Removing Impeller And Pump Housing - Grundfos DWK Series Service Instructions Manual

5. Add the appropriate quantity of oil to the specific pump. See
table below.
Pump type No. of poles
DWK.O 2 pole
DWK.E 2 pole
DPK 2 pole
2 pole
DPK.V
4 pole
6. Clean the O-ring seats on the pump and on the oil screw (pos.
193).
7. Lubricate and mount a new O-ring (pos. 194) on the oil screw.
Lubricate and tighten the oil screw to correct torque. See
section
3. Tightening torques.
Shaft power
Oil capacity [l]
[kW]
0.75
1.5 0.52
2.2
3.7 1.04
5.5
7.5
2.15
11
15
22
3.00
30
37
45
55 6.10
75
90
0.75
1.5 0.40
2.2
3.7 0.92
5.5
7.5
1.92
11
15
19
2.20
22
1.5
0.44
2.2
3.7 0.88
5.5
1.84
7.5
1.5
0.80
2.2
3.7
5.5 1.82
7.5

5.3 Removing impeller and pump housing

DWK-O
Removing the impeller and pump housing
Fig. 3
1. Drain oil from oil chamber. See section
2. Remove suction strainer/ring stand (pos. 84a).
3. Remove suction cover (pos. 189).
4. Remove impeller (pos. 49).
5. Remove key (pos. 9a) from shaft.
6. Remove pump housing (pos. 50).
DPK
5.2 Oil change.
7