Grundfos DPK, Service Instructions Manual

Page: 11 / 28

English (GB)
11
6. Assembly
6.1 Fitting stator
Fig. 7
Heating up the stator housing before fitting the stator
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.
4. Make sure the stator is placed in correct position according to
section
5.7 Removing stator
, point 8.
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
3. Tightening
torques
.
6. Fit the cable entry (168), tighten the screws (181a) according
to torques in section
3. Tightening torques
.
Fig. 8
Marking of conductors
TM
04
55
34
33
09
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.
T
M
04
55
35
33
0
9
UV
W
G
UV
X
Z
Y
W
G
U X V Y W Z
1 4 2 5 3 6
U V U W V W
0M
Ω
0M
Ω
0M
Ω
0M
Ω
0M
Ω
0M
Ω
U, Z (1, 6) L
V, X (2, 4) L
W, Y
1
2
3
(3, 5) L
1.U:Red
When checking pumps wired star-delta to DOL , see list
below.
2.V:White
3.W:Black
G:Green
1.U:Red
2.V:White
3.W:Black
6.Z:Red
4.X:White
5.Y:Black
G:Green
UV
W
G
UV
X
Z
Y
W
G
U X V Y W Z
1 4 2 5 3 6
U V U W V W
0M
Ω
0M
Ω
0M
Ω
0M
Ω
0M
Ω
0M
Ω
U, Z (1, 6) L
V, X (2, 4) L
W, Y
1
2
3
(3, 5) L
1. U: Red
When checking pumps wired star-delta to DOL, see the
list below.
2. V: White
3. W: Black
G: Green
1. U: Red
2. V: White
3. W: Black
6. Z: Red
4. X: White
5. Y: Black
G: Green