WATER PUMP OPERATOR’S MANUAL
OPERATION
CONNECTING THE HOSES
NOTE: Always use a commercially suitable hose and hose connector with the hose clamp provided with
the pump. The suction hose must be reinforced with a non-collapsible wall or braided wire construction.
Do not use a hose smaller than the pump’s suction port size. Minimum hose size:
TM530-050
50mm (2”)
TM530-250
50mm (2”)
TM530-080
80mm (3”)
The suction hose should be no longer than necessary. Pump performance is best when the pump is
near the water level and the hoses are short.
Use a hose clamp to securely fasten the hose connector to the suction hose in order to prevent air
leakage and loss of suction. Verify that the hose connector sealing washer is in good condition prior to
connection.
Install the strainer (provided with the pump) on the other end of the suction hose and secure it with a
hose clamp. The strainer will help to prevent the pump from becoming clogged or damaged by debris.
Securely tighten the hose connector on the
pump suction port
Connect the discharge hose by tighten the
hose clamp securely to prevent the discharge
hose from disconnecting under pressure.
PRIMING THE PUMP
Before starting the engine, remove the filler cap from the pump chamber, and completely fill the pump
chamber with water. Reinstall the filler cap, and tighten it securely.
NOTE: Operating the pump dry will destroy
the pump seal. If the pump has been
operated dry, stop the engine immediately,
and allow the pump to cool before priming.
12
SUCTION HOSE INSTALLATION
Use a commercially available hose and hose connector with the hose clamp provided with
the pump. The suction hose must be reinforced with a non-collapsible wall or braided wire
construction.
Do not use a hose smaller than the pump’s suction port size. Minimum hose size:
DS
20-1
= 2 in (5
0
mm)
；
DS
30
= 3 in (8
0
mm)
；
DS
40
= 4 in (1
00
mm)
；
The suction hose should be no longer than necessary. Pump performance is best when the
pump is near the water level, and the hoses are short.
Use a hose clamp to securely fasten the hose connector to the suction hose in order to
prevent air leakage and loss of suction. Verify that the hose connector sealing washer is in
good condition.
Install the strainer (provided with the pump) on the other end of the suction hose, and
secure it with a hose clamp. The strainer will help to prevent the pump from becoming
clogged or damaged by debris.
Securely tighten the hose connector on the pump suction port.
SUCTION HOSE
HOSE CLAMP
STRAINER
HOSE CLAMP
HOSE CLAMP
HOSE CONNECTOR (COMMERCIALLY AVAILABLE)
SUCTION HOSE
HOSE CONNECTOR
(COMMERCIALLY
AVAILABLE)
HOSE CLAMP RING
HOSE COUPLER
SEALING WASHER
SUCTION PORT
13
DISCHARGE HOSE INSTALLATION
Use a commercially available hose and hose
connector, and clamp provided with the pump.
It is best to use a short, large-diameter hose,
because that will reduce fluid friction and improve
pump output. A long or small-diameter hose will
increase fluid friction and reduce pump output.
Tighten the hose clamp securely to prevent the
discharge hose from disconnecting under pressure.
PRIMING THE PUMP
Before starting the engine, remove the filler cap from
the pump chamber, and completely fill the pump
chamber with water. Reinstall the filler cap, and
tighten it securely.
Operating the pump dry will destroy the pump seal. If the pump has
been operated dry, stop the engine immediately, and allow the pump
to cool before priming.
HOSE CONNECTOR
HOSE CLAMP
DISCHARGE HOSE
PRIMING WATER FILLER CAP
6
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