L3400 hyro leak and question

[StrangeRanger]

Hi all,
Going to double check tonight but I think I've got a leaky suction line that seems to be a "common" issue on the L3400/2800's. The culprit is part #TC220-33332.
But my question is would a small leak like that cause the level in the sight glass to drop to like nothing? But then it comes back to full after I shut the tractor off and it sits for a minute.
Does it do that because it's sucking air? I noticed a tiny tiny bit of bubbles in the site glass.
Your thoughts?
j

 

[Chilly807]

Mine does the same thing. I just recently replaced the suction line and the results are exactly the same as before. My level stays relatively constant in the sight glass, however.

Sean

 

[StrangeRanger]

Yup, hoes was blowed out right at the bend. What a silly design. Why would they not use a metal pipe?