11
Pump head repair
Disassembling the pump head
CAUTION!
Avoid breaking the piston rods! Before disassembly, first
remove the two piston rods.
Deposit the two piston rods in the correct orientation to
ensure correct orientation when putting them back in.
A Capillary screw fitting
B Seal ring
C Capillary connection kit
D Inlet screw fitting
E Ball
valve
F Seal
G Outlet screw fitting
H Capillary connection kit
I Feed
block
J High-pressure
seal
K Sapphire ring
L Adaptor
ring
M Support ring
N O-ring
O Piston backflushing
P Low-pressure seal
Q Washer
R Compression spring
S Bushing
T Piston guide
U Screw
V Piston rod
Fig. 2
Rear view of a complete pump head
H
G
F
E
I J K L MN
O P Q R S T U V
D
B
A
C
Flussrichtung