KOMATSU PC200EN, PC200EL-6K SHOP MANUAL UEBM000301 – PDF DOWNLOAD
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KOMATSU PC200EN, PC200EL-6K SHOP MANUAL UEBM000301 – PDF DOWNLOAD
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KOMATSU PC200EN, PC200EL-6K SHOP MANUAL UEBM000301 – PDF DOWNLOAD
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KOMATSU PC200EN, PC200EL-6K SHOP MANUAL UEBM000301 – PDF DOWNLOAD
Language : English
Pages : 510
Downloadable : Yes
File Type : PDF
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TABLE OF CONTENTS:
KOMATSU PC200EN, PC200EL-6K SHOP MANUAL UEBM000301 – PDF DOWNLOAD
GENERAL ...................................................................................................................................................................................................................... 22 STRUCTURE AND FUNCTION ....................................................................................................................................................................................................... 34 ENGINE RELATED PARTS ..................................................................................................................................................................................................... 35 RADIATOR OIL COOLER .................................................................................................................................................................................................... 36 POWER TRAIN .............................................................................................................................................................................................................. 37 FINAL DRIVE .............................................................................................................................................................................................................. 38 SWING CIRCLE ............................................................................................................................................................................................................. 39 SWING HOLDING BRAKE .................................................................................................................................................................................................. 41 SWING MACHINERY TRACK FRAME, RECOIL SPRING ............................................................................................................................................................................... 42 TRACK SHOE ............................................................................................................................................................................................................... 43 HYDRAULIC CIRCUIT DIAGRAM ................................................................................................................................................................................................ 46 HYDRAULIC TANK ........................................................................................................................................................................................................... 47 HYDRAULIC TANK ........................................................................................................................................................................................................... 48 OPERATION ............................................................................................................................................................................................................ 51 FUNCTION ............................................................................................................................................................................................................. 56 HYDRAULIC PUMP CONTROL VALVE ............................................................................................................................................................................................. 57 SAFETY- SUCTION VALVE FOR SERVICE VALVE .................................................................................................................................................................................. 62 CLSS ..................................................................................................................................................................................................................... 63 OPERATION OF CLSS SYSTEM AS A WHOLE ...................................................................................................................................................................................... 90 BOOM RAISE ............................................................................................................................................................................................................... 92 SWING OPERATED INDEPENDENTLY ............................................................................................................................................................................................. 94 COMPOUND OPERATION ....................................................................................................................................................................................................... 96 BOOM OUT, STANDARD MODE RELIEF (CUTT- OFF CONTROL) ....................................................................................................................................................................... 98 SWING MOTOR ..............................................................................................................................................................................................................100 CENTER SWIVEL JOINT ......................................................................................................................................................................................................102 TRAVEL MOTOR .............................................................................................................................................................................................................103 OPERATION OF MOTOR ...................................................................................................................................................................................................105 OPERATION OF PARKING BRAKE ...........................................................................................................................................................................................107 OPERATION OF PARKING BRAKE ...........................................................................................................................................................................................108 OPERATION OF BRAKE VALVE .............................................................................................................................................................................................109 VALVE CONTROL WORK EQUIPMENT - SWING PPC VALVE ...........................................................................................................................................................................112 OPERATION ............................................................................................................................................................................................................118 TRAVEL PPC VALVE SERVICE PPC VALVE .......................................................................................................................................................................................120 SAFETY LOCK VALVE ........................................................................................................................................................................................................123 PPC ACCUMULATOR ..........................................................................................................................................................................................................123 PPC SHUTTLE TRAVEL JUNCTION VALVE ......................................................................................................................................................................................124 PPC SHUTTLE VALVE ........................................................................................................................................................................................................125 FUNCTION .............................................................................................................................................................................................................125 TRAVEL JUNCTION VALVE ....................................................................................................................................................................................................128 STRAIGHT- TRAVEL SYSTEM ..................................................................................................................................................................................................129 EPC SOLENOID VALVE .....................................................................................................................................................................................................131 LS SELECT, 2- STAGE RELIEF, TRAVEL SPEED, SWING BRAKE SOLENOID VALVE LS CONTROL EPC VALVE ............................................................................................................................133 HYDRAULIC CYLINDER .......................................................................................................................................................................................................136 SPECIFICATIONS .......................................................................................................................................................................................................136 BOOM CYLINDER ............................................................................................................................................................................................................136 ARM CYLINDER .............................................................................................................................................................................................................137 BUCKET CYLINDER ..........................................................................................................................................................................................................137 OVERLOAD WARNING DEVICE ..................................................................................................................................................................................................139 HOSE BURST PROTECTION VALVE (BOOM) .......................................................................................................................................................................................143 OPERATION BOOM RAISE .................................................................................................................................................................................................145 BOOM LOWER ...........................................................................................................................................................................................................145 WORK EQUIPMENT ENGINE CONTROL SYSTEM .....................................................................................................................................................................................150 1. OPERATING OF SYSTEM ...............................................................................................................................................................................................151 2. COMPONENTS OF SYSTEM ..............................................................................................................................................................................................152 ELECTRONIC CONTROL SYSTEM ................................................................................................................................................................................................156 TOTAL SYSTEM DIAGRAM .....................................................................................................................................................................................................157 MACHINE MONITOR SYSTEM ...................................................................................................................................................................................................180 CHANGING DEFAULT WORKING MODE ............................................................................................................................................................................................187 TESTING AND ADJUSTING ........................................................................................................................................................................................................192 TABLE OF JUDGEMENT STANDARD VALUE ........................................................................................................................................................................................193 FOR ENGINE (HO Mode) ...............................................................................................................................................................................................193 STANDARD VALUE TABLE FOR ELECTRICAL PARTS ................................................................................................................................................................................203 MEASURING ENGINE SPEED ...................................................................................................................................................................................................212 MEASURING EXHAUST GAS COLOR ..............................................................................................................................................................................................213 ADJUSTING VALVE CLEARANCE ................................................................................................................................................................................................214 MEASURING COMPRESSION PRESSURE ...........................................................................................................................................................................................215 MEASURING BLOW- BY PRES-SURE .............................................................................................................................................................................................215 TESTING AND ADJUSTING FUEL INJECTION TIMING ..............................................................................................................................................................................216 MEASURE ENGINE OIL PRESSURE ..............................................................................................................................................................................................217 TESTING AND ADJUSTING FAN BELT TENSION ...................................................................................................................................................................................218 MEASURING SPEED SENSOR ...................................................................................................................................................................................................219 CHECKING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR .......................................................................................................................................................220 TESTING AND ADJUSTING GOV-ERNOR MOTOR LEVER STROKE .......................................................................................................................................................................221 TESTING CLEARANCE OF SWING CIRCLE BEARING ................................................................................................................................................................................223 TESTING AND ADJUSTING TRACK SHOE TENSION .................................................................................................................................................................................224 TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT ........................................................................................................................................225 TESTING AND ADJUSTING TVC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) ............................................................................................................................................228 TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE ................................................................................................................230 CONTROL PUMP CIRCUIT OIL PRESSURE ........................................................................................................................................................................................233 TESTING EPC VALVE SOLENOID VALVE OUTPUT PRESSURE .........................................................................................................................................................................235 MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE ........................................................................................................................................................237 ADJUSTING WORK EQUIPMENT, SWING PPC VALVE ................................................................................................................................................................................239 