Suddenly lost control hydraulics. I have track power as well as blade. I noticed the cable that runs from the left hand joystick was almost broke so I disconnected it and operated it manually under floor board but no dice. The prints show a safety switch but I don’t see anything connected to the cable. even Volvo can’t figure it out. I need some help!
Good day The tracks & blade are mechanical operation, the rest rely on servo-pilot pressure. I suggest you begin with a pressure check.See attched. Kind regards Uffex
Thanks for the reply. I had just rebuild the swing valve before the trouble started. Could it be the swing Valve?
Good day Possible cause could be the check valve in the pin coupler, have you any issues when changing buckets? Kind regards Uffex
After I had my swing/slew valve rebuilt is when my controls stopped working . I only have blade and track movement now. No joy stick controls.
Good day Could you please explain what exactly was the slew rebuild? Kind regards Uffex
Seal kit and O rings. It was leaking is the reason for rebuild.
Good day I cannot see any relation to that work and loss of attachment movements, back to a servo/pilot pressure check. Be sure you have not disconnected the solenoid valve (Control lock out) Armrest Safety valve. Kind regards Uffex
OK, I really appreciate all your help. Last question where could I get one of the testing tools. Thanks again!!!
Good day Not sure what test tools you refer, control lock out you should feel movement as you switch on-off. Mesasure the pressure i would suggest a 3" 6000p.s..i gauge its good enough for checking the pressures. If you would like to go down a tool that will do load sensing Delta P we are talking electronic and more expensive. Parker example Kind regards Uffex
Did you ever figure this out?