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HU1-2-2

INTRODUCTION WX90

15501   9-35990

2.3

SYMBOLS AND INDICATIONS

In this service manual, symbols and indications are used  to draw the attention on important points for safety
and quality.

2.3.1 SAFETY

This safety symbol is used for important safety message.  When you see this symbol, be alert to the
potential for personal injury. Strictly follow the recommended precautions.

2.3.2 INDICATIONS

Reading this service manual you can find indications as

 “IMPORTANT” 

or

 “NOTE” 

that have the following

meaning:

•

IMPORTANT

Indicates a situation which, if not avoided, could caused damages to the machine.

•

NOTE

Indicates supplementary technical information or know-how.

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Summary of Contents for WX90

Page 1: ...Excavator WX90 Service Manual Cre 9 35990...

Page 2: ...ion and design of the machine without prior notice and without incurring any obligation to modify units previously sold The description of the models shown in this manual has been made in accordance w...

Page 3: ...to the following Operation and maintenance instruction manual Spare parts catalog DESCRIPTION OF THE COMPLETE WORKSHOP MANUAL The complete repair manual consists of one volume WX90 Workshop Manual Exc...

Page 4: ...t an accident The complete observance of one simple rule would prevent many thousand serious injuries each year That rule is Never attempt to clean oil or adjust a machine while it is in motion ATTENT...

Page 5: ...INDEXES HU1 1 1 Group 2 INTRODUCTION HU1 2 1 2 1 Introduction 2 2 Manual handling 2 3 Symbols and indications Group 3 FEATURES OF THE MANUAL HU1 3 1 3 1 Manual composition 3 2 Brief information for m...

Page 6: ...15501 9 35990 Find manuals at http best manuals com search s CASE 935990...

Page 7: ...V4 5 Group 6 CENTER JOINT CJ4 6 Group 7 STEERING VALVE SV4 7 Group 8 BRAKE PEDAL VALVE BRV4 8 Group 9 ACCUMULATORS ACC4 9 Group 10 SOLENOID VALVES SOV4 10 SECTION 5 UNDERCARRIAGE Group 1 UNDERCARRIAGE...

Page 8: ...oup 3 PREPARATION FOR PERFORMANCE TEST PT10 3 Group 4 EXCAVATOR PEFORMANCE TEST PT10 4 Group 5 COMPONENTS PERFORMANCE TEST PT10 5 SECTION 11 ENGINE Group 10 GENERAL INFORMATION EM11 10 Group 11 SPECIF...

Page 9: ...of cost management The information quoted in this service manual are supplied also to be used for training aids Therefore it is advisable to be used in the training of new personnel that will be empl...

Page 10: ...age When you see this symbol be alert to the potential for personal injury Strictly follow the recommended precautions 2 3 2 INDICATIONS Reading this service manual you can find indications as IMPORTA...

Page 11: ...uring the use and maintenance are given in this Section Furthermore safety decals and relate indications used on the machine are listed on this Section SECTION 3 SPECIFICATION This Section quotes the...

Page 12: ...describes the electric system of the machine the main electrical component and the connection with the electrical users SECTION 9 TROUBLESHOOTING IIn this Section information is provided for troubles...

Page 13: ...embly D A Disassembly Assembly In the Operation Principle the assemblies and their components are described with technical data In the disassembly and assembly the procedures are described to perform...

Page 14: ...HU1 3 4 FEATURES OF THE MANUAL WX90 15501 9 35990 NOTES...

Page 15: ...1 INFORMATION SECTION SR2 1 1 Generalities Starting Operating Stopping Group 1 Maintenance SR2 1 5 Generalities Transfers and transportation Engine Electrical system Hydraulic system Tools Removing tw...

Page 16: ...15501 9 35990...

Page 17: ...or shoes with the soles made of highly no slip rubber Do not leave the machine until it has come to a complete stop Always check height width and weight limitations which may be encountered in the wo...

Page 18: ...Operators must know the performance of the machine they are driving When working on slopes or near sudden level drops in the terrain pay attention not to lose adherence and avoid loose soft ground si...

Page 19: ...or within the excavator operating range for any reason whatever Never exceed specified loading capacity Incorrect fastening of slings or chains may cause boom dipper failure or failure of the lifting...

Page 20: ...This signal man flag man must be in direct communication with the Operator and the Operator must pay undivided attention to the signals supplied When working in or near pits in ditches or very high wa...

Page 21: ...operator s seat Before starting the machine or moving its attachment sound the horn and require that nobody remains near the machine Raise the attachment slowly Always lock all moving components or p...

Page 22: ...erator s compartments of the machines involved are fitted with proper guards against cable or chain backlash Keep the maintenance area clean and dry at all times Clean immediately all water and oil sp...

Page 23: ...able to remove harmful exhaust fumes Do not place head body limbs feet hands or fingers near rotating fans or belts Be especially careful near blower fans Loosen the radiator cap very slowly to reliev...

Page 24: ...s proper securing devices are provided TYRES AND WHEELS Make sure that the inflation pressure of the tyres is according to the specifications issued by the Manufacturer and check it periodically Shoul...