TESTING TRAVEL DEVIATION .................................................................................................................................................................................................240 TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT ..............................................................................................................................................................241 MEASURING OIL LEAKAGE ....................................................................................................................................................................................................243 RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT ........................................................................................................................................................................245 BLEEDING AIR .............................................................................................................................................................................................................246 TROUBLESHOOTING ..............................................................................................................................................................................................................248 POINTS TO REMEMBER WHEN TROUBLESHOOTING ..................................................................................................................................................................................249 SEQUENCE OF EVENTS IN TROUBLESHOOTING ....................................................................................................................................................................................250 PRECAUTIONS WHEN CARRYING OUT MAINTENANCE ................................................................................................................................................................................251 1. PRECAUTIONS WHEN HANDLING ELECTRIC EQUIPMENT ......................................................................................................................................................................251 2. POINTS TO REMEMBER WHEN HANDLING HYDRAULIC EQUIPMENT ..............................................................................................................................................................256 CHECKS BEFORE TROUBLESHOOTING ............................................................................................................................................................................................258 CONNECTOR TYPES AND MOUNTING LOCATIONS ...................................................................................................................................................................................259 CONNECTOR TYPES AND MOUNTING LOCATIONS ...................................................................................................................................................................................261 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS ...............................................................................................................................................................................266 EXPLANATION OF CONTROL MACHANISM FOR ELECTRICAL SYSTEM ...................................................................................................................................................................279 DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL ....................................................................................................................................................................280 METHOD OF USING JUDGEMENT TABLE ..........................................................................................................................................................................................288 METHOD OF USING TROUBLESHOOTING CHARTS ...................................................................................................................................................................................290 DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE .................................................................................................................................................................292 SERVICE CODE TABLE .......................................................................................................................................................................................................297 POINTS TO REMEMBER WHEN CARRYING OUT TROUBLE-SHOOTING OF GOVER- NOR, PUMP CONTROLLER SYSTEM ..............................................................................................................................302 ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ...............................................................................................................................................303 JUDGEMENT TABLE FOR GOVERNOR, PUMP GOVERNOR (GOVERNOR CONTROL SYSTEM) AND ENGINE RELATED PARTS ...........................................................................................................................307 ELECTRICAL CIRCUIT DIAGRAM FOR E MODE 1/ 2 ...............................................................................................................................................................................309 ELECTRICAL CIRCUIT DIAGRAM FOR E MODE 2/ 2 E- 1 Abnormality in governor, pump controller power source (controller LED is OFF) ............................................................................................311 E- 2 [E308] Abnormality in fuel control dial input value is displayed ....................................................................................................................................................312 E- 3 [E317] Abnormality (disconnection) in motor drive system is displayed ...............................................................................................................................................313 E- 4 [E318] Abnormality (short circuit) in motor drive system is displayed ...............................................................................................................................................314 E- 5 [E306] Abnormality in feedback potentiometer system is displayed ....................................................................................................................................................315 E- 6 [E315] Abnormality (short circuit) in battery relay output system is displayed ......................................................................................................................................316 E- 7 [E316] Abnormality (step- out) in motor is displayed ................................................................................................................................................................317 E- 8 Engine does not start ...............................................................................................................................................................................................319 E- 9 Engine speed is irregular .......................................................................................................................................................................................321 E- 10 Lack of output (engine high idling speed is too low) ...........................................................................................................................................................325 E- 11 Engine does not stop ...........................................................................................................................................................................................327 E- 12 Defective operation of battery relay system (engine does not stop) .............................................................................................................................................329 TROUBLESHOOTING OF ENGINE SYSTEM (S MODE) ....................................................................................................................................................................................332 METHOD OF USING TROUBLESHOOTING CHARTS ...................................................................................................................................................................................333 S- 1 Starting performance is poor (starting always takes time) ...........................................................................................................................................................337 S- 2 Engine does not start ...............................................................................................................................................................................................338 S- 3 Engine does not pick up smoothly (follow- up is poor) ...............................................................................................................................................................341 S- 4 Engine stops