Table of Contents
Advertisement
Quick Links
Centrifugal pump with
volute casing
Original Operating Manual
Version
BA-2017.02 en-US
ID-No.
550 406
160-276/0
CNH-ML series
ALLWEILER GmbH
Postfach 1140
Allweilerstr. 1
78301 Radolfzell
Germany
Phone: +49 (0) 7732-86-0
Fax: +49 (0) 7732-86-436
Email: service@allweiler.de
Internet: http://www.allweiler.com
We reserve the right to make technical changes.
Read carefully before use.
Save for future use.
Advertisement
Table of Contents
Troubleshooting
Related Manuals for Allweiler CNH-ML Series
Summary of Contents for Allweiler CNH-ML Series
- Page 1 Centrifugal pump with volute casing Original Operating Manual CNH-ML series Version BA-2017.02 en-US ALLWEILER GmbH ID-No. 550 406 Postfach 1140 160-276/0 Allweilerstr. 1 78301 Radolfzell Germany Phone: +49 (0) 7732-86-0 Fax: +49 (0) 7732-86-436 Email: service@allweiler.de Internet: http://www.allweiler.com We reserve the right to make technical changes.
-
Page 2: Table Of Contents
........18 CNH-ML series BA-2017.02 en-US... - Page 3 Declaration of conformity according to EC machine directives ......48 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series...
- Page 4 Declaration of conformity according to EC machine directives ......48 CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406...
-
Page 5: About This Document
Declaration of conformity Conformity with standards Contents of the declaration of conformity (→ 9.5 Declaration of conformity according to EC machine directives, Page 48). Tab. 2 Other applicable documents and their purpose 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 6: Warnings And Symbols
Symbols and their meaning Technical terms Term Meaning Sealing medium Medium as seal barrier/buffer fluid or for quenching of shaft seals Auxiliary systems Systems for operating the pump Tab. 5 Technical terms and their meaning CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 7: Safety
(→ order data sheet, technical description). • When using auxiliary systems, ensure that there is a con- tinuous supply of the appropriate medium. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 8: Operator's Obligations
Only use original parts or parts that have been approved by the manufacturer. • Credit and check cards • electric, electronic, fine-mechanical devices (such as mechanical and digital clocks, pocket calculators, hard discs) CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 9: Layout And Function
Design characteristics 3.1.2 ATEX plate II 2 G c b Tx Technical File No.: EX9 03 09 45910 002 Fig. 2 ATEX plate (example) Explosion protection mark Reference to ATEX additional instructions 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 10: Construction
Layout and function Construction Fig. 4 CNH-ML construction (with grease lubrication) Volute casing Shaft Pump shaft Magnetic coupling Limit for heat insulation Impeller Bearing bracket Plain bearing CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 11: Auxiliary Systems
Layout and function Auxiliary systems 3.3.1 Heating the casing Fig. 5 Heating the casing Heating the casing Limit for heat insulation Heating the cover 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 12: Transport, Storage And Disposal
3. Dispose of packaging material according to local regula- tions. Fig. 6 Fastening the lifting gear to the pump aggregate Fig. 7 Attaching the lifting gear to the pump Lift the pump/aggregate properly. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 13: Preservation
3. Make certain that the storage room meets the following conditions: – – frost-free – vibration-free 4. Turn the shaft once a month. 5. Make certain that the shaft and the bearing change their rotational position in the process. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 14: Remove The Preservative Treatment
Remove any preservative treatment (→ 4.4 Remove the preservative treatment, Page 14). Remove and dispose of any plastic parts in accordance with local regulations. Dispose of pump according in accordance with local regu- lations. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 15: Setup And Connection
Make sure the required ambient conditions are fulfilled Only install the heat insulation on the volute casing (→ 9.2.1 Ambient conditions, Page 41). (→ Figure CNH-ML construction (with grease lubrication), Page 10). Install the heat insulation properly. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 16: Installing With Foundations
6. Use the integrated spirit levels to check that the pump is level end to end and side to side with max. 1mm/m allow- able tilt. 7. Repeat procedure until the base plate is correctly aligned. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 17: Fixing The Pump Aggregate
