MTU 12V4000M73 series Operating Instructions Manual page 186

Preparatory steps
u Loosen nut (2) and remove oil line (1) from
HP pump.
HP pump – Filling
1. Remove union (1).
Note: Excess engine oil runs into gear box.
2. Use fuel suction device to fill HP pump with
2 liters of clean engine oil.
3. Screw in union (1) and use torque wrench to tighten to specified tightening torque.
Name
Neck
Final steps
u
Install oil line.
184 | Injection Pump / HP Pump | MS150045/03E 2018-08
Size Type
M16x1.5 Tightening torque
Lubricant Value/Standard
40 Nm