7840 noises

[iwa]

Anybody fit to tell me why the 2 steel pipes come to and from the spool bank vibrate ? Hydraulic pump seem to be pumping/groaning at high idle with the 2 spools in float ?

 

[Lincs Lass]

Does the hydraulic filter need changing which will make the pump work harder

 

[iwa]

Changed filters but still no difference.... tractors a sle special 7000hrs forgot to say