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Table of Contents
- 1 Table of Contents
- 2 Information Summary
- 3 Safety Precautions
- 4 Operating Limit
- 5 Installation
- 6 Technical Supplement for URAI-G Blowers
- 7 Lubrication
- 8 Operation
- 9 Troubleshooting
- 10 Inspection & Maintenance
- 11 Figures
- 12 Tables
- 13 Assembly Drawings
- 14 Parts List
- 15 Basic Connection & Drive Shaft Information
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Table of Contents
Related Manuals for Howden Roots Universal RAI Series
Summary of Contents for Howden Roots Universal RAI Series
- Page 1 Roots* Universal RAI*, URAI-DSL, Roots* Universal RAI*, URAI-DSL, URAI-G* & Metric Series URAI-G* & Metric Series Installation, Operation and Maintenance Manual Installation Operation & Maintenance Manual...
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Page 2: Table Of Contents
Follow with a trial run under Unpack shipment carefully, and check contents normal operating conditions. against Packing List. Notify Howden Roots if a shortage appears. In event of trouble during installation or operation, do not attempt repairs of Howden Roots furnished ... -
Page 3: Safety Precautions
Safety Precautions CAUTION: Never cover the blower inlet with your hand or other part of body. It is important that all personnel observe safety precautions to minimize the chances of injury. Among Stay clear of the blast from pressure relief valves and many considerations, the following should be particularly the suction area of vacuum relief valves. -
Page 4: Installation
The plate should be at least 1 inch (25 mm) thick, with its top surface machined flat, Supervision of the installation by a Howden Roots and large enough to provide levelling areas at one side Service Engineer is not usually required for these units. - Page 5 When selecting a sheave to be fitted to the blower shaft consider how piping arrangements are dictated by the Howden Roots recommends a taper lock style sheave to unit design and assembly. Drive shaft rotation must be insure proper contact with the blower shaft. This...
- Page 6 the unit sheave. This position minimizes belt wear, and Blower Drive Arrangement Options. The driver must allows sufficient adjustment for both installing and also be mounted on an adjustable base to permit tightening the belts. After belts are installed, adjust their installing, adjusting and removing the V-belts.
- Page 7 Howden Roots distributor. Discharge piping Pipe flanges or male threads must meet the unit requires a pressure relief valve, and should include a connections accurately and squarely. DO NOT attempt manual unloading valve to permit starting the unit under to correct misalignment by springing or cramping the no-load conditions.
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Page 8: Technical Supplement For Urai-G Blowers
Due to sludge build-up and seal leakage problems, The lubrication should be changed after initial 100 hours Howden Roots recommendation is DO NOT USE of operation. Mobil SHC synthetic oils in Roots blowers. Proper service intervals of the oil thereafter are based Proper lubrication is usually the most important on the discharge air temperature of the blower. - Page 9 NOTE: To estimate oil temperature, multiply the Howden Roots does NOT recommend the use of discharge temperature of the blower by 0.80. Example: if automotive type lubricants, as they are not formulated the discharge air temperature of the blower is 200° F, it with the properties mentioned above.
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Page 10: Operation
Operation already provided, and that thermometers be in both inlet and discharge lines. Readings from these instruments Before operating a blower under power for the first time, will show whether pressure or temperature ratings of the recheck the unit and the installation thoroughly to reduce blower are being exceeded. - Page 11 ISRB_2002 GEA 19171 Roots URAI Page 11 of 32...
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Page 12: Troubleshooting
This will considered beyond the scope of maintenance, and cause spot heating, which can be detected by observing should be referred to an authorized Howden Roots these surfaces. Sudden bearing failure is usually more distributor. -
Page 13: Figures
ISRB_2002 GEA 19171 Roots URAI Page 13 of 32... - Page 14 ISRB_2002 GEA 19171 Roots URAI Page 14 of 32...
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Page 16: Tables
ISRB_2002 GEA 19171 Roots URAI Page 16 of 32... - Page 17 ISRB_2002 GEA 19171 Roots URAI Page 17 of 32...
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Page 18: Assembly Drawings
ISRB_2002 GEA 19171 Roots URAI Page 18 of 32... - Page 19 ISRB_2002 GEA 19171 Roots URAI Page 19 of 32...
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Page 24: Parts List
ISRB_2002 GEA 19171 Roots URAI Page 24 of 32... - Page 25 ISRB_2002 GEA 19171 Roots URAI Page 25 of 32...
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Page 26: Basic Connection & Drive Shaft Information
ISRB_2002 GEA 19171 Roots URAI Page 26 of 32... - Page 27 ISRB_2002 GEA 19171 Roots URAI Page 27 of 32...
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- Page 32 Howden Roots 900 West Mount Street Connersville Indianna 47331 ©Howden Group Limited. All rights reserved. 2015. HOW ISRB-2002_19171 Howden and the flying H logo are registered trade marks belonging to Howden Group Limited.
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