540B blade chatter

[Caseystree]

After it's been sitting a while blade chatters bad almost air bound until you use it for a while it gets better 

[BurkettvilleBob]

I think that's pretty normal on old stuff. I assume it's losing pressure or the fluid is draining back while it's  sitting? Nobody wants to buy that thing eh? I talked to you about it awhile ago, I'd just looked at Justin's.

[C5C Tree Farmer]

It sounds like the transmission oil pump is getting weak. This pump provides oil to the crankshaft driven hydraulic pump mounted on the front side of the motor.