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LMFC250 FINE CRUSHER MANUAL

 

Screw Slots 

 

Pointer not midway of the 
Screw Slot 

 

Reversible Pointer Plate 

 

Fig 5. Reversing the pointer plate. 

 

Step 6 

 

Using the supplied 46 mm spanner on the hex machined on the end of the shaft, turn the shaft back until the pointer is lined 
up with the desired particle size, in mm, on the indicator plate. Use a portable shim (steel plate of appropriate thickness) as a 
feeler gauge between the bottom edges of the jaw plates to confirm the setting of the jaw plates. The minimum jaw gap for this 
machine is 2 mm. 

 

Step 7 

 

Remove the shim gauge from the Jaw Plates. With the supplied 46 mm spanner still on the hex on the shaft, turn in the clamp 
block bolt and feel the serrations on the shaft and the clamp block meshing together as the bolt is tightened. If necessary, rock 
the shaft slightly with the spanner to ensure the serrations mesh correctly. Nip the bolt up, not too tight and nip up the locknut. 

 

Step 8 

 

Turn the flywheel by hand to check that everything is correct and the jaw plates do not touch and that the gap has remained 
correct. Reinstall the covers and reconnect the power to crush a sample of material to determine the correct settings for the 
desired particle size. 

 

Note: 

Different types of material may crush to variable particle sizes for the same setting. Therefore, fine tuning of the jaw gap 

may be necessary for different materials. 

 

5

 

5

 

5

 

28

 

Summary of Contents for LMFC250

Page 1: ...LMFC250 FINE CRUSHER USER MANUAL LAARMANN Group B V Op het Schoor 6 6041 AV Roermond Netherlands info laarmann eu www laarmann eu webshop laarmann eu 31 6 23 40 00 33...

Page 2: ...1 4 5 Definitions and Abbreviations 11 1 4 6 Special Characters 11 1 4 7 Outline of Manual 11 2 SPECIFICATIONS 2 1 General Identification 12 2 1 1 Name Plate Location 12 2 2 Characteristics of the Mac...

Page 3: ...and Drains 18 4 1 2 Decibel Rating 18 4 1 3 PPE Required 18 4 2 Site Services Required 18 4 2 1 Power 18 4 2 2 Pneumatics 18 4 2 3 Hydraulics 18 4 2 4 Water 18 4 2 5 Footings or Bench Table Frame Plat...

Page 4: ...6 5 Warm Up 23 5 6 6 Checks During Operation 23 5 6 7 Stop Procedure 23 5 6 8 Special Conditions of Use 23 5 6 9 Preservation and Storage 23 6 MAINTENANCE 6 1 Safety during Maintenance Operations 23 6...

Page 5: ...36 8 2 3 Testing Standards 36 8 2 4 Adjustments for Test or Inspection 36 8 3 Troubleshooting Procedures 36 8 4 Bolt Torque Settings 37 9 PARTS 9 1 General Content 38 9 2 Major Assemblies 38 9 2 1 Lis...

Page 6: ...al Equipment Type Jaw Crusher Model LMFC 250 Model Item Code Voltage Item Code Voltage LMFC 250 105200 380 415 V 50 Hz 105203 380 V 60 Hz 105201 440 V 60 Hz 105204 600 V 60 Hz 105202 220 V 60 Hz Other...

Page 7: ...y that LAARMAN might incur from such warranty in the case of the goods is limited to any one or more of the following The replacement of the goods or the supply of equivalent goods The repair of the g...

Page 8: ...nd The Netherlands The Netherlands Ph 31 6 23 40 00 33 info laarmann eu www laarmann eu LMFC250 FINE CRUSHER MANUAL 1 2 3 Contact Information 1 3 About this Manual 1 3 1 Duty of Care 1 3 2 Safety Info...

Page 9: ...ry Pinch point Fork lift hazard Switch off power before working on equipment As per Client Owner isolation procedures Sharp edges watch your fingers Switch off pneumatics before working on equipment A...

Page 10: ...air leaks abnormal or unusual noise vibration Touch Limited Keep away from any moving parts vibration hot surfaces etc Smell Check for leaks burning Measure Temperature Using hand held Infrared or La...

