Kubota KX080-3 Workshop Manual page 547

WSM KX080-3 Service
NOTE
Oil may gush out when removing the plugs.
Turn them slowly to relieve the internal
pressure.
(1)Stop the GM motor so that the oil level check
port comes to the top and the oil drain port to
the bottom. (See the above figure.)
(2)Place an oil pan below the GM motor.
(3)To change the gear oil, remove all the three
port plugs and let out the oil. Just for adding
oil, keep the oil drain port plug intact.
(4)To add oil, remove the oil filler port and oil
level check port plugs. If the oil has been let
out, tighten the oil drain port plug.
Tightening torque:
58.8 9.8N-m (6.0 1.0kgf.m) 43.4 7.2 ft.lbs
(5)Pour gear oil through the oil filler port. Stop
pouring just before the gear oil overflows the
oil level check port.
(6)Tighten the oil level check port plug.
Tightening torque:
58.8 9.8N-m (6.0 1.0kgf.m) 43.4 7.2 ft.lbs
(7)Finally tighten the oil filler port plug.
Tightening torque:
58.8 9.8N-m (6.0 1.0kgf.m) 43.4 7.2 ft.lbs
1)
IV-S-139
Hydraulic system
2)
3)
1)Oil level check port (PF 3/8)
2)Oil filler port (PF 3/8)
3)Oil drain port (PF 3/8)