Hitachi Zaxis 330 Workshop Manual
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Also See for Zaxis 330:
- Technical manual (226 pages) ,
- Workshop manual (6 pages) ,
- Technical manual (32 pages)
Table of Contents
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Workshop Manual
Service Manual (Manual No. KM-1HH-E) consists of the following three separate volumes;
Technical Manual (Operational Principle)
Technical Manual (Troubleshooting)
Workshop Manual
330 • 330LC
350H • 350LCH
370MTH
Excavator
Manual No. : KM-1HH-E
Vol. No.
: Vol. No. TO1HH-E
: Vol. No. TT1HH-E
: Vol. No. W1HH-E
: W1HH-E-01
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Table of Contents
Related Manuals for Hitachi Zaxis 330
Summary of Contents for Hitachi Zaxis 330
- Page 1 Manual No. : KM-1HH-E Vol. No. : W1HH-E-01 Workshop Manual 330 • 330LC 350H • 350LCH 370MTH Excavator Service Manual (Manual No. KM-1HH-E) consists of the following three separate volumes; Technical Manual (Operational Principle) : Vol. No. TO1HH-E Technical Manual (Troubleshooting) : Vol.
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Page 3: Additional References
(Note: Do not tear off the form. Copy it for us- age.): Publications Marketing & Product Support Hitachi Construction Machinery Co. Ltd. TEL: 81-29-832-7173 FAX: 81-29-831-1162 ADDITIONAL REFERENCES • • Operation Manual of the Engine Please refer to the materials listed below in addition •... -
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 • This is the SAFETY ALERT SYMBOL. • When you see this symbol on your machine or in this manual, be alert to the potential for personal injury. • Follow recommended precautions and safe operating practices. 001-E01A-0688 SA-688 UNDERSTAND SIGNAL WORDS... -
Page 6: Follow Safety Instructions
SAFETY FOLLOW SAFETY INSTRUCTIONS • Carefully read and follow all safety signs on the machine and all safety messages in this manual. • Safety signs should be installed, maintained and replaced when necessary. • If a safety sign or this manual is damaged or missing, order a replacement from your author- ized dealer in the same way you order other replacement parts (be sure to state 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 Wet weather gear SA-438 Respirator or filter mask. -
Page 8: General Precautions For Cab
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: Use Handholds And Steps
SAFETY USE HANDHOLDS AND STEPS • Falling is one of the major causes of personal injury. • When you mounting and dismounting the ma- chine, 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: Fasten Your Seat Belt
SAFETY FASTEN YOUR SEAT BELT • If the machine should overturn, the operator may become injured and/or thrown from the cab. Addi- tionally the operator may be crushed by the over- turning machine, resulting in serious injury or death. • Prior to operating the machine, thoroughly examine webbing,... -
Page 11: Operate Only From Operator'sseat
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: 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 13: Drive Machine Safely
SAFETY DRIVE MACHINE SAFELY • Before driving the machine, always confirm that the travel levers/pedals direction corresponds to the direction you wish to drive. • Be sure to detour around any obstructions. • Avoid traveling over obstructions. Soil, fragments of rocks, and/or metal pieces may scatter around the machine. -
Page 14: Avoid Injury From Rollaway Accidents
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 15: Avoid Injury From Back-Over And Swing Accidents
SAFETY AVOID INJURY FROM BACK-OVER AND SWING ACCIDENTS • If any person is present near the machine when backing or swinging the upperstructure, the ma- chine may hit or run over that person, resulting in serious injury or death. To avoid back-over and swing accidents: •... -
Page 16: Avoid Tipping
SAFETY AVOID TIPPING DO NOT ATTEMPT TO JUMP CLEAR OF TIPPING MACHINE---SERIOUS FATAL CRUSHING INJURIES WILL RESULT MACHINE WILL TIP OVER FASTER THAN YOU CAN JUMP FREE FASTEN YOUR SEAT BELT • The danger of tipping is always present when oper- ating on a grade, possibly resulting in serious injury SA-012 or death. -
Page 17: Avoid Power Lines
SAFETY AVOID POWER LINES • Serious injury or death can result if the machine or front attachments are not kept a safe distance from electric lines. • When operating near an electric line, NEVER move any part of the machine or load closer than 3 m (10 ft) plus twice the line insulator length. -
Page 18: Protect Against Flying Debris
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 19: 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, possi- bly resulting in serious injury or death. • Do not refuel the machine while smoking or when near open flame or sparks. -
Page 20: Safety Transporting
SAFETY SAFETY TRANSPORTING • The danger of tipping is present when load- ing/unloading the machine onto/from a truck or trailer bed. • Be sure to observe local regulations when transporting the machine on public roads. • Provide an appropriate truck or trailer for transporting the machine. -
Page 21: Practice Safe Maintenance
