General Pump VK Repair Manual - Manual (Page 20)

GENERAL PUMP
A member of the Interpump Group
VK SERIES
Page 20
The HP seal must be placed in the liner with an O-ring energized seal in the operating direc-
tion of the plunger as indicated in fig. 56 and 58.
Before mounting the HP seals in their housing, they must be lubricated with OKS 1110 sili-
cone grease following the steps below:
a) The external diameter must be slightly lubricated.
b) The grease must be carefully applied on the inner diameter, paying special attention to
filling all sacs including between the lip seals as indicated in fig. 58a.
C) Insert the anti-extrusion ring (2) and the seal bushing (3) positioned as per figs. 59, 60 and 61.
The seals bushing (3) must be inserted in the liner with the discharges turned outward (cas-
ing side) as indicated in fig. 60 and fig. 61.