Grundfos CR 32 Betriebsanleitung

Service instructions

CR(N) 32, 45, 64 and 90

Model A

50/60 Hz

96547183 0407 GB 1 / 20

1. Type identification........................................................................................................................... 2

1.1 Nameplate CR, CRN ...........................................................................................................................................2

1.2 Type key..............................................................................................................................................................3

1.3 Codes used..........................................................................................................................................................3

2. Tightening torques and lubricants................................................................................................. 4

3. Service tools .................................................................................................................................... 5

3.1 Special tools ........................................................................................................................................................5

3.2 Standard tools......................................................................................................................................................6

3.3 Torque tools.........................................................................................................................................................6

4. Dismantling and assembly ............................................................................................................. 7

4.1 General information.............................................................................................................................................7

4.2 Replacement of motor .........................................................................................................................................8

4.3 Replacement of motor stool.................................................................................................................................9

4.4 Replacement of coupling.....................................................................................................................................9

4.5 Replacement of shaft seal.................................................................................................................................10

4.6 Replacement of basic unit .................................................................................................................................11

4.7 Replacement of chamber stack.........................................................................................................................12

4.8 Dismantling of chamber stack............................................................................................................................13

4.9 Assembly of chamber stack...............................................................................................................................15

5. Order of assembly for chambers and impellers ......................................................................... 17

5.1 CR(N) 32............................................................................................................................................................17

5.2 CR(N) 45............................................................................................................................................................18

5.3 CR(N) 64............................................................................................................................................................19

5.4 CR(N) 90............................................................................................................................................................20

2 / 20

1. Type identification

This section shows the type key, the nameplate and the codes that can appear in the variant code.

Note: As codes can be combined, a code position may contain more than one code (letter).

1.1 Nameplate CR, CRN

TM02 1822 2101

Pos. Description Pos. Description

1 Type designation 6 Speed

2 Model 7 Head at rated flow rate

3 Product number 8 Country of production

4 Place of production 9 Maximum pressure and temperature

5 Production year and week 10 Rated flow rate

3 / 20

1.2 Type key

1.3 Codes used

Example CR 64 - 3- 2 X- X- X- X- XXXX

Type range

Rated flow rate in m³/h

Number of stages

Number of reduced-diameter impellers

Code for pump version a)

Code for pipe connection b)

Code for pump materials c)

Code for rubber components in pump d)

Code for shaft seal e)

Note Code Description

aA Basic version

U NEMA version

bF DIN flange

G ANSI flange

J JIS flange

cA Basic version

G Stainless steel parts in DIN W.-Nr. 1.4401 / AISI 316

GI Base plate and flanges in DIN W.-Nr. 1.4408 / AISI 316LN

dE EPDM

VFKM

EUBE/V Cartridge seal with O-ring; rotating face: tungsten carbide; stationary seat: resin-impregnated carbon; O-rings:

E=EPDM, V=FKM

EUHE/V Cartridge seal with O-ring; rotating face: tungsten carbide; stationary seat: embedded tungsten carbide; O-rings:

E=EPDM, V=FKM

EUUE/V Cartridge seal with O-ring; rotating face: tungsten carbide; stationary seat: tungsten carbide; O-rings: E=EPDM,

V=FKM

HUBE/V Balanced cartridge seal; rotating face: tungsten carbide; stationary seat: resin-impregnatedcarbon; O-rings: E=EPDM,

V=FKM

4 / 20

2. Tightening torques and lubricants

THREAD-EZE, part no. SV9997 (0,5 l).

Gardolube L 6034, part no. SV9995 (1 l).

