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14
Pump head repair
Replacing the seals of
piston backflushing
Process
Figure
1. Replace
O-rings (A) of
the piston
backflushing.
Fig. 8
O-ring of the piston backflushing
2. Screw the spe-
cial tool into
the low-pres-
sure seal (B)
and pull from
the flushing
block.
Fig. 9
Low-pressure seals of the piston
backflushing
A
B