Workshop Service Manual
https://www.dropbox.com/scl/fi/wibk4vn7ba1e8s3f8s9mf/Kubota_KX121-3_KX161-3_Workshop_Manual_Excavator.pdf?rlkey=gsxhk14jsd33c9tqt7lm9ewic&dl=0
WSM kx121-3 and Kx161-3
https://www.dropbox.com/scl/fi/wibk4vn7ba1e8s3f8s9mf/Kubota_KX121-3_KX161-3_Workshop_Manual_Excavator.pdf?rlkey=gsxhk14jsd33c9tqt7lm9ewic&dl=0