Guidelines For Assembly; Transport Of Pump Unit; Foundation Pump Unit; Variators, Gear Box, Gear Motors, Motors - Johnson Pump TG GS2-25 Instruction Manual

3.18.9 Guidelines for assembly

When a bare shaft pump is delivered, the assembly with drive is the responsibility of the user.
The user also must provide all necessary devices and equipment allowing a safe installation and
commissioning of the pump.

3.18.9.1 Transport of pump unit

• Prior to lifting and transporting a pump unit, make sure that the packaging is of sturdy enough
construction is and will not be damaged during transport.
• Use crane hooks in the base plate or the frame. (See chapter 1.0.)

3.18.9.2 Foundation pump unit

The pump unit must be installed on a base plate or on a frame placed exactly level on the founda-
tion. The foundation must be hard, level, flat and vibration free in order to guarantee the
alignment of pump/drive while operating. (See section 3.18.2.5)

3.18.9.3 Variators, Gear box, Gear motors, Motors

Consult the supplier's instruction manual , included with the delivery. Contact the pump supplier if
the manual is not included.

3.18.9.4 Electric motor drive

• Before connecting an electric motor to the mains check the current local regulations of your
electricity provider as well as the EN 60204-1 standard.
• Leave the connecting of electric motors to qualified personnel. Take the necessary measures
to prevent damage to electrical connections and wiring.
Circuit breaker
For safety work on a pump unit, install a circuit breaker as close as possible to the machine. It also
is advisable to place an earth leakage switch. The switching equipment must comply with current
regulations, as stipulated by EN 60204-1.
Motor overload protection
To protect the motor against overloads and short-circuits a thermal or thermo-magnetic circuit
breaker must be incorporated. Adjust the switch for the nominal current absorbed by the motor.
Connection
• Do not use a star-delta circuit with electric motors due to the required high starting torque.
• For single-phase alternating current, use motors with a "reinforced" starting torque.
• Ensure a sufficiently high starting torque for frequency-controlled motors and adequate
cooling of the motor at low speeds. If necessary, install a motor with forced ventilation.
A.0500.501 – IM-TGGS/05.01 EN (03/2013) 35