Model 6 Grinder - M & M Equip

Model 6 Grinder

AAM−136 Revised June 5, 2012 1

Next Generation of Grinding Technology

Grinding


TABLE OF CONTENTS

GENERAL SAFETYINFORMATION 3. . . . . . . . . . . . . . . . .

SAFETY LABEL PLACEMENT 5. . .

INTRODUCTION 6. . . . . . . . . . . . . . . .GENERAL DESCRIPTION 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GRINDER APPLICATIONS 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION INSTRUCTIONS 7.CORRESPONDENCE 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SHIPPING INFORMATION 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .UNPACKING / UNCRATING 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .LIFT EQUIPMENT & LIFTING REQUIREMENTS 7. . . . . . . . . . . . . . . .PRE−INSTALLATION CHECKS 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .LOCATION (Fig. 4 ) 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ANCHORING 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DRAINAGE SLOPE (Fig. 5 ) 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ELECTRICAL 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIRECTION OF ROTATION (Fig. 6 ) 8. . . . . . . . . . . . . . . . . . . . . . . . . . .

DISASSEMBLY INSTRUCTIONS 9. .REQUIRED TOOLS (Fig. 7 ) 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 1: REMOVE ORIFICE PLATE GUARD (Fig. 8 ) 9. . . . . . . . . . . . .STEP 2: REMOVE RING (Fig. 9 ) 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 3: REMOVE PLATE (Fig. 10 ) 9. . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 4: REMOVE KNIFEHOLDER (Fig. 11 ) 10. . . . . . . . . . . . . . . . . . . .STEP 5: REMOVE CENTERING PIN (Fig. 12 ) 10. . . . . . . . . . . . . . . . . . .STEP 6: REMOVE SPRING (Fig. 13 ) 10. . . . . . . . . . . . . . . . . . . . . . . . . .STEP 7: REMOVE FEED SCREW 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 8: FEED SCREW SUPPORT CART (Fig. 14 ) 10. . . . . . . . . . . . . . . .

CLEANING INSTRUCTIONS 11. . . . .

ASSEMBLY INSTRUCTIONS 13. . . . .STEP 1: INSTALL FEED SCREW/ 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 2: CHECK FEED SCREW HEAD SPACE (Fig. 16 ) 13. . . . . . . . . . .STEP 3: ADJUST FEED SCREW HEAD SPACE (Fig. 17 ) 13. . . . . . . . . .STEP 4: INSTALL EXCLUDER SEAL AND INSTALL FEED SCREW(Fig. 18 ) 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 5: INSTALL KNIFE TENSION SPRING (Fig. 19 ) 14. . . . . . . . . . . .STEP 6: INSTALL CENTERING PIN (Fig. 20 ) 14. . . . . . . . . . . . . . . . . . .STEP 7: INSTALL KNIFEHOLDER (Fig. 21 ) 14. . . . . . . . . . . . . . . . . . . .STEP 8: INSTALL PLATE AND (OPTIONAL BCA ONLY) BUSHING(Fig. 22 ) 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STEP 9: (Optional) INSTALLATION OF TEARDROP HOLE PLATES(Fig. 23 ) 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .STEP 10: INSTALL GRINDER RING (Fig. 24 ) 15. . . . . . . . . . . . . . . . . . .STEP 11: INSTALL ORIFICE PLATE GUARD (Fig. 25 ) 16. . . . . . . . . . .

OPERATING INSTRUCTIONS 17. . . .HOPPER COVER SAFETY INTERLOCK SWITCH(OPTIONAL) (Fig. 26 ) 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HOPPER GUARD (Fig. 27 ) 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PRE−OPERATION CHECKS 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RECOMMENDED FEEDING METHODS. 17. . . . . . . . . . . . . . . . . . . . . . .CONVEYOR FEEDING (Fig. 28 ) 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .COLUMN DUMPER FEEDING (Fig. 29 ) 18. . . . . . . . . . . . . . . . . . . . . . . .MANUAL FEEDING (Fig. 30 ) 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .KEEP FEED SCREW COVERED (Fig. 30 ) 18. . . . . . . . . . . . . . . . . . . . . .KEEP HANDS AND FINGERS AWAY (Fig. 31 ) 19. . . . . . . . . . . . . . . . . .EMERGENCY STOPPING (Fig. 32 ) 19. . . . . . . . . . . . . . . . . . . . . . . . . . . .NORMAL SHUT−DOWN 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INSPECTION & MAINTENANCE 20.MAINTENANCE SCHEDULING 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSPECTION/MAINTENANCE SCHEDULE 20. . . . . . . . . . . . . . . . . . . .DRIVE BELT PULLEY ALIGNMENT 20. . . . . . . . . . . . . . . . . . . . . . . . . .BELT TENSION 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .UNDERMOUNT FRAMES (Fig. 36 ) 21. . . . . . . . . . . . . . . . . . . . . . . . . . .MOTOR 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LUBRICATION INSTRUCTIONS 22. .GEARBOX OUTER SEAL (Fig. 37 ) 22. . . . . . . . . . . . . . . . . . . . . . . . . . . .

LUBRICATION CHART 23. . . . . . . . . .

TROUBLESHOOTING GUIDE 25. . . .

REPAIR / REBUILD OF PARTS 28. . . .PLATE RETAINING RING (Fig. 38 ) 28. . . . . . . . . . . . . . . . . . . . . . . . . . .ORIFICE PLATES (Fig. 39 , 40 , 41 ) 28. . . . . . . . . . . . . . . . . . . . . . . . . . . .KNIFE INSERT REMOVAL (Fig. 42 ) 29. . . . . . . . . . . . . . . . . . . . . . . . . . .KNIFE INSERT INSTALLATION (Fig. 43 ) 29. . . . . . . . . . . . . . . . . . . . . .CENTERING PIN AND BUSHING (Fig. 44 ) 29. . . . . . . . . . . . . . . . . . . . .KNIFE TENSION SPRING (Fig. 45 ) 29. . . . . . . . . . . . . . . . . . . . . . . . . . .BASIC HEAD REPAIR/REBUILD (Fig. 46 ) 30. . . . . . . . . . . . . . . . . . . . . .FEED SCREW REPAIR (Fig. 47 ) 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CHECKING FOR FLATNESS (Fig. 48 ) 31. . . . . . . . . . . . . . . . . . . . . . . . .

WARRANTY 32. . . . . . . . . . . . . . . . . . . . .


GENERAL SAFETY INFORMATION

WARNINGTurn off and lock out machine power source(s) following the lockout / tagout proceduresdescribed in OSHA CFR 29 1910.147 Code of Federal Regulations (or equivalent).

Where references to shutting off and locking out power are made in this manual, unlessindicated otherwise, make sure that the power to all systems, whether electrical, hydraulicor other, is off and locked out with a padlock.

If your unit is part of a system powered by a central electric or hydraulic power station, thelock−out must be located in the grinder power circuit.

1. Do not, under any circumstances or for anyreason, place hands, feet or any part of yourbody inside the hopper when the unit isoperating.

2. If it does become necessary to perform service,be absolutely certain that:

a. Power to all motors is off and locked out andb. Main circuit breakers are off and/or fuses (if

used) are removed from the main powersource.

c. All electrical power cables have beendisconnected from all motors or

d. All drive belts or chains have been removedfrom all drive systems.

3. This unit may be equipped with a locking chainsafety device that is attached to the trolleywheel bolts on the FP1000 Feed Screw Lift /Puller. This device MUST BE USED to preventthe feed screw from being pulled off the liftingpin while removing and installing the feedscrew.

