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Wheel Loaders LW50

SERVICE
MANUAL

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Summary of Contents for LW50

Page 1: ...Wheel Loaders LW50 SERVICE MANUAL ...

Page 2: ...his book is subject to production variations Dimensions and weights are approximate only and the illustrations do not necessarily show machines in standard condition For exact information about any particular machine please consult your New Holland Construction Dealer PARTS AND ACCESSORIES Genuine parts and accessories have been specifically designed for these machines We would like to point out t...

Page 3: ...actionbydoingthis contacttheNewHollandConstructionofficeand providethemwith Yourname address andtelephonenumber Machine model and serial number Dealership name and address Machine purchase date and amount of use Nature of problem NEW HOLLAND CONSTRUCTION 245 E North Ave Carol Stream IL 60188 Ph 630 260 4000 WhencontactingNewHolland beawarethatyourproblemwilllikelyberesolvedinthedealership using th...

Page 4: ...ctory recommended 50 hour service You will be respon sible for the cost of lubricants fluids filters and other items replaced as part of normal maintenance Prior to taking the machine to your selling dealer for service it is recommended that you contact them to determine any other charges for which you may be responsible All data given in this book is subject to product variations Dimensions and w...

Page 5: ...IAL FOR SERIOUS INJURY IT IS USED TO WARN OPERATORS AND OTHERS TO EXERCISE EVERY APPROPRIATE MEANS TO AVOID A SURPRISE INVOLVEMENT WITH MACHINERY DANGER THE WORD DANGER DENOTES A FORBIDDEN PRACTICE IN CONNECTION WITH A SERIOUS HAZARD FAILURE TO FOLLOW THE CAUTION WARNING DANGER AND STOP INSTRUCTIONS MAY RESULT IN SERIOUS BODILY INJURY OR DEATH MACHINE SAFETY Additional precautionary statements ATT...

Page 6: ...ING OR SERVICING THIS MACHINE MOSTACCIDENTSARECAUSEDBYFAILUREOFSOMEINDIVIDUALTOFOLLOWSIMPLE AND FUNDAMENTAL SAFETY RULES OR PRECAUTION FOR THIS REASON MOST ACCIDENTS CAN BE PREVENTED BY RECOGNIZING THE REAL CAUSE AND DOING SOMETHING ABOUT IT BEFORE ACCIDENT OCCURS REGARDLESS OF THE CARE USED IN THE DESIGN AND CONSTRUCTION OF ANY TYPE OF EQUIPMENT THERE ARE MANYCONDITIONSTHATCAN T BECOMPLETELYSAFEG...

Page 7: ...TRUCTION CALIFORNIA PROPOSITION 65 WARNING Diesel engine exhaust and some of its constituents are know to the State of California to cause cancer birth defects andotherreproductiveharm Find manuals at https best manuals com ...

Page 8: ...FF THE GROUND 6 USE CAUTION WHEN SERVICING THE UNIT AROUND MOVING PARTS 7 DO NOT TILT ANY MOVABLE EQUIPMENT WITHOUT PROPER INSTRUCTION 8 DO NOT TILT ANY MOVABLE EQUIPMENT WITHOUT USING THE PROPER TOOLS 9 REINSTALL ALL SHIELDS REMOVED FOR SERVICE 10 NEVER LOOSEN ANY HYDRAULIC CONNECTIONS BEFORE RELIEVING THE PRESSURE IN THE HYDRAULIC SYSTEM 11 WEAR EYE PROTECTION SUCH AS GOGGLES ETC 12 WEAR EAR PRO...

Page 9: ... DO NOT ALLOW ANYONE TO OPERATE OR SERVICE THE MACHINE WITHOUT PROPER INSTRUCTION 29 OSHA REQUIRES THAT ALL OPERATORS BE INSTRUCTED ON THE PROPER OPERATION OF THE MACHINE BEFORE THEY OPERATE THE UNIT 30 DO NOT OPERATE THE LOADER IN ANY POSITION OTHER THAN WHILE IN THE OPERATOR S SEAT WITH THE SEAT BELT SECURELY FASTENED 31 BEFORE STARTING THE ENGINE BE SURE THAT ALL OPERATING CONTROLS ARE IN NEUTR...