Pos. Description Dim. Torque [Nm] Lubricant

9 Hexagon socket head screw M10 x 25 85 THREAD-EZE

18 Air vent screw 5/20 Gardolube L 6034

23 Plug 1/2” 35 THREAD-EZE

26b Hexagon socket head screw M8 x 30 15 Gardolube L 6034

28 Hexagon socket head screw M10 x 50 62 THREAD-EZE

28a

Hexagon head screw

M8 x 20 12

THREAD-EZE

M12 x 40 40

M16 x 50 80

Hexagon socket head screw 1/2” x 13 UNC 40

5/8” x 11 UNC 80

31 Hexagon socket head screw M6 x 10 8 Gardolube L 6034

36 Nut M16 100 THREAD-EZE

36a Nut M12 40 THREAD-EZE

M16 80

48 Split cone nut M30 x 1 70 Gardolube L 6034

58a Hexagon socket head screw M10 x 25 62 THREAD-EZE

67 Hexagon socket head screw M8 x 16 31 Gardolube L 6034

5 / 20

3. Service tools

3.1 Special tools

TM00 2158 1398

Pos. Description For pos. Suppl. information Part no.

A Holder with pin for dismantling and assembly

CR(N) 32 ~ SV0003-3

SV0003

CR(N) 45 ~ SV0003-4

CR(N) 64 ~ SV0003-5

CR(N) 90 ~ SV0003-2

B Punch 6g-47-47c-47d-47e SV0015

C Holder for wear ring 49c

CR(N) 32 SV0043

CR(N) 45 SV0044

CR(N) 64 SV0045

CR(N) 90 SV0046

D Puller for bottom bearing 6g SV0002

E Hexagon socket head screw for puller M8 x 50 ID6595

F Punch for fitting of neck ring/retainer 45a-65

CR(N) 32 SV0025

CR(N) 45 SV0027

CR(N) 64 SV0028

CR(N) 90 SV0029

G Puller for wear ring 49c SV0239

H Forked distance piece 105 985924

I Key for split cone nut 48-S 34 mm SV0004

J Pliers for retaining ring 203 SV0047

6 / 20

3.2 Standard tools

3.3 Torque tools

Pos. Description For pos. Suppl. information Part no.

K Tee key

105 (113) M6 3 mm SV0153

31 M6 - 5 mm SV0124

26b-67 M8 - 6 mm SV0050

9-58a M10 - 8 mm SV0051

L Hexagon socket head screw key

28-58a M10 - 8 mm ID1205

28a 5/8” - 1/2” SV0095

28a 1/2” - 3/8” SV0096

M Ring/open-end spanner

28a M8 - 13 mm SV0055

28a-36a M12 - 19 mm SV0054

28a-36-36a M16 - 24 mm SV0122

23-25 1/2” - 24 mm

N Hook spanner (adjustable) 49-49a SV0031

Pos. Description For pos. Suppl. information Part no.

O Torque wrench R 4-20 Nm 9 x 12 SV0292

20-100 Nm 9 x 12 SV0269

P Socket spanner

28a M8 - 13 mm ½” x ½” SV0091

28a-36 M12 - 19 mm ½” x ½” SV0267

28a-36-36a M16 - 24 mm ½” x ½” SV0092

23-25 1/2” - 24 mm ½” x ½”

Q Socket driver for hexagon socket head screws

31 M6 - 5 mm ½” x ½” SV0296

26b-67-E M8 - 6 mm ½” x ½” SV0297

9-28-58a M10 - 8 mm ½” x ½” SV0298

28a 1/2” - 3/8” ½” x ½” SV0094

5/8” - 1/2” ½” x ½” SV0093

R Ratchet insert tool O-P-Q 9 x 12 -> ½” x ½” SV0295

S Tap for key for split cone nut 48-I Ø14 9 x 12 SV0403

7 / 20

4. Dismantling and assembly

4.1 General information

The Grundfos centrifugal pumps, type CR(N) 32, 45, 64 and 90 are multistage in-line pumps.

If the pump is choked or damaged, please follow the instructions below.

Position numbers, see "Parts list” and 3. Service tools.