during operations ......................................................................................................................................................................................342 S- 5 Engine does not rotate smoothly (hunting) ...........................................................................................................................................................................343 S- 6 Engine lacks output (no power) ......................................................................................................................................................................................344 S- 7 Exhaust smoke is black (incomplete combustion) ......................................................................................................................................................................345 S- 8 Oil consumption is excessive (or exhaust smoke is blue) .............................................................................................................................................................346 S- 9 Oil becomes contaminated quickly ....................................................................................................................................................................................347 S- 10 Fuel consumption is excessive ......................................................................................................................................................................................348 S- 11 Oil is in cooling water, or water spurts back, or water level goes down ............................................................................................................................................349 S- 12 Oil pressure caution lamp lights up (drop in oil pressure) .........................................................................................................................................................350 S- 13 Oil level rises (water, fuel in oil) ...............................................................................................................................................................................351 S- 14 Water temperature becomes too high (overheating) ...................................................................................................................................................................352 S- 15 Abnormal noise is made .............................................................................................................................................................................................353 S- 16 Vibration is excessive .............................................................................................................................................................................................354 TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER (PUMP CONTROL SYSTEM) (C MODE) ..................................................................................................................................................355 POINTS TO REMEMBER WHEN TROUBLESHOOTING PUMP CONTROLLER SYSTEM ...........................................................................................................................................................356 ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ...............................................................................................................................................357 JUDGEMENT TABLE FOR GOVERNOR, PUMP CONTROLLER (PUMP CONTROL SYSTEM) AND HYDRAULIC RELATED PARTS ..........................................................................................................................363 ELECTRICAL CIRCUIT DIAGRAM FOR C MODE 1/ 2 ...............................................................................................................................................................................366 ELECTRICAL CIRCUIT DIAGRAM FOR C MODE 2/ 2 ...............................................................................................................................................................................367 C- 1 Abnormality in controller power source system (controller LED is OFF) ...............................................................................................................................................368 C- 2 [E232] Short circuit in pump TVC solenoid system is displayed .......................................................................................................................................................369 C- 3 [E233] Disconnection in pump TVC solenoid system is displayed .......................................................................................................................................................371 C- 6 [E201] Short circuit in LS bypass solenoid system is displayed ......................................................................................................................................................373 C- 7 [E211] Disconnection in LS bypass solenoid system is displayed ......................................................................................................................................................374 C- 8 [E203] Short circuit in swing brake solenoid system is displayed ....................................................................................................................................................375 C- 9 [E213] Disconnection in swing brake solenoid system is displayed ....................................................................................................................................................377 C- 10 [E205] Short circuit in 2- stage relief solenoid system is displayed ...............................................................................................................................................379 C- 11 [E215] Disconnection in 2- stage relief solenoid system is displayed ...............................................................................................................................................380 C- 12 [E206] Short circuit in travel speed solenoid system is displayed ..................................................................................................................................................381 C- 15 [E222] Short circuit in LS- EPC solenoid system is displayed .......................................................................................................................................................383 C- 19 [E226] Abnormality in pressure sensor power source system is displayed .............................................................................................................................................384 C- 20 [E227] Abnormality in engine speed sensor system is displayed ......................................................................................................................................................385 TROUBLESHOOTING OF GOVERNOR, PUMP CONTROLLER (INPUT SIGNAL SYSTEM) (F MODE) ..............................................................................................................................................386 F- 1 BIT PATTERN 20- (1) Swing oil pressure switch does not light up .....................................................................................................................................................387 F- 2 Bit pattern 20-( 2) Travel oil pressure switch does not light up ....................................................................................................................................................388 F- 3 Bit pattern 20-( 3) Boom LOWER oil pressure switch does not light up ................................................................................................................................................389 F- 4 Bit pattern 20-( 4) Boom RAISE oil pressure switch does not light up ................................................................................................................................................390 F- 5 Bit pattern 20-( 5) Arm IN oil pressure switch does not light up ....................................................................................................................................................391 F- 6 Bit pattern 20-( 6) Arm OUT oil pressure switch does not light up ...................................................................................................................................................392 F- 7 Bit pattern 21-( 1) Bucket CURL oil pressure switch does not light up ...............................................................................................................................................393 F- 8 Bit pattern 21-( 2) Bucket DUMP oil pressure switch does not light up ...............................................................................................................................................394 F- 9 Bit pattern 21-( 3) Swing lock switch does not light up .............................................................................................................................................................395 F- 10 Bit pattern 22-( 5) Kerosene mode