Hitachi ZW 20 Technical Manual
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Hitachi ZW 20 Technical Manual

Hitachi ZW 20 Technical Manual

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  • Page 2 Find manuals at https://best-manuals.com...

  • Page 3: Additional References

    E-mail: dc@hitachi-kenki.com ADDITIONAL REFERENCES • Please refer to the other materials (operator’s manual, parts catalog, engine technical material and Hitachi training material etc.) in addition to this manual. MANUAL COMPOSITION • • Information included in the Workshop Manual: This manual consists the Technical Manual and the Workshop Manual.

  • Page 4: Units Used

    INTRODUCTION SAFETY ALERT SYMBOL AND HEADLINE NOTATIONS In this manual, the following safety alert symbol and • CAUTION: signal words are used to alert the reader to the Indicated potentially hazardous situation which potential for personal injury of machine damage. could, if not avoided, result in personal injury or death.

  • Page 5: Recognize Safety Information

    SAFETY RECOGNIZE SAFETY INFORMATION • These are the SAFETY ALERT SYMBOLS. • When you see these symbols on your machine or in this manual, be alert to the potential for personal injury. • Follow recommended precautions and safe operating practices. 00-E0A-000 SA-688 UNDERSTAND SIGNAL WORDS...

  • Page 6: Follow Safety Instructions

    Hitachi Warranty Policy. • Do not use attachments and/or optional parts or equipment not authorized by Hitachi. Failure to do so may deteriorate the safety, function, and/or service life of the machine. In addition, personal accident, machine...

  • Page 7: Wear Protective Clothing

    SAFETY WEAR PROTECTIVE CLOTHING • Wear close fitting clothing and safety equipment appropriate to the job. You may need: A hard hat Safety shoes Safety glasses, goggles, or face shield Heavy gloves Hearing protection Reflective clothing SA-438 Wet weather gear Respirator or filter mask.
  • Page 8 SAFETY GENERAL PRECAUTIONS FOR CAB • Before entering the cab, thoroughly remove all dirt and/ or oil from the soles of your work boots. If any controls such as a pedal is operated while with dirt and/or oil on the soles of the operator’s work boots the operator’s foot may slip off the pedal, possibly resulting in a personal accident.

  • Page 9: Adjust The Operator's Seat

    SAFETY USE HANDRAILS AND STEPS • Falling is one of the major causes of personal injury. • When you get on and off the machine, always face the machine and maintain a three-point contact with the steps and handrails. • Do not use any controls as hand-holds. •...
  • Page 10 SAFETY FASTEN YOUR SEAT BELT • If the machine should overturn, the operator may become injured and/or thrown from the cab. Additionally the operator may be crushed by the overturning machine, resulting in serious injury or death. • Prior to operating the machine, thoroughly examine webbing, buckle and attaching hardware.

  • Page 11: Jump Starting

    SAFETY OPERATE ONLY FROM OPERATOR'S SEAT • Inappropriate engine starting procedures may cause the machine to runaway, possibly resulting in serious injury or death. • Start the engine only when seated in the operator's seat. • NEVER start the engine while standing on the track or on ground.
  • Page 12 SAFETY INVESTIGATE JOB SITE BEFOREHAND • When working at the edge of an excavation or on a road shoulder, the machine could tip over, possibly resulting in serious injury or death. • Investigate the configuration and ground conditions of the job site beforehand to prevent the machine from falling and to prevent the ground, stockpiles, or banks from collapsing.
  • Page 13 SAFETY EQUIPMENT OF HEAD GUARD, ROPS, FOPS In case the machine is operated in areas where the possibility of falling stones or debris exist, equip a head guard, ROPS, or FOPS according to the potential hazardous conditions. (The standard cab for this machine corresponds to ROPS and FOPS.) Any modification of the ROPS structure will modify its performances and its certification will be lost.

