Gardena 1774 Betriebsanleitung - Seite 8
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Pump motor runs, but quantity
delivered or pressure fall away
suddenly.
Pump switches on and off too
frequently.
Top up the air in the
storage tank:
CAUTION !
If any other faults occur, please contact GARDENA Service.
8. Accessories
GARDENA Suction Hoses
GARDENA Suction Hose Fittings
GARDENA Suction Filter
GARDENA
Pump Preliminary Filter
GARDENA
Bore Hole Suction Hose
Leak on the suction side.
Too little water on intake side.
Suction filter or non-return valve
blocked.
Boiler diaphragm is damaged.
Pressure in the boiler is too low.
The pressure in the storage tank must be approx. 1.5 bar.
To top up the air, an air pump/tyre pump with a pressure gauge
(manometer) is required.
©
1. Unscrew the protective cover
2. Attach the air pump/tyre pump to the boiler valve
air in until the air pump/tyre pump pressure gauge shows
approx. 1.5 bar.
3. Screw the protective cover
©
Work on the electrical parts must only be carried out by
GARDENA Service Centres.
Kink- and vacuum-resistant, sold by the metre with 19 mm (3/4")
or 25 mm (1") diameter without fittings or in fixed length,
complete with fittings.
To equip suction hoses with
Backflow Preventer sold by the metre.
Recommended for pumping
sandy water.
For vacuum-resistant connection
of the pump to boreholes or pipe
networks. Length 0.5 m. With 33.3 mm
(G1) female thread at both ends.
➔ Repair the leak.
➔ Throttle the pump on the
pressure side so that the flow
quantity on the suction side
is governed by that on the
pressure side.
➔ Clean the suction filter/non-
return valve.
➔ Have the boiler diaphragm
replaced by GARDENA
Service.
➔ Top up the air in the storage
tank.
.
back on.
• Art. no. 1723/1724
• Art. no. 1726/1727/1728
• Art. no. 1730/1731
• Art. no. 1729
and pump
17