HITACHI ZX 330 330LC 350LC H, N 350H 370MTH Service Manual

                                                    

INTRODUCTION IN-01 ADDITIONAL REFERENCES  Please refer to the materials listed below in addition to this manual.  The Operators Manual  The Parts Catalog  Operation Manual of the Engine  Parts Catalog of the Engine  Hitachi Training Material MANUAL COMPOSITION  This manual consists of three portions: the Techni- cal Manual (Operational Principle), the Technical Manual (Troubleshooting) and the Workshop Man- ual.  Information included in the Technical Manual (Operational Principle): technical information needed for redelivery and delivery, operation and activation of all devices and systems.  Information included in the Technical Manual (Troubleshooting): technical information needed for operational per- formance tests, and troubleshooting procedures.  Information included in the Workshop Manual: technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal/installation and assem- ble/disassemble procedures.

INTRODUCTION IN-02 PAGE NUMBER  Each page has a number, located on the center lower part of the page, and each number contains the following information: Example : T 1 -3 -5 SAFETY ALERT SYMBOL AND HEADLINE NOTATIONS In this manual, the following safety alert symbol and signal words are used to alert the reader to the potential for personal injury of machine damage. This is the safety alert symbol. When you see this symbol, be alert to the potential for personal injury. Never fail to follow the safety instructions prescribed along with the safety alert symbol. The safety alert symbol is also used to draw attention to component/part weights. To avoid injury and damage, be sure to use appropri- ate lifting techniques and equipment when lifting heavy parts.  CAUTION: Indicated potentially hazardous situation which could, if not avoided, result in personal injury or death.  IMPORTANT: Indicates a situation which, if not conformed to the instructions, could result in damage to the machine.  NOTE: Indicates supplementary technical information or know-how. Consecutive Page Number for Each Group Group Number Section Number T: Technical Manual W: Workshop Manual

INTRODUCTION IN-03 UNITS USED  SI Units (International System of Units) are used in this manual. MKSA system units and English units are also indicated in parenthheses just behind SI units. Example : 24.5 MPa (250 kgf/cm 2 , 3560 psi) A table for conversion from SI units to other system units is shown below for reference purposees. Quantity To Convert From Into Multiply By MPa kgf/cm 2 10.197 Pressure MPa psi 145.0 kW PS 1.360 Power kW HP 1.341 Temperature C F C1.8+32 km/h mph 0.6214 Velocity min -1 rpm 1.0 Flow rate L/min US gpm 0.2642 mL/rev cc/rev 1.0 Quantity To Convert From Into Multiply By mm in 0.03937 Length mm ft 0.003281 L US gal 0.2642 L US qt 1.057 Volume m 3 yd 3 1.308 Weight kg lb 2.205 N kgf 0.10197 Force N lbf 0.2248 N m kgf m 1.0197 Torque N m lbf ft 0.7375

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HITACHI ZX 330 330LC 350LC H, N 350H 370MTH Service Manual

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