Page 25: ...ndicates an imminent hazardous situation which if not avoided will result in death or serious injury WARNING indicated a potential hazardous situation which if not avoided could result in death or ser...

Page 26: ...ons Unauthorised changes to the machine may impair function and or safety and affect machine life Safety messages in this Chapter SAFETY PRECAUTIONS are intended to illustrate basic safety procedures...

Page 27: ...hine Operating equipment safely requires the full attention of the operator Do not wear radio or music headphones while operating the machine PROTECT AGAINST NOISE Prolonged exposure to loud noise can...

Page 28: ...d off a moving machine Be careful of slippery conditions of platforms steps and handrails when leaving the machine ADJUST THE OPERATOR S SEAT A seat poorly adjusted for operator or work requirements m...

Page 29: ...Be sure to remain seated with the seat belt securely fastened at all times when the machine is in operation to minimise injury hazard in case of accident After a significant accident replace the seat...

Page 30: ...ll procedures detailed in the chapter OPERATING INSTRUCTIONS The operator should be sitting in the driver s seat to keep the machine under control when the engine starts Starting the engine with boost...

Page 31: ...road shoulders When working on an incline or road shoulder employ a signal person as required Confirm that your machine is equipped with a F O P S Falling Object Protective Structure cab before workin...

Page 32: ...e Make sure that all personnel obey the signal person s directions F3614 CONFIRM DIRECTION WHERE THE MACHINE IS TO BE DRIVEN Instinctive travel pedal operation may result in serious injury and even de...

Page 33: ...cause the machine skidding or overturning When travelling up or down a slope make sure the tyres are oriented in the slope direction Turning on an incline may cause the machine to tip over If turning...

Page 34: ...achine Do not park the machine on a grade Park at a reasonable distance from other machines Lower the bucket and or other work tools to the ground Lower blade and stabilizers to the ground Run the eng...

Page 35: ...ody is standing in that area USE A SIGNAL PERSON WHEN BACKING UP IF YOUR VIEW IS OBSTRUCTED ALWAYS KEEP THE SIGNAL PERSON IN VIEW Use hand signals which conform to your local regulations when work con...

Page 36: ...rea of the bucket swing radius to prevent anyone from entering the work area F5045 NEVER MOVETHE BUCKET OVER ANY ONE Never lift move or swing bucket above anyone or a truck cab Serious injury or machi...

Page 37: ...and close to the machine Reduce machine operating speed to avoid tipping or slipping Avoid changing direction when travelling on grades NEVER attempt to travel across a grade steeper than 15 degrees...

Page 38: ...wer gas telephone water sewers telecommunications etc to obtain information about underground utility lines F2446 OPERATE WITH CAUTION If the front attachment or any other part of the machine hits aga...

Page 39: ...injury F1466 PARK MACHINE SAFELY Before working on the machine Park the machine on a level surface Lower the bucket to the ground Turn the auto idle A I switch off Move the upperstructure swing lever...

Page 40: ...inders as shown in the homologation configuration Lock cylinders cocks reference marks Lift stabilizers and or blade as shown in the homologation configuration Fit lighting devices as shown in the hom...

Page 41: ...auto idle A I switch off when loading or unloading the machine to avoid unexpected speed increase due to unintentional operation of a control lever 5 Always select the slow speed mode with the travel...

Page 42: ...tipping while the upperstructure is rotating 10 Keep the dipper tucked under and rotate the upperstructure slowly for best stability 11 Securely fasten machine frame using chains or cables Refer to t...

Page 43: ...not leave the machine unattended if servicing requires the engine running If the machine is to be raised place boom and dipper at an angle of 90 to 110 Lock machine components which should be raised f...

Page 44: ...the machine first Always lower the attachment or tool to the ground before working on the machine If you must work on a lifted machine or attach ment securely support the machine or attachment Do not...

Page 45: ...Slow down or stop and let tyres get cool When adjusting tyre pressure keep at a certain distance and protect yourself Use an extension equipped with a quick connection for the valve handling Always s...

Page 46: ...ome hot during operation The engine hoses lines and other parts become hot as well Wait for the oil and components to cool down before starting any maintenance or inspection work F1477 F1469 AVOID HIG...

Page 47: ...shift or after eight hours of operation for loose kinked hardened or frayed electrical cables and wires DO NOT OPERATE MACHINE if cable or wires are loose kinked etc Tighten repair or replace any loos...

Page 48: ...osition if there is time Use a fire extinguisher if there is time Exit the machine F3638 F1446 BEWARE OF EXHAUST FUMES Prevent asphyxiation Engine exhaust fumes can cause sickness or death If you must...

Page 49: ...pipes or tubes that contain flammable fluids Clean them thoroughly with non flammable solvent before welding or flame cutting them F5840 F1470 AVOID HIGH PRESSURE FLUIDS Avoid this hazard by relievin...

Page 50: ...acid Flush your eyes with water for 10 15 minutes Get medical attention immediately If acid is swallowed Drink large amounts of water of milk Then drink milk of magnesia beaten eggs or vegetable oil...

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