Grundfos CRN 16 A Service Instructions Manual Download Page 10

Page: 10 / 12

22.10.2002

10 of 12

Tighten the hexagon socket head screws two and two (one side at a time), see section

2. Torques and lub-

ricants

Check that the gaps either side of the coupling halves are equal and check the pump by turning the coupling.
If the pump is tight or it cannot be rotated, a further adjustment should be carried out.

Fit the two coupling guards pos. 7 and fasten them with the screws pos. 7a.

The pump is now assembled. Check the head and flow and compare the results with the test specification
no. BM33A001.

Summary of Contents for CRN 16 A

Page 1: ...tion 2 1 1 Nameplate CR CRN CRT 2 1 2 Type key 3 1 3 Codes used 3 2 Torques and lubricants 4 3 Service tools 5 3 1 Special tools 5 3 2 Standard tools 5 3 3 Torque tools 5 4 Shaft seals 6 5 Dismantling and assembly 7 5 1 Dismantling 7 5 2 Assembly 8 6 Order of assembly for chambers and impellers 11 6 1 CRN 16 11 6 2 CRT 16 12 ...

Page 2: ...than one code letter 1 1 Nameplate CR CRN CRT TM00 3164 4800 Pos Description Pos Description 1 Type designation 6 Maximum pressure and temperature 2 Model 7 Rated flow rate 3 Product number 8 Head at rated flow rate 4 Place of production 9 Speed 5 Production year and week 10 Country of production CRN8 140 A P G AUUE B 42630014 P1 00 47 1 2 3 4 5 7 8 9 23 120 25 85 119 4 9 5 2900 10 MADE IN DENMARK...

Page 3: ... seal d Note Code Description a A Basic version S Pump without staybolts T Oversize motor two flange sizes bigger U NEMA version b C Clamp coupling F DIN flange G ANSI flange J JIS flange O Union P PJE coupling c G Stainless steel parts in DIN W Nr 1 4401 T Stainless steel parts replaced by titanium parts d BUBE V Rubber bellows seal rotating face tungsten carbide stationary seat synthetic resin i...

Page 4: ... part no SV0862 1 l Pos Description Dim Torque Nm Lubricant 9 Hexagon socket head screw M8 x 25 31 Thread eze M10 x 25 62 28 Hexagon head screw M8 x 25 12 Thread eze M12 x 45 30 M12 x 30 30 28 a Hexagon head screw M12 x 30 30 Thread eze M16 x 45 40 36 Nut M16 100 Thread eze 36 a Nut M16 80 Thread eze 67 Nut M12 40 Bonderlube 103 Seal ring stationary Silicone oil 104 Seal ring rotating 127 Hexagon ...

Page 5: ... information Part no F Ring open end spanner 28 a M8 13 mm SV0055 28 28 a 67 M12 19 mm SV0054 18 28 36 36 a 24 mm SV0122 G Tee key 9 M8 6 mm SV0050 M10 8 mm SV0051 H Hexagon socket head screw key 127 134 M16 14 mm SV0393 Pos Description For pos Suppl information Part no I Torque wrench H I J 4 20 Nm 9 x 12 SV0292 20 100 Nm 9 x 12 SV0269 40 200 Nm 14 x 18 SV0400 J Ring spanner 28 a I M8 13 mm 9 x 1...

Page 6: ...22 10 2002 GB Page 6 of 12 4 Shaft seals TM00 2430 3596 Stationary shaft seal part Rotating shaft seal part TM00 2429 4493 ...

Page 7: ...s slackened Remove the nut the washer pos 66 not included in CRT and the spacing pipe pos 64c Place the shaft holder pos A in a vice and tighten it Place the chamber stack in the shaft holder with the threaded shaft end pointing upwards Make sure that the chamber is positioned in the recess of the shaft holder pos A and that the shaft can pass freely through and underneath the shaft holder Screw t...

Page 8: ...the rotating bearing ring pos 47a and the stationary bearing ring in the chamber pos 4a is 0 4 mm Pump head Moisten the O rings pos 78 and 98 with water and fit them to the collar and the socket of the pump head cover pos 77 Push the pump head cover into the pump head Make sure that the pump head cover is pressed home in the pump head Fit the O ring pos 100 to the air vent screw pos 18 and fit the...

Page 9: ...n 4 Shaft seals Moisten the rubber parts with water before they are fitted Make sure that the rubber parts are not damaged on the shaft pin hole and that the seal rings are not ex posed to blows or knocks Check that the spacer for shaft seals pos 61 engage when the spring is compressed The spring will then press the seal ring upwards to a neutral spring position Fit the top chamber pos 3 and the d...

Page 10: ...her side of the coupling halves are equal and check the pump by turning the coupling If the pump is tight or it cannot be rotated a further adjustment should be carried out Fit the two coupling guards pos 7 and fasten them with the screws pos 7a The pump is now assembled Check the head and flow and compare the results with the test specification no BM33A001 ...

Page 11: ...r chambers and impellers 1 Determine pumptype CRN 16 or CRT 16 and stage variant Find the pump in the relevant stage sur vey table 2 Find the components of each stage in the symbol survey 6 1 CRN 16 Stage survey TM00 2354 3596 TM00 2356 4093 Symbol survey ...

Page 12: ... 2 140 100 8 70 70 6 CRT 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 100 6 2 CRT 16 Stage survey TM02 4717 1502 Symbol survey Note indicates that the type designation for the pump has been changed the pump has one or two extra empty chambers shaft outer sleeve and staybolts are correspondingly longer ...

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