All-Inclusive Factory Service Technical manual for Hitachi Hydraulic Excavators Models EX1900-6.

This manuals will assist you in diagnosing, repairing, troubleshooting, operating, and checking for your hydraulic excavator.
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Covered Models:
   EX1900-6

The manual comprises 19 documents, including three Workshop Manuals, the Troubleshooting Manual, Operational Principle Manual, five Operators Manuals, Wiring Diagram, and 8 Check Sheets

1. Workshop Manual: Swing Transmission (WSDSDE18C)
Format: PDF, 160 pages
Language: English

2. Workshop Manual: Front Cylinder (WSDXFCE18C1)
Format: PDF, 178 pages
Language: English

3. Workshop Manual (W18KE00)
Format: PDF, 555 pages
Language: English
Table of Contents:
   GENERAL
      Precautions for Disassembling and Assembling
      Tightening
      Painting
      Bleeding Air from Hydraulic Oil Tank
   UPPERSTRUCTURE
      Cab
      Counterweight
      Pump Device
      Structure of 4-Spool Pump
      Swing Device
      DQR Valve
      Shuttle Valve
      EHC Valve
      Oil Cooler Fan Motor
      Compressor Drive Motor
      Air Conditioner
      Grease Pump
   UNDERCARRIAGE
      Swing Bearing
      Travel Device
      Travel Brake Valve
      Center Joint
      Adjuster Cylinder
      Front Idler
      Upper and Lower Rollers
      Track
      Accumulator
      Welding Repair Procedure
   FRONT ATTACHMENT
      Front Attachment
      Cylinder
      Bushing and Point

4. Troubleshooting Manual (TT18KE00)
Format: PDF, 276 pages
Language: English
Table of Contents:
   OPERATIONAL PERFORMANCE TEST
      Introduction
      Standard
      Engine Test
      Excavator Test
      Component Test
   TROUBLESHOOTING
      General
      Cross Reference Table
      Component Layout
      Troubleshooting A
      Troubleshooting B
      Troubleshooting C
      Electrical System Inspection

5. Operational Principle Manual (TO18KE00)
Format: PDF, 268 pages
Language: English
Table of Contents:
   GENERAL
      Specifications
      Component Layout
      Component Specifications
   SYSTEM
      Controller
      Control System
      ELU System
      Hydraulic System
      Electrical System
   COMPONENT OPERATION
      Pump Device
      Swing Device
      Control Valve
      Control Equipment
      DQR Valve
      Travel Device
      Others (Upperstructure)
      Others (Undercarriage)

6. Operators Manual: Quick Visual Inspection (Loader Front) (KO43501)
Format: PDF, 248 pages
Language: English
Table of Contents:
   VISUAL INSPECTION EX1900-6
      COMPLETING AND SUBMITTING THE INSPECTION SHEETS
      SAFETY
      Inspection procedure
      Noting the cracks
      0 hour to 250 hours
      251 hours to 500 hours
      501 hours to 750 hours
      751 hours to 1000 hours
      1001 hours to 1250 hours
      1251 hours to 1500 hours
      1501 hours to 1750 hours
      1751 hours to 2000 hours
      2001 hours to 2250 hours
      2251 hours to 2500 hours
      2501 hours to 2750 hours
      2751 hours to 3000 hours
      3001 hours to 3250 hours
      3251 hours to 3500 hours
      3501 hours to 3750 hours
      3751 hours to 4000 hours
      4001 hours to 4250 hours
      4251 hours to 4500 hours
      4501 hours to 4750 hours
      4751 hours to 5000 hours
      5001 hours to 5250 hours
      5251 hours to 5500 hours
      5501 hours to 5750 hours
      5751 hours to 6000 hours
      6001 hours to 6250 hours
      6251 hours to 6500 hours
      6501 hours to 6750 hours
      6751 hours to 7000 hours
      7001 hours to 7250 hours
      7251 hours to 7500 hours
      7501 hours to 7750 hours
      7751 hours to 8000 hours
      8001 hours to 8250 hours
      8251 hours to 8500 hours
      8501 hours to 8750 hours
      8751 hours to 9000 hours
      9001 hours to 9250 hours
      9251 hours to 9500 hours
      9501 hours to 9750 hours
      9751 hours to 10000 hours
   BACK COVER

