Service Instructions. Link-Belt Screw Conveyor. Safety Operation Maintenance Installation Instructions

Transcription

1 Service Instructions Link-Belt Screw Conveyor Safety Operation Maintenance Installation Instructions

2 TABLE OF CONTENTS A. Safety Instructions... 3 General Safety Instructions... 4 B. Operating Procedures Initial Startup (Without Material)... 6 Initial Startup (With Material)... 7 C. Maintenance General... 8 Hangers -Type Type Type Type Type Type Trough End Bearings Double Ball Bearing Blocks Flanged Tapered Roller Bearing Block D. Installation Receiving and Inspection.17 Conventional Conveyor Screws..17 Quik-Link Screws...19 Split Flight Couplings.20 E. Recommended Spare Parts..21 2

3 To our Customer: The reliable operation and long service life of Link-Belt screw conveyors depend to a great extent on the care taken during installation, operation, and the degree of maintenance. Because of variations in length and installation conditions, screw conveyors are usually shipped as sub assemblies. All components are manufactured to the standards of the Conveyor Equipment Manufacturers' Association (CEMA). Syntron Material Handling will design and manufacture special components for unusual requirements. Conveyors can be ordered as complete units, (some assembly of drive components is required), shop assembled and match-marked before shipping, or as individual components to be aligned and assembled in the field. When Syntron Material Handling engineers the conveyor, complete specification drawings are furnished. Supplementary instructions should be followed for components not furnished by Syntron Material Handling. IMPORTANT! Components installed without approval of Syntron Material Handling become the sole responsibility of the purchaser or final user. SAFETY: Safety is a basic factor that must be considered at all times in the operation and maintenance of mechanical equipment. Use of proper tools and methods can prevent serious accidents that may result in injury to you and your fellow workers. Screw conveyor accidents can be avoided by implementation and enforcement of an in-plant safety program, and by training employees to follow certain basic safety rules: Covers, gratings, and guards shall be securely fastened before operating the conveyor. Conveyors should be provided with solid covers, securely fastened. When an exposed feed opening is required, it should be covered with a securely fastened grating cover. If an open housing is functionally necessary, the entire conveyor should be guarded by a fence or railing. Moving drive components shall be guarded. Never step or walk on covers, gratings, or guards. Lock out power before removing covers, gratings, or guards by padlocking the main disconnect in the OFF position. A number of safety precautions are listed throughout this manual. Study them carefully and follow them; insist that those working with you do the same. Remember - an accident is usually caused by someone's carelessness or negligence. The precautions listed may not necessarily be all-inclusive and others might occur to the user which are peculiar to a particular operation or industry. Conveyor assemblies or components must be installed, maintained and operated in such a manner as to comply with the Occupational Safety and Health Act, all state and local regulations, and the American National Standard Institute safety code. CAUTION At all times - this conveyor must be operated in accordance with the instructions in this manual and on the labels attached to the equipment. Labels are illustrated on pages 4 and 5. 3

4 Warning and Safety Instruction decals, Figure 1, are installed on all troughs and covers. Caution decal Figure 2 is installed on all guards and access doors. Make sure these decals are not obscured. If decals become unreadable or have been removed, Syntron Material Handling, upon request, will furnish new decals free of charge. The Conveyor Equipment Manufacturers' Association (CEMA) has produced an audio-visual presentation entitled "Safer Operation of Screw Conveyors - Three Basic Rules". This presentation (slides and a voice tape) is available on loan from Syntron Material Handling or can be purchased direct from CEMA. CEMA also has a video tape of this presentation available. For further details contact Syntron Material Handling. GENERAL SAFETY PRECAUTIONS Taking into consideration all of the physical aspects of the installation, any or all of the following safeguards may be required to protect the operators and those working in the immediate area of the conveyor. 1. COVERS and GRATINGS. Use rugged gratings in all loading areas and solid covers in other areas. CAUTION Covers, guards and grating at inlet points must be such that personnel cannot be injured by the screw. (FIGURE 1) (Installed on all Troughs and Covers) 2. GUARDS. For protection of the operator and other persons in the working area, purchaser should provide guards for all exposed equipment such as drives, gears, shafts, couplings, etc. 4

