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I have a Cat E70B (non blade model) All hydraulics work OK at low revs however, at full revs, power is lost in RH track, bucket crowd and auxillary function (bucket tilt) all else works fine?

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Posted on Jan 02, 2017

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SOURCE: Cat D6R GJB00384 Hyd over heating from tank to pump tube. All functions work fine

you might want to contact a cat repair shop and explane your problem and most likely they will help out.

Posted on Aug 30, 2012

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Pressure valve? does it only do it to only one side? Left or right. The reason you move both tracks with the bucket running is because you relieve pressure. One side is free wheeling, As they call it. I work on cars, But also have done to many hydraulic components. You have a pressure control valve that is bad.

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Paul
you have this in cars and trucks catagory and I have no idea of what car would have a hydraulic pump at front and rear
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OK AL:
SAFETY FIRST!!!!!!!!!!!!!!!
The bucket up is DANGEROUS!
Get some blocking under it before you do anything.

If it were me, I'd find a way (Winch, Crane, Other machine, ???)
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1 Answer

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Check the glo- plugs are working and check that the batteries are spinning the motor fast enough. Diesel engines need quick revs to heat the combustion air hot enough to ignite the diesel spray. If the engine is old you may need to have the injectors done as they have to atomise the fuel and not spray it in

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