41 - Service and maintenance -
9. Inner Sealing: Use the same procedure
as described in the two photos before.
10. Insert the gasket (34) and slide on the
housing. Always carefully tighten the
screws crosswise.
11. Fit for GP 50 pumps 1 felt ring respec-
tive for GP 40 pumps 2 felt rings (78.5)
and assemble part 78.
12. Lightly oil the grooves of the intermediate
rings.
13.
14.