General Pump HE - Manual (Page 12)

GENERAL PUMP
A member of the Interpump Group
HE SERIES
Page 12
In order to replace the pressure packings (3, Fig. 16)
loosen and remove the packing support (1, Fig 16) from
the cylinder (2, Fig 16.)
Remove the scraper (1, Fig. 17) and relevant o-ring
(2, Fig. 17) from the packing support. Pressure packings
and o-rings should always be replaced at every
disassembling of the pump.
In order to fit the scraper in place, shape it manually as
shown in Fig. 18.
VERY IMPORTANT! The scraper is provided with an
internal lip which performs the correct scraping effect
only if oriented towards the fluid end. See window
inside Fig. 18.
Before reassembling the pump unit carefully clean the
pressure packing seat in the packing supports, fit in place
the packing ring (1, Fig. 19) and then the pressure
packings (2, Fig. 19). A little bit of grease helps when
sliding the packings into the packing support.