4. Do not install any walkways or serviceplatforms which would allow any persons toreach dangerous “nip” points while the machineis operating.

5. Remove foreign objects or product from thehopper with long-handled tools. Use longhandled brushes or mops if brushing or wipingis necessary.

6. If foreign objects (metal hooks, shovels, forks,knives, boxes, paper, etc.) accidentally fall intothe hopper, do not attempt retrieval while the

unit is in operation. Shut off and lock out thepower first.

7. Even though power is disconnected, make sureno one is working inside a “non-operative”grinder while removing or installing drive beltsor chains, or when servicing any part of thedrive system.

8. The feed screw may rotate for 15 seconds orlonger after power is shut off. Beforeperforming service, let the rotating parts cometo a complete halt, disconnect and lock out thepower with a padlock.

9. Keep hands and tools away from all productoutlet and inlet areas until machine hascompletely stopped and power is locked outwith a padlock.

10. Some parts requiring service are heavy. Weargloves and safety-toed shoes when servicing.Wear protective goggles to protect the eyeswhen cleaning.

11. All safety guards, including drive systemguards, must be put back in place beforeoperating. Replace safety stickers if theybecome loose, lost, fragmented, discolored orfaded.

12. When this machine is running, the decibelreading may exceed 85 db.

13. NO work is to be performed on this machinewithout the operators knowledge.

14. Do not use this machine for purposes otherthan the original intended use.


GENERAL SAFETY INFORMATIONDANGEROUS “NIP” AREAS. Getting hands caught in these areas will cause serious injuryand could pull you into the feed hopper.

DO NOT REACH BEYOND THE TOP OF THE HOPPER WHEN GRINDER ISOPERATING. READ ALL GENERAL SAFETY INFORMATION ON PAGE 3 OF THISMANUAL BEFORE OPERATING, SERVICING OR CLEANING THE GRINDER.

DO NOT PUT FINGERS INTOCUTTING PLATE HOLES. THECUTTING KNIFE IS LOCATEDDIRECTLY BEHIND THEORIFICE PLATE AND COULDCAUSE SERIOUS INJURY.

Fig. 1 Typical Model 6 Grinder.

DEFINITIONS OF HAZARD LEVELS USED ON SAFETY LABELS:

Immediate hazard which WILL result in severepersonal injury or death.

Hazards or unsafe practices which COULD result insevere personal injury or death.

Procedures or practices which WILL or COULDresult in damage to equipment and/or destructionto equipment or product.


SAFETY LABEL PLACEMENT

(Label 4) 018−0611 (Moving PartsCan Crush Label)

(Label 2) 018−1010 (Gearbox Tag)

NOTE: Approximate locations are shown. Do notplace labels closer than 3” to any corner edge or joint.

(Label 1) 018−1011 (Weiler Serial Number Tag)

�

�

�

�

(and opposite side)

(and opposite side)

�

��(and opposite side)

�(and opposite side)

NOTE: Right Hand Side Mountframe shown. For Left HandSide Mount frames, labelplacement should be inthe same generallocation.

(Label 3) 018−3505 (Read andUnderstand Manual...)

(Label 5) 018−0612 (RotatingParts Inside)

�

�

Required NumberLabel 1 1 each. . . . . . . . . . .Label 2 1 each. . . . . . . . . . .Label 3 3 each. . . . . . . . . . .Label 4 2 each. . . . . . . . . . .Label 5 2 each. . . . . . . . . . .

REAR VIEW FRONT VIEW

Fig. 2 Placement of Safety Labels.


INTRODUCTION

FEED HOPPER

MOTOR GUARD

HOPPER GUARD

FLUTED HEAD

ORIFICE PLATEGUARD

FRAME

GEARBOX

Fig. 3 Typical Model 6 Grinder on an Undermount Frame.

GENERAL DESCRIPTIONThe basic Weiler� grinder consists of a feed screwsupported inside a feed hopper/head assembly. Thefeed hopper/head assembly is supported on a singlereduction gearbox. The feed screw is driven by themain shaft of the gearbox and transports theproduct through a fluted head and through sizingholes in a plate.

GRINDER APPLICATIONSEach Weiler� grinder is designed to grind aspecific product or products. If the grinder will beused for work other than originally intended,contact the factory immediately for informationand recommendations.


INSTALLATION INSTRUCTIONSCORRESPONDENCEAll Weiler� equipment is identified by serialnumbers and model numbers.

SHIPPING INFORMATIONGrinders are usually shipped on skids orcompletely crated. Any accessories are eitherbanded to, or placed inside the unit.

UNPACKING / UNCRATINGA common set of S.A.E. wrenches and/or carpentertools may be required to remove skids or cratingmaterials.

Remove all wrapping material and parts that mightbe inside hopper or banded to the grinder.

LIFT EQUIPMENT & LIFTINGREQUIREMENTS

WARNINGUse a crane or forklift that is rated to liftand move your unit.

NOTE: The center of gravity may differ with eachgrinder, depending upon type of frame, motor orother grinder components. If necessary, a qualifiedmaterial handler/mover should be contacted toprovide information about lifting points.

WARNINGDo not lift the unit any higher thannecessary for movement across floorsurfaces. Move carefully and slowly.

PRE−INSTALLATION CHECKSEXTERIOR CHECK: Use the packing slipaccompanying your unit to verify that the shipmentis complete and correct. Check the following.

a. Model/Serial Number (On I.D. Taglocated on frame and feed hopper).

b. Spare Parts should be accounted for (SeeSpare Parts).

c. All exposed fasteners should be tight andaccounted for.

INTERIOR CHECK: Check the following:

a. Are motor and gearbox pulleys alignedand tight?

b. Remove guard cover and check drivebelt/chain alignment and tension.

c. Check oil level in gearboxes (Refer toLubrication Instructions in the GearboxService Instructions).

d. General condition of parts.

LOCATION (Fig. 4 )Check for ample space around the machine toperform service.

1. Front end to remove feed screw.2. Rear end and sides to remove guard

covers.3. Associated equipment matches unit output

and height (load and unload).Allow for work space around the grinder for safemovement, operation and certain maintenancefunctions.NOTE: Additional space may be required in frontof unit if a FP1000 Feed Screw Lift/Puller is usedto remove and install feed screw.

72”(1829mm)

*Low Frame

63−1/8”(1603mm)

or55−1/8”*

(1400mm)

48”(1219mm)

36”(914mm)

48”(1219mm)

50−5/8”(1286mm)

or42−5/8”*

(1083mm)

33−13/16”(859mm)

or25−13/16”*(656mm)

Fig. 4 Work Space Required.

ANCHORINGWARNING

Failure to secure unit to floor can causemovement, tipping or torque bending ofunit. This can be hazardous tooperators and/or equipment.

Use holes in foot pads to locate floor anchorpositions. All Weiler� equipment must be securelyanchored to the floor before wiring and operatingcan begin.


DRAINAGE SLOPE (Fig. 5 )Install the grinder so that the product outlet endslopes downward approximately 1. This willallow for water drainage during clean−up. It maybe necessary to place shims or spacers under footpads. Maintain slope but level from side to side.

1

SHIM

Fig. 5 Drainage Slope.

ELECTRICALWARNING

Turn off and lock out machine powersource(s) following the lockout / tagoutprocedures described in OSHA CFR 291910.147 Code of Federal Regulations(or equivalent).