  • Page 14: Keep Riders Off Machine

    SAFETY KEEP RIDERS OFF MACHINE • Riders on machine are subject to injury such as being struck by foreign objects and being thrown off the machine. • Only the operator should be on the machine. Keep riders off. • Riders also obstruct the operator’s view, resulting in the machine being operated in an unsafe manner.
  • Page 15 SAFETY DRIVE MACHINE SAFELY (WORK SITE) • Before driving the machine, always confirm that the steering wheel and Forward/Reverse lever direction corresponds to the direction you wish to drive. • Be sure to detour around any obstructions. • Driving on a slope may cause the machine to slip or overturn, possibly resulting in serious injury or death.
  • Page 16 SAFETY DRIVE ON SNOW SAFELY • Beware of the possibility of slipping or turning over the machine when driving on frozen snow surfaces. • The machine may slip more easily than expected on frozen snow surfaces even if the inclination is small. Reduce speed when driving.
  • Page 17 SAFETY AVOID INJURY FROM ROLLAWAY ACCIDENTS • Death or serious injury may result if you attempt to mount or stop a moving machine. To avoid rollaways: • Select level ground when possible to park machine. • Do not park the machine on a grade. •...
  • Page 18 SAFETY AVOID ACCIDENTS FROM BACKING UP AND TURNING • Make sure no one is working under or close to the machine before backing up or turning the machine to avoid personal injury and/or death by being run over or entangled in the machine.

  • Page 19: Avoid Tipping

    SAFETY AVOID POSITIONING BUCKET OVER ANYONE • Never allow the bucket to pass over co-workers and/or the dump truck operator’s cab. Falling soil from the bucket or contact with bucket may cause serious personal accidents and/or damage to the machine. •...
  • Page 20 SAFETY NEVER UNDERCUT A HIGH BANK • The edges could collapse or a land slide could occur causing serious injury or death. 026-E0A-059 SA-4EK-06 DIG WITH CAUTION • Accidental severing of underground cables or gas lines may cause an explosion and/or fire, possibly resulting in serious injury or death.

  • Page 21: Precautions For Operation

    SAFETY AVOID POWER LINES Serious injury or death can result from contact with electric lines. Never move any part of the machine or load closer to any electric line than 3 m (0 ft) plus twice the line insulator length. 029-E0A-0455 SA-4EK-09 PRECAUTIONS FOR OPERATION...
  • Page 22 SAFETY PROTECT AGAINST FLYING DEBRIS • If flying debris hit eyes or any other part of the body, serious injury may result. • Guard against injury from flying pieces of metal or debris; wear goggles or safety glasses. • Keep bystanders away from the working area before striking any object.

  • Page 23: Store Attachments Safely

    SAFETY STORE ATTACHMENTS SAFELY • Stored attachments such as buckets, hydraulic hammers, and blades can fall and cause serious injury or death. • Securely store attachments and implements to prevent falling. Keep children and bystanders away from storage areas. 504-E0A-0034 SA-034 TRANSPORT SAFELY • Take care the machine may turn over when loading or...

  • Page 24: Handle Fluids Safely−Avoid Fires

    SAFETY HANDLE FLUIDS SAFELY−AVOID FIRES • Handle fuel with care; it is highly flammable. If fuel ignites, an explosion and/or a fire may occur, possibly resulting in serious injury or death. • Do not refuel the machine while smoking or when near open flame or sparks.

  • Page 25: Practice Safe Maintenance

    SAFETY PRACTICE SAFE MAINTENANCE To avoid accidents: • Understand service procedures before starting work. • Keep the work area clean and dry. • Do not spray water or steam inside cab. • Never lubricate or service the machine while it is moving. •...

  • Page 26: Support Machine Properly

    SAFETY • Sufficiently illuminate the work site. Use a maintenance work light when working under or inside the machine. • Always use a work light protected with a guard. In case the light bulb is broken, spilled fuel, oil, antifreeze fluid, or window washer fluid may catch fire.
  • Page 27 SAFETY SUPPORT MAINTENANCE PROPERLY • Explosive separation of a tire and rim parts can cause serious injury or death. • Do not attempt to mount a tire unless you have the proper equipment and experience to perform the job. Have it done by your authorized dealer or a qualified repair service.

  • Page 28: Prevent Burns

    SAFETY PREVENT BURNS Hot spraying fluids: • After operation, engine coolant is hot and under pressure. Hot water or steam is contained in the engine, radiator and heater lines. Skin contact with escaping hot water or steam can cause severe burns. •...

  • Page 29: Avoid High-Pressure Fluids

    SAFETY AVOID HIGH-PRESSURE FLUIDS • Fluids such as diesel fuel or hydraulic oil under pressure can penetrate the skin or eyes causing serious injury, blindness or death. • Avoid this hazard by relieving pressure before disconnecting hydraulic or other lines. •...

  • Page 30: Prevent Fires

    SAFETY PREVENT FIRES Check for Oil Leaks: • Fuel, hydraulic oil and lubricant leaks can lead to fires. • Check for oil leaks due to missing or loose clamps, kinked hoses, lines or hoses that rub against each other, damage to the oil-cooler, and loose oil-cooler flange bolts.
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