Before dismantling the pump, switch off the electricity supply to the motor and close the isolating valves, if fitted, to avoid

draining the system.

The electric cable should be removed in accordance with local regulations.

Before assembly, clean and check all parts. Parts that are defective should be replaced by new parts.

Order the necessary service kits, see "Parts list".

Gaskets and O-rings should always be replaced when the pump is overhauled.

The pump should be tested according to the test specifications below:

50 Hz 60 Hz

CR(N) 32 96428962 96428971

CR(N) 45 96428972 96428973

CR(N) 64 96428974 96428975

CR(N) 90 96428976 96428977

8 / 20

4.2 Replacement of motor

4.2.1 Dismantling

Slacken the screws, (pos. 7a), and remove them together with the coupling guards, (pos. 7).

Keep the shaft seal in position on the shaft by inserting the distance piece, (pos. H), between the shaft seal, (pos. 105),

and the seal carrier, (pos. 58). See fig. 1.

Fig. 1

Slacken the screws, (pos. 9), and remove them together with the coupling, (pos. 8).

Slacken and remove the screws, (pos. 28a), and the nuts, (pos. 36a).

Carefully lift the motor free of the pump using lifting equipment suitable for the motor size.

4.2.2 Assembly

Before assembly, clean all parts.

Fit the motor and turn it to the required terminal box position.

Lubricate the screws, (pos. 28a), and the nuts, (pos. 36a), with THREAD-EZE. Fit them and tighten diagonally.

See 2. Tightening torques and lubricants.

Before fitting the coupling, check that the forked distance piece, (pos. H), is still inserted between the shaft seal,

(pos. 105), and the seal carrier, (pos. 58).

Fit the coupling, (pos. 8), on the shaft so that the top of the pump shaft is flush with the bottom of the clearance chamber

in the coupling. See fig. 2.

Fig. 2

Lubricate the hexagon socket head screws, (pos. 9). Fit the screws, tighten and leave loose.

Check that the gaps either side of the coupling halves are equal.

Tighten the hexagon socket head screws, (pos. 9), two and two (one side at a time). See 2. Tightening torques and

lubricants.

Pull the forked distance piece, (pos. H), free of the shaft, turn it and store it on the screw, (pos. 58a).

Fit the coupling guards, (pos. 7), and fasten them with the screws, (pos. 7a).

TM01 1927 0698TM01 1930 0698

10558

9 / 20

4.3 Replacement of motor stool

4.3.1 Dismantling

Slacken the screws, (pos. 7a), and remove them together with the coupling guards, (pos. 7).

Keep the shaft seal in position on the shaft by inserting the distance piece, (pos. H), between the shaft seal, (pos. 105),

and the seal carrier, (pos. 58). See fig. 1.

Slacken the screws, (pos. 9), and remove them together with the coupling, (pos. 8).

Slacken and remove the screws, (pos. 28a), and the nuts, (pos. 36a).

Carefully lift the motor free of the pump using lifting equipment suitable for the motor size.

Slacken the screws, (pos. 28), and remove them together with the motor stool, (pos. 1a).

4.3.2 Assembly

Before assembly, clean all parts.

Fit the motor stool, (pos. 1a), and turn it to the required position.

Lubricate the screws, (pos. 28). Fit the screws and tighten diagonally. See 2. Tightening torques and lubricants.

Fit the motor and turn it to the required terminal box position.

Lubricate the screws, (pos. 28a), and nuts, (pos. 36a). Fit them and tighten diagonally. See 2. Tightening torques and

lubricants.

Before fitting the coupling, check that the forked distance piece, (pos. H), is still inserted between the shaft seal,

(pos. 105), and the seal carrier, (pos. 58).

Fit the coupling, (pos. 8), on the shaft so that the top of the pump shaft is flush with the bottom of the clearance chamber

in the coupling. See fig. 2.

Lubricate the hexagon socket head screws, (pos. 9). Fit the screws, tighten and leave loose.

