Gardena 1471 Operation, Maintenance, Trouble-Shooting, When setting up the pump for use in water

G

4. Operation

When setting up the pump for use in water:

		G
Problem	Probable cause	Remedy
Pump runs, but the suction	Air cannot escape, since	v Open all possible shut-off
action doesn’t take place.	delivery side is closed	devices (e.g. spray nozzle)

Starting the pump:

vPlug 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

or remaining water is in the	in the pressure line, or drain
pressure hose.	the pressure hose or dis-
	connect it during the suction
	action.

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

Pump runs when out of water but does not start pumping when in water

You didn’t fill the pump with	v Fill in liquid (see point
any liquid before operation.		“3. Initial Operation”).
The liquid escapes over	1.	Fill up the pump again (see
the hose which is connected		point 3. Initial Operation).
to the delivery side during	2.	When starting operation

5

1 m

during the suction process.

the suction action. hold the pressure hose

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 5 at the delivery side approx. 1 m vertically above the pump until the pump begins to pump.

vIf 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

approx. 1 m vertically above

the pump, until the suction action has taken place.

Leaky or damaged suction	v Seal the connections or
hose.	check suction hose for
	damages.
	Absolutely vacuum-resistant
	connection is achieved by using
	GARDENA Suction Hoses
	(see point “8. Accessories”).
Leaky screw fitting at the filler	v Tighten the screw fitting
cap 7.	(do not use pliers).
Air cannot escape, since	v Open all possible shut-off
delivery side is closed	devices (e.g. spray nozzle)
or remaining water is in the	in the pressure line, or drain
pressure hose.	the pressure hose or dis-
	connect it during the suction
	action.
The waiting time wasn’t	v Switch on the pump and
observed.	wait max. 7 min.
Suction filter or backflow	v Clean the filter or the back-
preventer in the suction hose	flow preventer.

Freeing the impeller:

8

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

1.Unscrew the screw plug 8 using a screwdriver.

2. You can now turn the impeller	9
shaft 9 in the casing using a
screwdriver.
This will free the blocked or clogged
impeller.

3.Replace the screw plug 8 using a screwdriver.

	clogged.
	Too high suction height.	v Reduce 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 7 before operation.
The specified maximum	Pump is not filled and suction	1. Fill the pump using the filler
self-priming height is not	hose is not held upwards.	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.

14 15