7753 with intermittent HP-2 warning

[dirt ditch]

7753's Bobcat brand hydraulic fluid level is right in the middle of the dip stick at start up. The dip stick is not showing any sign of the machine useing fluid. It runs fine for a while then I get a HP-2 warning with audible beep. Any help is appreciated.

 

[SSdoxie]

HP-2 is Hydraulic Pressure Warning (low). This is on the charge pressure circuit going into HST pump. Filter may be getting restricted. Try changing it if you haven't already done so. Charge pressure relief spring getting weak? Relief can be adjusted with shims.

Hydrostatic pump could be getting worn but if machine drives fine, has plenty of power to the wheels, I wouldn't panic. Try 1 or both of the above.

 

[dirt ditch]

I have owned it for a year and have not changed the hydraulic filter yet so will do that first. If that does not solve the problem I will check the relief spring. It does drive ok and seems to have good power to the wheels. Thanks