Consult local electrical codes and review allapplicable Standards, prior to placing and installingwiring and controls. Employ a qualified registeredelectrician or contractor for final wiring. Standardsfound in CHAPTER XVII, SECTION 1910.309(OSHA) NATIONAL ELECTRICAL CODENFPA 70−1971; ANSI C1−1971 (Rev. ofC1−1986) (or equivalent) shall apply to allelectrical installations and utilization equipment.

WARNINGTo prevent hazardous situations foreach machine:1. Do NOT use dual controls (more

than one ON−OFF switch) for thesame motor.

2. Do NOT use dual circuits (morethan one power source to the samemotor).

3. Do NOT use the grinder startercontrols to supply power for anyother machines.

4. The operators control station shallnot be mounted in hard to reach,remote or hidden areas. It must bevisible and convenient for anyemergency that requires immediateshut−off of the machines.

5. If your unit is part of a systempowered by a central hydraulicpower station, the lock−out mustbe located in the grinder powercircuit.

DIRECTION OF ROTATION (Fig. 6 )During normal operation the feed screw shouldrotate counterclockwise (viewed from front ofunit).

WARNINGImmediately following rotation check,shut off main power and lock it out witha padlock.

FEED SCREW ROTATESCOUNTER−CLOCKWISE (viewed from front).

Fig. 6 Direction of Rotation During Normal Operation.


DISASSEMBLY INSTRUCTIONS

RING WRENCH /WORM INSERTION TOOL

PLATE LIFTER

KNIFE INSERTREMOVAL TOOL

Fig. 7 Special Tools.

WARNINGTurn off and lock out machine powersource(s) following the lockout / tagoutprocedures described in OSHA CFR 291910.147 Code of Federal Regulations(or equivalent).

REQUIRED TOOLS (Fig. 7 )

RING WRENCH / WORM INSERTIONTOOL: Fits over lugs of ring and is used to turnring off counterclockwise (CCW) and on clockwise(CW). Also used to assist in engaging the feedscrew onto the gearbox spline.

PLATE LIFTER: Lifts end of feed screw tocenter the plate in head opening. Used to removeand install plate/bushing assembly. Also used toremove tension spring from feed screw pin hole.

KNIFE INSERT REMOVAL TOOL: Use thistool to remove inserts when they become worndown. Refer to Page 29.

STEP 1: REMOVE ORIFICE PLATE GUARD(Fig. 8 )Loosen thumb screws and remove orifice plateguard. Set aside for cleaning later.

ORIFICE PLATE GUARD

Fig. 8 Remove Orifice Plate Guard.

STEP 2: REMOVE RING (Fig. 9 )

RING

RING WRENCH TURN RINGCOUNTER−CLOCKWISE

TO LOOSEN

Fig. 9 Ring Removal.

STEP 3: REMOVE PLATE (Fig. 10 )Remove plate and bushing (if applicable) byputting plate lifter “point” on first thread at end ofhead. Place loop around centering pin. Lift up anddown while pulling back on plate.


PLATE LIFTERPOINT

PLATE

LOOP

Fig. 10 Plate and Removal.

STEP 4: REMOVE KNIFEHOLDER (Fig. 11 )

KNIFEHOLDER

Fig. 11 Knifeholder Removal.

STEP 5: REMOVE CENTERING PIN(Fig. 12 )

CENTERING PIN

Fig. 12 Centering Pin Removal.

STEP 6: REMOVE SPRING (Fig. 13 )

SPRING

Fig. 13 Spring Removal.

STEP 7: REMOVE FEED SCREWWARNING

Use caution when handling. FeedScrews can weigh 100 lbs. (45 KG) ormore.

STEP 8: FEED SCREW SUPPORT CART(Fig. 14 ) After feed screw is removed from grinder, place iton a stable support for cleaning. Remove excluderseal from drive end.

EXCLUDER SEALFEED

SCREW

SUPPORTCART

Fig. 14 Typical Feed Screw Support Cart.


CLEANING INSTRUCTIONSWARNING


1. SAFETY DURING CLEANING:Safety and product data sheets of thecleaning and disinfection agents* must beobserved. (*Adhere to chemicalmanufacturers instructions at all times).

Wear suitable gloves, safety shoes andeye protection to prevent injury from sharpparts, falling objects and flying debriswhich may be caused by water spray.

Be extremely careful when handling steamand hot, high velocity water hoses toprevent burns or other injury to body andeyes.

Do not directly flush any operating stationsand/or electrical panels with steam and/orhigh−pressure cleaning solutions. Thiswill cause excessive condensation insidethe enclosures which could cause failure.Water could also be forced past enclosuredoor seals which could cause failure.

Do not direct live steam and/or highpressure water directly towards the inputor output splines of any reducers. Watermay be forced past the seals and into thereducer cavity which could eventuallycause failure.

Do not stand on adjacent equipment,boxes, ladders, tables, etc. Always useproper platforms during cleaning.

USE CARE IN HANDLING CLEANED,OILED PARTS AS THEY WILL BESLIPPERY.

2. EDUCATION AND INSTRUCTION OFCLEANING STAFF:Always make sure that the machine iscleaned by a qualified and well−instructedstaff which has read and understood thischapter.

3. FREQUENCY:The machine is to be cleaned dailyaccording to demand and to existingrequirements of the authorities.

4. PROCEDURE:a. Thoroughly pre−flush the overall unit

with steam and/or high−pressurewater of at least 122−140F(50−60C).

b. Disassemble the unit according to theDisassembly Instructions found onPage 9. Any tools required todisassemble for cleaning should becleaned themselves prior to their use.

c. Utilize a mild detergent* to clean allstationary parts on the machine. Apply a foam cleaning solution* with abrush to the entire machine. Ifnecessary, use a long−handled brushon the areas inside the hopper. Donot enter the hopper. Allow thesolution to work approximately 20minutes.(*Adhere to chemical manufacturersinstructions at all times).

d. Flush with clean water.

e. Carefully inspect whether themachine is clean − especially oncritical places such as edges, etc.

f. Sanitize the machine with adisinfecting solution*. Allow thissolution to work approximately 30−60minutes.(*Adhere to chemical manufacturersinstructions at all times).

g. Re−flush the machine carefully withclean water before taking themachine into operation.

5. DRY PARTS:Dry all parts thoroughly after cleaning.Spare parts should be well oiled withU.S.D.A. approved (or equivalent) andkept in a clean, dry place.

6. SAFETY LABELS:Check all safety labels for legibility aftereach clean−up procedure. Replace asnecessary.


REMOVE CLIPS FROM HOPPER ROD END.RAISE HOPPER GUARD AND THOROUGHLYCLEAN INSIDE AND OUTSIDE OF UNIT AS

DESCRIBED ABOVE. FRAME SIDE PANELSSHOULD BE REMOVED PERIODICALLY

(WEEKLY) FOR CLEANING AS NECESSARY

REMOVE PLATEGUARD AND

CUTTING PARTSAS DESCRIBED IN

DISASSEMBLYINSTRUCTIONS.THOROUGHLY

CLEAN INSIDE ANDOUTSIDE OF UNIT.

*Adhere to chemical manufacturers instructions at all times.

Fig. 15 Typical Model 6 Grinder.


ASSEMBLY INSTRUCTIONSWARNING


STEP 1: INSTALL FEED SCREW/WARNING

Use caution when handling. FeedScrews can weigh 100 lbs. (45 KG) ormore.

