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7.2 Electrical connection (only for electric motors)
DANGER! Danger to life!
If the electrical connection is not established properly,
there is a risk of fatal injury from an electric shock.
•The electrical connection should only be made by an
electrician approved by the local energy provider and
in accordance with the applicable regulations.
•Prior to establishing the connection, disconnect the
power supply and secure it against being switched
back on again.
CAUTION! Danger of material damage!
Dry running can destroy the mechanical seal.
•Before checking the motor's direction of rotation, fill and
bleed the pump correctly.
•Never let the pump run dry.
7.2.1 Observe the following prior to connecting
•Observe and comply with all applicable regulations.
•Disconnect the power supply and secure it against being
switched back on again.
•Make sure that the power supply complies with the data on
the data plate. The available electrical power must be suffi-
cient for the starting current (6 to 8 times the rated current).
•Keep a suitable 4-core electrical connection line ready and
observe the line diameter:
Connection voltage
TP 2802
3~230 V
4 x 1.5 mm
3~400 V
4 x 1.5 mm
•Use residual current circuit breakers (max. 30 mA) to protect
the operator.
•Use an automatic circuit breaker for the rated current speci-
fied on the data plate to protect the electric motor.
•Provide an all-pole disconnector with a minimum contact
opening width of 3 mm and fusible link.
•Make sure that the electrical connections are protected from
moisture.
7.2.2 Connecting the motor (FIG. 2)
•Open the terminal box.
•Connect the motor to the connection line as shown in FIG. 2.
Connect the cable ends firmly.
•Earth the motor as required by the regulations.
•Make sure that the cable passage is splash-proof.
•Close the terminal box firmly.
•The motor must be protected against overloading by a motor
protection switch. For a direct start, set the motor protection
switch to the rated motor current on the motor's data plate.
TP 2810
2
2
4 x 1.5 mm
2
2
4 x 1.5 mm
8. COMMISSIONING
CAUTION! Danger of material damage!
Dry running can destroy the mechanical seal.
•Before commissioning, fill and bleed the pump cor-
rectly.
•Never let the pump run dry.
Filling/bleeding the pump
•Remove the screw plug from the feed/breather hole
(FIG. 1, POS. 4).
•Fill the pump with water up to the feed/breather hole.
•Insert the plug screw in the feed/breather hole.
Checking the motor's direction of rotation
•Switch on the motor briefly and check whether the motor fan
rotates in the direction marked by an arrow on the pump hous-
ing.
•If the motor's direction of rotation is incorrect:
– Disconnect the power supply and secure it against being
switched back on again.
– Exchange the connections of two phases (FIG. 2).
Switching on the pump
•Open all valves in the system.
•Switch on the pump. The suction process can take between a
few seconds and 5 minutes.
9. MAINTENANCE
DANGER! Danger to life!
When working on electrical components, there is a risk
of fatal injury from an electric shock.
•Work on electrical components should only be carried
out by an electrician in accordance with the applica-
ble regulations.
•Prior to work on electrical components, disconnect the
power supply and secure it against being switched
back on again.
WARNING! Risk of injury!
There is a risk of being injured if rotating components
are touched.
•Prior to all maintenance work, switch off the pump and
secure it against being switched back on again.
CAUTION! Danger of material damage!
Incorrect or insufficient maintenance can damage the
combustion engine. Observe the operating instructions
for the combustion engine.
WARNING! Health hazard!
Operating supplies can damage your health or pollute
the environment.
•Always handle operating supplies with care and pre-
vent skin contact. Do not swallow!
•Always dispose of operating supplies in an environmen-
tally sound manner.
Maintenance of pumps used to pump liquids containing solid
particles.
Delivery rate and pressure are reduced if the pumping cham-
ber is too severely worn. In this case, the impeller, the diffuser,
the wear plate and in most cases also the mechanical seal
have to be replaced. It is recommended to have this work per-
formed by Salmson customer service.
Information on the maintenance work for the combustion
engines can be found in the operating instructions for the
engine.
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