Komatsu GD705A-4 Shop Manual
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Komatsu GD705A-4 Shop Manual

Komatsu GD705A-4 Shop Manual

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MACHINE MODEL
GD705A-4
•
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.
•
GD705A-4 mounts the S6D125-1 engine.
For details of the engine, see the 6D125 Series Engine Shop Manual.
© 2007
All Rights Reserved
Printed in Japan 06-07 (01)
SERIAL NUMBER
23001 and up
SEBM022104
00-1
(4)

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Summary of Contents for Komatsu GD705A-4

  • Page 1 23001 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.
  • Page 2 GENERAL CONTENTS No. of page 01 GENERAL ..........................01-1 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD ..........10-1 20 TESTING AND ADJUSTING ................ 20-1 30 DISASSEMBLY AND ASSEMBLY ............. 30-1 90 OTHERS ..........................90-1 00-2 GD705A-4 Find manuals at https://best-manuals.com...
  • Page 3 01-6 10-35 10-77 10-115 10-136 01-7 10-37 10-78 10-116 10-137 10-38 10-79 10-117 10-138 10-1 10-39 10-80 10-118 10-139 10-2 10-40 10-81 10-119 10-140 10-3 10-42 10-82 10-120 10-141 10-4 10-43 10-83 10-121 10-142 00-2-1 GD705A-4 Find manuals at https://best-manuals.com...
  • Page 4 30-57 30-106 90-5 20-117 30-9 30-58 30-107 90-7 20-118 30-10 30-59 30-108 90-9 20-119 30-12 30-60 30-109 90-11 20-120 30-13 30-61 30-110 20-121 30-14 30-62 30-111 20-122 30-15 30-63 30-112 20-123 30-16 30-64 30-113 00-2-2 GD705A-4 Find manuals at https://best-manuals.com...

  • Page 5: Important Safety Notice

    Proper service and repair is extremely important for safe machine operation. The service and repair techniques recommended by Komatsu and described in this manual are both effective and safe. Some of these techniques require the use of tools specially designed by Komatsu for the specific purpose.

  • Page 6: Safety Notice

    SAFETY SAFETY NOTICE PRECAUTIONS DURING WORK 19.Be sure to assemble all parts again in their origi- nal places. 11. When removing the oil filler cap, drain plug or Replace any damaged parts with new parts. hydraulic pressure measuring plugs, loosen •...
  • Page 7 FOREWORD GENERAL FOREWORD GENERAL This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judge- ments.

  • Page 8: How To Read The Shop Manual

    DISTRIBUTION AND UPDATING Any additions, amendments or other changes will be Symbol Item Remarks sent to KOMATSU distributors. Get the most up-to- date information before you start any work. Special safety precautions ¤ Safety are necessary when per- forming the work.

  • Page 9: Hoisting Instructions

    FOREWORD HOISTING INSTRUCTIONS HOISTING INSTRUCTIONS HOISTING Slinging near the edge of the hook may cause ¤ the rope to slip off the hook during hoisting, and H eavy parts (25 kg or more) must be lifted a serious accident can result. Hooks have max- with a hoist, etc.
  • Page 10 FOREWORD METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER ¤ B efore carrying out the following work, release Type 1 the residual pressure from the hydraulic tank. For details, see TESTING AND ADJUSTING, Releasing residual pressure from hydraulic tank.
  • Page 11 FOREWORD METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER Type 2 Type 3 1) Hold the mouthpiece of the tightening portion 1) Hold the mouthpiece of the tightening portion and push body (2) in straight until sliding pre- and push body (2) in straight until sliding pre- vention ring (1) contacts contact surface a of vention ring (1) contacts contact surface a of the hexagonal portion at the male end.

  • Page 12: Coating Materials

    # The recommended coating materials such as adhesives, gasket sealants and greases used for disassembly and assembly are listed below. # For coating materials not listed below, use the equivalent of products shown in this list. Category Komatsu code Part No. Q'ty Container Main applications, featuresr •...
  • Page 13 FOREWORD COATING MATERIALS Category Komatsu code Part No. Q'ty Container Main applications, featuresr • Ftures: Silicon based, quick hard- ening type LG-7 790-129-9070 Tube • Used as sealant for flywheel housing, intake manifold, oil an, Adhesives thermostat housing, etc. •...