STEP 2: CHECK FEED SCREW HEADSPACE (Fig. 16 )The relationship of the feed screw to the head iscritical to proper grinding. The feed screw must beinstalled without excluder seal, then, ameasurement taken between the face of the feedscrew and the end of the head. This dimensionMUST BE 5/8” (15.8mm).

5/8”

FEED−SCREWFACE

END OFHEAD

HEAD PRESSUREFLIGHT

ÉÉÉÉÉÉÉÉÉÉÉÉ

ÉÉÉÉÉÉÉÉÉÉ

ÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇ (15.8mm)

Fig. 16 Check Feed Screw Head Space.

STEP 3: ADJUST FEED SCREW HEADSPACE (Fig. 17 )Make certain that the thrust screw (or cap screw onthe back of the feed screw (or on the gearboxmainshaft) is securely tightened and is in goodcondition. Adding a washer will decrease the feedscrew head space. Removing a washer willincrease that dimension.

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

GEARBOXMAIN SHAFT

SPLINE

SPACERWASHER

THRUSTSCREW

EXCLUDER SEAL

Fig. 17 Adjust Feed Screw Head Space.

STEP 4: INSTALL EXCLUDER SEAL ANDINSTALL FEED SCREW (Fig. 18 )Install excluder seal on drive end of feed screw.The “lip” of the seal must face toward the splineend. Lubricate seal and drive spline of feed screwwith U.S.D.A. approved (or equivalent) grease.Install feed screw (See STEP 1).


EXCLUDER SEAL LIP

FEED SCREW DRIVESPLINE END

EXCLUDERSEAL

Fig. 18 Install Excluder Seal and Install Feed Screw.

STEP 5: INSTALL KNIFE TENSION SPRING(Fig. 19 )Insert spring into feed screw hole with beveled endfirst.

SPRING

BEVELED ENDGOES IN FIRST

Fig. 19 Install Knife Tension Spring.

STEP 6: INSTALL CENTERING PIN(Fig. 20 )Lubricate pin with a small amount of U.S.D.A.approved (or equivalent) grease or mineral oil andinsert over spring.NOTE: Pin shoulder should project 3/16” fromfeed screw recess.

CENTERING PIN

Fig. 20 Install Centering Pin.

STEP 7: INSTALL KNIFEHOLDER (Fig. 21 )Install knifeholder. If two blade knifeholder isused, line up the blades with pressure flights.Failure to install two blade knifeholders asdescribed may result in damage. Three and fourblade knifeholders can be installed only one way.

KNIFEHOLDER

Fig. 21 Install Knifeholder.


STEP 8: INSTALL PLATE AND (OPTIONALBCA ONLY) BUSHING (Fig. 22 )Lubricate cutting side of plate with U.S.D.A.approved (or equivalent) grease. Use plate liftertool as shown, and install plate into grinder head.FOR BCA ONLY: Lubricate inside bore ofbushing with U.S.D.A. approved (or equivalent)grease. Install bushing into plate and then installboth into grinder head using plate lifter tool.

PLATE LIFTERPOINT

PLATE

LOOP

Fig. 22 Install Plate and (Optional) Bushing.

STEP 9: (Optional) INSTALLATION OFTEARDROP HOLE PLATES (Fig. 23 )Install plates with irregular shaped holes as shownbelow. This way the knife will move the producttoward the center of the plate.CAUTION: TIGHTEN PLATE RETAININGRING “HAND TIGHT ONLY”. DO NOT USERING WRENCH TO TIGHTEN AS DAMAGETO PLATE MAY RESULT.

CORRECT INCORRECT

Fig. 23 Installation of Teardrop Hole Plates.

STEP 10: INSTALL GRINDER RING(Fig. 24 )CAUTION: All threads must be cleaned andlubricated with U.S.D.A. (or equivalent) approvedgrease or mineral oil before installing ring ontogrinder head. Dirty threads will cause incorrectplate/knifeholder spring tension and will result inpoor cutting action.Place ring onto head. Hold pressure against thering as you turn CLOCKWISE. If threading doesnot occur, reverse direction, still holding pressureuntil the ring “jumps” a thread. Then thread onclockwise, all the way.Using the ring wrench or ratchet lever, turn the ringon as far as it will go without forcing then unscrewcounterclockwise 1/8 turn. This will shift theplate notch up against the supporting side of theplate lug in the head, which will prevent prematurewear of the plate lug.NOTE: The only exception to this tighteningmethod is when using a teardrop or round holeplate with holes larger than 1” (25mm) diameter.Then snug the ring onto the head HAND TIGHTONLY.DO NOT FORCE THE RING ON. IF BINDINGOCCURS, REMOVE THE RING AND CHECKTHREADS AND LUGS.DO NOT OVER−TIGHTEN THE RING BYUSING A BAR OR HAMMER ON THEWRENCH OR RING LUGS.DO NOT USE A BAR BETWEEN BRIDGESUPPORTS OF RING, IN LIEU OF RINGWRENCH.


TURN RING CLOCKWISETO TIGHTEN

RING WRENCH

Fig. 24 Install Grinder Ring.

STEP 11: INSTALL ORIFICE PLATEGUARD (Fig. 25 )Install orifice plate guard onto grinder by slidingboth shafts into clamps. Tighten thumb screws tosecure plate guard in place.

ORIFICE PLATE GUARD

Fig. 25 Install Orifice Plate Guard.


OPERATING INSTRUCTIONSWARNING

Do not operate this unit until you haveread and understand all of the generalsafety information on page 3, and theoperating and maintenanceinstructions.If your unit is part of a system poweredby a central hydraulic power station, thelock−out must be located in the grinderpower circuit.Do not leave the grinder unattendedwhile it is running.Do not permit unauthorized personsnear the grinder.

HOPPER COVER SAFETY INTERLOCKSWITCH (OPTIONAL) (Fig. 26 )Your unit may be equipped with a hopper coverwith a safety interlock switch. If so, the covermust be closed to complete the electric circuitbefore any operation can begin. Refer to GeneralSafety Information on Page 3.

HOPPER COVER

SAFETYINTERLOCK

SWITCH

Fig. 26 Hopper Cover Safety Switch.

HOPPER GUARD (Fig. 27 )If your unit is not equipped with a hopper cover,then it may have a hopper guard with rods. Toremove the hopper guard (during cleaning ormaintenance) you must remove the hair pin clipsfrom the ends of the rod and slide the rod out.Tilt the hopper guard up to allow access to theinside of the hopper for cleanup.

HOPPER GUARD

HOPPER GUARDROD

HAIR PIN CLIP

HOPPER GUARD

Fig. 27 Hopper Guard with Rods.

PRE−OPERATION CHECKSBefore start−up, check the following:

1. All safety guards are in place.2. No foreign objects, such as tools are lying

inside the hopper.

RECOMMENDED FEEDING METHODS.Use the grinder for its’ intended purpose.Feed the grinder at a controlled rate. AVOIDOVER−FEEDING and/or dumping large amountsof product into the feed hopper at one time.Over−feeding may cause lodging or “bridging” inthe hopper and will slow or stop the output.


CONVEYOR FEEDING (Fig. 28 )Conveyor feeding is recommended except in someprocesses.

SCREWCONVEYOR

Fig. 28 Feeding with a Conveyor.

COLUMN DUMPER FEEDING (Fig. 29 )The use of a column dumper is also recommendedas an alternate feeding method.

COLUMNDUMPER

Fig. 29 Feeding with a Conveyor.