connection does not light up .....................................................................................................................................................396 F- 11 Bit pattern 22-( 6) L. H. knob switch does not light up ............................................................................................................................................................397 TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE) .....................................................................................................................................................................398 TABLE OF FAILURE MODES AND CAUSES (1/ 2) TABLE OF FAILURE MODES AND CAUSES (2/ 2) ........................................................................................................................................401 H- 1 Speeds of all work equipment, swing, travel are slow or lack power ..................................................................................................................................................403 H- 2 There is excessive drop in engine speed, or engine stalls ...........................................................................................................................................................405 H- 3 No work equipment, travel, swing move ...............................................................................................................................................................................406 H- 4 Abnormal noise generated (around pump) ..............................................................................................................................................................................406 H- 5 Auto- deceleration does not work (when PPC shuttle valve is cause) ..................................................................................................................................................407 H- 6 Fine control ability is poor or response is poor ....................................................................................................................................................................407 H- 7 Boom is slow or lacks power .........................................................................................................................................................................................409 H- 8 Arm is slow or lacks power ..........................................................................................................................................................................................411 H- 9 Bucket is slow or lacks power .......................................................................................................................................................................................413 H- 10 Work equipment (boom, arm, bucket) does not move (but travel and swing are normal) .................................................................................................................................414 H- 11 Excessive hydraulic drift (boom, arm, bucket) ......................................................................................................................................................................414 H- 12 Excessive time lag (engine at low idling) ..........................................................................................................................................................................415 H- 13 Other equipment moves when single circuit is relieved ..............................................................................................................................................................415 H- 14 In F/ O modes, work equipment speed is faster than specified speed .................................................................................................................................................416 H- 15 Lack of power when pressure rises H- 16 In compound operations, work equipment with larger load is slow ............................................................................................................416 H- 17 In swing + boom RAISE, boom RAISE is slow ..........................................................................................................................................................................417 H- 19 In work equipment boom RAISE + travel, travel speed drops excessively ..............................................................................................................................................417 H- 18 In swing + travel, travel speed drops excessively ..................................................................................................................................................................417 H- 20 Travel deviation ...................................................................................................................................................................................................418 H- 21 Travel speed is slow ...............................................................................................................................................................................................419 H- 22 Steering does not turn easily or lacks power .......................................................................................................................................................................421 H- 23 Travel speed does not switch or is faster than specified speed .....................................................................................................................................................423 H- 24 Travel does not move (one side only) ...............................................................................................................................................................................423 H- 25 Does not swing .....................................................................................................................................................................................................424 H- 26 Swing acceleration is poor or swing speed is slow ..................................................................................................................................................................425 H- 27 Excessive overrun when stopping swing ..............................................................................................................................................................................427 H- 28 Excessive shock when stopping swing (one direction only) H- 29 Excessive abnormal noise when stopping swing H- 30 Excessive hydraulic drift of swing ...............................................................429 H- 31 Swing speed is faster than specified swing speed ...................................................................................................................................................................430 TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE) ...........................................................................................................................................................................432 ACTION TAKEN BY MONITOR PANEL WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE ............................................................................................................................................433 ELECTRICAL CIRCUIT DIAGRAM FOR M MODE 1/ 2 ...............................................................................................................................................................................436 ELECTRICAL CIRCUIT DIAGRAM FOR M MODE 2/ 2 ...............................................................................................................................................................................437 M- 1 [E101] Abnormality in error data is displayed [E102] Error in clock data is displayed ...............................................................................................................................438 M- 2 [E103] Short circuit in buzzer output or contact of 24 V wiring harness with buzzer drive harness is displayed ......................................................................................................439 M- 3 [E104] Air clogging detected is displayed ...........................................................................................................................................................................440 M- 4 [E106] Drop in engine oil pressure detected is displayd .............................................................................................................................................................440 M- 5 [E108] Engine water temperature 105° C detected is displayed ........................................................................................................................................................441 M- 6 When starting switch is turned ON, none of the lamps on the monitor panel light up for 3 seconds ....................................................................................................................442 M- 7 When starting switch