Assembly; Fitting Stator; Fitting Cable - Grundfos DPK Service Instructions Manual

6. Assembly

6.1 Fitting stator

Heating up the stator housing before fitting the stator
Fig. 7
1. Place the stator housing in upright position.
2. Protect the free conductors from the heat of the stator.
3. Slowly heat up the stator housing evenly to approximately 200
°C.
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.
4. Make sure the stator is placed in correct position according to
section stator, point 8.
5.7 Removing
5. Lower the stator into the preheated stator housing.
6. Make sure the stator reaches the bottom recess in the stator
housing.
7. Let the stator housing cool down by natural cooling.

6.2 Fitting cable

1. Fit the cable in the top cover (151).
2. Fit and lubricate the O-ring (37) on the top cover (151). See
section
3. Tightening torques.
3. Connect power and signal conductors to the top cover. See
figs 8 to 10.
4. Check the connection again. See fig. 8.
5. Fit the top cover (151) on the stator housing, tighten the
screws (183) according to torques in section
torques.
6. Fit the cable entry (168), tighten the screws (181a) according
to torques in section
3. Tightening
1.U:Red
1. U: Red
2.V:White
2. V: White
3.W:Black
3. W: Black
G:Green
G: Green
0MΩ 0MΩ 0MΩ
0MΩ 0MΩ 0MΩ
U V U W V W
U V U W V W
When checking pumps wired star-delta to DOL, see the
When checking pumps wired
list below.
below.
U, Z (1, 6) L
1
U, Z (1, 6) L
1
V, X (2, 4) L
2
V, X (2, 4) L
2
W, Y (3, 5) L
3
W, Y (3, 5) L
3
Marking of conductors
Fig. 8
3. Tightening
torques.
1.U:Red
1. U: Red
2.V:White
2. V: White
3.W:Black
3. W: Black
6.Z:Red
6. Z: Red
4.X:White
4. X: White
5.Y:Black
5. Y: Black
G:Green
G: Green
0MΩ 0MΩ 0MΩ
0MΩ 0MΩ 0MΩ
U X V Y W Z
U X V Y W Z
1 4 2 5 3 6
1 4 2 5 3 6
star-delta to DOL, see list
11