Page 11: ...ISPM 15 The International Standards for Phytosanitary Measures Publication No 15 Guidelines for Regulating Wood Packaging Material in International Trade Brackets All sizes and pressures are metric u...

Page 12: ...pitman shaft powered by V belts from a standard electric motor The sample material is fed into the large top opening of the jaw plates via a vibratory feeder and is crushed by the oscillating jaw plat...

Page 13: ...sections that follow contain lists of parts recommended to Commission Operate and Maintain the LMFC 250 Crusher 2 4 Spare Parts Schedules 2 4 1 Recommended Commissioning Spares Not applicable no comm...

Page 14: ...machine if required 3 2 1 Storage If the machine needs to be stored for any reason it should be indoors or undercover away from the effects of the weather 3 2 2 Transportation The packing crate has a...

Page 15: ...pen slat type or solid sided For dispatch from the factory the machine is strapped and bolted to the base of the crate black poly wrapping is used to protect the machine and the body of the crate is t...

Page 16: ...e LMFC 250 Crusher Care should be taken not to break the crate in case it may be required for re use Ensure a visual inspection upon delivery and take note of any damage that may have taken place Remo...

Page 17: ...r loss restart Setting and controlling all safety set points and limitation Do not lift the machine by any point other than the lifting eyes or slots provided unless specifically stated otherwise Only...

Page 18: ...s document 4 2 2 Pneumatics Not applicable 4 2 3 Hydraulics Not applicable 4 2 4 Water Not applicable 4 2 5 Footings or Bench Table Frame Platform detail It is recommended the LMFC 250 Crusher be secu...

Page 19: ...Section 3 Checklist of Supplied Parts have been received 4 3 Installation of Equipment 4 4 1 Pre Operation Prior to starting the Crusher perform the following checks Perform a visual check on the mac...

Page 20: ...250 Crusher Follow these instructions to carefully operate and to test the Crusher 5 Operation Minimum PPE The following safety rules should be adhered to at all times to ensure the safety of the oper...

Page 21: ...lected in a tray beneath the jaw plates Massa of the machine is around 100kg Motor mounted is standard 7 5 kW 5 3 Machine Data 5 2 4 Principles of Operation When it s installed in an installation star...

Page 22: ...ust be running before adding sample material Failure to adhere to this requirement will cause damage to the machine and void the warranty Add more material as required When all the material has been c...

Page 23: ...AFETY NOTE WARNING The machine can start without warning Isolate power before accessing any electrical or moving components Minimum PPE 6 1 Safety during Maintenance Operations Before carrying out any...

Page 24: ...trouble free use of the LMFC 250 Crusher 6 3 Wear Limit and Alignment Tolerances The jaw plates and side liners used in the LMFC 250 Crusher are subject to very abrasive action through normal use The...

Page 25: ...rusher will not start Loss of power to machine Restore power to machine 6 4 Corrective Maintenance Troubleshooting Guide The Troubleshooting Guide following outlines possible causes to any problems wh...

Page 26: ...the supplied 46 mm spanner undo the locknut of the clamp block bolt and then undo the bolt at least four 4 full turns to enable Locknut Clamp Block Bolt Jaw Gap Adjustment Shaft Fig 2 Releasing the b...

Page 27: ...3 pointer plate screws and turn the pointer to the Closed mark on the indicator plate Re tighten the three screws Pointer plate Closed mark 3 Pointer Screws Indicator plate Fig 4 Jaw cap indicator pla...

Page 28: ...the supplied 46 mm spanner still on the hex on the shaft turn in the clamp block bolt and feel the serrations on the shaft and the clamp block meshing together as the bolt is tightened If necessary ro...

Page 29: ...ximum opening Step 3 Remove the side liner plates by simply levering them free and lifting them out from their position in the frame Step 4 loosen but do not remove the four 4 long M12 draw bolts in t...

Page 30: ...talling new plates Step 8 The jaw plates can be rotated only once before being replaced by new ones Relocate the rotated or new jaw plates into position on the T clamps and draw them up with the draw...

Page 31: ...ts nuts and washers securing the motor mounting plate to the frame back plate and lever up the motor and motor mounting plate to enable the new belts to be fitted on the pulleys Step 4 To tension the...

