New Holland LW90 Wheel Loader Service Manual
FILE DETAILS:
New Holland LW90 Wheel Loader Service Manual
Language : English
Pages : 272
Downloadable : YES
Format : PDF
Size : 6.56 MB
DESCRIPTION:
New Holland LW90 Wheel Loader Service Manual
FOREWORD:
Read this Manual carefully betore starting, operating, mahttalring, fuelling or servicing the machine. Read and comply with all saiety precautions before any intervention. Do not allow urmmhorlsed personnel to operate or service this machine. 00 not wear rings. wristwatohes. iewellory, loose or hang- lng gamma, such as ties, tom clothing. scarves. mout- toned or unzipped jackets that can get caught in moving parts. Wear certified safety clothes such as: hard hat. no- slip tootweer, heavy gloves. ear protection.
- safety gleeaes, reflector vests, respirators. Ask your employer about spe- cific calety equipment requirements. Keep the operator’s compartment. step plates, grab—roan and handea clean and clear oi foreign obiects. oil, grease. mud or snow to minimize the danger of slipping or stum- bling Remove mud or grease from your shoos beiore attempting to mount or operate the machine.
- Donotiump on orotfthe machine. Always keep both hands and one foot, or both feet and one hand in contact with steps and grab rails. ’ Do not use controls or hoses as hand holds when climbing on or oil the machine. Hoses and controls are movable parts and do not provide solid support. Besides. controls maybeinadvertentiymoved and cause unexpeded move- ment of the machine or its attachments.
- Never operate the machine or its attachments from any position other than sitting in the driver’s seat. Keep head. body, limbs. hands and test inside the Opera- tors compartment at all times to reduce exposure to enamel hazards . Be careiul oi pcesmie slippery conditions oi the steps and hand rails as well as oi the ground around the machine. Do not leave the machine until it is has come to a complete step. ‘ Check the seat safety belt at least twice per your and replace it it it shows signs of wear. iraying or other weakness that Could lead to failure.
TABLE OF CONTENTS:
New Holland LW90 Wheel Loader Service Manual
MAIN MENU............................................. 1 LW90 Wheel Loader..................................... 1 Table of Contents..................................... 4 Summary............................................... 4 Specifications.................................... 5 Capabilities and Fluid Types...................... 7 Safety Rules...................................... 8 Units of Measure Used In the Manual............... 15 Tightening Torques................................ 16 Section 1 - Engine.................................... 18 General Description............................... 19 General Characteristics........................... 20 Specifications and Assembly Clearances............ 23 Fuel Injection Pump Specifications................ 29 External Views.................................... 30 Engine Supports................................... 31 Main Tightening Torques and Pressure Ports........ 32 Lubrication System................................ 33 Cooling System.................................... 34 Fuel System....................................... 37 Air Intake and Exhaust System..................... 39 Electrical System................................. 42 Section 2 - Transmission.............................. 46 General Description............................... 47 Torque Convertor - Transmission................... 48 Torque Convertor.................................. 53 Transmission - Convertor Pump..................... 54 Transmission...................................... 55 Transmission Disassembly/ Re-Assembly............. 81 Oil Circuit.......................................115 Drive Shafts......................................117 Axles (Front and Rear)............................119 Wheels............................................158 Section 3 - Braking System............................160 General Description...............................161 Operation.........................................163 Disc Brake........................................166 Brake Pedal Valve.................................167 Parking Brake Control Valve.......................170 Parking Brake.....................................171 Other Components..................................173 Brake Pedal Valve Hydraulic Connections...........174 Diagnostics and Testing...........................175 Section 4 - Steering System...........................184 General Description...............................185 Principles of Operation of Main Priority Valve....189 Steering Valve (Orbitrol).........................190 Section 5 - Bucket Booms and Frame....................202 Load Handling System..............................203 Boom, Bellcrank and Bucket........................204 Frame Pivot Pins..................................209 Section 6 - Attachment Hydraulic System...............210 General Description...............................211 Oil Circuit.......................................212 Hydraulic System Pump.............................214 Attachment Control Valve..........................219 Control Valve Controls............................232 Hydraulic Oil Reservoir...........................233 Cylinders.........................................234 L.T.S. Anti-Pitch System..........................237 Auxiliary Hydraulics Operation (Option)...........243 Section 7 - Electrical System.........................244 Safety Rules......................................245 General Lay-Out of Electrical System..............246 Logic Board.......................................247 Connectors........................................249 Cab Instrument Cluster............................251 Switch Panel......................................253 Gearshift Control.................................254 Components on Machine.............................255 Section 8 - Cab.......................................262 General Description...............................263 Windscreen Wipers and Washers.....................264 Heater............................................265 Glasses...........................................266 Repair............................................270
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