43
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Wear part replacement
■ Suction valve set disassembly/assembly
NOT
E
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