Page 10: ...SURE ALL BYSTANDERS ARE AT A SAFE DISTANCE AWAY FROM THE MACHINE BEFORE STARTING THE ENGINE 46 DO NOT ALLOW ANYONE NEAR THE MACHINE WHILE THE ENGINE IS RUNNING AND THE MACHINE IS OPERATIONAL 47 WHEN USING THE MACHINE TO CRANE OBJECTS DO NOT ALLOW ANYONE TO RIDE ON OBJECTS BEING CRANED 48 DO NOT USE THE MACHINE AS A WORK PLATFORM FOR SUPPORTING MATERIALS 49 DO NOT LIFT PERSONNEL OR ALLOW PERSONNEL ...

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Page 13: ...unction with utilization of the machine maintenance and repairs during operation disposal of parts and consumables 5 Warning of special dangers Electric energy 6 Gas dust steam and smoke 6 Hydraulic and pneumatic equipment 7 Noise 7 Oil grease and other chemical substances 7 Transporting and towing recommissioning 7 Repair work safety instructions 8 ACCUMULATORS 9 Safety instructions 9 ENGINE 10 E...

Page 14: ...air work in a correct manner Using the Technical Handbook The Technical Handbook is divided into main and sub groups that deal with the machine as actually delivered Any auxiliary attachments or optional upgrading introduced later are not described The main table of contents allows to find the required information quickly For the sake of clarity the illustrations have been simplified and can there...

Page 15: ... non obser vance of the safety instructions 2796843 This wheel loader has been built in accor dance with state of the art standards and the recognized safety rules However operating the machine if a fault is suspected or has occurred or carrying out repair work inexpertly may endanger the lives of persons in con tact with it damage the machine and other prop erty The wheel loader must be stopped i...

Page 16: ...r must be tied back or otherwise secured garments must be close fitting and no jewellery such as rings may be worn Injury may result from being caught up in the machinery or from rings catching on mov ing parts Use protective equipment wherever required by the circumstances or by law Observe all safety instructions and warnings at tached to the machine See to it that safety instructions and warnin...

Page 17: ...Avoid any operational mode that might be prejudi cial to safety Before beginning work familiarize yourself with the surroundings and circumstances of the site such as obstacles in the working and travelling area the soil bearing capacity and any barriers separating the construction site from public roads Take the necessary precautions to ensure that the machine is used only when in a safe and reli...

Page 18: ...ent These activities may be executed by skilled personnel only Brief operating personnel before beginning spe cial operations and maintenance work and ap point a person to supervise the activities In any work concerning the operation conversion or adjustment of the machine and its safety ori ented devices or any work related to mainten ance inspection and repair always observe the start up and shu...

Page 19: ...mediately upon completion of the maintenance and repair work Ensure that all consumables and replaced parts are disposed of safely and with minimum envi ronmental impact Warning of special dangers Electric energy Use only original fuses with the specified current rating Switch off the machine immediately if trou ble occurs in the electrical system When working with the machine maintain a safe dist...

Page 20: ...hoses must comply with the technical re quirements Noise During operation all sound baffles of the machine must be closed Always wear the prescribed ear protectors Oil grease and other chemical sub stances When handling oil grease and other chemical substances observe the product related safety regulations Be careful when handling hot consumables risk of burning or scalding Transporting and towing...

Page 21: ...ow and experience relevant to repairing this or comparable machines Working at greater heights Always wear safety harnesses when work ing at greater heights Wear an approved safety harness it must be equipped with stabilizers and safety cables Pressurized or spring loaded units Never open defective pressurized or spring loaded units but replace them as an entirety In exceptional cases open only wh...

Page 22: ...omponents and all machine functions with a trial run Never release the machine for recommis sioning until it is fully functioning ACCUMULATORS Safety instructions 2800629 Accumulators are installed in the hydraulic system These accumulators contain nitro gen under high initial pressure Even when the hydraulic pressure in the system is reduced the nitrogen remains in the accumulator The accumulator...

