This procedure tells you how to fill the oil in the HPU on all lathes. Most machines have a HPU oil gauge. ST-20/25 machines made in November 2015 and after have a dipstick.
Check the oil level at least (1) time a year. The oil level must show full.
Notify your HFO if you have any of these conditions:
- There is coolant mixed in the oil. You can see the coolant on the dipstick, or through the oil gauge.
- A "Low Oil Level" message shows on the display and you are on schedule for your maintenance.
Remove the HPU oil cap.
Use a funnel  and put the Mobil DTE 24 oil  into the HPU.
[A] Look at the HPU oil gauge . Make sure the oil is filled to the top of the HPU oil gauge .
[B] Remove and examine the dipstick . Make sure the HPU is full of oil. The HPU is full if the oil reaches the mark on the dipstick .
Install the HPU oil cap.