MANUAL FEEDING (Fig. 30 )WARNING

Manual feeding (hand−feeding) canpose potentially dangerous situations.Keep hands out of the feed hopper at alltimes. Do NOT poke around in the feedhopper with forks or rakes while thegrinder is in operation.STOP THE GRINDER and LOCK OUTMAIN POWER WITH A PADLOCKBEFORE ATTEMPTING TO CLEAR THEHOPPER.

If manual feeding is necessary for purposes ofinspection or other reasons, the product should begathered on a feed table. Use a fork or rake to feedthe product into the hopper at a steady rate andfrom a safe distance. Make sure all appropriatesafety measures are taken. Refer to General SafetyInformation on page 3.

KEEP FEED SCREW COVERED (Fig. 30 )Keep the feed screw slightly covered with productat all times to maintain efficient grinding.

KEEP PRODUCT LEVELSLIGHTLY ABOVE

FEED SCREW

Fig. 30 Keep Feed Screw Covered With Product.


KEEP HANDS AND FINGERS AWAY(Fig. 31 )

WARNINGDO NOT UNDER ANY CIRCUMSTANCESPUT FINGERS INTO CUTTING PLATEHOLES. THE CUTTING KNIFE ISLOCATED DIRECTLY BEHIND THEORIFICE PLATE AND COULD CAUSESERIOUS INJURY.

KEEPHANDS

ANDFINGERS

AWAY

Fig. 31 Keep Hands and Fingers Away.

EMERGENCY STOPPING (Fig. 32 )Do not try to dislodge or remove anything from thegrinder hopper while the unit is in operation. Shutoff and lock out power with a padlock. Refer toGeneral Safety Information on page 3.

a. A dangerous situation exists or isimminent.

b. Something other than product enters thehopper.

c. Output slows down or product stopscoming from the grinder.

d. Associated take−away equipment has amalfunction.

e. Drive belts begin to squeal or when othermaintenance must be performed to resolvea problem.

LOCK OUTWITH A

PADLOCK

Fig. 32 Shut Off and Lock Out Power with a Padlock.

WARNINGIn all cases, after stopping the grinder,shut off and lock out main power with apadlock before trying to resolve theproblem.

NORMAL SHUT−DOWNa. For Thawed & Tempered Meats and Other

Soft Products. The grinder can be stoppedat any time providing a re−start withproduct in the feed hopper will not tax themotor beyond the manufacturers’specifications.

b. For Hard−Frozen Meats, Bones, Hides andOther “Tough” Products. Except for anemergency, stop the grinder only after allof the product has been ground out of thegrinder, or when discharge ceases. If thegrinder is stopped under load, a re−startmay be difficult, or entirely impossible.

WARNINGFrequent starts in quick successionmay damage the drive or the motor, andwill subject the grinder to unnecessarywear and tear.


INSPECTION & MAINTENANCEWARNING


MAINTENANCE SCHEDULINGEstablishing and adhering to a good maintenanceschedule is very important. The interval betweencertain maintenance functions will be determinedby amount of use. This suggested maintenanceschedule is based on a normal 8 hour shift.

INSPECTION/MAINTENANCE SCHEDULEDAILY or EACH SHIFT:

LUBRICATION: Refer to LUBRICATION INSTRUCTIONS.

CHECK: Condition of all parts.CHECK: For missing safety labels.

Parts normally removed for cleaning after eachshift:

Plate retaining ringOrifice platePlate bushingKnifeholderCentering pinKnife tension springFeed screwExcluder seal

WEEKLY or EVERY 40 HOURS:

CHECK: And tighten head bolts.INSPECT: Head and ring threads.

EVERY 3 MONTHS or 1000 HOURS:

CHECK: Drive belt tension, pulleysand alignment.

INSPECT: Drive spline on gearboxshaft and feed screw.

INSPECT: Condition of head flutesand outside diameter.

INSPECT: Motors for excessive dirt,friction or vibration.

INSPECT: General condition ofexterior surfaces.

DRIVE BELT PULLEY ALIGNMENTUse a straight edge to check alignment. Re−alignif necessary. Re−tighten all nuts and bolts afteralignment is complete.

TILTEDPULLEYS

CORRECTDeflection

STRAIGHTEDGE

OFFSETPULLEYS

INCORRECT

90�

90�

INCORRECT

Fig. 33 Drive Belt Alignment.

BELT TENSIONCheck belt tension and adjust after first 40 hours ofoperation. A one inch (25mm) deflection per beltwith a force of 6 lbs. is acceptable. If belts slip,they are either too loose, wet, dirty or worn out.


Refer to Belt Tension Checking Procedure andDeflection Force Table (Fig. 34 ).

DEFLECTION= BELT SPAN64

BELT SPAN

PROCEDURE1. Measure the belt span.2. Divide belt span by 64 to get belt deflection

needed to check tension.3. Set large “O” ring on span scale at required

belt deflection. This scale is in 1/16” incre-ments.

4. Set small “O” ring at zero on the “ForceScale” (plunger).

5. Place the larger end of the tension checkersquarely on one belt at the center of the beltspan. Apply force on the plunger until thebottom of the large “O” ring is even with thetop of the next belt or with the bottom of astraight edge laid across the sheaves.

6. Read the force scale under the small “O”ring to determine the force required to givethe needed deflection.

7. Compare the force scale reading with thecorrect value for the belt style and crosssection used as given in table below(Fig. 35 ). The force should be between theminimum and maximum values shown.

8. If there is too little deflection force, the beltsshould be tightened. If there is too muchdeflection force, the belts should be loos-ened.

ForceScaleSmall

“O” Ring

Large“O” Ring

SpanScale

Fig. 34 Belt Tension Checking Procedure.

BeltCross

Section

SmallP.D.

Range

DEFLECTION FORCE − LBS.

SuperGripbelts

GripnotchBelts

Steel CableGripbelts

Min. Max. Min. Max. Min. Max.

A

3.0−3.6 3 4.25 3.875 5.5 3.25 4

3.8−4.8 3.5 5 4.5 6.25 3.75 4.75

5.0−7.0 4 5.5 5 6.875 4.25 5.25

B

3.4−4.2 4 5.5 5.75 8 4.5 5.5

4.4−5.6 5.125 7.125 6.5 9.125 5.75 7.25

5.8−8.6 6.375 8.75 7.375 10.125 7 8.75

C7.0−9.4 11.25 14.375 13.75 17.875 11.25 14

9.6−16.0 14.125 18.5 15.25 20.25 14.25 17.75

D12.0−16.0 23.625 30.25 23.75 30.5

18.0−27.0 29.75 39.5 30.125 39.75

Fig. 35 Deflection Force Table

UNDERMOUNT FRAMES (Fig. 36 )Loosen lock nut on top of adjustment rod. Turnbottom nut up to force motor rails down and

tighten belts. Tighten top nut to lock adjustmentrod in place.

LOCKNUT

BOTTOMNUT

MOTOR RAIL

ADJUSTMENTROD

Fig. 36 Belt Tension (Undermount Frame).

MOTOR(See motor manufacturers’ instructions).

Periodically inspect motor for excessive dirt,friction or vibration. Be sure drain holes are keptopen.

Overheating of a bearing can be traced to one ofthe following:

1. Bent shaft.2. Excessive belt tension.3. Excessive end or side thrust from

gearing coupling.4. Poor alignment.

Loose motor mountings can cause vibration andbelt slippage.


