Retsch DM 400 - Manual (Page 50)

Servicing
50
5. Hold a flat container underneath the oil drain plug (n) and un-
screw this using an Allen Key No. 5 until oil flows out.
6. Allow all of the oil to drain from the gearbox (approx. 0.22 l).
Watch the size of the collecting container and empty at intervals
where necessary, screwing the oil drain plug back in to do so.
7. When the gear oil has been completely emptied, remove the oil
drain plug!
8. Wipe any spilt gear oil with a paper towel and clean the contact
surface of the oil drain plug.
9. Screw the oil drain plug with washer tight again.
10. Assemble the motor securing screw again
11. The fill screw (o) is then removed!
12. Place a funnel in the hole and fill the gearbox with 0.22 litres of
gear oil ISO VG 220.
13. Screw the fill screw (o) with clean sealing ring tight again.
14. Assemble the housing cover.