Use the integrated spirit level to check whether the pump is level end to end and side to side with a maxi- mum allowable tilt of 1 mm/m. – Repeat the procedure until the base plate is correctly aligned. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 18: Mounting The Motor
2. Ensure that pipe supports have permanent low-friction 1. Avoid radii of curvature less than 1.5 times the nominal pipe properties and will not seize up through corrosion. diameter. 2. Avoid abrupt changes of cross-section along the piping system. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 19: Discharging Leaks
5.6.4 Installing the pressure pipe 1. Remove transport and sealing covers from the pump. 2. Install the pressure pipe. 3. Ensure that no gaskets protrude inwards. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 20: Inspection For Stress-Free Pipe Connections
DANGER Risk of death due to rotating parts! Isolate the motor from its supply voltage and secure it against being switched back on again prior to any fitting or maintenance work. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 21: Precisely Align The Coupling
Position the straightedge across both halves of the coupling. – If there is a visible gap under the straightedge on the outer diameter, align the motor (→ 5.9 Aligning the motor, Page 22). 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 22: Aligning The Motor
(2) and tighten the lock nut (4). 4. Tighten the hexagon head bolts (1). 5. Check the alignment. 6. Repeat alignment procedure if there is still a vertical mis- alignment. 7. Tighten the motor bolts. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 23: Operation
5. Fill the reservoir and tip it up. 6. Repeat step 5 until the reservoir remains two thirds filled with lubricating oil. 7. Refit the vent screw. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 24: Preparing Auxiliary Systems (If Available)
Risk of injury and poisoning caused by pumped medium spraying out! Use personal protective equipment when carrying out any work on the pump. NOTE Material damage caused by dry running! Make certain that the pump is properly filled. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 25: Switching Off
Risk of injury caused by hot pump parts! Use personal protective equipment when carrying out any work on the pump. 1. Switch off the motor. 2. Check all connecting bolts and tighten if necessary. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 26: Start-Up Following A Shutdown Period
2. Open the pressure-side armature to an extent that the containers stand-by pump reaches its operating temperature and is with preser- heated through evenly (→ 6.2.1 Switching on, Page 24). vative. Tab. 9 Measures depending on nature of pumped medium CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 27: Maintenance
Do not carry out any work on the running pump. WARNING Risk of injury and poisoning due to hazardous pumped media! Use personal protective equipment when carrying out any work on the pump. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 28: Maintenance
Allow the pump to cool down before commencing any work. Make certain that the pump is unpressurized. Empty the pump, safely collect the pumped medium and dispose of the medium in accordance with environmental rules and requirements. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 29: Disassembling
Tab. 11 Actions for return Pay attention to the component weight. Lift and transport heavy components using suitable lifting gear. Set down components safely and secure them against overturning or rolling away. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 30: Preparations For Disassembling
Material damage due to unsuitable components! Always replace lost or damaged screws with screws of the same strength (→ 9.2.4 Tightening torques, Page 42). Only replace seals with seals of the same material. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 31: Ordering Replacement Parts
DIN 24296, Page 45). Have the following information ready to hand for ordering replacement parts (→ Type plate): – Pump type – Pump number – Year of manufacture – Part number – Designation – Quantity 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 32: Troubleshooting
Open the armature completely. – – – – – – – – Transport and sealing cover still in place Remove transport and sealing cover. Disassemble pump and inspect for dry-running damage. CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... - Page 33 Machine the impeller down. Consult with manufacturer and adjust the impeller diameter. – – – – – – – Viscosity lower than expected Machine the impeller down. Consult with manufacturer and adjust the impeller diameter. 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series...
