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Komatsu PC750-7 User Manual

Komatsu PC750-7
41 pages
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00-1
SEBM031312
© 2017
All Rights Reserved
Printed in Japan 07-17 (01)
MACHINE MODEL SERIAL NUMBER
PC750-7 20001 and up
PC750SE-7 20001 and up
PC750LC-7 20001 and up
PC800-7 40001 and up
PC800SE-7 40001 and up
This shop 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.
PC750, 800-7 mounts the SAA6D140E-3 engine.
For details of the engine, see the 6D140-3 Series Engine Shop Manual.
(12)
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Komatsu PC750-7 Specifications

General IconGeneral
BrandKomatsu
ModelPC750-7
CategoryExcavators
LanguageEnglish

Summary

SAFETY

IMPORTANT SAFETY NOTICE

Proper service and repair are important for safe machine operation.

GENERAL PRECAUTIONS

Mistakes in operation are extremely dangerous. Read the manual before operating.

PREPARATIONS FOR WORK

Steps to take before starting repairs, such as parking the machine safely.

PRECAUTIONS DURING WORK

Safety measures to follow while performing work on the machine.

FOREWORD

STRUCTURE AND FUNCTION

Explains the structure and function of each component for troubleshooting.

TESTING AND ADJUSTING

Explains checks and adjustments before and after repairs, including troubleshooting.

DISASSEMBLY AND ASSEMBLY

Details procedures for removing, installing, and assembling components.

MAINTENANCE STANDARD

Provides judgment standards for inspection of disassembled parts.

OTHERS

Contains hydraulic and electric circuit diagrams, and attachment specifications.

NOTICE

Specifications are subject to change without notice.

HOW TO READ THE SHOP MANUAL

Guide on understanding the manual's structure, symbols, and filing methods.

REVISED EDITION MARK

Indicates edition marks on revised pages.

REVISIONS

Lists revised pages shown next to the contents page.

SYMBOLS

Explains symbols used for important safety and quality information.

HOISTING INSTRUCTIONS

WIRE ROPES

Guidelines for selecting and using wire ropes for hoisting loads.

METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER

COATING MATERIALS

STANDARD TIGHTENING TORQUE

STANDARD TIGHTENING TORQUE TABLE (WHEN USING TORQUE WRENCH)

Torque values for metric nuts and bolts when no special instruction is given.

TABLE OF TIGHTENING TORQUES FOR SPLIT FLANGE BOLTS

Tightening torque values for split flange bolts.

TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PIPING JOINTS

Tightening torques for O-ring boss piping joints.

TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PLUGS

Tightening torques for O-ring boss plugs.

TIGHTENING TORQUE FOR 102 AND 114 ENGINE SERIES

Tightening torques for bolts and nuts of Cummins Engine series.

ELECTRIC WIRE CODE

CLASSIFICATION BY THICKNESS

Details copper wire classifications by nominal number and thickness.

CLASSIFICATION BY COLOR AND CODE

Classifies wires by color and circuit function.

CONVERSION TABLE

METHOD OF USING THE CONVERSION TABLE

Guide on how to use the conversion tables for figures.

EXAMPLE

Demonstrates converting millimeters to inches using the table.

Temperature

Provides Fahrenheit-Centigrade temperature conversion figures.

UNITS

01 GENERAL

SPECIFICATION DRAWINGS

Visual representations of machine dimensions and configurations.

SPECIFICATIONS

Key technical data and performance metrics for the machine models.

WEIGHT TABLE

Lists the weight of various machine components and configurations.

FUEL, COOLANT AND LUBRICANTS

Recommendations for fluids and lubricants for machine operation and maintenance.

BACKHOE SPECIFICATION DIMENSIONS

Detailed dimensions for the backhoe configuration of the machine.

WORKING RANGES

Diagrams and measurements of the machine's operational reach and depth.

DIMENSIONS

General dimensions of the machine's backhoe configuration.

LOADING SHOVEL SPECIFICATION DIMENSIONS

Detailed dimensions for the loading shovel configuration of the machine.

DIMENSIONS

General dimensions of the machine's loading shovel configuration.

BACKHOE SPECIFICATION

Comprehensive technical specifications for the backhoe configuration.

PC750LC-7 SPECIFICATIONS

Specific technical data for the PC750LC-7 model.

PC800-7 AND PC800SE-7 SPECIFICATIONS

Specific technical data for the PC800-7 and PC800SE-7 models.

LOADING SHOVEL SPECIFICATION

Comprehensive technical specifications for the loading shovel configuration.

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