General Pump KEZ Repair Manual - Manual (Page 9)

Page 9
GENERAL PUMP
A member of the Interpump Group
KEZ SERIES
2.2 Fluid End Repair
2.2.1 Disassembly of the head - valve units
Service operations are limited to valve inspection or replacement if needed.
To extract the valve units proceed as follows:
A) Unfasten the 7 M12 x 35 valve cover screws, and remove the cover (fig. 12).
B) Remove the valve plugs with an M6 threaded bolt (fig. 12).
C) Remove the valve assemblies with a pliers to grab the valve cages (fig. 12).
Should excessive scaling stick the valve seats down in the manifold (for example after
inactivity for long period) then the use of the extractor tool #F26019400 is recommended
(see fig. 12a).
fig. 12
fig. 12a