B2660 hydro fill plug keeps popping out

[SCOOBY14B]

Tractor has around 250 hours.

Whenever I work the tractor hard, the hydro fluid plug near the 3 point pops off. Changed the hydro fluid about 30 hours ago.

 

[Leejohn]

The vent is stopped up. See if I can tell you where it's at. Where your 3pt upper lift arm goes thru the rockshaft housing,just above them a little to the left looking from the back. It's higher then the fill plug and on the left side. Also make sure you are not overfilled.

 

[Leejohn]

I told you last night where the vent was and i was a little off. It's right in the middle behind the top link where it hooks to the tractor. It's looks like a red cap.