulic line pressure #6  
I run ATF in my system, expensive, but does not gel, or even thicken well below zero. I was running earlier in the day and the loader was operating OK. Do you have any other thoughts?
ATF is not recommended in Chinese tractors, it can decompose seals and gaskets. You may have clogged the hydraulic filter. It's in that horizontal cylinder looking thing on the left side of the hydraulic sump

//greg//
 
   / hydraulic line pressure
  • Thread Starter
#7  
OK, so which Hyd fluid should I use? AW32, or something even less viscous for my weather?

Any way to increase presuure?
 
   / hydraulic line pressure #8  
OK, so which Hyd fluid should I use? AW32, or something even less viscous for my weather?
Any way to increase presuure?
Well, apparently you didn't read http://www.mehf.com/FLasia01muladvantages.pdf because you would have picked up on using the multi-vis hydraulic oil. It outperforms the monograde oils, particularly in cold climates. Your weather is not exceptional by comparison. When you chose a hydraulic oil, make sure it is labled AW Hydraulic Oil and not AW Machine Oil, R&O Oil, etc. Give it a chance to warm up before you use it.

You state that you want to increase pressure. What is your current pressure that you wish to exceed? Do you know that by increasing pressure you can take your FEL beyond design limits and break something - including yourself?
 
   / hydraulic line pressure
  • Thread Starter
#9  
Well, I did read it, but didn't see any recommendation for a multi-vis AW hyd oil. I have never seen multi-vis hyd oil. In days past 15w/40 oil was used in most all applications in the gold mines of NV where it's cold.
 

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