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Grundfos CR 90 Service Manual

Grundfos CR 90
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Cool-Top®
Use 00SV2128 and a rubber mallet
to drive in three new Bushings
(Pos. 47g) and the Retainer Ring (Pos.
47h) into the Connecting Pipe (Pos. 149).
Replace the O-rings (Pos. 109a &
109b). Do not roll the O-ring into place;
stretch and release them into the
grooves. Then lubricate the O-rings
with Rocol or Dow Corning 111.
19
18
Lower and seat the Retainer (Pos. 58c) for the connecting pipe. Lubricate the threads
of the 8 mm hex socket Retaining Screws (Pos. 58d) with Gardolube (00SV9995) or
Thread-Eze (96611372). Install and diagonally torque the screws to 46ft.-lbs./62Nm.
21
16
Reassembly Procedures CR, CRN 32•45•64•90
O-rings of EPDM or FKM should have already been installed into the pump heads as
noted in Reassembly, step 14. If they were not, install them now. Then, lower the middle
pump head and carefully press it over the connecting pipe O-ring and seat it on the
spacing ring. Install the upper sleeve, and rmly press it in place. Put the uppermost
pump head in place, making sure it is rmly seated. Skip to reassembly step 46.
24
If the uppermost Pump Head
(Pos. 2b), upper Sleeve (Pos. 55a)
and middle Pump Head (Pos. 2c)
did not leak and were removed as
a complete assembly, then lower it
back in place as a complete assembly
and skip to reassembly step 46. If
the assembly leaked and was fully
dismantled, continue with step 24.
23
Place the Spacing Ring (Pos. 116) onto
the pump head.
22
20
Slide the completed connecting
pipe assembly down over the
shaft and rmly seat it into the
lowermost Pump Head (Pos. 2).

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Grundfos CR 90 Specifications

General IconGeneral
BrandGrundfos
ModelCR 90
CategoryWater Pump
LanguageEnglish

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