Checking hydraulic fluid in MX4800

[NS kubota]

Can someone tell me where the hydraulic dipstick is on a MX 4800 tractor the L3901 we had, the hydraulic dip stick was around the floor board area but I don't see it on this unit. I want to hook up my hydraulic hoses for my plow blade which are dry and will need to add fluid and don't want to overfill. Thanks in advance for your input

 

[lugbolt]

I think it's under the seat, left side.

 

[scdeerslayer]

No dipstick, just a small round sight glass on the rear of the transmission case to the left of the top link bracket. Oil level should be close to the middle of the sight glass.