4030 rockshaft squeel with 200 gal sprayer

My 4030 3 pt hitch squeels when the 200 gal sprayer is full, unless it is all the way up or all the way down. It does not when tank is partially full or with light 3 pt disk. Is there an adjustment to solve this problem?

Thanks for any help
Alvin Langford

Welcome to the forum!

My knowledge of hydraulics is that I can spell it but whenever I get that sound, it means I'm lifting something too heavy.

I'd "think" that tractor wouldn't have a problem lifting a ton. Is your sprayer sticking out far out the back or something?

The tractor lifts it and carries it fine. Just squeals when the lift is not up all the way or down all the way. I have used it in the past and it did not do this. My thoughts are if the piston seals where bad it would do it all the time when raised. Sad part is I worked at a JD dealer in the 80s but not much on the 3 pt hitches.

Thanks
Alvin