D5mxl blade lift issues

I had a new pump put on my D5mxl as the blade was not wanting to lift unless you messed with angle and tilt. When blade did come up and you set it back on ground for a minute it would do the same exact thing. We put new cat pump on and all worked well ,ran it about 3 hours then shut down for three days .Started it up on Monday and blade would not raise? Angle and tilt were slow to respond then pretty much quit working? Not sure were to start checking? Oil is up ,filters are new, no leaks?

D5mxl blade lift issues