Grundfos S Series - Installation Procedures; Mechanical Installation Overview

English (GB)
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9. Dismantling and assembly instructions
Position numbers of parts (digits) refer to section 11. Drawings
and section and position numbers of tools (letters) refer to section
7. Service tools.
9.1 Checking and replacing the cable
Make sure that the cables are not sharply bent or pinched and
that the cable sheath has no visual defects.
9.1.1 Cable change
Disconnect the cable - composite cable entry (non-Ex)
Fig. 12 Cable entry attached to motor top cover
1. See section 9.3.4 Removing the cooling jacket.
2. See section 9.3.5 Removing the motor top cover.
3. Remove the screws (181a). See fig. 12.
4. Pull the cable (181) including the cable entry assembly out of
the motor top cover (164a).
5. Remove the cable entry (168) including the rubber seal (198)
and cable clamp (180), if any, from the cable (181).
6. Remove the rubber seal (198) from the cable entry (168).
7. Remove the cable clamp (180) from the cable entry (168).
Connecting the new cable - composite cable entry (non-Ex)
1. Slide cable entry (168) on the cable (181).
2. Slide the cable clamp (180) and rubber seal (198) on the
cable (181).
3. Fit the cable clamp (180) and rubber seal (198) on the cable
entry (168).
4. Fit the cable entry to the motor top cover (164) with screws
(181a).
5. Tighten the screws (181a) evenly with a torque. See section
6. Torques and lubricants.
Disconnect the cable - metal cable entry (non-Ex/Ex)
This section is only valid for range 70 pumps.
Fig. 13 Cable entry attached to motor top cover
1. See section 9.3.4 Removing the cooling jacket.
2. See section 9.3.5 Removing the motor top cover.
3. Remove the screws (180a). See fig. 13.
4. Remove the cable clamp (180).
5. Remove the screws (181a).
6. Pull the cable out of the motor top cover (164a).
7. Remove the cable entry (168) including the rubber seal (198)
and washer (185), if any, from the cable (181).
8. Remove the rubber seal (198) from the cable entry (168).
There are several service videos available as
guidance on Grundfos Product Center or YouTube.
Always use original service parts from the
manufacturer.
Do not disassemble the cable entry unless you are
going to replace it.
Disconnecting the cables will shorten them
significantly.
TM06 7485 3516
Make sure that the cables are disconnected from the
terminal board before removing the cable entry.
181a
181
198
164
168
180
To prepare a new cable (length of leads, cable clips,
cable markings, etc.), please use the old cable as
reference.
Connect according to the wiring diagrams.
TM06 7216 3016
Make sure the cables are disconnect from the
terminal board before removing the cable entry.
181
168
180
180a
198
164a
181a
185