screw conveyor corporation preventative maintenance ... presentation 2019 (2).pdf · screw conveyor...
TRANSCRIPT
![Page 1: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/1.jpg)
Screw Conveyor Corporation Preventative Maintenance
![Page 2: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/2.jpg)
![Page 3: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/3.jpg)
LOCKOUT / TAGOUTAlways refer to your safety and installation manuals.
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Always Replace Safety Stickers….
![Page 5: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/5.jpg)
Wear at Inlet/Feed Locations (Screw Flights and Pipe)
Screw Flight (Outer Edge)
Pipe Outer Surface
What can you do! Thicker flights, Abrasive resistant materials, Hard Surfacing
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Wear at Hanger locations (Hanger bearings and shafts)
What do you do! Check the required Trough Loading (Not exceeding a 45% trough load)
Hanger Bearing
Coupling / Hanger end shaft
Hanger Frame
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Screw Junctions (Flight incorrect mounting methods and excess
trough loading contributes to ware)
Flights at 180° (One flight to the other)
Designed Trough loading (No higher than 45% loaded) What do you do! Check the designed Trough Loading
(Not exceeding a 45% trough load) Rotate flights 180 degree
![Page 8: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/8.jpg)
Screw Junctions (Cont.) (Trough Wear)
Ware at trough junctions (Before and after the flanges)
What do you do! Check the designed Trough Loading (Not exceeding a 45% trough load) Rotate flights 180 degree
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Coupling Bolts (CEMA standard thread lengths and Torque
requirements)
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Coupling bolt over tightening and pipe constrictions
Pipe breaking/ Cracks
Over torqued non standard bolts (Constriction of the pipe)
What to do! Use CEMA standard coupling bolts.
![Page 11: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/11.jpg)
Over tightened coupling bolt Example
Big, no! no!
Non standard bolt using washers
Don’t be this guy…
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Alignments issues
Alignment Issues
90% of breaks and damage problems are due to alignment issues.
Support systems adequately plum
Make sure the conveyor is installed correct and straight
![Page 13: Screw Conveyor Corporation Preventative Maintenance ... Presentation 2019 (2).pdf · Screw Conveyor Corporation Preventative Maintenance. Introduction. LOCKOUT / TAGOUT. Always refer](https://reader030.vdocuments.us/reader030/viewer/2022040102/5e92cb6b05f739768c433391/html5/thumbnails/13.jpg)
How to tell a miss alignment issue
Good bearing (Centered and round)
Bad bearing (Wear to one side and egg sha
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Extreme wear
Don’t let this happen. Fix the alignment issue!
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