  • Page 14: Standard Tightening Torque

    FOREWORD STANDARD TIGHTENING TORQUE STANDARD TIGHTENING TORQUE STANDARD TIGHTENING TORQUE TABLE (WHEN USING TORQUE WRENCH) # In the case of metric nuts and bolts for which there is no special instruction, tighten to the torque given in the table below. Thread diameter Width across of bolt...
  • Page 15 FOREWORD STANDARD TIGHTENING TORQUE TABLE OF TIGHTENING TORQUES FOR SPLIT FLANGE BOLTS # In the case of split flange bolts for which there is no special instruction, tighten to the torque given in the table below. Thread diameter Width across flat Tightening torque 65.7 11.5...
  • Page 16 FOREWORD STANDARD TIGHTENING TORQUE TIGHTENING TORQUE FOR 102 ENGINE SERIES 1) BOLT AND NUTS Use these torques for bolts and nuts (unit: mm) of Cummins Engine. Thread diameter Tightening torque 1.02 0.20 2.45 0.41 4.38 0.61 7.85 1.22 2) EYE JOINTS Use these torques for eye joints (unit: mm) of Cummins Engine.
  • Page 17 FOREWORD ELECTRIC WIRE CODE ELECTRIC WIRE CODE In the wiring diagrams, various colors and symbols are employed to indicate the thickness of wires. This wire code table will help you understand WIRING DIAGRAMS. Example: 5WB indicates a cable having a nominal number 5 and white coating with black stripe. CLASSIFICATION BY THICKNESS Copper wire Current...

  • Page 18: Conversion Table

    FOREWORD CONVERSION TABLE CONVERSION TABLE METHOD OF USING THE CONVERSION TABLE The Conversion Table in this section is provided to enable simple conversion of figures. For details of the method of using the Conversion Table, see the example given below. EXAMPLE •...
  • Page 19 FOREWORD CONVERSION TABLE Millimeters to Inches 1 mm = 0.03937 in 0.039 0.079 0.118 0.157 0.197 0.236 0.276 0.315 0.354 0.394 0.433 0.472 0.512 0.551 0.591 0.630 0.669 0.709 0.748 0.787 0.827 0.866 0.906 0.945 0.984 1.024 1.063 1.102 1.142 1.181 1.220 1.260...
  • Page 20 FOREWORD CONVERSION TABLE Liter to U.S. Gallon 1 l = 0.2642 U.S. Gal 0.264 0.528 0.793 1.057 1.321 1.585 1.849 2.113 2.378 2.642 2.906 3.170 3.434 3.698 3.963 4.227 4.491 4.755 5.019 5.283 5.548 5.812 6.076 6.340 6.604 6.869 7.133 7.397 7.661 7.925...
  • Page 21 FOREWORD CONVERSION TABLE kgm to ft. lb 1 kgm = 7.233 ft. lb 14.5 21.7 28.9 36.2 43.4 50.6 57.9 65.1 72.3 79.6 86.8 94.0 101.3 108.5 115.7 123.0 130.2 137.4 144.7 151.9 159.1 166.4 173.6 180.8 188.1 195.3 202.5 209.8 217.0 224.2...
  • Page 22 FOREWORD CONVERSION TABLE kg/cm to lb/in 1kg/cm = 14.2233 lb/in 14.2 28.4 42.7 56.9 71.1 85.3 99.6 113.8 128.0 142.2 156.5 170.7 184.9 199.1 213.4 227.6 241.8 256.0 270.2 384.0 398.3 412.5 284.5 298.7 312.9 327.1 341.4 355.6 369.8 426.7 440.9 455.1 469.4...
  • Page 23 FOREWORD CONVERSION TABLE Temperature Fahrenheit-Centigrade Conversion ; a simple way to convert a Fahrenheit temperature reading into a Cen- tigrade temperature reading or vice versa is to enter the accompanying table in the center or boldface col- umn of figures. These figures refer to the temperature in either Fahrenheit or Centigrade degrees.
  • Page 24 FOREWORD UNITS UNITS In this manual, the measuring units are indicated with Internatinal System of units (SI). As for reference, conventionally used Gravitational System of units are indicated in parentheses { Example: N {kg} Nm {kgm} MPa {kg/cm kPa {mmH kPa {mmHg} kW/rpm {HP/rpm} g/kWh {g/HPh}...
  • Page 25 Weight table ......01-5 List of lubricant and water ....01-6 01-1 GD705A-4...

  • Page 26: General Assembly Drawing

    GENERAL GENERAL ASSEMBLY DRAWING GENERAL ASSEMBLY DRAWING Unit: mm Dimensions 9,270 3,365 2,800 01-2 GD705A-4...

  • Page 27: Specifications

    GENERAL SPECIFICATIONS SPECIFICATIONS Model GD705A-4 Serial Number 23,001 and up Operating weight 17,620 On front axle (27.7%) 4,885 On rear axle (72.3%) 12,735 Overall length 9,270 Overall width 2,800 Overall height 3,365 Wheel base 6,450 Rear wheel base 1,730 Tread (Front)
  • Page 28 2 - 2,134 x 203 x 16 Turning angle Cutting angle [Standard] [Maximum] [Minimum] Engine model Komatsu S6D125-1 Diesel Engine 4 cycle, water cooled, overhead valve, direct type injection type with turbocharger Cylinder number - bore x stroke 6 - 125 x 150 O {cc} Piston displacement 11.045 {11,045}...
  • Page 30 GENERAL LIST OF LUBRICANT AND WATER LIST OF LUBRICANT AND WATER ∗ ASTM D975 No. 1 01-6 GD705A-4...
  • Page 31 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

This manual is also suitable for:

23001

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