48
Wear part replacement
■ Suction valve set disassembly/assembly
NOTE
Be careful not to drop the valve set.
Remove the fitting nut and the suction tube.
NOTE
Wash out residual liquid or substances.
Remove the fitting by an adjustable wrench
or a spanner.
Pull out the valve set from the fitting by a pair of tweezers.
Place a new valve set into the fitting. Hand-
tighten the fitting into the pump head as far
as it will go. Retighten it by a further 1/4 turn
with an adjustable wrench or a spanner.
*
Be careful not to misarrange the valve set or place
upside down. Otherwise, leakage or flow rate
reduction may result.
*
Do not forget to fit O rings and gaskets.
*
Keep the valve set free from dust or foreign mat
-
ters.
Reconnect the suction tube.
1
2
Suction tube
Fitting nut
Fitting
Valve set
Fitting
12
13
9
11
10
9
11
10
2
3
4
5
