1 safety , Installation &. Service Instructions For BUCKET ELEVATORS. Warning: Important information contained in this manual to be reviewed and followed by contractor, installer, owner and operator. 700 Hoffman St. 915 W. Ash 781 Church St. 7807 Doe Avenue Hammond, IN 46327 Chanute, KS 66720 Winona, MS 38967 Visalia, CA 93291. PH: 219-931-1450 PH: 620-431-0440 PH: 662-283-3142 PH: 559-651-2131. Fax: 800-805-6527 Fax: 800-213-3086 Fax: 800-213-3084 Fax: 800-651-2135. 2. INTRODUCTION: This manual contains Instructions for the safety , Installation , Operation and Maintenance of Bucket Elevators as manufactured by Screw Conveyor Corporation (SCC). The reliability and good Service life of this equipment depends to a very large extent on the care taken in installing and otherwise preparing this equipment for its intended use.
2 Some bucket elevators are ordered and manufactured based on catalog information and engineering drawings are not required. Many others however are provided with drawings. Some are purchased with the requirement that assembly and detailed drawings are needed in order to produce the unit to accommodate a specific application. The drawings therefore serve the purpose of describing to the buyer or installer exactly what is being furnished and this enables the buyer or installer to determine more specifically what other equipment is needed to connect to the input of the elevator as well as connect to the output from it. Drawings are not however considered design drawings for the concept of a process or system.
3 There are several kinds of bucket elevators discussed in this manual. 1. The Double Trunk High Capacity Bucket Elevator. 2. Large engineered Double-Trunk Elevators with pulleys 48 diameter and larger, some with bent knee pulleys designed for high speed. 3. The Industrial Type Single Casing Elevators which may be furnished as Belt-Type or Chain-Type, and as Centrifugal Discharge or Continuous (Gravity) Discharge. 4. Mill Duty Centrifugal Chain Type Bucket Elevators. 5. Super-Capacity Continuous Elevators with buckets suspended between two strands of roller chain. The instruction for erecting any of these Bucket Elevators is generally the same. At least the principles for supporting, bracing, and cable guying follow the same general rules found here.
4 If specific additional Instructions are needed, contact Screw Conveyor Corporation. 3. safety RESPONSIBILITY: Electrical controls, machinery, guards, railings, walk-ways, arrangement of Installation , training of personnel, etc. are necessary ingredients for a safe working place. It is the responsibility of the contractor, installer and owner, user to supplement the materials and services furnished by Screw Conveyor Corporation with these necessary items to make the Installation comply with the law. safety : Most accidents involving property damage or personal injury are the result of someone's carelessness or negligence. In order to avoid such accidents, one of the many things that must be done is to make machinery that eliminates in so far as possible an unsafe or hazardous condition.
5 Bucket Elevators must be installed, maintained and operated with the following minimum provisions: 1. Bucket Elevators shall not be operated unless the elevator housing completely encloses the moving elements and all power transmission guards are in place. The following warning signs (see CEMA safety Label sheet SC-4) are attached to all bucket elevator housings in locations as specified. Signs should not be removed from housings or be painted over! Replacements can be ordered from Conveyor Equipment Manufacturer's Association (CEMA). 2. Do not overload the elevator or use it for anything but its intended use. 3. Feed openings for shovel or other manual or mechanical equipment shall be constructed in such a way that the conveyor and elevator rotating and moving parts are enclosed.
6 Screw Conveyor Corporation can assist in the selection and design of the devices or equipment that will aid the owner and installer in preparing a safe Installation and a safe working place. Zero speed switches and other electrical devices can sense elevator operation so that operations can be interrupted and/or alarms can be actuated. There are many kinds of electrical interlocking devices for conveyors, elevators and conveyor systems such that if one conveyor or elevator in a system or process is stopped, other equipment feeding it, or following it, can also be automatically stopped and thus prevent overloading at transfer points. CEMA safety Labels Placement Guidelines Product: Screw Conveyors Equipment: Bucket Conveyor To be placed on re- movable guards to Exposed moving parts can cause warn that operation severe injury of the machinery LOCK OUT POWER with guards removed before removing would expose CHS930001 guard chains, belts, gears, shafts, pulleys, cou- A.
