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Need help on changing hydro oil on 3400 pumps.

902 views 3 replies 3 participants last post by  wildstarblazer 
#1 ·
I have the new ferris stander with 3400 transaxle pumps. Getting to the filters was a task in itself but I can't get to the vent port to bleed the air. They are located on the top of the pump conveniently blocked by just about everything. I have to hunt for a special hex wrench that can bend around and up to get to this thing. Why they make it like that is beyond me.

Anyway, is there another way to bleed the air out of the system to accept the new oil??
Or is there a tool that someone may know about that can get to the ports?

Any help is appreciated..
 
#2 ·
Have you tried a 3/8 drive with a universal swivel with extensions and the right allen bit?I have heard some have filled the 3400 without removing the plug but its a very slow process,2 quarts per hydro is considered full then there the hose to fill and expansion tank.
 
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