Shindaiwa GP3410 Owner's Manual

5

Prior to Assembly

Before assembling this unit, make sure 

you have all the components required for 

a complete unit:

GP340 engine-driven pump
Spark plug wrench

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Assembly

Spanner
3mm Hex Wrench
4mm Hex Wrench

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Install the Suction and Discharge Hoses

Assemble a barbed hose fitting, ring 

nut, and gasket as shown, and thread 

the completed hose fitting assembly 

onto the pump suction port. Assemble 

the remaining hose fitting to the pump 

discharge port.
Push a .0" suction hose (not provided) 

over the suction hose fitting on the pump 

body, and secure with a .0" hose clamp as 

shown. Working at the opposite end of the 

suction hose, use a second .0" hose clamp 

to install and secure the suction strainer.
Submerge the suction hose strainer in 

the water source. For maximum per-

formance, avoid placing the strainer 

directly in heavy accumulations of 

leaves, silt, or other debris.

.

.

3.

IMPORTANT!

Place the pump as close to the water 

source as possible. Increases in suction 

lift will lower pump performance. Do not 

exceed maximum suction head of 6 feet.

CAUTION!
This pump is intended for pumping 
fresh water only.

Ingested debris can damage the 
pump impeller and seals.

Never operate the pump if the 
strainer is missing or damaged. 

Install the discharge hose (not pro-

vided) and secure with the remaining 

.0" hose clamp.
Recheck that both the suction and dis-

charge hoses are free from obstruc-

tions, and that all connections are 

tightly secured.

4.

5.

Parts bag including:

.0" hose clamps (3 each)

hose fittings and gaskets ( each)

strainer

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Priming

Before the pump can develop suction 

or “lift” at the water source, the pump 

impeller must first be primed by filling 

the pump housing with water. Once the 

GP340 has been primed, additional prim-

ing should be required only if the pump 

has been drained or otherwise emptied.

Remove the filler plug at the top of the 

pump housing. Use care not to lose the 

sealing ring beneath the filler plug.

.

CAUTION!
Never allow the pump to run dry! 
Operation without water can perma-
nently damage the pump seals.

Fill the pump housing through the 

priming port (Figure ) with clean 

water until water overflows from the 

filler plug hole on the pump body.
Replace and securely tighten the filler 

plug. 

.

3.

IMPORTANT!

A damaged or missing filler plug seal may 

allow air to leak into the pump housing. 

Air leakage can lower performance!