2002 773g case drain filters

[bullwinkle]

Going to change my case drain filters this spring and have a few questions. Good time to change the hydraulic oil. Is there a drain plug under the reservoir on this model accessible thru the side plate of do I have to use a transfer pump? Can I only hope to remove the oil in the reservoir as some will still be in the lines and then fill back up after? Thanks......BW

 

[Tazza]

The way i do it is to run the machine at idle, hook up a line to the aux hydraulics and let the pump drain it out till it starts to spit and shut down, re-fill and replace the filters.