Gebhardt Anlagentechnik EHA40, Translation Of The Original Operating Manual

Page: 68 / 152

Maintenance
Original operating manual for oil-fired pasteurizers EHA40, EHA66, EHA90 68 of 147
16.02.2021 English
10.5 Description of the inspection and servicing work
Change impeller and seals of the juice pump (11)
Tool required: Double-ended spanner (10 mm)
- Loosen the screws (22) and take off the lid (23).
- Remove the first seal (24).
- Pull the impeller housing (26) and the impeller (25) off the
pump shaft.
- Now you can remove the second seal (24) and the shaft
seal (27) and replace them with new seals. To change
the shaft seal, the feather key on the shaft must be
temporarily removed.
- Press the new impeller (25) into the impeller housing (26)
and push it onto the pump shaft after reinserting the
feather key.
- Insert a further new seal (24) into the impeller housing
(26).
- Then reattach the lid to the pump using the two screws
(22).
Change oil filter and oil filter unit (14)
Tool required: Water pump pliers
- Loosen and remove the coupling nut on the sight glass
(28).
- Remove the oil-filled sight glass (29) downwards.
- Remove the oil filter (30) by turning it to the left.
- Insert a new oil filter (30) and remount the
sight glass (29) onto the oil filter unit (14) using
the coupling nut (28).
23
22
27
24
25 26
30
28
29