LUBRICATION INSTRUCTIONSWARNING

Turn off and lock out machine powersource(s) following the lockout / tagoutprocedures described in OSHA CFR 291910.147 Code of Federal Regulations(or equivalent).DO NOT USE ANY NON−U.S.D.A.APPROVED TYPES OF LUBRICANTS.USE ONLY LUBRICANTS ANDLUBRICATING EQUIPMENT APPROVEDBY U.S.D.A. (OR EQUIVALENT) FORUSE IN MEAT AND OTHER FOODPLANTS.

GEARBOX OUTER SEAL (Fig. 37 )Lubricate gearbox outer seal daily through greasefitting on gearbox with U.S.D.A. (or equivalent)approved grease. Refer to lubrication chart.

LUBRICATE GEARBOX OUTER SEALDAILY WITH U.S.D.A. APPROVED (OREQUIVALENT) GREASE. (REFER TO

LUBRICATION CHART).

Fig. 37 Gearbox Outer Seal Lubrication.


LUBRICATION CHARTWARNING

Turn off and lock out machine power source(s) following the lockout / tagoutprocedures described in OSHA CFR 29 1910.147 Code of Federal Regulations (orequivalent).

PART, AREA OR TYPEOF LUBRICATION

TYPE OFLUBRICANT

SUGGESTED INTERVAL ANDOTHER INSTRUCTIONS

1. Excluder Seal. Grease(Brush)

Prior to assembly. Lubricate the wearlip and side that faces the back wall ofthe feed hopper with U.S.D.A. approved(or equivalent) grease or mineral oil.

2. Feed Screw Drive Spline. Grease(Brush)

Prior to assembly. Lubricate the entirearea liberally with U.S.D.A. approved (orequivalent) grease or mineral oil.

3. Centering Pin. Grease(Brush)

Prior to assembly. Lubricate the entirepin liberally with U.S.D.A. approved (orequivalent) grease or mineral oil.

4. Plate Bushings. (All Types). Grease(Brush)

Prior to assembly. Lubricate liberallywith U.S.D.A. approved (or equivalent)grease or mineral oil.

5. Plate Cutting Surface. Grease(Brush)

Prior to assembly. Lubricate cuttingsurface liberally with U.S.D.A. approved(or equivalent) grease or mineral oil.

6. Threads on Head, Ring and/orPlate.

Grease(Brush)

Prior to assembly. Lubricate liberallywith U.S.D.A. approved (or equivalent)grease or mineral oil.

7. Gearbox Outer Seal. Grease(Grease Gun)

Daily (at least every 24 hours ifcontinuous operation). Apply while thegrinder is running. Apply approximately1 ounce (28 gr). CAUTION:Over−lubricating is indicated whenexcess amounts of grease accumulatein the main shaft cavity.Over−lubricating may force excessgrease into the gearbox which couldnecessitate more frequent gearbox oilchanges.

AFTER CLEANING FOR OVERNIGHTSTORAGE:All Parts Removed From Grinder.

Grease(Brush of Sprayer)

Clean all parts. Dry them as thoroughlyas possible. Spread a thin film ofU.S.D.A. approved (or equivalent)mineral oil over all surfaces. Smallparts (plates, knives, springs, pins andbushings) may be immersed in U.S.D.A.approved (or equivalent) mineral oil forextended periods of storage, or store ina dry area.


SUGGESTED INTERVAL ANDOTHER INSTRUCTIONS

TYPE OFLUBRICANT

PART, AREA OR TYPEOF LUBRICATION

Other Exposed Surfaces. Grease(Brush of Sprayer)

Clean all parts. Dry them as thoroughlyas possible. Spread a thin film ofU.S.D.A. approved (or equivalent)mineral oil over all surfaces.

SUGGESTED WEEKLY LUBRICATIONOR INSPECTIONS: 8. Check Gearbox Oil Level.

Refer toAppropriateGearboxInstructions.

Remove the upper oil level plug. If nooil drains from port, add oil.

9. Check Gearbox Oil Condition.


Remove the oil drain plug and collect asmall sample of oil. (Do thisimmediately after operating the grinderwhen oil is warmed). If oil is not clean,and contains contaminants such as grit,fats or water, change the oil perGearbox Service Instructions.

10. Check Breather Vent.


Vent passage must be clean and open.Clean if necessary. CAUTION: Aplugged vent may cause oil to leak pastgearbox shaft seals.

OTHER LUBRICATION ANDINSPECTIONS: 11. Change Gearbox Oil.


Oil should be changed at least every 3months, or every 1,000 hours ofoperation or if contaminants are foundin the oil.

12. Motor.

Refer toAppropriate MotorManufacturersInstructions.

When motor is constantly subject todirty, wet and corrosive conditions, it isadvisable to lubricate at least every 6months.

SPECIAL: FOR NEW GRINDERS ORNEW GEARBOXES:

After the first 40 hours of operation,drain original oil. Flush with flushing oiland re−fill per Gearbox ServiceInstructions.


TROUBLESHOOTING GUIDEWARNING

Turn off and lock out machine power source(s) following the lockout / tagoutprocedures described in OSHA CFR 29 1910.147 Code of Federal Regulations (orequivalent).

LOW OUTPUT

PROBABLE CAUSES POSSIBLE REMEDIES

1. Loose ring or improperly assembled. 1. Tighten Ring. If ring wobbles duringgrinding, check threads on ring and head.

2. Dull plate and/or thickness worn down toomuch.

2. Sharpen Plate, reverse to sharp side orreplace. Surface must be flat and holeedges sharp. Thickness should be no lessthan 3/4” thick.

3. Knife inserts worn too far down, or dull.

3. Change Inserts if they are worn to a heightof 1/8” or less above the knifeholder blade.Check flatness of knifeholder blades if insertwear is uneven.

4. Worn head. Flutes are curled over or worndown. Anti−spin lugs are rounded off. 4. Replace or rebuild head.

5. Spring missing, over−compressed or broken. 5. Check for damage and proper height.Replace if necessary.

6. Pin and/or bushing wear. This will allow feedscrew to move up and dow, affecting knifewear and damaging pressure flights whichwill rub on head.

6. Check pin for wear. Any excessive groovesor ridges mean pin is worn. Check bushingat same time. If the pin is bad, then thebushing is probably bad too. Both should bereplaced. Bushings wear twice as fast aspins.

7. Feed screw pressure flights are worn acrossthe front face (dished appearance) and endsare worn down.

7. Replace feed screw. Send worn feed screwout for rebuild/evaluation by WEILER� andCompany, Inc.

7. a. Head flights are worn and have reducedO.D. or are worn thin and curled over,preventing product from moving throughhead.

7. a. Replace feed screw. Send worn feed screwout for rebuild/evaluation by WEILER� andCompany, Inc.

7. b. Hopper flights are rounded off and/or curledover, having no “bite” into product.

7. b. Replace feed screw or sharpen flights. Anyreduction in O.D. will affect grinding rate.1/4” to 1/2” reduction in O.D. requires rebuildor replacement.

7. c. Extreme pin hole wear will cause feed screwto move up and down, which will cause knifecontact to be interrupted resulting in unevenknife wear. Key shear, head damage andpin breakage are also possible.

7. c. Replace feed screw and/or have pin holdrebuilt.


POSSIBLE REMEDIESPROBABLE CAUSES

7. d. Feed screw / head spacing is incorrect.

7. d. With feed screw in grinder, but withoutexcluder seal on, measure the distance fromthe face of the feed screw to the end of thehead, while pushing in with hand. It shouldbe 5/8” (15.8mm). Make adjustment byadding or removing spacer washers at driveend.

