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K 101/151/200/250/300.58.0404.Eng/Digital
SERVICE INSTRUCTION
K 101, 151, 200, 250, 300
Disassembling the Terminal Housing
Disassemble cover as instructed above.
Remove the six screws that hold the terminal housing in place.
Loosen the cables coming out of the motor unit from the terminal
block. The cable lugs have to be removed before cables can be
pulled through the cable seals. Lift the housing carefully.
Note! Always Check how the Cables are Connected
Inside the Block.
Disassembling the Cooling Jacket
Disassemble terminal housing as instructed above. Use the two
M10 holes on the top of the cooling jacket to lift off the cooling
jacket. If needed, use eyebolts for help.
Note! If only the Bearing and the Seal Have to be
Disassembled, the Cooling Jacket May Stay in Place -
then Disassemble Only the Terminal 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 impeller as instructed above, and empty
the pump of cooling liquid and oil. Lay the motor unit on its side.
Remove the four screws that holds the seal cartridge. The
cartridge can be removed from the oil chamber by inserting two
M8 screws (40 mm (1
9
/
16
") long) into the ”jacking holes” in the
cartridge or a M8 threaded plug, which will force the cartridge
from the housing (Fig. 5).
Changing the Stator Unit
If the motor protection trips repeatedly, the stator has to be
overhauled. Disconnect the pump from the electric box. Check
the isolation resistance of the motor at the loose end of the cable.
Use a megger.
Fig 4
Fig 5