Check that the gaps either side of the coupling halves are equal.

Tighten the hexagon socket head screws, (pos. 9), two and two (one side at a time). See 2. Tightening torques and

lubricants.

Pull the forked distance piece, (pos. H), free of the shaft, turn it and store it on the screw, (pos. 58a).

Fit the coupling guards, (pos. 7), and fasten them with the screws, (pos. 7a).

4.4 Replacement of coupling

4.4.1 Dismantling

Slacken the screws, (pos. 7a), and remove them together with the coupling guards, (pos. 7).

Keep the shaft seal in position on the shaft by inserting the distance piece, (pos. H), between the shaft seal, (pos. 105),

and the seal carrier, (pos. 58). See fig. 1.

Slacken the screws, (pos. 9), and remove them together with the coupling, (pos. 8).

4.4.2 Assembly

Before assembly, clean all parts.

Before fitting the coupling, check that the forked distance piece, (pos. H), is still inserted between the shaft seal,

(pos. 105), and the seal carrier, (pos. 58).

Fit the coupling, (pos. 8), on the shaft so that the top of the pump shaft is flush with the bottom of the clearance chamber

in the coupling. See fig. 2.

Lubricate the hexagon socket head screws, (pos. 9). Fit the screws, tighten and leave loose.

Check that the gaps either side of the coupling halves are equal.

Tighten the hexagon socket head screws, (pos. 9), two and two (one side at a time). See 2. Tightening torques and

lubricants.

Pull the forked distance piece, (pos. H), free of the shaft, turn it and store it on the screw, (pos. 58a).

Fit the coupling guards, (pos. 7), and fasten them with the screws, (pos. 7a).

10 / 20

4.5 Replacement of shaft seal

4.5.1 Dismantling

To enable replacement of shaft seal, motors up to and including 7.5 kW/10.0 HP must be removed; motors larger than

7.5 kW need not be removed.

Slacken the screws, (pos. 7a), and remove them together with the coupling guards, (pos. 7).

Slacken the screws, (pos. 9), and remove them together with the coupling, (pos. 8).

Pumps with motors up to and including 7,5 kW/10 HP

Slacken and remove the screws, (pos. 28a), and the nuts, (pos. 36a).

Carefully lift the motor free of the pump using lifting equipment suitable for the motor size.

Slacken the screws, (pos. 58a), and remove them together with the seal carrier, (pos. 58).

Clean the shaft end. Slacken the three screws, (pos. 113), so that they do not touch the shaft.

The screws should be slackened only so much that the shaft seal can be removed from the shaft.

Loosen the shaft seal, (pos. 105), from the pump head using two screwdrivers. See fig. 3, and pull it off the shaft.

Fig. 3

4.5.2 Assembly

Clean and smooth the shaft before fitting the shaft seal. Use the holder with emery cloth supplied with the shaft seal kit.

Apply O-ring grease to the shaft end and the O-ring of the shaft seal, (pos. 105). Press the shaft seal down on the shaft

and against the pump head.

Remove excess grease from the shaft end using a cloth.

Fit the seal carrier, (pos. 58).

Lubricate the screws, (pos. 58a). Fit the screws and tighten diagonally. See 2. Tightening torques and lubricants.

Press the pump shaft home and fasten the shaft seal on the shaft with the screws, (pos. 113). See fig. 1.

Lift the pump shaftand insert the forked distance piece, (pos. H),between the shaftseal, (pos.105), and theseal carrier,

(pos. 58). See fig. 1.

Pumps with motors up to and including 7,5 kW/10 HP

Fit the motor and turn it to the required terminal box position.

Lubricate the screws, (pos. 28a), and the nuts, (pos. 36a). Fit them and tighten diagonally to the torque stated.

See 2. Tightening torques and lubricants.

Fit the coupling, (pos. 8), on the shaft so that the top of the pump shaft is flush with the bottom of the clearance chamber

in the coupling. See fig. 2.

