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Summary of Contents for Howden Roots 827 DVJ
- Page 1 Roots 827 DVJ gear end drive blower Installation Operation & Maintenance Manual...
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Page 2: Table Of Contents
Howden� is correctly lubricated before start-up� See • Unpack shipment carefully and check contents LUBRICATION� against packing List� Notify Howden if a shortage • Read starting checkpoints under OPERATION� appears� Run equipment briefly to check for installation •... -
Page 3: Safety Precautions
Foreword Warning A blower is a precision engineering product with It is essential that anyone involved in the instal- very fine clearances between the twin impellers and lation and operation of positive displacement air between the impellers and the casing� As there is no blowers, must have read and understood these contact between the moving parts internal lubrication instructions. -
Page 4: Installation
Installation Do not V-belt drive the 827 DVJ which is Gear End running the blower� After coating and before running driven� The addition of belt forces could cause some coated surfaces may even be touching� After undesired and uneven gear contact and damage the running the coated surfaces may have abraded areas blower�... - Page 5 “Two alternative curing methods are acceptable� Let nearly vertical as possible� set for 1-1/2 hours minimum at room temperature When blower is furnished mounted on a baseplate, ≥ 70°F or if coating is applied below 70°F, allow to with or without a driver, use of lifting slings passing cure overnight in shop ambient temperatures (not under the base flange is required�...
- Page 6 With the mounting plate in place and leveled set the the gap must be established with the motor armature blower on it without bolting and check for rocking� If on its electrical center if endplay exists� it is not solid, determine the total thickness of shims The following requirements of a good installation are required under one foot to stop the rocking�...
- Page 7 Specific recommendations on an inlet against damage to the blower, especially when silencing can be obtained from Howden� an inlet filter is not used, install a substantial screen of After piping is completed, and before applying power, 16 mesh backed with hardware cloth at or near the rotate the drive shaft by hand again�...
- Page 8 GEA30580_Rev_11.15...
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Page 9: Lubrication
Lubrication Table 2 - Lubricant Recommended A very simple lubrication system is employed in these Viscosity Range Ambient Temperature SSU @ 100°F (38°C) blowers� All friction parts—gears, bearings and oil Above 90°F (32°C) seals—are lubricated by the action of oil slingers 32°... -
Page 10: Vibration Assessment Criteria
touch, indicating impeller rubs� Be aware of any suggestions on various problems that may appear� noticeable increase in vibration� The blower should now be ready for continuous duty Assuming that all trials have been satisfactory, or that operation at full load� During the first new days make necessary corrections have been made, the blower periodic checks to determine whether all conditions should now have a final check run of at least one... - Page 11 GEA30580_Rev_11.15...
- Page 12 Table 4 - 827 DVJ Parts List Item Number Quantity Used Identification Headplate Gearbox 1 set Gear Cover Gasket covers Nameplate Installation tag Shim set Cylinder 12 & 13 Impeller Bearing Dowel pin cylinder Spring pin Key-coupling Self-tappign screw Breather Pipe plug Hex head cap screw Hex head cap screw...
- Page 13 GEA30580_Rev_11.15...
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Page 14: Troubleshooting
Trouble Shooting Checklist Trouble Item Possible Cause Remedy Speed too low Check by tachometer and compare with speed on Roots Order Acknowledgement� No flow Wrong rotation Compare actual rotation, change driver rotation if Obstruction in piping wrong� Check piping valve, silencer, to assure open flow path�... - Page 15 GEA30580_Rev_11�15...
- Page 16 Howden Roots Howden Roots 900 W� Mount St� Connersville Indiana 47331 Tel: +1 765 827 9200 Web: www�howden�com ©Howden Group Limited� All rights reserved� 2015� GEA30580_Rev_11�15 Howden and the flying H logo are registered trade marks belonging to Howden Group Limited�...
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