2. Lower motor bracket 81-54.01 by turning threaded rods 904.23/904.24 and nuts
920.63/920.64 until the V-belts slacken.
3.
Remove the V-belts.
4. Undo hexagon bolts 901.62 of the motor at the motor bracket and remove discs
550.62.
5. Lift the motor off the motor bracket.
6. Undo hexagon nuts 920.23/920.24 at the pump or motor stand (Figure 3Z).
7. Remove the motor bracket from the pump or baseplate (Figure 3Z) and put it
down.
8. Undo bushing 540.02 at pump-end to remove pulley 882.01.
9. Take pulley 882.01 off shaft 210.
7.4.4 Removing the back pull-out unit
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 50) to (⇨ Section 7.4.3 Page
51) have been observed/carried out.
✓ On pump sets with belt drive or pump sets with coupling without spacer, the
motor has been removed.
WARNING
Back pull-out unit tipping over
Risk of squashing hands and feet!
▷ Suspend or support the back pull-out unit at the pump end.
1. Loop a rope tightly around bearing bracket lantern 344.
2.
Unbolt support foot 183 from the baseplate and remove it.
3. Undo hexagon nuts 920.01 at the volute casing.
4. Pull the back pull-out unit out of volute casing 101.
NOTE
You can use forcing screws 901.31 for the disassembly.
Clean the forcing screws before using them.
5. Place the back pull-out unit on a clean and level surface.
6. Remove and dispose of joint ring 411.10.
7.4.5 Dismantling the impeller
Bearing b r a c k ets P03ax, P0 4 a x , P05ax, P06x
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 50) to (⇨ Section 7.4.4 Page
52) have been observed/carried out.
✓ The back pull-out unit is kept in a clean and level assembly area.
1. Undo impeller nut 906 (right-hand thread).
2. Remove and dispose of O-ring 412.03.
3. Remove impeller 230 with a puller.
4. Place impeller 230 on a clean and level surface.
5. Remove keys 940.01 from shaft 210.
Bearing b r a c k ets P08sx, P1 0 a x , P12sx
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 50) to (⇨ Section 7.4.4 Page
52) have been observed/carried out.
✓ The back pull-out unit is kept in a clean and level assembly area.
1.
Unbolt impeller hub cap 260.01.
2. Remove and dispose of O-ring 412.03.
7 Servicing/Maintenance
52 of 78
KWP
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