-
Page 34: Troubleshooting List
Coupling unit worn Replace coupling unit and realign. – – – – – Motor running on 2 phases Check fuse and replace it if necessary. Check cable connections and insulation. Tab. 13 Troubleshooting list CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 35: Appendix
Ball bearing 550.107 Disc 330.01 Bearing bracket 550.20 Disc 360.01 Bearing cover 550.21 Disc 360.05 Bearing cover 550.22 Disc 400.01 Seal 550.23 Disc 400.04 Seal 550.24 Disc 400.05 Seal 550.25 Disc 402.05 Seal 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 36: Designations Of Components Listed With Part Numbers
Hexagon nut 920.106 Hexagon nut 920.107 Hexagon nut 921.01 Hexagon nut 921.02 Hexagon nut 930.01 Spring ring 930.04 Spring ring 932.01 Snap ring 932.02 Snap ring 932.03 Snap ring 940.01 Shaft key CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 37: Overview Sectional Drawing
Appendix 9.1.3 Overview sectional drawing Fig. 17 CNH-ML with oil lubrication 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... - Page 38 545.01 411.06 / 903.04 183.01 515.01 903.01 903.21 901.20 817.01 314.01 411.26 411.22 545.02 506.03 400.04 515.03 411.01 550.24 411.21 511.01 903.22 914.23 921.02 411.57 903.13 Fig. 18 CNH-ML with grease lubrication CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406...
- Page 39 Appendix Fig. 19 CNH-ML with heating 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series...
-
Page 40: Coupling Guard
Appendix Fig. 20 CNH-ML with double thrust bearing 9.1.4 Coupling guard Fig. 21 Coupling guard on base plate versions CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 41: Technical Specifications
Operating parameters for heating chamber 15.0 69.5 18.5 70.5 22.0 71.5 30.0 72.5 37.0 73.5 45.0 74.5 55.0 75.5 75.0 76.5 90.0 76.5 110.0 77.5 132.0 78.5 160.0 79.5 200.0 80.5 Tab. 18 Sound pressure level 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 42: Tightening Torques
Cleaning agents Foodstuffs and drinking e.g. spirit, Ritzol 155, strong water sector alkaline soapy solution, steam jet (for individual components only) Other Benzine, wax solvents, diesel, paraffin, alkaline cleaners Tab. 21 Cleaning agents CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 43: Height Offset To Align The Motor Using
0.60 – 1.42 – 0.63 – 1.44 – 0.65 – 1.46 – 0.67 – 1.48 – 0.69 1.50 1 revolution – 0.71 Tab. 22 Height setting on the adjusting screw – 0.73 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 44: Flange Loads According To Iso 5199
2400 10900 9500 5200 125–250 9700 6100 3450 14000 12800 7300 125–315 8500 5400 2950 12500 11400 6700 125–400 8600 5400 2950 12700 11600 6850 150–200 12600 8000 4800 17700 16600 9600 CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 45: Spare Parts For 2 Years Of Continuous Operation According To Din 24296
Tension ring 50 % 550.24 Disc 314.02 Thrust bearing 506.03 Retaining ring 50 % 515.06 Tension ring 314.03 Thrust bearing 515.07 Tension ring 50 % 550.20 Disc 321.01 Ball bearing 50 % 321.02 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 46: Tab
2) Only for versions with oil-lubricated bearing brackets 3) Only for versions with grease-lubricated bearing brackets 4) Only for versions without double thrust bearings 5) Only for versions with double thrust bearings CNH-ML series BA-2017.02 en-US 160-276/0 – 550 406... -
Page 47: Declaration Of Harmlessness
The sender is liable for all damages caused by unmarked decontaminations of the returned object. Place, date Signature Stamp Tab. 25 Declaration of harmlessness 160-276/0 – 550 406 BA-2017.02 en-US CNH-ML series... -
Page 48: Declaration Of Conformity According To Ec Machine Directives
EC declaration of conformity according to machine directive, appendix II A ALLWEILER GmbH, Postfach 1140, 78301 Radolfzell, Germany; Tel. +49 (0)7732 86-0, Fax. +49 (0)7732 86-436, hereby declare that, when the conditions in the operating manual are observed, the pump unit / pump:...
Need help?
Do you have a question about the CNH-ML Series and is the answer not in the manual?
Questions and answers