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●
Dropping or subjecting the
pump to strong impact, fail-
ure may result.
Handle the pump with care.
●
The pump can not start with
full discharge/suction pres-
sure or full liquid. Remove
pressure or liquid before
operation.
●
After a long period of stop-
page, pump performance at
the beginning of operation
becomes occasionally unsta-
ble. In this case, warm the
pump up for 10 minutes with
no discharge line pressure.
●
Always use a suction valve
to adjust an air/liquid flow.
●
If the compressed air or
liquid (higher pressure
than atmospheric pres-
sure) is transferred to the
pump, sharp deterioration
to the lives of the valves,
diaphragm and bearing
may result. The suction line
pressure should be equal
to atmospheric pressure or
vacuum pressure.
●
Do not use solvents such as
benzine, alcohol, thinner for
maintenance or cleaning,
otherwise a coat discolours
or comes off.
1. Before operation
Suction pressure
Suction valve
No load operation
Keep a discharge
valve full open.
↓
↓
Suction valve
Do not apply suction line
pressure
↓
Operation