5 (FIGURE 2) (Installed on all Guards and Access Doors) 3. ELECTRICAL. Electrical equipment must conform to the National Electrical Code, The National Electrical Safety Code and other local or national codes. Requirements of the operating equipment should be considered for the following functions: a. Overload protection. Devices such as shear pins, torque limiters, etc., to shut off power whenever operation of conveyor is stopped as a result of excessive material, foreign objects, excessively large lumps, etc. b. No-speed Protection. Devices such as zero-speed switches to shut off power in the event of any incident which might cause conveyor to cease operating. c. Safety shut-off switch with power lockout provision at conveyor drive. d. Emergency stop switches readily accessible wherever required. e. Electrical interlocking to shut down feeding conveyor whenever a receiving conveyor stop. f. Special enclosures for motors and controls for hazardous atmospheric conditions. PRECAUTIONS FOR HAZARDOUS OPERATIONS CAUTION Standard Link-Belt conveyors are not equipped to operate under conditions which are hazardous, nor with any hazardous materials. The manufacturer should be consulted if there is any indication that a hazardous condition or material is involved. Several situations may create these conditions. A few of the more common follows: 1. HAZARDOUS CONDITIONS: Where the product area is under pressure of vacuum, or the trough is provided with jackets for heating or cooling, special precautions are required. 2. HAZARDOUS MATERIAL: These may be explosive, flammable, toxic, noxious, etc. Special provisions for safety are required. 3. HAZARDOUS LOCATIONS: Where, without protection, persons may be injured by contact with conveyor or material, if conveyor blocks a walkway, provide a crossover stairway or ramp for passage of personnel. If installed overhead, minimum clearance should be 7 feet. 5

6 4. HANDLING FOODSTUFFS: Subjects conveyors to special codes for materials, construction, location, accessibility. Investigate before ordering standard components. Food conveyors often require hinged doors for inspection or drop-bottom troughs for cleaning. Special precautions should be taken for protection of personnel against contact with screw. Extensive use of padlocks, with keys in the hands of management personnel, is one means frequently used. OPERATION SAFETY Only persons completely familiar with the following precautions should be permitted to operate the conveyor. The operator should thoroughly understand these instructions before attempting to use the conveyor. CAUTION 1. ALWAYS operate the conveyor in accordance with these instructions and those on the hazard label Figures 1 and 2, pages 4 and DO NOT put conveyor to any other use than that for which it was designed. 3. NEVER poke or prod material in conveyor with bar or stick inserted through openings while conveyor is running. 4. ALWAYS have a clear view of conveyor loading and unloading points and all safety devices. 5. KEEP area around conveyor, drive, and controls station, free of debris and obstacles. CAUTION Failure to follow these precautions may result in serious personal injury or damage to equipment. OPERATION - Initial Startup (Without Material) 1. Add oil to drive in accordance with manufacturer's instructions. 6

7 CAUTION Screw conveyor drive is generally shipped without oil. 2. Make sure before initial startup that conveyor is empty and end bearings and hangers are lubricated. 3. If conveyor is part of a material handling system, make certain the conveyor controls are interlocked electrically with those for other units in systems. 4. Check direction of conveyor rotation in each unit by observing tail shaft rotation. 5. Operate conveyor while empty for several hours, making a continuous check for heating of bearings, misalignment of drive, and noisy operation. If any of these occur proceed as follows: a. If anti-friction bearings are used, check supply of lubricant. Either too little or too much lubrication can cause high operating temperatures. CAUTION Before removing covers for further checking, the circuit should be opened at the switch box, and the switch should be padlocked in the OFF position. b. Check for misalignment in trough ends, screws and hangers. Loosen, and readjust or shim if necessary. If unable to eliminate misalignment, check parts for possible damage during shipment. c. Check assembly and mounting bolts. OPERATION - Initial Startup (With Material) BEFORE OPERATING 1. Check that the conveyor discharge is clear. 2. Start to feed material and then increase feed rate gradually until rated capacity is reached. 3. Stop and start conveyors several times, and allow to operate for several hours. CAUTION Before removing covers for further checking, the circuit should be opened at the switch box, and the switch should be padlocked in the OFF position. 4. Remove covers and check coupling bolts for tightness. Check hanger bearings, realign if necessary, and retighten mounting bolts. 5. Replace covers. 7

