dip stick for transmission/hydralics

[worksmartnothard]

I have a J D 3320 and I'm trying to check the level of fluid for the hydraulics
and transmission. There is a yellow cap that screws off behind the tractor
but here is no stick on it to measure the level, I'm wondering if it broke off.
I had this tractor for 5 months bought it with 80 hrs. and now has 106 hrs.

 

[Tx Jim]

I think there's a sight glass back by pto shaft to check oil level. Have you considered getting & reading an operators manual?