8. Mis−application. Grinder is not being usedfor which it was designed. 8. Consult Weiler� and Company, Inc.

9. An accumulation of bone chips or gristle oninside of plate surface will impede productflow and destroy definition.

9. Disassemble grinder and clean out allmaterial behind plate. Check cutting partsfor sharpness. Assemble parts correctly andtighten ring. A bone/gristle collector may berequired.

10. Loose belts on drive system, sometimesrecognized by squealing.

10. Check belts after first 40 hours of running,on new unit. Check belts for proper tensionand condition, at least every 6 months.Belts should be tight enough to resistslipping under maximum load.

SMEARED PRODUCT


1. All or any of the previous mentioned causescan cause product smear.

1. Re−read solutions to LOW OUTPUT. Ifrequired, change pin and bushing. Sharpenplate and correctly assemble the grinder.

RAGGED, DISCOLORED APPEARANCE


1. All or any of the previous mentioned causescan create this problem. Poor cutting actionproduces ragged appearance. Dis−coloredproduct is due to a worn pin/bushing.

1. Re−read solutions to LOW OUTPUT. Ifrequired, change pin and bushing. Sharpenplate and correctly assemble the grinder.

POOR PARTICLE DEFINITION


1. Wrong feed screw configuration, RPM, holesize in plate, plate blockage and all LOWOUTPUT causes.

1. Re−read solutions to LOW OUTPUT. Switchfrom a two−blade to a four−bladeknifeholder, RPM increase, different feedscrew or plate hole size. Consult Weiler�and Company, Inc.


TEMPERATURE RISE


1. Plate holes too small, RPM too fast, productover−worked or mixed. Any of the previouscauses could apply. Normally, LOWOUTPUT is associated.

1. Re−read solutions to LOW OUTPUT.Temperature rise can sometimes be reducedby slowing RPM, a bigger hole plate orcorrect feed screw.

NO OUTPUT


1. Grinder malfunction due to:a. Loose Ring.b. Missing or broken spring.c. Improper feed screw/head space.d. Plate plugged.e. Circuit breaker “tripped”.f. Drive belts slipping.

1. Grinder malfunction remedies:a. Tighten Ring.b. Replace spring.c. Check and adjust spacing.d. Disassemble and clean behind plate.e. Reset breaker. Check amp draw and

size of breakers. Check electricalwiring.

f. Tighten belts.

ERRATIC OUTPUT


1. Dis−similar products cause erratic output. 1. Check grinder application with WEILER�

and Company, Inc.

2. “Fatting Out” can cause momentaryblockage, which frees itself after a certainamount of build−up. It is usually caused byover−mixing or over−working the product.

2. Check length of product pre−mix time and/ormethod of mix. Consult WEILER� andCompany, Inc.

PREMATURE WEAR

IMPORTANT: FAILURE to replace the feed screw centering pin and/or plate bushing willallow the feed screw to wear prematurely. Excessive wear will also affect cutting actionof the knife and plate.


REPAIR / REBUILD OF PARTSWARNING

Turn off and lock out machine powersource(s) following the lockout / tagoutprocedures described in OSHA CFR 291910.147 Code of Federal Regulations(or equivalent).All parts should be returned to Weiler�and Company, Inc. for evaluation andrebuild if necessary.

PLATE RETAINING RING (Fig. 38 )Check condition of threads and support faces forflatness. Check entire area for surface rust. Returnring to WEILER� and Company, Inc. forevaluation and rebuild.

CHECK CONDITION OFTHREADS. CHECK

SUPPORT FACE FORFLATNESS.

NEWSlight Flat on Top

WORNSharp Point

BADLY WORNCurved Threads

RETURN TO WEILER�AND COMPANY FOR

REBUILD.

CHECK ENTIRE AREAFOR SURFACE RUST.

Fig. 38 Plate Retaining Ring.

ORIFICE PLATES (Fig. 39 , 40 , 41 )Use a WEILER� PG5000 Surface Grinder with aliquid coolant to re−sharpen dull plates.

If a plate is used until its surface becomesextremely grooved, discolored and worn, a largeamount of material will have to be removed toestablish a flat, sharp plate surface. It is a goodpractice to establish a plate re−sharpening programbased on when a plate shows signs of dulling.

It is better to re−sharpen often with a little materialremoval. Reverse or re−sharpen the plate before itbegins to affect production or degradation.

A plate becomes too thin to use when the bushingis flush or protrudes through the plate center.

HOLES HAVE SHARP EDGES

NO VISIBLE SURFACE RUST

Fig. 39 Orifice Plate.

THICK, THIN REDUCEDTHICKNESSREGULAR, TEARDROP

MODEL NEW DISCARD NEW DISCARD

6 1” (25mm) 3/4”(19mm)

7/8”(23mm)

3/4”(19mm)

Fig. 40 Orifice Plate Chart.


“NICKS” AT HOLE EDGES

RUSTY APPEARANCE ORVISIBLE DISCOLORATION

Fig. 41 Orifice Plate Damage.

KNIFE INSERT REMOVAL (Fig. 42 )Insert point of Insert Remover Tool into slot atlocating pin end of insert. Gently pry upward andlift worn insert out of slot. Repeat for all inserts.Discard worn inserts.

KNIFEHOLDER

INSERT REMOVER TOOLINSERT

Fig. 42 Knife Insert Removal.

KNIFE INSERT INSTALLATION (Fig. 43 )Line up the new insert over locating pin and pushgently down into insert slot. Tap new inserts inplace using a soft hammer. Replace inserts whenthey have worn down 1/8” (3mm) or more.

KNIFEHOLDER

INSERT

SOFTHAMMER

Fig. 43 Knife Insert Installation.

CENTERING PIN AND BUSHING (Fig. 44 )Pins and bushings are not re−buildable and shouldbe replaced as often as is necessary. If totalclearance between pin and bushing bore is 1/32”(.79mm) or more, replace both.

WEAR AREA

BUSHING(BCA ONLY)CENTERING PIN

WEAR AREAFig. 44 Centering Pin & Bushing.

KNIFE TENSION SPRING (Fig. 45 )Knife tension springs may occasionally weaken,break or get lost. Keep a good supply on hand.

1−3/8”(35mm)

Fig. 45 Knife Tension Spring.


FG

HEAD BOLTSBOLT CIRCLE (BC)

HOLE DIA. (HD)QUANTITY (QTY)

A C

THREADSPER INCH

(TPI) DEGREEANGLE (DA)

B

D E I J

H45�

NOTE: DIMENSIONSSHOWN ARE NOMINAL

FACTORY “NEW”

GRINDERMODEL

AB C D E F DA G H J BC HD QTY TPI

NEW MIN

6 19/32”(15mm)

15/32”(12mm)

1/4”(6.3mm)

3/8”(9.5mm)

6.771(172mm)

6”(152.4mm)

5/8”(15.8mm) 45 1−3/8”

(35mm)12”

(304.8mm)5.044”

(128.1mm)8”

(203.2mm)33/64”

(13mm) 6 8

Fig. 46 Model 6 Grinder Head Wear Dimensions.

WARNINGWELDING CAN CAUSE WARPAGEWHICH MAY REQUIRE RE−MACHININGTO RE−ESTABLISH CORRECTTOLERANCES.ALL HEADS SHOULD BE RETURNED TOWEILER� AND COMPANY, INC. FORREBUILD.

BASIC HEAD REPAIR/REBUILD (Fig. 46 )Heads should be replaced or repaired as soon asdamage occurs, or wear requires it.

All heads should be returned to WEILER� andCompany, Inc. for rebuild.

The dimensions given are for informationalreference to gage wear.