8 OPERATION - Extended Shut Down If conveyor is to be inoperative for a long period of time, it is advisable to permit it to operate for a period of time after the feed has been cut off in order to discharge as much material as possible from the trough. However, there is a nominal clearance of 1/2" between the screw and the trough and this procedure will allow a small amount of material to remain in the trough. Therefore, if the material is corrosive, or hygroscopic or has a tendency to harden or set up, the trough should be cleaned completely after the conveyor is shut down. CAUTION Before cleaning screw, the circuit should be opened at the switch box, and the switch should be padlocked in the OFF position. Servicing of Conveyor Components In most cases this involves removing an unserviceable part and installing a replacement. The installation procedures are outlined in the section entitled ERECTION. Specific instructions for the removal of various conveyor components follow. MAINTENANCE Establish routine periodic inspection of the entire conveyor to insure continuous maximum operating performance. Practice good housekeeping. Keep the area around the conveyor and drive clean and free of obstacles to provide easy access and to avoid interference with the function of the conveyor or drive. CAUTION Before performing any maintenance, the circuit should be opened at the switch box, and the switch should be padlocked in the OFF position. CONVENTIONAL CONVEYOR SCREWS To remove a section or sections of conventional conveyor screw, proceed from end opposite the drive. Remove trough end, conveyor screw sections, coupling shafts, and hangers until all screw sections have been removed, or until damaged or worn section is removed. To reassemble, follow above steps in reverse order or see assembly instructions on Page 18. REMOVAL OF QUIK-LINK CONVEYOR SCREW (FIGURE 3) 8

9 QUIK-LINK CONVEYOR SCREWS 1. Removal of Quik-Link screw section includes removal of coupling shaft and hanger at plain end. See Fig. 3 where section is being removed. 2. Rotate entire screw so that Quik-Link key of section is on top, and key of section is on bottom. 3. Remove coupling bolts from Quik-Link end of section. 4. Remove coupling bolts and key from section. 5. Remove mounting bolts from hanger. 6. Lift conveyor screw hanger and coupling shaft from adjoining screw section. Shift position of screw section to clear hanger and remove from trough. To reassemble, follow above steps in reverse order or see assembly instructions on Page 18. Sections of conventional conveyor screw equipped with split flight couplings may be removed individually with a minimum of disturbance of adjacent sections. COUPLINGS AND HANGERS Replace couplings and hanger bearings when wear in either part exceeds 1/8". Replace coupling bolts when excessive wear causes play. HANGER ASSEMBLY TYPE 270 (FIGURE 4) 9

10 1. Screw lock nut onto pipe of top bar assembly. 2. Screw bearing onto pipe using Loctite No. 277 on threads. Adjust bearings to proper mounting dimension and lock with nut. 3. Assemble grease pipe to bearing through pipe of top bar assembly. 4. Bolt hanger assembly to trough. Note the relationship of bearing locking collar to material flow direction. HANGER ASSEMBLY TYPE 220, 226, & Place bearing halves on bare portion of coupling shaft. (If one half has a hole, place it on top). 2. Place straps around bearing halves and fasten with bolts. 3. If this pipe is a grease lubricated hanger, install grease pipe before bolting straps. 4. Mount top bar to straps using bolts. Review exploded view for placement of spacers and retainer cups. (326 only) 5. Assemble to trough using clip angles and bolts. (326 only) HANGER ASSEMBLY TYPE 226 HANGER ASSEMBLY TYPE 220 (FIGURE 5) (FIGURE 6) 10