7 Plings, etc. which create hazards USE LABEL A ON BELT GUARD. USE LABEL B ON EACH SIDE OF INTAKE, ALL BOLTED PANELS AND INSPECTION. DOORS, AND BOTH SIDES OF SPLIT HOOD. NEAR SIDE. FAR SIDE. To be placed on intakes, bolted guards and panels, hoods and doors of bucket conveyors to provide warn- ing against ex- posing buck- ets and mov- ing parts while in operation. CVS930012. Exposed buckets and moving parts can cause severe injury LOCK OUT POWER. before removing cover or servicing B . SC-4. SCREW CONVEYOR CORPORATION. safety LABELS. INFORMATION AND PLACEMENT GUIDELINES. S a f e t y i s a p r i m e c o n s i d e r a t i o n i n t h e d e s i g n , m a n u f a c t u r e , i n s t a l l a t i o n , u s e , m a i n t e n a n c e o f c o n ve yo r s , i t i s well recognized that in many instances, safety labels can increase operator and maintenance personnel awareness o f t h e i n h e r e n t h a z a r d s i n vo l ve d i n c o n ve yo r s o r o t h e r t yp e s o f m o vin g e q u i p m e n t.
8 T h e p r o c e s s o f d e s i g n i n g a n d i n s t a l l i n g c o n ve yo r s s h o u l d b e s u p e r vi s e d b y q u a l i f i e d p e r s o n n e l . T h e o p e r a t i o n a n d m a i n t e n a n c e o f c o n ve yo r s s h o u l d a l s o b e p e r f o r m e d a n d s u p e r vi s e d b y p e r s o n n e l t r a i n e d t o s a f e l y d o s o . T h e p u r p o s e o f t h i s p r o g r a m i s t o p r o vi d e g u i d e l i n e s f o r t h e s e l e c t i o n a n d a p p l i c a t i o n o f s a f e t y l a b e l s f o r u s e o n c o n ve yo r s a n d r e l a t e d m a t e r i a l h a n d l i n g e q u i p m e n t . A s p a r t o f t h e c o n ve yo r u s e r s ' c o m p r e h e n s i ve s a f e t y p r o g r a m , t h e u s e r s o f c o n ve yo r s s h a l l i n s p e c t a n d r e vie w s a f e t y l a b e l s t o i n s u r e t h e i r i n t e g r i t y a n d m a x i m i z e t h e i r e f f e c t i ve n e s s i n i n j u r y p r e ve n t i o n.
9 ANSI CEMA safety LABELS. 4 . 15 SIGNAL WORD: T h e w o r d o r w o r d s t h a t d e s i g n a t e a d e g r e e o r l e ve l o f h a z a r d s e r i o u s n e s s . T h e s i g n a l w o r d s f o r p r o d u c t s a f e t y signs are DANGER, WARNING AND CAUTION. 4 . 15 .1 D A N G E R : I n d i c a t e s a n i m m i n e n t l y h a z a r d o u s s i t u a t i o n w h i c h , i f n o t a vo i d e d , w i l l r e s u l t i n d e a t h o r s e r i o u s i n j u r y. This signal w ord is to be limited to the most extreme situations. 4 . 15 .2 W A R N I N G : I n d i c a t e s a p o t e n t i a l l y h a z a r d o u s s i t u a t i o n w h i c h , i f n o t a vo i d e d , c o u l d r e s u l t i n d e a t h o r s e r i o u s i n j u r y.
10 4 . 15 .3 C A U T I O N : I n d i c a t e s a p o t e n t i a l l y h a z a r d o u s s i t u a t i o n w h i c h , i f n o t a vo i d e d , m a y r e s u l t i n m i n o r o r m o d e r a t e i n j u r y. It may also be used to alert against unsafe practices. NOTE: DANGER or WARNING should not be considered for property damage accidents unless personal injury risk A p p r o p r i a t e t o t h e s e l e ve l s i s a l s o i n vo l ve d . C A U T I O N i s p e r m i t t e d f o r p r o p e r t y- d a m a g e - o n l y a c c i d e n t s . safety labels can be obtained from: Conveyor Equipment Manufacturers Association 5672 Strand Ct., Suite 2. Naples FL.