Komatsu PC300-5 & PC300LC-5 Hydraulic Excavator Manual (EN)

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Operation & Maintenance SEAM02070501 Manual PC3004 PC3OOLC-5 HYDRAULIC EXCAVATOR SERIAL NUMBERS PC3004 :20001 a"(j"p PC3OOLC-5 :20001 KOMRdhI

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FOREWORD

FOREWORD This manual describes procedures for operation, handling, lubrication, maintenance, checking, and adjustment. It will help the operator or anyone realize peak performance through effective, economical and safe machine operation and maintenance. Please read this manual carefully BEFORE operating the machine. Please continue studying this manual until proper operation is completely reinforced into personal habit. This manual describes the basic techniques. Skill is performed as the operator or anyone get the correct knowledge and performance of the machine. Operation, inspection, and maintenance should be carefully carried out, and the safety must be given the first priority.

Safety precautions are indicated with A marks and technical precautions with t marks in this manual. The safety information contained in this manual is intended only to supplement safety codes, insurance requirements, local laws, rules and regulations. Some illustration pictures are different from your machine as technical improvement is continuously reflected on it. Revision to up-to-date manual’s content is performed in later editions. This operation & maintenance manual may contain attachments and optional equipment that are not available in your area. Please consult your local Komatsu distributor for those items you may require.

Materials and specifications are subject to change without notice. -l-

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FOREWORD

BREAKING IN YOUR NEW MACHINE Each machine is carefully adjusted and tested before shipment. However, a new machine requires careful operation during the first 100 hours to break in the various parts. If a machine is subjected to unreasonably hard use at the initial operation stage, the potential of performance will prematurely deteriorate and the ser- vice life will be reduced. A new machine must be operated with care, parti- cularly with regard to the following items. 0 After starting, let the engine idle for 5 minutes to allow proper engine warm-up prior to actual operation. Avoid operation with heavy loads or at high speeds.

Sudden starting or acceleration, unnecessarily abrupt braking and sharp turning should be avoided. During the initial 100 hours, the work equipment fixing pins are to be greased before each operation. Greasing is to be repeated after operation of the boom, arm and bucket is conducted several times. At the first 250 hours of operation, the machine should be maintained in the following manner: Checking and adjustment of engine valve clearance Changing fuel filter cartridge See maintenance table in the maintenance section. When replacing oil filter elements (cartridges), check their interiors for dirt and dust. If heavily collected, check for possible cause before starting operation.

Hours of operation are indicated by the service meter. l l 0 l 1) 4 * * -2-

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CONTENTS

CONTENTS OPERATION GENERAL LOCATIONS AND SPECIFICATIONS ............................................ 4 INSTRUMENTS AND CONTROLS ............................................................... 6 METHOD OF USING MODE SELECTOR SWITCHES ..................................... 46 CHECK BEFORE STARTING ....................................................................... 50 OPERATING YOUR MACHINE .................................................................... 56 INVERSION AND REPLACEMENT OF BUCKET ............................................ 78 HANDLING THE TRAPEZOIDAL BUCKET ....................................................

80 HANDLING THE CLAMSHELL BUCKET ....................................................... 80 SELECTION OF TRACK SHOES .................................................................. 82 SELECTION OF BUCKET TEETH ................................................................. 84 TRANSPORTATION .................................................................................. 85 INSTALLATION OF OPTIONAL ELECTRICAL EQUIPMENT ............................ 90 COLD WEATHER OPERATION ................................................................... 92 MAINTENANCE PERIODIC MAINTENANCE .........................................................................

101 PRECAUTIONS WHEN DISASSEMBLING MACHINE ................................. 102 BLEEDING AIR FROM CIRCUIT .............................................................. 104 PERIODICAL REPLACEMENT OF SAFETY PARTS .................................... 108 MAINTENANCE TABLE ......................................................................... 112 OIL FILLER AND LEVEL GAUGE POSITIONS ........................................... 116 EVERY 100 HOURS SERVICE ................................................................. 118 INITIAL 250 HOURS SERVICE ................................................................

122 EVERY 250 HOURS SERVICE ................................................................. 124 EVERY 500 HOURS SERVICE ................................................................. 132 EVERY 1000 HOURS SERVICE ............................................................... 136 EVERY 2000 HOURS SERVICE ............................................................... 140 EVERY 4000 HOURS SERVICE ............................................................... 145 WHEN REQUIRED ................................................................................. 146 ADJUSTMENT .........................................................................................

164 TROUBLE SHOOTING GUIDE ..................................................................... 166 SERVICE METER ...................................................................................... 176 MACHINE AND ENGINE SERIAL NUMBERS ................................................ 178 FUEL, COOLANT AND LUBRICANTS .......................................................... 180 -3-

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