Gardena 1471 Operating Instructions Manual - Page 4

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4. Operation

When setting up the pump for use in water :

Starting the pump :

v Plug the mains plug of the pump into a 230 V / 50 Hz alternat-

ing current socket. The pump starts.

When setting up the pump for use out of water

Pumping liquid :

1. Fill the pump to overflowing with approx. 2 l of the liquid

to be pumped (see "3. Initial Operation", "Filling the pump" ).

2. Open all possible shut-off devices in the pressure line

(watering accessories, Water Stop, etc.).

3. Drain remaining water in pressure hose so that air can escape

during the suction process.

1 m

4. Plug the mains plug of the pump into a 230 V / 50 Hz alternat-

ing current socket. The pump starts.

5. Hold the hose

above the pump until the pump begins to pump.

v If the pump has still not started pumping after 7 minutes,

unplug the mains plug (see 6. Trouble Shooting).

When using the pump for pressure intensification, the max. per-

missible internal pressure of 6 bar (on the delivery side) must

not be exceeded. The to be increased delivery pressure and the

pump pressure sum up.

• Example: pressure at the water tap 1.5 bar, max. pressure of

the GARDENA Dual Pump 5000 / 3 SGP = 3.3 bar, total pres-

sure = 4.8 bar.

5. Maintenance

The GARDENA Dual Pump is virtually maintenance-free.

6. Trouble-Shooting

Freeing the impeller :

If the impeller blocks or clogs you can remove the dirt to free

the impeller.

1. Unscrew the screw plug

a screwdriver.

2. You can now turn the impeller

shaft

screwdriver.

This will free the blocked or clogged

impeller.

3. Replace the screw plug

a screwdriver.

at the delivery side approx. 1 m vertically

using

in the casing using a

using

Problem

Probable cause

Pump runs, but the suction

Air cannot escape, since

action doesn't take place.

delivery side is closed

or remaining water is in the

pressure hose.

Pump runs when out of water

You didn't fill the pump with

but does not start pumping

any liquid before operation.

when in water

The liquid escapes over

the hose which is connected

to the delivery side during

the suction action.

Leaky or damaged suction

hose.

Leaky screw fitting at the filler

cap

Air cannot escape, since

delivery side is closed

or remaining water is in the

pressure hose.

The waiting time wasn't

observed.

Suction filter or backflow

preventer in the suction hose

clogged.

Too high suction height.

In case of any other difficulties concerning the suction action,

use GARDENA Suction Hoses with Backflow Preventer (see point

"8. Accessories") and fill in the liquid to be pumped over the filler

cap

before operation.

The specified maximum

Pump is not filled and suction

self-priming height is not

hose is not held upwards.

Remedy

v Open all possible shut-off

devices (e.g. spray nozzle)

in the pressure line, or drain

the pressure hose or dis-

connect it during the suction

action.

v Fill in liquid (see point

"3. Initial Operation").

1. Fill up the pump again (see

point 3. Initial Operation).

2. When starting operation

hold the pressure hose

approx. 1 m vertically above

the pump, until the suction

action has taken place.

v Seal the connections or

check suction hose for

damages.

Absolutely vacuum-resistant

connection is achieved by using

GARDENA Suction Hoses

(see point "8. Accessories").

v Tighten the screw fitting

(do not use pliers).

v Open all possible shut-off

devices (e.g. spray nozzle)

in the pressure line, or drain

the pressure hose or dis-

connect it during the suction

action.

v Switch on the pump and

wait max. 7 min.

v Clean the filter or the back-

flow preventer.

v Reduce suction height.

1. Fill the pump using the filler

neck until it overflows.

2. Hold the suction hose up-

wards during the self-prim

ing phase so that the liquid

you are going to pump

cannot flow out of the pump

via the suction hose.