AC Compressor and System Oil

[big_orn]

Tractor - Zetor 6341 Super
I have just replaced the AC compressor, receiver dryer and expansion valve. After flushing the system and pulling a vacuum on the system for 4 hours, I added 150 ML of oil to the compressor and filled the system with R134a, but not sure of the amount of oil for the entire system nor the total amount of R134a.
What are the fill quantities of each?
Thanks.

 

[pratonda27]

Tractor has a decal on the lower front cab window that specifies the amount of R134a to use.
Maybe 1.8 lbs of R134a

 

[big_orn]

The decal is gone, bleached out - can't read it.