Howden Roots 2500 Series WHISPAIR MAX, Installation, Operation And Maintenance Manual

ISRB

 2005 GEA 20260

Page 12 of 24

 
These capacities are provided to assist stocking the 

correct amount of oil. Exact sump capacity may differ 

slightly. See “Lubrication” section for proper filling 

instructions. 

Inspection & Maintenance: 2500 Series WHISPAIR Max and DVJ Blowers 

A good program of consistent inspection and 

maintenance is the most reliable method of 

minimizing repairs to a blower. A simple record of 

services and dates will help keep this work on a 

regular schedule. Basic service needs are: 



Lubrication 



Checking for hot spots 



Checking for increases or changes in vibration 

and noise 



Recording of operating pressures and 

temperatures  

Above all, a blower must be operated within its 

specified rating limits, to obtain satisfactory service 

life. 
A newly installed blower should be checked often 

during the first month of full-time operation. Attention 

thereafter may be less frequent assuming satisfactory 

performance. Lubrication is normally the most 

important consideration and weekly checks of 

lubricant levels in the gearbox and bearing reservoirs 

should be customary. Complete oil change schedules 

are discussed under LUBRICATION. 
Driver lubrication practices should be in accordance 

with the manufacturer’s instructions. If direct 

connected to the blower through a lubricated type 

coupling, the coupling should be checked and 

greased each time blower oil is changed. This will 

help reduce wear and prevent unnecessary vibration. 

In a belted drive system, check belt tension 

periodically and inspect for frayed or cracked belts. 
In a new, and properly installed, unit there is no 

contact between the two impellers, or between the 

impellers and cylinder or headplates. Wear is 

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17/09/2015   12:53