General Pump VF Repair Manual - Manual (Page 15)

GENERAL PUMP
A member of the Interpump Group
VF SERIES
The H.P. seal must be inserted into the liner with the o-ring in the plunger working direction as
shown in fig. 34 and 36.
Before inserting them into their seats, the H.P. seals must be lubricated with silicone grease,
type OKS1110, following the operations listed below.
a) The external diameter must only be slightly greased.
b) On the internal diameter, grease must be applied paying great attention to filling all the
pockets between the sealing lips as shown in fig. 36a.
Page 15
F) Insert the H.P. packing; considered the slight interference between the seal and the liner, to
avoid damage we advise using the appropriate tool (p/n 27508400 and p/n 27365300) as
shown in fig. 34 and 35.