18
Pump head repair
CAUTION!
It is important that the washers are positioned flat, as any til-
ting will shorten the pump head service life.
Intermediate result
The pump head is ready to be screwed together.
Positioning the
washers flat, compres-
sion springs, bushings
Process
Figure
The springs for the pis-
ton guide can be positi-
oned on the feed block
and piston backflus-
hing, which have been
put together.
1. Positioning the
washers (A) flat
2. Position compres-
sion springs (B).
3. Position the bus-
hings (C) in the cor-
rect orientation.
Fig. 16
Piston backflushing with
washers
Fig. 17
Compression springs with
bushing
A
A
B
