Dismantling And Assembly Instructions; Checking And Replacing The Cable - Grundfos S Series Service Instructions Manual

9. Dismantling and assembly instructions

Position numbers of parts (digits) refer to section
and section and position numbers of tools (letters) refer to section
7. Service tools.
There are several service videos available as
guidance on Grundfos Product Center or YouTube.

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.
Always use original service parts from the
manufacturer.
9.1.1 Cable change
Do not disassemble the cable entry unless you are
going to replace it.
Disconnecting the cables will shorten them
significantly.
Disconnect the cable - composite cable entry (non-Ex)
181
181a
198
164
Fig. 12 Cable entry attached to motor top cover
1. See section
9.3.4 Removing the cooling
2. See section
9.3.5 Removing the motor top
Make sure that the cables are disconnected from the
terminal board before removing the cable entry.
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)
11. Drawings
1. Slide cable entry (168) on the cable (181).
2. Slide the cable clamp (180) and rubber seal (198) on the
3. Fit the cable clamp (180) and rubber seal (198) on the cable
4. Fit the cable entry to the motor top cover (164) with screws
5. Tighten the screws (181a) evenly with a torque. See section
Disconnect the cable - metal cable entry (non-Ex/Ex)
This section is only valid for range 70 pumps.
168
180
1. See section
2. See section
jacket.
3. Remove the screws (180a). See fig. 13.
cover.
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)
8. Remove the rubber seal (198) from the cable entry (168).
To prepare a new cable (length of leads, cable clips,
cable markings, etc.), please use the old cable as
reference.
cable (181).
entry (168).
(181a).
6. Torques and lubricants.
Connect according to the wiring diagrams.
168
180
180a
198
164a
Fig. 13 Cable entry attached to motor top cover
9.3.4 Removing the cooling
9.3.5 Removing the motor top
Make sure the cables are disconnect from the
terminal board before removing the cable entry.
and washer (185), if any, from the cable (181).
181
181a
185
jacket.
cover.
15