john deere 6675 skid steer

[br]

1st timer on this site. I need some help with my 1996 deere. I purchase this with a crack in left side hydraulic drive motor casing. Everything functioned fine but obviously it leaked pretty good. So I have a new drive motor for it and before I install it I would like to drain/flush hydraulics for contaminates. I do not have a service manual and everything I find online says the hyd. tank has a drain plug in which it does not or if it does you can't get to it from the bottom. Has anybody out there have experience in draining this particular machine? The tank looks almost impossible to take out without going as far as removing the engine. Is there other parts of the hyd. system that needs to be addressed? Does anyone have or can make a copy of a real service and repair manual for this machine? John deere says discontinued and can't get. Any help would surely be appreciated.

 

[Tazza]

Sadly, very few have drain plugs for the hydraulics. Personally i pump it out my aux hydraulic lines into a drum while running at idle. When it starts to spit, shut it down and re-fill.
If it's really contaminated, you keep doing this till the oil is the right colour. Run it for a while after every fill process to move the oil around by lifting, tilting and driving.
As yours is just a crack, and if the oil isn't white, jusr drain it and re-fill.