Service instructions
CRE 1, CRE 3 and CRE 5
Model A
50/60 Hz
1/3~
1. Type identification........................................................................................................................... 2
1.1 Nameplate ...........................................................................................................................................................2
1.2 Type key..............................................................................................................................................................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................................................................................................................................................................7
4.2 Replacement of motor ............................................................ .................................... ... ......................................8
4.3 Replacement of shaft seal............................... ..................................... ... .. ..........................................................9
4.4 Dismantling and assembly of pump main parts.................................................................................................10
4.5 Dismantling and assembly of chamber stack ....................................................................................................11
4.6 Dismantling and assembly of base and pump head..........................................................................................12
4.7 Checking and replacing parts...................................... ......................................................................................13
5. Order of assembly for chambers and impellers ......................................................................... 14
5.1 CRE 1 and CRE 3.................................................. .................................... ... .....................................................14
5.2 CRE 5................................ .................................... ............................................................................................15
96547191 0407
GB
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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 letter.
1.1 Nameplate
3
10
1
2
CRE5-10 AN-FGJ-A-E-HUB
Type
Model
6
7
8
9
P
2
50Hz
nn
H
max
QQ
96439820
HH
max max
A96459132P10117
1.50
kW kW
2900
68
49.8
25/120
-1
min
m
3
33
m/h
5.7
mm
bar / C
MADE IN DENMARK
60Hz
o
5
4
P
2
H
max
CCW
1.50
2900
68
5.7
49.8
min
m
m/h
11
-1
12
13
14
15
17
Pos. Description Pos. Description
1 Type designation. See 1.2 Type key 10 Head at rated flow rate, 50 Hz
2 Model 11
3 Product number 12 Speed, 60 Hz
4 Place of production 13 Head against closed valve, 60 Hz
5 Production year and week 14 Rated flow rate, 60 Hz
P
, 50 Hz
6
2
7 Speed, 50 Hz 16 Maximum pressure and temperature
8 Head against closed valve, 50 Hz 17 Country of production
9 Rated flow rate, 50 Hz 18 Direction of rotation (CCW = counterclockwise)
1816
TM02 1628 1701
P
, 60 Hz
2
15 Head at rated flow rate, 60 Hz
2 / 15
1.2 Type key
Example CRE 5 - 10 X- X- X- X- XXXX
Type range
Rated flow rate in m³/h
Number of stages
Code for pump version
A = Basic version
G = Pump for booster system
N = Pump with pressure sensor
U = NEMA version
Code for pipe connection
A = Oval flange
FGJ = DIN, ANSI and JIS flange
Code for pump materials
A = Pump head and base: Cast iron
Other wetted parts: Stainless steel
Code for rubber parts
E = EPDM
V = FKM
Code for shaft seal
HUBE/V = Balanced cartridge seal; rotating face: tungsten carbide;
HUUE/V = Balanced cartridge seal; rotating face: tungsten carbide;
stationary seat: resin-impregnated carbon;
O-rings, see code for rubber parts.
stationary seat: tungsten carbide;
O-rings, see code for rubber parts.
DIN W.-Nr. 1.4301
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2. Tightening torques and lubricants
Pos. Description Number Dim. Torque [Nm] Lubricant
7a Screw 4 M4 2
M6 13
9 Hexagon socket head screw 4
M10 62
18 Air vent screw (spindle) 1 ½" (M8) 35 (3)
25 Drain plug with bypass valve (spindle) 1 ½" (M10) 35 (5)
26 Staybolt 4 M12 THREAD-EZE
M6 10
28 Hexagon head screw 4
M12 40
35 Hexagon head screw 4 M10 23 THREAD-EZE
36 Nut 4 M12 50 THREAD-EZE
37 O-ring 2 ø137.5 x 3.3 Rocol 22
47a Bearing ring See 5. Order of assembly for chambers and impellers Rocol 22
67 Lock nut 1 M8 18 Gardolube L 6034
105 Shaft seal 1 M28 35
113 Set screw 3 M5 2.5
THREAD-EZE, part no. SV9997 (0.5 l).
Gardolube L 6034, part no. SV9995 (1 l).
Rocol 22, part no. RM2924 (1 kg).
THREAD-EZEM8 31
Soapy water23 Plug 1 ½" 35
THREAD-EZEM8 12
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3. Service tools
TM02 0846 0401
3.1 Special tools
Pos. Description For pos. Suppl. information Part no.
A Shaft holder for assembly SV0040
B Tu bular box spanner for shaft seal 105 SV2007
C Puller 65 SV0239
D Circlip pliers (not used for CR) SV2014
E Tool for outer sleeve 55 V7170478
F Tool for corrugated spring 60 V7170227
G Tool for O-ring 37 V7170230
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