SAFETY PRACTICE SAFE MAINTENANCE To avoid accidents: • Understand service procedures before doing work. • Keep work area clean and dry. • Do not spray water or steam inside cab. • Never lubricate or service the machine while it is moving. -
Page 22: Warn Others Of Service Work
SAFETY • Use a portable safety light for working inside or under the machine. • Make sure that the bulb is enclosed by a wire cage. The hot filament of an accidentally broken bulb can ignite spilled fuel or oil. •... -
Page 23: Prevent Parts From Flying
SAFETY PREVENT PARTS FROM FLYING • Grease in the track adjuster is under high pressure. Failure to follow the precautions below may result in serious injury, blindness, or death. • Do not attempt to remove GREASE FITTING or VALVE ASSEMBLY. •... -
Page 24: 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 25: 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 26: 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. -
Page 27: Evacuating In Case Of Fire
SAFETY Check Emergency Engine Stop Switch: • If a fire breaks out, failure to release pressurized air inside the hydraulic tank will escalate fire, hamper- ing fire fighting. • Check the emergency engine stop switch func- tion every 250 hours: Start the engine and run it at slow Idle. -
Page 28: Beware Of Exhaust Fumes
SAFETY BEWARE OF EXHAUST FUMES • Prevent asphyxiation. Engine exhaust fumes can cause sickness or death. • If you must operate in a building, be sure there is adequate ventilation. Either use an exhaust pipe extension to remove the exhaust fumes or open doors and windows to bring enough outside air into the area. -
Page 29: Remove Paint Before Welding Or Heating
SAFETY REMOVE PAINT BEFORE WELDING OR HEATING • Hazardous fumes can be generated when paint is heated by welding, soldering, or using a torch. If inhaled, these fumes may cause sickness. • Avoid potentially toxic fumes and dust. • Do all such work outside or in a well-ventilated area. -
Page 30: Service Air Conditioning System Safely
SAFETY SERVICE AIR CONDITIONING SYSTEM SAFELY • If spilled onto skin, refrigerant may cause a cold contact burn. • Refer to the freon container for proper use when servicing the air conditioning system. • Use a recovery and recycling system to avoid venting freon into the atmosphere. -
Page 31: Dispose Of Waste Properly
DISPOSE OF WASTE PROPERLY • Improperly disposing of waste can threaten the en- vironment and ecology. Potentially harmful waste used with HITACHI equipment includes such items as oil, fuel, coolant, brake fluid, filters, and batteries. • Use leakproof containers when draining fluids. - Page 32 SAFETY (Blank) SA-28...
- Page 33 Group 1 Front Attachment the latest product information available at the time of publication. The right is Group 2 Cylinder reserved to make changes at any time SECTION 5 ENGINE without notice. COPYRIGHT(C)2005 Hitachi Construction Machinery Co., Ltd. Tokyo, Japan All rights reserved...
- Page 34 TECHNICAL MANUAL (Operational Principle) SECTION 1 GENERAL SECTION 3 COMPONENT OPERATION Group 1 Specifications Group 1 Pump Device Group 2 Component Layout Group 2 Swing Device Group 3 Component Specifications Group 3 Control Valve SECTION 2 SYSTEM Group 4 Pilot Valve Group 1 Control System Group 5 Travel Device Group 2 Hydraulic System...
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Page 35: General Information
SECTION 1 GENERAL INFORMATION — CONTENTS — Group 1 Precautions for Disassembling and Assembling Precautions for Disassembling and Assembling..........W1-1-1 Maintenance Standard Terminology....W1-1-7 Group 2 Tightening Torque Tightening Torque Specification ....W1-2-1 Torque Chart ..........W1-2-3 Piping Joint ..........W1-2-6 Periodic Replacement of Parts....W1-2-10 Group 3 Painting Painting............ - Page 36 (Blank) 1HHW-1-2...
- Page 37 GENERAL / Precautions for Disassembling and Assembling PRECAUTIONS DISASSEMBLING AND ASSEMBLING Precautions for Disassembling and Assembling • • Clean the Machine Precautions for Disassembling • To prevent dirt from entering, cap or plug the Thoroughly wash the machine before bringing it into the shop.
- Page 38 GENERAL / Precautions for Disassembling and Assembling • Precautions for Assembling Bleeding Air from Hydraulic System • Be sure to clean all parts and inspect them for When hydraulic oil is drained, the suction filter or the any damage. If any damage is found, repair or suction lines are replaced, or the removal and in- replace part.
- Page 39 GENERAL / Precautions for Disassembling and Assembling • Bleeding Air from Hydraulic Circuit • After refilling hydraulic oil, start the engine. While operating each cylinder, swing motor and travel motor evenly, operate the machine under light loads for 10 to 15 minutes. Slowly start each op- eration (never fully stroke the cylinders during ini- tial operation stage).
- Page 40 GENERAL / Precautions for Disassembling and Assembling Floating Seal Precautions 1. In general, replace the floating seal with a new one after disassembling. If the floating seal is to be reused, follow these procedures: (1) Keep seal rings together as a matched set with seal ring faces together.
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