Page 23: ...otential ignition sources such as unshielded lights or burning cigarettes away from the batteries The battery vap ours are highly flammable Explosion ha zard Never use assisted starting when the bat teries are defective or frozen Never connect batteries battery assemblies unless they have the same voltage Use only tested jumper cables with in sulated terminal clips and an adequate lead diameter En...

Page 24: ...ion and only by experienced per sons authorized to do such work Prior to any welding operations on the machine Disconnect the battery first the nega tive terminal and then at the positive terminal Disconnect the positive terminal at the alternator Protect the disconnected terminals and plugs from short circuiting and soiling by covering them with foil or adhesive tape Apply the welding current ter...

Page 25: ...TECHNICAL HANDBOOK LW 50 12 73179329 01 Notes 2800145 ...

Page 26: ...TECHNICAL HANDBOOK LW 50 1 73179329 02 Service Data General Service Data LW 50 ...

Page 27: ...Allgemein General 2 801 850 00 de us ...

Page 28: ...von Gasen D ampfen und Fl ussigkeiten 17 Conversion table for units of pressure in gases steam and fluids 17 Umrechnungstabelle f ur Einheiten von Energie Arbeit und W armemenge 18 Conversion table for units of power ernergy and heat quantity 18 Umrechnungstabelle f ur Einheiten der mechanischen Spannung Festigkeit 19 Conversion table for units of mechanical stress strength 19 Praktisch gleichwert...

Page 29: ...cylinders 28 Drehzahlen von Hydraulikmotoren 28 Speeds of hydraulic motors 28 ANZIEHDREHMOMENTE Allgemeine Hinweise 29 TIGHTENING TORQUES General information 30 Schrauben mit Regelgewinde nach DIN 13 13 31 Bolts with standard thread DIN 13 13 31 Schrauben mit metrischem Feingewinde DIN 13 13 32 Bolts with metric fine thread DIN 13 13 32 Anziehdrehmomente f ur SAE Flanschsystem 33 Tightening torque...

Page 30: ...auf wel ches Bauteil sich die nachstehenden Daten beziehen Zur Ersatzteilbestellung die zur Maschine geh orende Ersatzteilliste verwen den FOREWORD Anyone involved with commissioning operat ing inspecting and servicing for this con struction machine must read through and acquaint himself with the OPERATING MAN UAL and especially the Section FUNDA MENTAL SAFETY INSTRUCTIONS before starting work The...

Page 31: ...SERVICE DATEN SERVICE DATA 2 2 801 850 00 de us ...

Page 32: ...heit Auswahl 2 Unge SI Units weitere naugikeit Einheiten Selection of for exact for rough additional calculation calculation units appr 2 inexact L ange I m mm cm m m mm km Length dm m km Fl ache A mm2 cm2 dm2 m2 mm2 cm2 Area m2 Volumen V Vn mm3 cm3 dm3 m3 mm3 cm3 dm3 Volume m3 l l Masse m g mg g kg kg g mg g Mass Mg t kp s2 m Mg t Dichte g cm3 kg dm3 kg m3 g cm3 kg dm3 Density kg m3 kp s2 m4 Mass...

Page 33: ...ulation calculation units appr 2 inexact Zeitdauer t s min h s ms min h d Time d day Frequenz f Hz Hz 1 Hz 1 s Frequency Drehzahl n U min 1 s 1 min s min 60 Rate of revolutions Geschwindigkeit v m s km h m s km h Speed Beschleunigung a m s2 m s2 Acceleration Volumenstrom V m3 s m3 min m3 s m3 min Volume flow m3 h l h Massenstrom m kg s kg min kg s Mass flow kg h W armestrom kcal h W kW MW 1 kcal h...