11 HANGER ASSEMBLY TYPE 326 (FIGURE 7) HANGER ASSEMBLY TYPE 216 & Drop bottom bearing half into strap and place on bare portion of coupling shaft. 2. Drop in top bearing half and fasten in place with bolt. 3. Mount top bar to strap using bolts. Review exploded view for placement of spacers and retainer clips. (316 only) 4. If this is a grease lubricated hanger install grease pipe. 5. Assemble to trough using clip angles and bolts. (316 only) 11

12 HANGER ASSEMBLY TYPE 216 HANGER ASSEMBLY TYPE 316 (FIGURE 8) (FIGURE 9) Double Ball Bearing Blocks (FIGURE 10) To replace elements of trough ends with double ball bearing blocks, proceed as follows: Assemblies without trough ends seals V, Fig

13 1. Thrust bearings are usually located at the drive end of conveyor. Remove drive components such as sprockets, couplings, speed reducers, etc., which would prevent removal of the bearing assembly. 2. Remove conveyor coupling bolts. 3. Support conveyor in trough, and remove bolts. 4. Remove drive shaft with bearing assembly as a unit from the trough end plate. 5. Remove snap ring from groove and slide from shaft at coupling end. 6. Remove washer. 7. Loosen setscrews and slide bearing from shaft at coupling end. 8. Remove washer. 9. Remove snap ring from groove and slide from shaft. ASSEMBLIES WITH TROUGH END SEALS 10. Follow steps 1 through 3 above. 11. Remove shaft with bearing assembly and seal assembly from trough end as a unit. 12. Remove trough end seal from shaft at coupling end. 13. Follow steps 5 thru 9 above. To reassemble follow the above steps in reverse order. Flanged Blocks with Tapered Roller Bearings (FIGURE 11) 13

14 Item Description Item Description 1. Flange 6. End plate 3" & over 2. Housing 7. End Plate 3. Bearing cup 8. Sq. Head fastener 4. Bearing cone 9. Shim set 5. Lip seal 10. Drive shaft 11. End shaft A. Disassembly 1. Remove Housing - Remove six fasteners and slide housing forward off shaft. 2. Remove flange - Slide off shaft and discard shims between housing and flange. 3. Remove seals from housing and flange - Press seal housings evenly on face or tap lightly to remove without damage. 4. Remove cups from housing and flange - Tap cups lightly around circumference to remove without damaging bore. 5. Remove cones from shaft - Tap back of cone lightly using a brass rod to remove from shaft. 6. Clean - Clean housing, flange, shaft and seals thoroughly. Inspect all parts for excessive wear or damage. Install new seals where damage is evident. Keep parts clean. B. Reassembly 1. Lubricate shaft and bearing bore - Coat the shaft and bearing bore with oil or grease to facilitate assembly. 2. Assemble cones on shaft - Remove wrapping from cone assemblies and keep them clean. Use a brass bar, hardwood block or tube to tap or press cones onto shaft. 3. Lubricate cones - Apply grease liberally to cone assemblies by working it between rollers and cage assembly. 4. Install cups in housing and flange - Remove wrapping from cups and keep them clean. Start one cup in housing bore (thick side first). Then press or tap carefully without cocking until cup is seated against housing shoulder. Repeat with other cup and apply grease to cups. 5. Install seals - Press or tap seals into housing and flange. Flange seals should be installed and lips pointing away from each other. If housing seal is required its lip should be pointed toward outside of housing. (See parts identification figure.) 6. Assemble shaft in flange and housing - Insert shaft through flange seals using extreme care not to damage seal lips. Slide housing on shaft again using care not to damage seal lip, if present. Install square head fasteners to seat, cup and cone assemblies by tightening in such a manner as to assure an even gap around bearing housing and until a slight increased "drag" occurs while rotating shaft. Measure width of gap around housing. For proper clearance install a shim set thickness greater than the gap width by the amount shown in Table 1. 14

