Service instruction
K 101, K 151, K 200, K 250, K 300(M50 Motors)
K 101/151/200/250/300.58.0404.Eng/Digital
Page 1: ...Service instruction K 101 K 151 K 200 K 250 K 300 M50 Motors K 101 151 200 250 300 58 0404 Eng Digital ...
Page 2: ...ng 8 Disassembling the Cooling Jacket 8 Disassembling the Impeller 8 Disassembling the Seal Cartridge 8 Changing the Stator Unit 8 Disassembling the Stator 9 Disassembling the Rotor and Bearings 10 Assembling Mounting 10 Mounting the Bearings 10 Mounting the Rotor in the Oil Housing 11 Mounting the Stator 11 Mounting the Seal Cartridge 11 Mounting the Impeller 12 Mounting the Cooling Jacket 12 Mou...
Page 3: ...h a suction pipe The pump is supported by an adjustable fabricated steel stand mounted at the factory The height of the stand is sufficient for the standard suction elbow to be used on a flat floor The pump volute is drilled or threaded on the connection flange and equipped with studs on the suction flange The motors are equipped with a maintenance free internal closed loop cooling system Type P W...
Page 4: ... entitled Safety must be observed When performing any work appropriately sized and adequately dimensioned hoists and other tools should be used Do not work under a suspended load Before doing any maintenance or repairs to the pump make sure that it is isolated from the power supply and ensure that no one can reconnect it while being worked on Never move or lift a pump by using the cable If the pum...
Page 5: ...p with as little energy as possible which in turn helps to reduce the operating costs Points to be Observed 1 Choose a pump that has the best efficiency and the duty point should be as near as possible to the best efficiency 2 Do not choose a pump that is too big 3 Adjust the wear ring against the impeller when the flow significantly decreases 4 Change the parts if it is not possible to adjust the...
Page 6: ... g Enerpar M002 or Similar Oil Amount 4 dl 0 9 US pints F T P installation 5 dl 1 1 US pints H installation Remove the plug marked oil out and slant the pump slightly forward Let the old oil pour out through the groove under the plug Then loosen the plug marked oil in to facilitate the oil draining out Gather the old oil in the can Fasten the plug so that the lower not the top O ring gasket become...
Page 7: ...lug down on the cooling plate Open the plugs on top of the cooling jacket and let the old water pour out into a can Replug the lower plug on the cooling plate Slowly fill the new cooling liquid into the hole marked in on top of the cooling jacket Let both plugs on the top open to avoid air bubbles to obstruct the filling Note Don t Forget to Tighten the Plugs after Filling is Complete Inspection o...
Page 8: ...nal Housing as Described Above Disassembling the Impeller The impeller is bolted to the shaft with a flat key and a bolt Securing the impeller with a pipe or similar tool remove the impeller bolt with a wrench Fig 4 To loosen the impeller it often helps to pry with a couple of strong screwdrivers between the impeller and the cooling plate Disassembling the Seal Cartridge Disassemble volute and imp...
Page 9: ...If the stator still cannot be used it has to be replaced Disconnect the stator from the outgoing cables and disassemble it Order an exchange stator unit from the nearest Pumpex Service Center Disassembling the Stator Disassemble the terminal housing as instructed above Remove the six screws that hold the stator casing Use three M16 screws and thread them into the three threaded holes at the lower ...
Page 10: ...le mounting the motor unit be extremely careful and make sure everything is clean Clean all O ring grooves and all other contact surfaces carefully Use a wire brush when necessary Lubricate all O rings with oil or grease to prevent the O rings from getting stuck or damaged when remounting Also lubricate all threads on the screws to facilitate disassembling when servicing next time Mounting the Bal...
Page 11: ...g in the oil housing The stator is now ready to be mounted on the oil housing Note that space is required for the shaft end when it sticks out after mounting Lift the stator unit with a lift device and carefully lower it over the rotor Do not forget to reconnect the cable to the moisture sensor in the oil housing Check that the rotor does not damage the windings or the stator core Fasten the stato...
Page 12: ...able diameter with a slide gauge and compare it to the holes in the cable seal and the washers so that the dimensions are identical Pull the seal onto the cable with one washer on each side Fig 13 Pull the cable through the cover so that the cable and its cover extends through the cable gland and into the terminal area when tightening the cable lead in After tightening the strain relief clamp is f...
Page 13: ...ith three vertically placed screws from the inside of the volute This requires nevertheless that the motor unit has been dismounted from the volute Note This Applies Only if Using a Channel Impeller If using a Vortex Impeller do not Adjust the Wear Ring Testing Connect the cables to the electric mains and start the pump The arrow on the cover indicates the direction of rotation The starting reacti...
Page 14: ...DING MOISTURE SENS OIL CHAMBER MOISTURE SENSOR TERMINAL BOARD AREA Star Delta starting THERMAL PROTECTION WINDING MOISTURE SENS OIL CHAMBER MOISTURE SENSOR TERMINAL BOARD AREA Direct on line starting THERMAL PROTECTION WINDING MOISTURE SENS OIL CHAMBER MOISTURE SENSOR TERMINAL BOARD AREA Direct on line starting Wiring Diagram ...
Page 15: ...e Gland A specific torque value cannot be given for the cable gland Tighten it until the rubber offers resistance and thereafter one more full rotation Size Nm lb ft M6 7 5 2 M8 17 12 5 M10 33 24 3 M12 57 42 0 M14 91 67 1 M16 140 103 3 Size Nm lb ft Impeller Bolt 198 146 M16 Bumax Latch Bolt 187 138 M16 A4 80 ...