is turned ON, monitor panel lamps all stay lighted up and do not go out M- 8 When starting switch is turned ON, items lighted up on monitor panel are different from actual machine (model) ....444 M- 9 When starting switch is turned ON (engine stopped), basic check items flashes .......................................................................................................................................445 M- 10 Preheating is not being used but (preheating monitor) lights up ....................................................................................................................................................447 M- 11 When starting switch is turned ON and engine is started, basic check items flash ...................................................................................................................................448 M- 12 When starting switch is turned ON (engine stopped), caution items, emergency items flash (battery, engine oil pressure lamps do not light up) ......................................................................450 M- 13 When starting switch is turned ON and engine is started, caution items, emergency items flash (when there is no abnormality in engine or items to check before troubleshooting) ....................................452 M- 14 When starting switch is turned ON (engine stopped), buzzer does not sound for 1 second Caution item flashes but buzzer does not sound ..............................................................................455 M- 15 No abnormality is displayed on monitor but buzzer sounds ...........................................................................................................................................................455 M- 16 Night lighting on monitor panel does not light up (liquid crystal display is normal) ...............................................................................................................................456 M- 18 Coolant temperature gauge does not give any display (none of gauge lamps light up during operation) ................................................................................................................457 M- 17 Coolant temperature gauge does not rise ............................................................................................................................................................................457 M- 19 Fuel level gauge always displays FULL ..............................................................................................................................................................................458 M- 20 Fuel level gauge does not give display .............................................................................................................................................................................458 M- 21 Swing lock switch is turned ON (LOCK) but (swing lock monitor) does not light up ...................................................................................................................................459 M- 22 Swing prolix switch is turned ON (prolix), but (swing lock monitor) does not flash .................................................................................................................................459 M- 23 Service meter does not advance while engine is running M- 24 When starting switch is at OFF and time switch is pressed, time and service meter are not displayed M- 25 Defective fuel level sensor system ..........461 M- 26 Defective coolant temperature sensor system ........................................................................................................................................................................462 M- 27 Defective engine oil level sensor system ...........................................................................................................................................................................463 M- 28 Defective coolant level sensor system ..............................................................................................................................................................................464 M- 30 Wiper does not work or switch is not being used but wiper is actuated ..............................................................................................................................................465 MAINTENANCE STANDARD .........................................................................................................................................................................................................471 ENGINE MOUNT .............................................................................................................................................................................................................472 SWING MACHINERY SWING CIRCLE FINAL DRIVE .................................................................................................................................................................................476 IDLER CARRIER ROLLER .....................................................................................................................................................................................................481 TRACK ROLLER .............................................................................................................................................................................................................482 TRACK SHOE CONTROL VALVE SUCTION- SAFETY VALVE ...........................................................................................................................................................................493 SWING MOTOR WORK EQUIPMENT, SWING PPC VALVE ..............................................................................................................................................................................495 TRAVEL PPC VALVE SERVICE PPC VALVE .......................................................................................................................................................................................497 PPC SHUTTLE VALVE, TRAVEL JUNCTION VALVE .................................................................................................................................................................................498 EPC SOLENOID VALVE .......................................................................................................................................................................................................499 FOR LS VALVE .........................................................................................................................................................................................................499 CENTER SWIVEL JOINT ......................................................................................................................................................................................................500 ARM, BOOM SAFETY VALVE ...................................................................................................................................................................................................501 HYDRAULIC CYLINDER .......................................................................................................................................................................................................502 WORK EQUIPMENT ...........................................................................................................................................................................................................504 DIMENSION OF WORK EQUIPMENT ..............................................................................................................................................................................................506
DESCRIPTION:
KOMATSU PC200EN, PC200EL-6K SHOP MANUAL UEBM000301 – PDF DOWNLOAD
GENERAL PRECAUTIONS
Mistakes in operation are extremely dangerous.
Read the Operation and Maintenance carefully BEFORE operating the machine.
1. Before carrying out any greasing or repairs, read all the precautions given on the decals which are fixed to the machine.
2. When carrying out any operation, always wear safety shoes and helmet. Do not wear loose work clothes, or clothes with buttons missing.
• Always wear safety glasses when hitting parts with a hammer.
• Always wear safety glasses when grinding parts with a grinder, etc.
3. If welding repairs are needed, always have a trained, experienced welder carry out the work. When carrying out welding work, always wear welding gloves, apron, glasses, cap and other clothes suited for welding work.
4. When carrying out any operation with two or more workers, always agree on the operating procedure before starting. Always inform your fellow workers before starting any step of the operation. Before starting work, hang UNDER REPAIR signs on the controls in the operator’s compartment.
5. Keep all tools in good condition and learn the correct way to use them.
6. Decide a place in the repair workshop to keep tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.
S.S 18/12/24
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