Page 34: ...s2 Druck von Fluiden P Pi kp cm2 at atm N m2 bar mbar 1 kp cm2 1 kp cm2 1 bar 1 N m2 1 Pa Pressure of fluids 0 981 bar Pe mWS Torr Pa Pascal 1 atm 1 mWS 1Pa 10 5 bar 1 013 bar 0 1 bar P u Pu mmHg 1 mWS 1 bar 0 098 bar 105 N m2 Mechanische Spannung kp cm2 N m2 pa N mm2 1 kp mm2 1 kp mm2 1 N m2 1 Pa Mechanical stress kp mm2 9 81 N mm2 10 N mm2 1 kp cm2 1 kp cm2 9 81 N mm2 10 N cm2 Energie Arbeit W k...

Page 35: ... UK cm m Length n mile 1 inch Zoll 1 0 0833 0 0278 2 54 0 0254 1 foot Fu 12 1 0 3333 0 00019 0 00016 30 48 0 3048 1 yard 36 3 1 0 00057 0 00049 91 44 0 9144 1 statute mile Landmeile 63 360 5 280 1 760 1 0 86842 1609 3 1 UK nautical mile engl Seemeile 72 960 6 080 2 026 7 1 15151 1 1 853 2 1 cm 0 3937 0 0328 0 0109 1 0 01 1 m 39 370 3 2808 1 0936 0 00062 0 00054 100 1 ...

Page 36: ... in2 ft2 yd2 sqmile acre cm2 m2 Area 1 square inch Quadratzoll 1 0 0069 6 4516 1 square foot Quadratfu 144 1 0 111 929 03 0 0929 1 square yard Quadratyard 1 296 9 1 0 00021 8361 3 0 8361 1 square mile Quadratmeile 1 640 1 acre 43 560 4 840 0 00156 1 4 046 9 1 cm2 0 1550 1 0 0001 1 m2 1 550 0 10 764 1 1960 10 000 1 ...

Page 37: ... 1 0414 1 0668 1 0922 1 1176 1 1430 1 1684 1 1938 4 1 2192 1 2446 1 2700 1 2954 1 3208 1 3462 1 3716 1 3970 1 4224 1 4478 1 4732 1 4986 5 1 5240 1 5494 1 5748 1 6002 1 6256 1 6510 1 6764 1 7018 1 7272 1 7526 1 7780 1 8034 6 1 8288 1 8542 1 8796 1 9050 1 9304 1 9558 1 9812 2 0066 2 0320 2 0574 2 0828 2 1082 7 2 1336 2 1590 2 1844 2 2098 2 2352 2 2606 2 2860 2 3114 2 3368 2 3622 2 3876 2 4130 8 2 43...

Page 38: ...458 255 196 255 933 256 671 257 408 350 258 146 258 884 259 621 260 359 261 096 261 834 262 571 263 309 264 046 264 784 360 265 521 266 259 266 997 267 734 268 472 269 209 269 947 270 684 271 422 272 159 370 272 897 273 635 274 372 275 110 275 847 276 585 277 323 278 060 278 798 279 535 380 280 273 281 010 281 748 282 485 283 223 283 960 284 698 285 436 286 173 286 911 390 287 648 288 386 289 123 ...

Page 39: ...63 773 700 1050 774 438 775 175 775 913 776 651 777 388 778 126 778 863 779 601 780 338 781 076 1060 781 813 782 551 783 289 784 026 784 764 785 501 786 239 786 976 787 714 788 451 1070 789 189 789 927 790 664 791 402 792 139 792 877 793 615 794 352 795 090 795 827 1080 796 565 797 302 798 040 798 777 799 515 800 252 800 990 801 728 802 465 803 203 1090 803 940 804 678 805 415 806 153 806 890 807 ...

Page 40: ...7 042 1287 780 1288 517 1289 255 1289 992 1750 1290 730 1291 467 1292 205 1292 943 1293 680 1294 418 1295 155 1295 893 1296 630 1297 368 1760 1298 105 1298 843 1299 581 1300 318 1301 056 1301 793 1302 531 1303 268 1304 006 1304 743 1770 1305 481 1306 219 1306 956 1307 694 1308 431 1309 169 1309 906 1310 644 1311 382 1312 199 1780 1312 857 1313 594 1314 332 1315 069 1315 807 1316 544 1317 282 1318 ...

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