Page 32: ...ply and the machine Step 2 To replace a faulty motor loosen the four 4 belt tensioning bolts nuts and washers and lever the motor upwards to slacken the V belts so they can be removed Step 3 Disconnec...

Page 33: ...6 6 Other Maintenance Procedures Please contact LAARMANN for any additional technical documentation covering detailed overhaul procedures 6 7 Operator s Tool kit Listed below are a number of tools th...

Page 34: ...clean rag prior to lubrication Avoid over lubricating the Crusher Refer to 7 4 Lubrication Schedule below Always wipe off any excess grease 7 1 Lubrication Safety and other precautions 7 3 Lubricatio...

Page 35: ...ine Lubrication Maintenance Schedule Example only Correct lubrication of equipment is very important to maximize life expectancy and performance The following Table illustra tes an example of a routin...

Page 36: ...spection on parts that are likely to wear such as the jaw plates and side liners V belts and any breakdown of bearings Check that there is no excessive dust build up around the Crusher Check that all...

Page 37: ...4 Nm 63 Nm 77 Nm M12 29 Nm 77 Nm 109 Nm 135 Nm M14 46 4 Nm 122 Nm 174 Nm 215 Nm M16 71 3 Nm 180 Nm 270 Nm 330 Nm M18 269 Nm 370 Nm M20 139 4 Nm 372 Nm 528 Nm 650 Nm M22 519 Nm 722 Nm M24 241 Nm 640 Nm...

Page 38: ...e Major Assemblies of the LMFC 250 Jaw Crusher LMFC 250 Jaw Crusher Hopper not supplied Motor Jaw Gap Adjustment Base Frame Not supplied Main Frame not supplied Control Box In central control box The...

Page 39: ...40 LAARMANN 1 9 Spacer button 012 002 188 LAARMANN 2 10 Wedge block for side liner plate 012 002 144 LAARMANN 1 11 Top cover plate 012 002 174 LAARMANN 1 12 LAARMANN label plate 012 002 175 LAARMANN 1...

Page 40: ...RMANN 1 25 Fly wheel cover 012 002 060 LAARMANN 1 The Parts List quantities and location of parts which may be required for use on the LMFC 250 Drive Side and Flywheel Covers 9 3 2 Parts of the Drive...

Page 41: ...01 LAARMANN 1 35 Fixing plate of clamp block 012 002 201 LAARMANN 1 36 Clamp block 012 002 202 LAARMANN 1 37 Retaining pins of clamp block 2 38 Clamping bolt 1 39 Lock nut 1 40 LMFC250 draw bolt 2 41...

Page 42: ...N 1 49 Fly wheel 012 002 152 LAARMANN 1 50 Main shaft fixed bearing cap 012 002 150 LAARMANN 2 52 Bearing 2 53 Seal 2 54 Seal 2 55 Ringfeder 2 56 Grease nipple 2 57 Tab washer 2 58 Lock nut 2 The Part...

Page 43: ...2 61 LMFC250 pitman shaft bearing housing cap 012 002 132 LAARMANN 2 62 Bearing 2 63 Seal 4 The Parts List and Figure below illustrate the details quantities and location of parts which may be requir...

Page 44: ...plate 012 002 130 LAARMANN 2 66 Pointer plate 012 002 131 LAARMANN 1 The Parts List and Figure below illustrate the details quantities and location of parts which may be required for use on the LMFC 2...

Page 45: ...AARMANN 2 71 Spacer for crank arm 012 002 156 LAARMANN 2 72 Crank arm 012 002 161 LAARMANN 1 74 Bearing 1 75 Seal 2 76 Oil seal 2 77 Circlip 2 78 Grease nipple 3 79 Bearing 2 80 Spring pin 2 The Parts...

Page 46: ...ve an Item Number showing in this Manual Parts List please contact LAARMANN Contact details for LAARMANN can be found in Section 1 of this document 9 3 8 Parts of the Motor Assembly 86 fig 19 Parts of...

Page 47: ...N 50082 1 1992 Immunity EN 60204 1 Part 1 Safety of Machinery Electrical Equipment of Machines WARNING This equipment is required to be operated strictly in accordance with the instructions given in t...

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