Lubricate the hexagon socket head screws, (pos. 9). Fit the screws, tighten and leave loose.

Check that the gaps either side of the coupling halves are equal.

Tighten the hexagon socket head screws, (pos. 9), two and two (one side at a time). See 2. Tightening torques and

lubricants.

Pull the forked distance piece, (pos. H), free of the shaft, turn it and store it on the screw, (pos. 58a).

Fit the coupling guards, (pos. 7), and fasten them with the screws, (pos. 7a).

TM01 2027 0998

105

113

Andere Handbücher für CR 32

Dieses Handbuch passt für folgende Modelle

Inhaltsverzeichnis

Andere Grundfos Wasserpumpe Handbücher

Grundfos

Grundfos CR 95 Bedienungsanleitung

Grundfos

Grundfos SQ Series Bedienungsanleitung

Grundfos

Grundfos UNOLIFT Bedienungsanleitung

Grundfos

Grundfos DME series Bedienungsanleitung

Grundfos

Grundfos Redi-Flo3 Bedienungsanleitung

Grundfos

Grundfos SCALA 2 Original Betriebsanleitung

Grundfos

Grundfos CH Series Bedienungsanleitung

Grundfos

Grundfos LC 241 Bedienungsanleitung

Grundfos

Grundfos HYDRO SOLO-E Bedienungsanleitung

Grundfos

Grundfos NB Montageanleitung

Grundfos

Grundfos Unilift AP12 Bedienungsanleitung

Grundfos

Grundfos COMFORT PM Bedienungsanleitung

Grundfos

Grundfos CMBE TWIN Bedienungsanleitung

Grundfos

Grundfos SRP Series Bedienungsanleitung

Grundfos

Grundfos UPS2 Bedienungsanleitung

Grundfos

Grundfos COMFORT PM B Bedienungsanleitung

Grundfos

Grundfos NK Betriebsanleitung

Grundfos

Grundfos Sololift2 C-3 Bedienungsanleitung

Grundfos

Grundfos Unilift AP12 Bedienungsanleitung

Grundfos

Grundfos DME 60-940 l/h Betriebsanleitung

Grundfos

Grundfos LC Bedienungsanleitung

Grundfos

Grundfos MTA 30 Bedienungsanleitung

Grundfos

Grundfos FB Series Bedienungsanleitung

Grundfos

Grundfos Sololift2 D-2 Bedienungsanleitung

Beliebte Wasserpumpe Handbücher anderer Marken

Neptun

Neptun NPHW 5500 Bedienungsanleitung

Sensidyne

Sensidyne Gilian BDX-II Montage- und Bedienungsanleitung

Draper

Draper 47808 Bedienungsanleitung

Trolla

Trolla 12820 Bedienungsanleitung

Sunfab

Sunfab SVH Series Bedienungsanleitung

WilTec

WilTec 50740 Bedienungsanleitung

Fieldmann

Fieldmann FVC 5015 EK Bedienungsanleitung

Everbilt

Everbilt EFSUB5-122HD Bedienungsanleitung

Graco

Graco Husky 3300e Bedienungsanleitung

esotec

esotec 101018 Bedienungsanleitung

Becker

Becker BASIC VASF 2.80/1-0.AC230 Bedienungsanleitung

Sykes AmeriPumps

Sykes AmeriPumps GP100M Fehlerbehebungshandbuch

DUROMAX

DUROMAX XP WX Series Bedienungsanleitung

BRINKMANN PUMPS

BRINKMANN PUMPS SBF550 Bedienungsanleitung

Franklin Electric

Franklin Electric IPS Bedienungsanleitung

Xylem

Xylem e-1532 Series Bedienungsanleitung

Milton Roy

Milton Roy PRIMEROYAL Bedienungsanleitung

STA-RITE

STA-RITE ST33APP Bedienungsanleitung