Johnson Pump TG GS2-25 - Guidelines for Assembly; Transport of Pump Unit; Foundation Pump Unit; Variators, Gear Box, Gear Motors, Motors

35
A.0500.501 – IM-TGGS/05.01 EN (03/2013)
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qualied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sufcientlyhighstartingtorqueforfrequency-controlledmotorsandadequate
cooling of the motor at low speeds. If necessary, install a motor with forced ventilation.