Grundfos DPK, Service Instructions Manual

Page: 10 / 28

English (GB)
10
5.6 Removing cable
Fig. 5
Cable entries
1. Disconnect the power supply to the motor.
2. Remove the top cover (151).
3. Disconnect power and signal conductors from the top cover.
4. Remove the cover for the cable entry (168).
5. Remove the cable (181).
5.7 Removing stator
Fig. 6
Heating up the stator housing in order to remove the
stator
1. Drain oil from the oil chamber. See section
5.2 Oil change
.
2. Remove the impeller and pump housing. See section
5.3 Removing impeller and pump housing
.
3. Remove the lower bearing bracket (60) and the rotor (172).
4. Remove the cover for bearings (59) from the lower bearing
bracket.
5. Remove the top cover (151).
6. Disconnect power and signal conductors from the top cover.
7. Protect the free conductors from the heat of the stator.
8. Mark the position of stator conductors on the stator housing
for later refitting the stator in the same position.
9. Block up the stator housing in upside-down position as shown
in fig. 6 .
10. Slowly heat up the stator housing evenly until the stator drops
out.
TM
04
55
32
33
09
168a
168a
168
TM0
4
553
3
3
3
0
9
WARNING
Hot surface
Death or serious personal injury
- Make sure not to touch the surface of the stator
housing to avoid burns or personal injury.
Make sure that the stator will not be damaged when
dropping out of the stator housing.