Komatsu Avance Loader WA900L-3 Shop Manual
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Komatsu Avance Loader WA900L-3 Shop Manual

Komatsu Avance Loader WA900L-3 Shop Manual

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MACHINE MODEL
WA900L-3
•
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.
•
WA900L-3 mount the SAA12V140ZE-2 engine.
For details of the engine, see the Engine Shop Manual.
SERIAL NUMBER
52001 and up
(4)

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Summary of Contents for Komatsu Avance Loader WA900L-3

  • Page 1 52001 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 AND FUNCTION ..............10-1 20 TESTING AND ADJUSTING ................ 20-1 30 DISASSEMBLY AND ASSEMBLY ............30-1 40 MAINTENANCE STANDARD ..............40-1 90 OTHERS ..........................90-1 00-2 WA900L-3...

  • Page 3: 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 4: 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 5 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 6 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 7: Hoisting Instructions

    FOREWORD HOISTING INSTRUCTIONS HOISTING INSTRUCTIONS HOISTING Slinging near the edge of the hook may cause k Heavy parts (25 kg or more) must be lifted the rope to slip off the hook during hoisting, and a serious accident can result. Hooks have max- with a hoist, etc.
  • Page 8 FOREWORD METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER k Before 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 9 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 10: 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, features •...
  • Page 11 FOREWORD COATING MATERIALS Category Komatsu code Part No. Q’ty Container Main applications, features • Used as lubricant for sliding portion (to LM-G 09940-00051 60 g prevent from squeaking). Molybdenum • Used to prevent seizure or scuffling of the disulphide thread when press fitting or shrink fitting.

  • Page 12: 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. Tightening torque Thread diameter Width across...
  • Page 13 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 59 –...
  • Page 14 FOREWORD STANDARD TIGHTENING TORQUE TIGHTENING TORQUE FOR 102 AND 114 ENGINE SERIES 1) BOLT AND NUTS Use these torques for bolts and nuts (unit: mm) of Cummins Engine. Thread diameter Tightening torque 10 0 2 1.02 0 0.20 24 0 4 2.45 0 0.41 43 0 6 4.38 0 0.61...
  • Page 15 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 16 01 GENERAL GENERAL ASSEMBLY DRAWING ......................01- 2 SPECIFICATIONS ............................01- 3 WEIGHT TABLE............................01- 6 LIST OF LUBRICANT AND WATER ......................01- 8 01-1 WA900L-3...

  • Page 17: General Assembly Drawing

    GENERAL GENERAL ASSEMBLY DRAWING GENERAL ASSEMBLY DRAWING 01-2 WA900L-3...

  • Page 18: Specifications

    GENERAL SPECIFICATIONS SPECIFICATIONS Machine model WA900L-3 Serial No. 52001 and up Operating weight 102,880 Distribution (front) 55,760 Distribution (rear) 47,120 Bucket capacity (piled) 13.0 Rated load 23,400 FORWARD 1st km/h FORWARD 2nd km/h 12.3 FORWARD 3rd km/h 28.0 Travel speed REVERSE 1st km/h REVERSE 2nd...
  • Page 19 GENERAL SPECIFICATIONS Machine model WA900L-3 Serial No. 52001 and up Model SAA12V140ZE-2 4-cycle, water-cooled, V type, Type 12-cylinder direct injection, with 2-turbocharger, air-cooled after-cooler No. of cylinders - bore x stroke 12 – 140 x 165 l {cc} Piston displacement 30.48 {30,480} Flywheel horsepower kW/rpm {HP/rpm}...
  • Page 20 GENERAL SPECIFICATIONS Machine model WA900L-3 Serial No. 52001 and up Type Articulated type Structure Fully hydraulically power steering l/min Torque converter, transmission pump (Gear type: SAR(4)112+SAR(3)100) l/min Steering pump (Fixed capacity piston pump: HPF76+71) l/min Switch pump (Fixed capacity piston pump: HPV95+95) l/min PPC pump (Gear type: SAR(1)032)
  • Page 21 GENERAL WEIGHT TABLE WEIGHT TABLE k This weight table is a guide for use when transporting or handling components. Unit: kg Machine model WA900L-3 Serial No. 52001 and up Engine 3,050 Radiator 1,200 Torque converter Transmission 2,300 Damper Upper drive shaft Center drive shaft Front drive shaft Rear drive shaft...
  • Page 22 GENERAL WEIGHT TABLE Unit: kg Machine model WA900L-3 Serial No. 52001 and up Rear frame 9,398 Bucket link (including bushing) Bellcrank (including bushing) 1,850 Boom (including bushing) 8,750 Bucket (with teeth) 12,330 Counterweight + Weight 2,900 + 2,600 Fuel tank Battery (each) Air conditioner unit Operator’s seat...
  • Page 23 GENERAL LIST OF LUBRICANT AND WATER LIST OF LUBRICANT AND WATER Note 1: For axle oil, use only recommended oil as follows. SHELL: DONAX TD MOBILE: MOBILFLUID 424 ESSO: TORQUE FLUID 56 It is possible to substitute engine oil CLASS-CD SAE30 for axle oil. If noise comes from the brake, it is no problem of durability.
  • Page 24 The use of a quality engine lubricating oil combined with appropriate oil and filter change intervals are criti- cal factors in maintaining engine performance and durability. Komatsu Engine Oil or multi-viscosity engine oil meeting American Petroleum Institute (API) performance classification CF-4, CG-4, CF-4/SG or CG-4/SH or MIL-L-2104D or E is recommended.
  • Page 25 Classification CD, CE, CD/SF or CE/SF oils may be used in areas where CF-4, CG-4, CF-4/SG or CG-4/SH oil is not yet available. FINAL DRIVE OIL SPECIFICATIONS Komatsu Gear Lubricant or an equivalent multi-purpose gear lubricant meeting API GL-5 or MIL-L-2105C is rec- ommended. DRIVE AXLE OIL SPECIFICATIONS...
  • Page 26 GENERAL LIST OF LUBRICANT AND WATER Optionally, the equivalent grades of recognized Federal Government specifications may be used; the latest revi- sions of VV-F-800a. COOLANT SPECIFICATIONS GENERAL Selection and maintenance of the engine coolant is important to long engine life. The following information pro- vides recommendations for selecting the engine coolant and maintaining the supplemental coolant additives (SCA).
  • Page 27 Download the full PDF manual instantly. Our customer service e-mail: aservicemanualpdf@yahoo.com...

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