15 Shaft Diameter 1-1/ / / /16 Extra thickness.007".007".009",007".009".006" TABLE 1 Remove housing, install shim set and reassemble. Fill with proper grease per table 2. LUBRICATION: The lubrication schedule in table 2 is suggested as a general guide: Ambient Operating Bearing Suggested Conditions conditions operating greasing Use these greases temperature Intervals** or equivalent Dirt Moisture Load Speed Low High Light Slow to 6 months Clean Dry to to medium medium to 2 months High quality NLGI #1 or 2 Moderate Light Slow to 4 weeks Multi-purpose bearing greases to Dry to to are generally satisfactory Consultatlon with a reputable lubri- Dirty medium medium days cant supplier IS recommended Extreme Light Slow Dirt Dry to to Daily - flushing medium medium out dirt High humidity light Slow 1 to 4 weeks Mobile Oil Co. Mobilux EP2 Direct to to grease at Texaco. Inc RB2 water heavy medium shutdowns Shell Oil Co Alvania EP2 splash Heavy to 8 weeks Shell Oil Co Alyania EP2 to Slow very to 8 weeks Shell Oil Co Alvania heavy EP-RO Light Slow 1 to 4 weeks Esso Beacon 325 Possible to to grease at Texaco Inc 2346EP Low frost heavy medium shutdown Temp Shell Oil Co. Aeroshell 7A Clean Light Slow to Dry to to to 8 weeks Union all Co Unoba EP No 2 moderate medium medium Texaco Inc Hi -Temp Clean to Keystone Lubricants Co Dirty Dry Light Slow to 4 weeks No 89 Dow Chemical Co DC44 **Additional bearing protection or special sealing may be required. Consult Syntron Material Handling. TABLE 2-Grease Lubrication The specific application conditions such as exact hours of operation, temperature, dirt, moisture and speed govern the required lubrication cycle. This can be determined by inspection of the flushed-out lubricant after a trial period of operation. Add grease slowly and use enough to purge the bearing seals of old lubricant. Rotation of bearings during re-lubrication is advisable where good safety practice permits. Bearings should be inspected at least every six months. Any unusual noise or vibration should be investigated and corrected immediately. 15

16 REPLACEMENT PARTS When ordering replacement parts, refer to the Syntron Material Handling catalog and give a complete description and specifications of the parts required. Whenever possible specify catalog part numbers. Furnish your order number and, if known, the Syntron Material Handling order number on which the trough end assembly, was originally furnished. See page 22 for spare part recommendations. LUBRICATION-GENERAL Frequency of lubrication will depend on factors such as the nature of the application, bearing materials, and operating conditions. Weekly inspection and lubrication is advisable until sufficient experience permits establishment of a longer interval. DRIVE Lubricate the drive following manufacturer's instructions provided for the speed reducer and the other drive components requiring lubrication. CAUTION Screw conveyor drive is generally shipped without oil. BALL OR ROLLER BEARINGS Ball and roller bearings may be furnished in trough ends or hangers. Lubricate in accordance with manufacturer's instructions provided. BABBITTED OR BRONZE BUSHED BEARINGS Babbitted or bronze bushed bearings may be furnished in trough ends or hangers. When provision is made for grease lubrication, follow the table below for recommended grades. Operating Use grease equivalent temperatures to NLGI number 32 to or 3 32 to or 1 OTHER BEARINGS For oilless or graphite bronze, hard iron, oil impregnated wood, or plastic laminate hanger bearings, no lubrication is required. 16

