English (GB)
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9.5.2 Fitting the stator housing
1. Place the motor in horizontal position on wooden bars.
2. Fit the moisture switch in the stator housing (55), if any. See
section 9.3.3 Replacing the moisture switch.
3. Apply cooling paste (192) on the bottom flange of the stator
housing (55), and distribute an even layer on the entire flange,
using a fine-toothed putty knife.
4. Fit the intermediate flange (155).
In case of sensor version, pull the wire of the WIO sensor
continuously through the hole in the intermediate flange. Take
care not to damage the WIO sensor (521).
5. Fit the screws (184) and washers (184a), but do not tighten
the screws:
– Frame sizes B and C: The threaded holes for the screws
(184) are placed asymmetrically.
6. In case of sensor version, fit the wires of the WIO sensor.
See section 9.3.2 Replacing the water-in-oil sensor (WIO).
7. Fit the pin (6a), if any.
8. Turn the pump in vertical position on wooden bars.
9. Tighten the screws (184), including washer (184a), to a torque
of 30 Nm.
10. Remove the screw (183) and the washer (183a).
9.5.3 Fitting the sleeve
1. Place the motor in horizontal position on wooden bars.
2. Fit and lubricate the O-rings (37a).
3. Fit the oil plug (193) and the washers (194).
4. Lubricate the lower inner part of the sleeve (150) with O-ring
grease.
5. Lower the sleeve (150) down on the stator housing (55).
6. Press the sleeve home. It may be necessary to knock it with a
hammer and a wooden block.
9.5.4 Fitting the motor top
1. Fit the lifting bracket (190), including washer (190a), to the
motor top (151), if needed.
2. Fit and lubricate the O-ring (37b).
3. Fit and lubricate the O-ring (159).
4. Fit the motor top (151) to the stator housing (55).
5. Fit the washer (183a) and screw (183).
9.5.5 Fitting the upper bearing
1. Fit the upper bearing (154) to the shaft (172) and press home.
9.5.6 Fitting the shaft
1. Place the motor housing horizontally by means of a crane.
2. Fit the corrugated spring (158) into the stator housing (55).
It may be necessary to keep it in position with a small amount
of grease.
3. Lubricate the outside of the upper bearing (154) with O-ring
grease.
1. Fit and lubricate the O-ring (108) to the upper bearing cover
(60).
2. Fit the cover on the shaft (172).
3. Insert the rotor and shaft (172) into the stator housing (55) so
that the upper bearing (154) goes first.
Take care not to damage or pinch the WIO sensor (521), if
any.
4. Align the groove in the bearing housing (60) to the cable entry
of the intermediate flange (155).
9.5.7 Fitting the lower bearing
5. Fit the lower bearing (153) on the upper bearing cover (60).
Fill the bearing with grease.
6. Fit the corrugated spring (157).
7. Fit and lubricate the O-ring (109) to the lower bearing cover
(59).
8. Fit the lower bearing cover (59) to the shaft (172).
9. Fit the screws (182) and tighten them diagonally.
9.5.8 Fitting the shaft seal
10. Fit and lubricate the O-rings (153b)
11. Lubricate and fit the O-rings (106, 2 pcs) to the shaft seal
(105).
12. Carefully push the shaft seal (105) onto the shaft (172).
13. Lubricate the O-ring (107), and fit it into the cover for oil
chamber (58).
14. Fit the cover for oil chamber (58).
15. Fit and tighten the screws (186) diagonally.
In case of sensor version, fit the WIO sensor. See section
9.3.2 Replacing the water-in-oil sensor (WIO).
16. Fill in oil. See section 8.4 Checking and changing the oil.
This work must be carried out by Grundfos or an Ex-
approved service centre.
Pay attention to the correct pin (6a) position.
This work must be carried out by Grundfos or an Ex-
approved service centre.
This work must be carried out by Grundfos or an Ex-
approved service centre.
This work must be carried out by Grundfos or an Ex-
approved service centre.
Bearings are factory-greased for life.
This work must be carried out by Grundfos or an Ex-
approved service centre.
This work must be carried out by Grundfos or an Ex-
approved service centre.
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