Vacuum pump system SCC 950
Servicing
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
43
3. Head 1 (Fig. 21/
I
):
Use a pencil to apply a single mark (
M
) across the head plate,
intermediate plate, and compressor housing.
4. Head 2 (Fig. 21/
II
):
Use a pencil to apply two marks (
M
) across the head plate, in-
termediate plate, and compressor housing.
5. Head 3 (Fig. 21/
III
):
Use a pencil
to apply three marks (
M
) across the head plate, in-
termediate plate, and compressor housing.
6. Head 4 (Fig. 21/
IIII
):
Use a pencil to apply four marks (
M
) across the head plate, in-
termediate plate, and compressor housing.
During re-assembly, refer to the marks on the individual
heads to ensure that the parts are properly re-assembled.
7. Undo the 16 attachments screws (Fig. 19/
2
) on the heads (
1
to
4
) and remove the heads (
1
and
2
as well as
3
and
4
).
8. Pull apart heads 1 (Fig. 22/
I
) and 2 (
II
) and heads 3 (
III
) and 4
(
IIII
) and remove O-rings (
4
).
Fig. 22: Removing the O-rings
9. On all four heads, undo the head screw (Fig. 23/
1
) in the head
plate (
3
) and remove head plate from the intermediate plate
(
7
).