MINOR THREAD DAMAGE can be re−shapedwith a three−cornered file. If the threads are badlyworn, it may be necessary to have the headreplaced or rebuilt. A consistently loose ring willmis−shape the threads causing grinding problemsand fitting problems of ring/head.

PLATE RETAINING LUG can become battered orbroken. It can be replaced by welding but too

much heat may cause some shrinkage or distortion.

ANTI−SPIN FLUTES in front of the head fluteseventually become rounded and product spinsbehind plate. Factory rebuild is required.

HEAD FLUTES have sharp edges that wear awayover a period of time. Straight flutes can bereplaced, while spiral flutes cannot.

When replacing the head, replace the head gasket.

Tighten the head bolts in a “cross−pattern”. Afterseveral hours of operation with a new gasket or ona new grinder, the bolts should be re−checked.Torque head bolts as follows:

BOLT DIAMETERIN INCHES

FOOTPOUNDS

NEWTONMETERS

1/2” (13mm) 28 389/16” (15mm) 43 585/8” (16mm) 55 753/4” (19mm) 97 1327/8” (22mm) 155 210

Feed Screw / head space adjustment should bechecked after feed screw or head change.


SQUARE FLIGHTSCROSS−SECTION

FRONT“FACE” OFPRESSURE

FLIGHTS

CUPPED FLIGHTSCROSS−SECTION

HIGH CARBONSTEEL AREA

DRIVESPLINE

1/8” (3mm) MAX. ALLOWABLE WEAR

4−31/32”(126mm)

FEED SCREWI.D. NUMBER

FEED SCREWCAVITY

FACE

SQUARE EDGES

10� − 15�

5−3/8”(136.5mm)

REQUIRES REBUILD:When 4−31/32” (126mm) is reduced by 1/8” (3mm) to 1/4” (6mm)When 5−3/8”(136.5mm) is reduced by 1/4” (3mm) to 1/2” (13mm)

When FACE is “DISHED” 1/8” (3mm) or more.

NOTE: CUPPED FLIGHTS MAY BE GROUNDTO A SLIGHTLY SMALLER DIAMETER,

PROVIDING CUPPED EDGE IS PROPERLYSHAPED AND SHARP.

NOTE: DIMENSIONSSHOWN ARE NOMINAL

FACTORY “NEW”

Fig. 47 Model 6 Grinder Feed Screw Wear Dimensions.

WARNINGFEED SCREWS HAVE HOLLOWSHAFTS. DO NOT USE A TORCH TOCUT INTO THE SHAFT OR APPLYEXCESSIVE HEAT TO THE SHAFTWHEN WELDING. EXCESSIVE HEATWILL PRESSURIZE THE CAVITY ANDCAUSE A VIOLENT RELEASE OF AIRWHEN BREAKING THROUGH THESHAFT WALL.

IMPROPER WELDING CAN ALSOCAUSE WARPAGE WHICH MAYREQUIRE RE−MACHINING TORE−ESTABLISH CORRECTTOLERANCES.

FEED SCREW REPAIR (Fig. 47 )Damaged feed screws should be repaired as soon aspossible after damage occurs. If feed screws aredamaged, they should be returned to WEILER�and Company, Inc. for inspection and rebuild tocorrect specifications. Local repairs should belimited to “emergencies” only. Consult Weiler�and Company, Inc. All feed screws haveidentifying numbers stamped on the shaft. Use

these numbers in all correspondence to the factory.RE−SHARPENING of cupped flighting can bedone with a standard portable hand grinder.

CHECKING FOR FLATNESS (Fig. 48 )Use a straightedge across the face of the feed screwto check for “dished” pressure flights. If wornback more than 1/8 inch (3mm), the flights shouldbe rebuilt.

PRESSURE FLIGHTS

STRAIGHT EDGE

Fig. 48 Checking for Flatness Across Pressure Flights.

Warranty

Provisur� Technologies, (“Seller”) warrants to the original purchaser equipment and parts manufactured entirely byit and supplied hereunder against defects in materials and workmanship for period of one (1) year from date of shipment.If within such period any such equipment or parts shall be proved to Seller’s satisfaction to be defective, such equipmentor parts shall, at Seller’s option, be repaired or replaced (but not installed) F.O.B./Ex Works selling point. Seller’s war-ranty obligations shall be limited to such repair or replacement, shall be purchaser’s exclusive remedy hereunder andshall be conditioned upon Seller’s receiving written notice of any alleged defect within ten (10) days after its discoveryand, at Seller’s option, return of such products to Seller, F.O.B. its factory. This warranty shall not apply to equipment orparts not manufactured entirely by Seller or to equipment or parts which shall have been subject to negligence, accident,damage by circumstances beyond Seller’s control or improper operation, maintenance or storage or to other than normaluse or service, or which shall not have been installed or operated in accordance with Seller’s instructions. For parts to bereplaced, Seller may request the old parts to be returned to Seller for inspection, carrying charges prepaid. For defects inparts or equipment not manufactured entirely by Provisur� Technologies, such as electrical equipment, ball bearings andother components, Seller will assign the standard warranty of the manufacturer of such parts and equipment. Seller doesnot warrant durability of common wear items, such as grinder orifice plates, knives, centering pins, bushings, seals orbelts, or against normally expected wear under the conditions of purchaser’s application and use.

No warranty or representation is made that the equipment or parts comply with the provisions of the OccupationalSafety and Health Act of 1970, as amended, or any regulations issued thereunder, or any other foreign, state or other lawsor regulations. Any implied warranty to such effect is expressly disclaimed. Compliance with such laws and regulationsis the sole responsibility of the purchaser or user.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IM-PLIED WARRANTIES WHATSOEVER, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MER-CHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE. This exclusive remedy shall not be deemed to havefailed its essential purpose so long as the Seller is willing and able to replace defective products or issue a credit to pur-chaser within a reasonable time after purchaser proves to Seller that a defect is involved.

EXCLUSION OF CONSEQUENTIAL DAMAGES AND DISCLAIMER OF LIABILITY

Seller’s liability with respect to breaches of warranty shall be limited as provided in above paragraphs. With respectto other breaches of this contract, Seller’s liability shall in no event exceed the contract price. SELLER SHALL NOT BESUBJECT TO AND DISCLAIMS: (1) ANY OTHER OBLIGATIONS OR LIABILITIES ARISING OUT OF BREACHOF CONTRACT OR OF WARRANTY, (2) ANY OBLIGATIONS WHATSOEVER ARISING FROM TORT CLAIMS(INCLUDING NEGLIGENCE AND STRICT LIABILITY) OR ARISING UNDER OTHER THEORIES OF LAWWITH RESPECT TO PRODUCTS SOLD OR SERVICES RENDERED BY SELLER, OR ANY UNDERTAKINGS,ACTS OR OMISSIONS RELATING THERETO, AND (3) ALL CONSEQUENTIAL, INCIDENTAL AND CON-TINGENT DAMAGES WHATSOEVER. Without limiting the generality of the foregoing, Seller specifically disclaimsany liability for penalties (including administrative penalties), special or punitive damages, damages for lost profits orrevenues, loss of use of products or any associated equipment, cost of capital, facilities or services, downtime, shutdownor slowdown costs, spoilage of material, or for any other types of economic loss. The parties expressly agree that thisexclusion of consequential, incidental and contingent damages and disclaimer of liability applies irrespective of whetherthe warranty described in the above paragraphs is found to have failed of its essential purpose.

Model 6 Grinder - M & M Equip

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