Screw Conveyor Corporation Preventative Maintenance LOCKOUT / - PowerPoint PPT Presentation

Screw Conveyor Corporation Preventative Maintenance

LOCKOUT / TAGOUT Always refer to your safety and installation manuals.

Always Replace Safety Stickers….

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

Wear at Hanger locations (Hanger bearings and shafts) Hanger Frame Hanger Bearing Coupling / Hanger end shaft What do you do! Check the required Trough Loading (Not exceeding a 45% trough load)

Screw Junctions (Flight incorrect mounting methods and excess trough loading contributes to ware) Flights at 180° (One flight to the other) What do you do! Check the designed Trough Loading Designed Trough loading (No higher than 45% loaded) (Not exceeding a 45% trough load) Rotate flights 180 degree

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

Coupling Bolts (CEMA standard thread lengths and Torque requirements)

Coupling bolt over tightening and pipe constrictions Over torqued non standard bolts (Constriction of the pipe) Pipe breaking/ Cracks What to do! Use CEMA standard coupling bolts.

Over tightened coupling bolt Example Don’t be this guy… Big, no! no! Non standard bolt using washers

Alignments issues Alignment Issues Support systems adequately plum Make sure the conveyor is installed correct and straight 90% of breaks and damage problems are due to alignment issues.

How to tell a miss alignment issue Good bearing (Centered and round) Bad bearing (Wear to one side and egg sha

Extreme wear Don’t let this happen. Fix the alignment issue!