17 The components illustrated in the photo above are only a few of the many types which are available for various applications and operating conditions. However, the basic function of each component remains the same, regardless of design variation. RECEIVING INSTALLATION Check all assemblies and parts against shipping papers, and inspect for damage upon arrival. Look for dented or bent troughs and bent flanges, flighting, pipe or hangers. Minor damage incurred in shipping can often be readily repaired in the field. For severely damaged parts, file an immediate claim with the carrier. Before proceeding with erection, make sure that all supplementary instructions are included. If anything is missing consult Syntron Material Handling. ERECTION Screw conveyor troughs must be assembled straight and true with no distortion. If anchor bolts are not in line, either move them or slot the conveyor feet or saddle holes. Use shims as required to achieve correct alignment. Do not proceed with installation of shafts and screws until trough has been completely aligned and bolted down. See figure 12. (FIGURE 12) CONVENTIONAL CONVEYOR SCREWS 1. When shipped as loose parts, assemble bearings to trough end plates. 2. If trough ends are factory assembled with trough, check bearings and seals for possible misalignment, which may have occurred during shipment. Realign if necessary. 3. Place troughs and trough ends in proper sequence with discharge spouts properly located. Connect the joints loosely. Do not tighten the bolts. Align trough bottom and centerline perfectly using piano wire as in Figure 13. Then tighten joint bolts and all anchor bolts. 4. Begin assembly of screw sections, working from the thrust end. (Drive shaft and thrust bearings are normally at the discharge end to place the conveyor screw in tension.) If conveyor is fitted with Quik- Link screws follow the instructions under "Quik-Link Screw Assembly." (FIGURE 13) 17

18 5. Place the first screw section in the trough, fitting it into the end shaft. Install coupling bolts. If reinforcing lugs are on ends of flighting, install screw so they are opposite the carrying side of the flight. 6. Insert coupling shaft into opposite end of conveyor pipe; install coupling bolts. Tighten snugly. Do not torque. 7. If screws are not close coupled, slide hanger over coupling and bolt to trough. 8. Pull conveyor screw away from discharge end of conveyor to seat the thrust connection and remove any play in coupling bolts. 9. Place next screw section in trough and fit onto coupling so that flighting end is about 180 degrees from end of flighting of first section (See Fig. 14). Install coupling bolts. (For close coupled conveyors without hangers: Assemble screws so that flighting at adjoining ends of screw sections align to provide a continuous surface. In the case of material supplied on orders for "components only" the coupling bolt holes are drilled only in one end of the coupling shafts and it will be necessary to mark and drill the other end in field. Remove shaft from screw before drilling. DO NOT USE SCREW PIPE AS DRILL JIG.) (FIGURE 14) 10. Insert coupling shaft into opposite end of pipe; install coupling bolts. Install hanger and pull out on pipe to remove any play (See Step 8). 11. Go back to hanger installed previously; center the bearing between ends of pipes, and tighten hangermounting bolts. Revolve screw to check alignment. If screw doesn't turn freely, adjust hanger mountings until it does. Then proceed with installation of next screw section. 12. Alternately assemble screw sections, couplings, and hangers as in Step 9 thru 11 until all screw sections except the last one have been installed. Remove trough end to install last section. 13. Install tail shaft through end bearing and fasten into last screw section with coupling bolts. Check freedom of rotation of entire screw. 14. When trough end seals are used, be sure shafts are centered in seal openings. 15. Tighten collar set screws in any anti-friction bearings in trough ends and hangers. Check and tighten all hanger assembly and mounting bolts. 16. Tighten packing gland type seals only enough to prevent leakage. If tightened excessively, they may impose a drag on the conveyor and wear rapidly. 17. Fill waste packed type seals with waste packing loosely but sufficiently to encircle the shaft and fill the corners, to prevent packing from rotating with the shaft. 18

19 NOTE: Waste pack seals should be mounted with large open area outboard. 18. Remove all debris from trough (bolts, nuts, shipping materials, etc.). Install covers in proper sequence to locate inlet openings. Handle covers with care to avoid warping and bending, and attach them with fasteners provided. Do not tighten excessively, especially when using gaskets, as leaks may occur when covers are permanently kinked. 19. Install drive at proper location in accordance with separate instructions provided. After electrical connections have been made and before handling any material, check screw rotation by observing tail shaft rotation. Incorrect screw rotation can result in serious damage to the conveyor and to related feeding, conveying, and drive equipment. If rotation is incorrect, have electrician reverse motor rotation. 20. Lubricate drive and all bearings in accordance with separate instructions. DRIVE IS SHIPPED WITHOUT OIL. CAUTION Make sure hazard labels affixed to troughs and/or covers are in place and not obscured. If decals become unreadable or have been removed, Syntron Material Handling, upon request, will furnish new decals free of charge. ERECTION (QUIK-LINK SCREW ASSEMBLY) When conveyor is equipped with exclusive LinkBelt Quik-Link screw, follow the procedures in paragraphs 1 thru 3 on page 18 and then proceed as follows: 1. Start assembly at drive end of conveyor, with slotted ends of screw sections toward drive end. 2. Install end shaft in drive end bearings. 3. Lower screw sections into place on shaft with Quik-Link keyway downward, Figure 15. Mount key and insert coupling bolts. Always tighten the coupling bolt that holds key in place first. 4. Install coupling shaft at plain end of screw. (FIGURE 15) 5. Install hanger on coupling shaft at plain end of screw and bolt to trough. 6. Rotate screw sections that have been installed so that end of flighting at plain end of last section installed will be about 180 degrees from end of flighting at Quik-Link end of next section to be installed. 7. After installing each screw section, pull last screw to take play out of coupling bolts and center the hanger bearing between the ends of the pipes. 8. When all screw sections are in place proceed per instructions 13 thru 20 on pages 19 and

