EN
2.
Lower pump to the bottom of the
fluid container. Use a strong rope,
fastened to the cable eye, to lower
the pump.
The pump can also be operated
when suspended by a rope.
6.1 Switching ON and OFF
After connection to the mains, the sub-
mersible pump is automatically switched
ON and OFF by the float switch:
x
It starts pumping when the fluid has
lifted the float switch fully
(8)
.
x
The pump switches OFF when the
float switch has fallen down
(9)
.
The cable for the float switch can be
moved in the cable holder
(10)
to adjust
the distance between the switching ON
and OFF positions:
x
Float switch on a "short cable": the
On and OFF positions are close
together.
x
Float switch on a "long cable": the
On and OFF positions are wide
apart.
A
Caution!
The float switch must be able
to move in such way that the pump
can not run dry.
6.2 Pump characteristic
curve
The pump characteristic curve shows
which pump capacity is possible in
dependance on the delivery head.
x
Float switch does not switch the
pump ON.
Ensure there is a sufficient water
supply.
Make sure the float switch can
move unrestricted.
6. Operation
10
8
9
7. Care and Maintenance
A
Danger!
Prior to all servicing:
Switch Off.
Unplug.
Service and repair work other than
described here must be left to quali-
fied specialists.
7.1 Periodic maintenance
For the pump to function perfectly at any
time periodic maintenance is required.
This also applies if the pump is used
under heavy conditions, but does not run
for extended periods of time (e.g. when
used in well drains):
Yearly service
1.
Check pump casing, cables and
float switch for damage.
2.
Rinse pump with clear water.
Remove persistant soiling, e.g.
algae desposits, with brush and
dishwashing liquid.
3.
To flush the inside of the pump,
place it into a container filled with
clear water and switch ON briefly.
7.2 Pump storage
A
Caution!
Frost damages the pump and
accessories, as both always contain
water!
x
When there is danger of freezing
remove pump and accessories and
store at a frost-proof location.
8.1
Fault finding
Pump does not run:
x
No mains voltage.
Check cables, plug, outlet and
mains fuse.
x
Mains voltage too low.
Use only extension cables with
sufficient lead cross section (see
"Technical Specifications").
x
Motor overheated, motor protection
relay tripped.
Remove cause for overheating
(fluid pumped too hot? Pump
blocked by foreign objects?)
After cooling off the pump will
switch ON again.
SPG 20
502 DR
SPG
27502 DR
SPG
31502 CDR
8. Trouble Shooting
A
Danger!
Prior to all servicing:
Switch Off.
Unplug.
Motor hums but does not start:
x
Pump blocked by foreign object.
Clean pump.
Pump does not pump properly:
x
Delivery head too high.
Observe max. delivery head (see
"Technical Specifications").
x
Discharge hose kinked.
Straighten discharge hose.
x
Discharge hose leaky.
Seal discharge hose, tighten
screw fittings.
Pump runs very noisily:
x
Pump primes air.
Ensure there is a sufficient water
supply.
Adjust float switch correctly.
Hold pump at an angle when sub-
merging.
Pump runs continuously:
x
Float switch does not reach lower
position.
Make sure the float switch can
move unrestricted.
4
SPG
18502 CDR
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