New Holland LW270, Service Manual

Page 1: ...Wheel Loaders LW270 SERVICE MANUAL ...

Page 2: ... 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 that non gen...

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 12: ...E pag 10 UNITS OF MEASURE USED IN THE MANUAL pag 11 TIGHTENING TORQUES pag 12 ENGINE Section 1 TRANSMISSION Section 2 BRAKING SYSTEM Section 3 STEERING SYSTEM Section 4 BUCKET BOOM AND FRAME Section 5 ATTACHMENT HYDRAULIC SYSTEM Section 6 ELECTRICAL SYSTEM Section 7 CAB Section 8 ...

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Page 14: ...rols before moving off Report any malfuctioning part or system to the maintenance managers for proper action Ensure allprotectiveguardsandpanelsaswellasallsafety devices provided are in place and in good operating condition Ensure that nobody is in the machine operating range before moving off or operating the attachment WALK COMPLETELY AROUND the machine before mounting Sound the horn Before star...

Page 15: ...mances of the machine they are driving When working on slopes or near sudden level drops in the terrain avoid areas where ground is loose or soft since overturn or loss of machine control could result If noise level is high and continuosly exceeds 90 dBA over eight hours at the operator s ear wear approved ear protection in compliance with local regulations Where counterweights are provided do not...

Page 16: ...hanging garments such as ties torn clothing scarves such as inclines overhangs trees demolition rubble fires ravines steep slopes rough terrain ditches crowns ridge trenches heavy traffic crowded parking and service areas closed ambients In such conditions proceed with extreme care When ever possible avoid going over obstacles such as very rough terrain rocks logs steps ditches railroad tracks Whe...

Page 17: ...he starting liquid if you are smoking or near open flames These fluids are flammable BRAKES ARE INOPERATIVE when manually released for servicing Provisions must be made to maintain control of the machine using suitable blocks or other means Thefuel fillerpipenozzlemustbeconstantlykeptincontact with the filler neck Keep this contact from the beginning to the end of the fuelling operation to avoid p...

Page 18: ...if they are not welding DO NOT LOOK THE WELDING ARC WITHOUT PROPER EYE PROTECTION Becomeacquaintedwithallyour jackingequipment andits capacity Remember that the jacking point on the machine should be appropriate for the load applied Also be sure the support area of the jack at the machine and on the ground is appropriate and stable Any load supported by a jack represents a possible hazard Always t...

Page 19: ...osition Prior to any intervention install all safety devices according to current regulations In case the attachment is to be oper ated through the machine hydraulic system for mainte nance purposes remember to do so only while sitting in the driver s seat Make sure that no personnel is within the machine operating range Before operating the attachment alert personnel by sounding the horn and by v...

Page 20: ...pair Manuals available from NEW HOLLAND CONSTRUCTION Dealers This has the purpose of avoiding that during disassembly operations dangerous situations may arise both for the personnel involved and the environment In the machine are present Fluids under pressure hydraulic system cooling system etc Gases air conditioning system and accumulator if installed Mechanical devices mounted under pressure tr...

Page 21: ...gagement sensor 15 1 bar Transmission induction sensors to gear teeth adjust Clearance 0 5 0 8 mm Transmission oil high temperature sensor setting 122 3 C AXLES Axles complete with disc brakes in oil bath Self locking differentials Planetary final drives Stiff front axle support structure type reduction ratio 1 25 381 Oscillating rear axle support structure type reduction ratio 1 25 381 TIRES Type...

Page 22: ...Travel Stabilizer system Three position control switch as follows Position 0 disengaged Position 1 LTS engaged with speeds exceeding 7 kph Position 2 to be used only for maintenance or repair LTS engaged at all times Accumulator safety valve setting 120 bar ELECTRICAL SYSTEM Operating voltage 24 V Batteries in series 2 160 Ah maintenance free type DELCO starter motor Rated power 42MT 24V 7 8 kW DE...

Page 23: ...SG CCMCD4 15W 40 10 50 MIL L 2104E NH 324 G 10W 30 30 20 Cooling 77 NH 900 A system Transmission 35 9624451 API CF 4 SG CCMCD4 15W 40 10 50 MIL L 2104E NH 324 G 10W 30 20 50 Hydraulic and 220 86109085 ISO VG46 DIN 51524 20 50 brake system Part 1 e 2 QFH583 HD front 48 rear 48 Lubrication of pivot points Axles 986180405 QFH 585 GR NLGI 2 40 50 320 961294 API GL5 QFH 586 TR 85W 90 20 50 Fuel tank 38...

Page 24: ...lows g Coating index digit It indicates the coating applied to a defined item Note For current service use the following equivalences can be considered to be valid kg daN kg cm2 bar kgm daNm Note In case in the different sections the tightening torque is not listed refer to the table TIGHTE NING TORQUES only after identifying exactly the component UNITS OF MEASURE Units of measure used in this man...

Page 25: ...nium 6 Copper Copper Kupfer Copper Copper Cuivre 7 Blank for other metallic materials Resistance class and material TORQUE TABLES If correct torque is not specifically indicated in the relevant pages refer to the following tables WARNING Lubricate all hardware until 24 dia with engine oil Use grease for larger diameters Tolerance on torque 5 Resistance classes R80 R100 R120 must be understood as f...

Page 26: ... 18 19 M16 x 1 5 30 17 34 20 M16 x 1 5 30 33 M16 x 2 M16 x 2 M18 x 1 5 45 25 50 29 M18 x 1 5 45 48 M18 x 2 5 M18 x 2 5 M20 x 1 5 60 30 5 64 5 35 M20 x 1 5 60 65 M20 x 2 5 M20 x 2 5 M22 x 1 5 80 41 M22 x 1 5 80 90 M22 x 2 5 M22 x 2 5 M24 x 2 100 47 108 52 5 M24 x 2 100 110 M24 x 3 M24 x 3 M27 x 2 95 40 1 M27 x 2 100 M30 x 2 130 49 4 M30 x 2 140 M33 x 2 170 M33 x 2 190 M36 x 3 220 M36 x 3 240 normal...

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Page 28: ...SECTION 1 ENGINE TABLE OF CONTENTS PARAGRAPH 1 1 1 2 1 3 1 4 SUBJECT IDENTIFICATION DATA GENERAL SPECIFICATIONS OF SERIES M11 ENGINE ENGINE SUPPORTS DIAGRAMS OF SERIES M11 ENGINES PAGE 1 2 5 6 ...

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Page 30: ... itself It provides information relative to the calibration of the pump Data plates of series M11 engine The engine identification plate provides specific information for your engine Note the Engine Data plate must not be replaced without approval by Cummins Engine Company Inc The identification plate is located on the injection pump side of the engine on the rocker arm cover side 1 Engine serial ...

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