screw conveyor catalog & engineering manual - OrthmanConveyors shall not be operated unless all covers and/or guards for the conveyor and drive unit are in place. If the conveyor is to be opened for inspection cleaning, maintenance or observation, the electric power to the motor driving the conveyor must be. LOCKED OUT in such a manner that the conveyor cannot be.screw conveyor catalog engineering manual,Screw Conveyors - Continental ConveyorIt is with great pleasure that Continental presents this Screw. Conveyor Catalogue and Engineering. Manual which covers our complete line of screw conveyors and accessories. The information compiled in this manual is the result of many years' experience in the design and manufacture of bulk material handling.