19
G
A
Attention ! Disconnect
the plug from the mains
before carrying out any work
on the pump !
A turbine clogged by contamina-
tion can be released by using
a screwdriver to turn over the
turbine axle
B
(observe the arrow
on the casing indicating the direc-
tion of rotation). If this is not pos-
sible any more, the turbine space
can be cleaned by opening the
screws
9
and removing the
casing cover
0
.
The turbine
A
can be removed
if necessary, by using a screw-
driver to hold the turbine axle
B
in place while loosening the
turbine
A
with a ring spanner
at the same time.
When assembling, take care that
the parts are re-assembled cor-
responding to the sequence of
the disassembly.
Before the first frost sets in,
the pump should be drained
via the water drain screw
1
.
Store it protected from frost.
To empty the Electronic Mano-
metric Switch
5
put the rotary
switch
C
in position 2 and
open the water drain screw
1
.
10. Maintenance, Care, Storage
(ill. B / C)
.
.
GARDENA Suction Hoses
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.
.
.
GARDENA Suction Hose
Fittings (art. no. 1723 / 1724) /
Suction Filter with Backflow
Preventer (art. no. 1726 /
1727 /1728)
To equip suction hoses sold
by the metre.
.
.
GARDENA Pump
Preliminary Filter,
art. no. 1731
Recommended for pumping
sandy liquids.
art. no. 1730,
recommended
for pumping sandy liquids
and higher water quantities.
.
.
GARDENA Bore Hole
Suction Hose, art. no. 1729
For vacuum-resistant connec-
tion of the pump to boreholes
or pipe networks. Length 0.5 m.
With 33.3 mm (G 1) female
thread at both ends.
11. Recommended Accessories
Problem Probable
cause
Remedy
Pump motor runs,
Leaks at suction side.
Eliminate leak.
Suction filter at the suction hose
To adjust the flow rate of the
but delivery capacity
is totally or partly sucked free.
suction side to the delivery side,
or pressure suddenly
reduce the flow rate at the pump’s
decreases.
delivery side
G
. Observe min.
flow rate (see section 9).
Suction filter or backflow
Clean filter or backflow preventer.
preventer clogged.
Turbine clogged.
Unplug and clean the turbine
(see point 10).
Pump doesn’t deliver water.
Leaks at suction side.
Eliminate leak.
Pump switches on and off
Dirt has collected on the
1. Remove manometric switch
continuously if liquid is
impeller.
from pump.
drawn at a rate greater than
2. Return valve set to position 2.
400 l / h.
3. Rinse manometric switch
Pump doesn’t start or
No power.
Check fuses and electric connec-
suddenly stops during
tions.
operation.
Circuit breaker has cut out the
Disconnect at the mains and clean
pump because of overloading.
the turbine (refer to “ Maintenance,
Care and Storage” ). Observe
max. liquid temperature (35 °C).
Electric failure.
Send the pump to one of our
GARDENA Service Centres.
Electronic Manometric Switch
First disconnect the plug
calcified.
A
at the mains ! Then lower
the pressure, e. g. by opening
a consumer.
Decalcify the Electronic Mano-
metric Switch. Unplug it, discon-
nect the pressure hose / pressure
12. Trouble-Shooting
18
G
.
.
Don’t use the power cable
for carrying the pump or for
plugging off. Protect the
power cable from heat, oil
and sharp edges.
.
.
Please unplug the pump
after operation and before
carrying out any mainte-
nance works.
.
.
In order to avoid dry-running
of the pump, take care that
the end of the suction hose
is always submerged into
the liquid.
.
.
The temperature of the liquid
to be pumped must not exceed
35 °C.
.
.
Sand and other abrasive sub-
stances in the liquid cause
increased
wear and reduce
the pump’s output.
.
.
The pump is
not designed for
continuous operation
(e.g.
industrial application, continu-
ous circulating operation).
.
.
The minimum flow rate is
90 I / h (= 1.5 I / min). Watering
accessories with lower rate
must not be operated.
.
.
When using the pump for pres-
sure intensification, the
max.
permissible internal pressure
of 6 bar
(on the delivery side)
must not be exceeded.
The to be increased delivery
pressure and the pump pres-
sure sum up.
Example: pressure at the
water tap 1.5 bar, max.
pressure of the GARDENA
Pressure Tank Unit 4000 /4
electronic plus 4.2 bar,
total pressure 5.7 bar.
9. Operation Hints
The pump switches on and
off because of a leak. If the
pump switches on and off
more than 7 times within 2
minutes, the
control unit issues a warning
via flashing LEDs and the
motor switches itself off.
Note: The pump can only be
restarted by
“re-plugging”.
Finding Faults
Important ! Unplug the pump.
Check the pump for possible
faults such as :
➔
Faulty or leaking back-flow
preventer at the end of the
suction hose
➔
Pump and suction hose
are not filled up with the
liquid to be pumped
➔
Backflow valve switch set
to
position 2
and was not set
to
position 1
once the pump
began pumping
➔
Suction hose end is not sub-
merged into the liquid
➔
Outlet too low
➔
Suction hose or connections
are not water-tight
➔
Suction filter clogged
➔
Air cannot escape on delivery
side since release points are
closed etc.
➔
Delivery pipe or consumer are
not water-tight
➔
The pump switches on and
off because of a leak. If the
pump switches on and off more
than 7 times within 2 minutes,
the control unit issues a warn-
ing via flashing LEDs and the
motor switches itself off.
Clear the fault. Plug in the pump
in order to start again operation
of the pump.
Shouldn’t the pump start prim-
ing, although you have repeat-
edly pressed the
RESET
button,
please contact one of our
GARDENA Service Centres
(addresses you will find on the
rear side).
