Howden Roots Metric Series, Installation, Operation And Maintenance Manual

ISRB_2002 GEA 19171 Roots URAI 

Page 2 of 32

Contents 

 
Information Summary..............................................2 
Safety Precautions..................................................3 
Operating Limit........................................................3 
Installation............................................................4-6 
Technical Supplement for URAI-G blowers ............8 
Lubrication............................................................8-9 
Operation...............................................................10 

Troubleshooting.....................................................11 
Inspection & Maintenance.....................................12 
Figures.............................................................13-16 
Tables...............................................................16-17 
Assembly Drawings..........................................18-23 
Parts List.........................................................24-25 
Basic Connection & Drive Shaft Information...26-28 

Do these things to get the most from your Roots

* 

Blower 



  Check shipment for damage. If found, file claim with 

carrier and notify Howden Roots. 



  Unpack shipment carefully, and check contents 

against Packing List. Notify Howden Roots if a 

shortage appears. 



  Store in a clean, dry location until ready for 

installation. Lift by methods discussed under 

INSTALLATION to avoid straining or distorting the 

equipment. Keep covers on all openings. Protect 

against weather and corrosion if outdoor storage is 

necessary. 



  Read OPERATING LIMITATIONS and 

INSTALLATION sections in this manual and plan the 

complete installation. 



  Provide for adequate safeguards against accidents 

to persons working on or near the equipment during 

both installation and operation. See SAFETY 

PRECAUTIONS. 



  Install all equipment correctly. Foundation design 

must be adequate and piping carefully done. Use 

recommended accessories for operating protection.  



Make sure both driving and driven equipment is 

correctly lubricated before start-up. See 

LUBRICATION. 



  Read starting check points under OPERATION. Run 

equipment briefly to check for installation errors and 

make corrections. Follow with a trial run under 

normal operating conditions. 



  In event of trouble during installation or operation, do 

not attempt repairs of Howden Roots furnished 

equipment. Notify Howden Roots, giving all 

nameplate information plus an outline of operating 

conditions and a description of the trouble. 

Unauthorized attempts at equipment repair may void 

Howden Roots warranty. 



  Units out of warranty may be repaired or adjusted by 

the owner. Good inspection and maintenance 

practices should reduce the need for repairs. 

NOTE:

Information in this manual is correct as of the 

date of publication. Howden Roots reserves the right 

to make design or material changes without notice, 

and without obligation to make similar changes on 

equipment of prior manufacture. 

Roots products are sold subject to the current General Terms of Sale, ES104 and Warranty Policy WP-5020. 

Copies are available upon request. 

ISRB_2002 GEA 19171 Roots URAI.indd   2

17/09/2015   12:52