General Pump KF Owner Manual - Manual (Page 15)

GENERAL PUMP
A member of the Interpump Group
D) To Reassemble the valves proceed the
other way around, and tighten the cover
screws with a torque wrench. The table
on page 17 contains the screw tightening
torque values and Fig. 25 indicates the
sequence.
11.2.2 Seals
The replacement of the seals is necessary when water
drips through the holes provided on the crankcase.
For replacement, do as follows:
A) Remove the fluid end by loosening the 8 bolts (see
Fig 22).
KF SERIES
Page 15
11.2 Fluid end maintenance
11.2.1 Pump head
The fluid end does not require periodical maintenance.
Service operations are limited to the component
inspection and/or replacement, when necessary.
Valve Units:
A) Loosen the valve cover screws.
B) Extract the valve plugs with an extractor or a M8
threaded rod.
C) Extract the valve unit with the same tool
See Fig. 19)
Valve components of each valve unit are pressed
together and therefore they can be easily replaced and
installed back in place by means of simple tools.
Check the components for wear and replace if necessary.
Replace all o-rings of the valve units and plugs, at
each inspection.
IMPORTANT NOTE:
BEFORE REPOSITIONING THE
VALVE UNITS AND O-RINGS CLEAN
AND PERFECTLY DRY ALL VALVE
HOUSINGS INSIDE THE FLUID END.