Costumer was told by a CAT man that it needs a new hydraulic pump. He wants me to just replace it.
I wonder what the Cat man's reasoning was behind that statement.?
You could tell the customer that if you replace the pump per his instructions and it does not fix the problem it's on him.
IMO a bit of diagnosis is needed before condemning the pump. The implement system is electronic over hydraulic, not a pilot system. So why if the implements work fine when the boom is raised or the bucket is dumped (same implement pump) does the problem not occur as well.? You'd think there would be more hydraulic demand when lifting than lowering the boom.
Do you have ET to enable you to look at the electronic side and eliminate that as a potential source of the problem.? If not you can access basic parameters via the upper RH dash panel in the cab.
If you need anything such as a hydraulic schematic or test & adjust documents shout out.