20 SPLIT FLIGHT COUPLING AND SHAFTS 1. Assemble split flight couplings and shafts in accordance with Assembly A (Fig. 16) or Assembly B (Fig. 17) depending on assembly furnished. 2. If Assembly A is furnished, assemble on proper side of hanger so that hanger will be located at a trough joint. 3. Coupling bolt holes G (Assemblies A and B) must be drilled in field for assembly. 4. Insert and bolt pre-drilled end of shaft Number 5 into split flight coupling. Assembly B uses two Number 5 shafts. 5. Insert undrilled end of shaft Number 5 into adjoining screw section. 6. Draw split flight coupling into close contact with end of conveyor screw. 7. Align ends of flighting on split flight coupling and adjoining screw section to produce a continuous surface. 8. Mark location of coupling bolt holes G from conveyor screw to shaft Number Remove shaft Number 5 and drill bolt holes. Do not drill holes in assembly since close tolerance bolt holes in conveyor screw pipe might be damaged or enlarged if used as guide holes for drilling. (FIGURE 16) 10. Reassemble shaft Number 5 into conveyor on proper side of hanger to locate hanger at a trough joint. Insert coupling bolts and tighten. 11. Insert and bolt shaft Number 6 into adjoining screw section. 12. Align shafts Numbers 5 and 6. Position split flight coupling over ends of shafts so flighting at one end is aligned with flighting at end of close coupled screw section to produce a continuous surface. 13. Insert coupling bolts and tighten snugly. Do not torque. (FIGURE 17) 20

21 10. Reassemble shaft Number 5 into conveyor screw. 11. Align conveyor screws with Number 5 shafts in place and assemble split flight couplings and shaft Number 7 so that ends of flighting at hanger bearing space are approximately 1800 apart. 12. Adjust conveyor screws so that ends of flighting on screw sections and adjoining split flight couplings produce a continuous surface. 13. Insert coupling bolts and tighten snugly. Do not torque. RECOMMENDED SPARE PARTS The following recommendation is a guide only and does not necessarily cover all installations. Hanger Bearings: 10% of each size bearing. One set minimum. Coupling Shafts: 10% if Hard Iron bearings or Stellite. For each size one minimum. None if standard CFS shaft. Coupling Bolts: 4 for each spare coupling. End Bearings: 10% of each size. One minimum. Drive: One set reducer spare parts for each size. If 5 or more identical reducers, specify one complete reducer. Syntron Material Handling, LLC reserves the right to alter at any time without notice and without liability or other obligations on its part, materials, equipment specifications, and models. Syntron Material Handling, LLC also reserves the right to discontinue the manufacture of models, parts, and components thereof. 21

22 Corporate Office P.O. Box 1370 Tupelo, Mississippi Phone: Fax: Tupelo 2730 Hwy 145 South Saltillo, Mississippi Phone: Fax: Toll Free: Changshu #2 Road No. 1 Changshu Export Processing Zone Changshu, Jiangsu, China Phone: Fax: info@syntronmh.com Form No. 3153_ Printed in U.S.A