7. Operators Manual: Quick Visual Inspection (Backhoe Front) (KO40501)
Format: PDF, 248 pages
Language: English
Table of Contents:
   VISUAL INSPECTION EX1900-6 BACKHOE FRONT
      COMPLETING AND SUBMITTING THE INSPECTION SHEETS
      SAFETY
      Inspection procedure
      Noting the cracks
      0 hour to 250 hours
      251 hours to 500 hours
      501 hours to 750 hours
      751 hours to 1000 hours
      1001 hours to 1250 hours
      1251 hours to 1500 hours
      1501 hours to 1750 hours
      1751 hours to 2000 hours
      2001 hours to 2250 hours
      2251 hours to 2500 hours
      2501 hours to 2750 hours
      2751 hours to 3000 hours
      3001 hours to 3250 hours
      3251 hours to 3500 hours
      3501 hours to 3750 hours
      3751 hours to 4000 hours
      4001 hours to 4250 hours
      4251 hours to 4500 hours
      4501 hours to 4750 hours
      4751 hours to 5000 hours
      5001 hours to 5250 hours
      5251 hours to 5500 hours
      5501 hours to 5750 hours
      5751 hours to 6000 hours
      6001 hours to 6250 hours
      6251 hours to 6500 hours
      6501 hours to 6750 hours
      6751 hours to 7000 hours
      7001 hours to 7250 hours
      7251 hours to 7500 hours
      7501 hours to 7750 hours
      7751 hours to 8000 hours
      8001 hours to 8250 hours
      8251 hours to 8500 hours
      8501 hours to 8750 hours
      8751 hours to 9000 hours
      9001 hours to 9250 hours
      9251 hours to 9500 hours
      9501 hours to 9750 hours
      9751 hours to 10000 hours
   BACK COVER

8. Operators Manual (EM18K15)
Format: PDF, 318 pages
Language: English
Table of Contents:
   INTRODUCTION
   INDEX
   MACHINE NUMBERS
   SAFETY
   SAFETY SIGNS
   COMPONENTS NAME
   HANDLING LADDER/EMERGENCY ESCAPE DEVICE
   OPERATORS STATION
   BREAK-IN
   OPERATING ENGINE
   DRIVING MACHINE
   OPERATING MACHINE
   MAINTENANCE
   MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS
   STORAGE
   TROUBLESHOOTING
   SPECIFICATIONS
   INDEX

9. Operators Manual (EM18K18)
Format: PDF, 332 pages
Language: English
Table of Contents:
   INTRODUCTION
   INDEX
   MACHINE NUMBERS
   SAFETY
   VISIBILITY MAP
   SAFETY SIGNS
   COMPONENTS NAME
   HANDLING LADDER/EMERGENCY ESCAPE DEVICE
   OPERATORS STATION
   BREAK-IN
   OPERATING ENGINE
   DRIVING MACHINE
   OPERATING MACHINE
   TRANSPORTING
   MAINTENANCE
   MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS
   STORAGE
   TROUBLESHOOTING
   SPECIFICATIONS
   INDEX

10. Operators Manual (EM18MOP11)
Format: PDF, 17 pages
Language: English
Table of Contents:
   MONITOR
   CAMERA
   INDEX

11. Wiring Diagram (TT1KE00CIR)
Format: PDF, 10 pages
Language: English
Table of Contents:
   EX1900-6, EX2500-6, EX3600-6 ELECTRICAL CIRCUIT DIAGRAM (CAB)
   EX1900-6(Up to serial No.1068), EX2500-6(Up to serial No.1087), EX3600-6(Up to serial No.1090) ELECTRICAL CIRCUIT DIAGRAM (ELECTRICAL EQUIPMENT BOX 1/2)
   EX1900-6(Serial No.1069 and up), EX2500-6(Serial No.1088 and up), EX3600-6(Serial No.1091 and up) ELECTRICAL CIRCUIT DIAGRAM (ELECTRICAL EQUIPMENT BOX 1/2)
   EX1900-6, EX2500-6, EX3600-6 ELECTRICAL CIRCUIT DIAGRAM (ELECTRICAL EQUIPMENT BOX 2/2)
   EX1900-6 ELECTRICAL CIRCUIT DIAGRAM 1/3
   EX1900-6 ELECTRICAL CIRCUIT DIAGRAM 2/3
   EX1900-6 ELECTRICAL CIRCUIT DIAGRAM 3/3
   EX1900-6, EX2500-6, EX3600-6, EX5500-6 ELECTRIC CONNECTORS
   EX1900-6 HYDRAULIC CIRCUIT DIAGRAM (LOADING SHOVEL)
   EX1900-6 HYDRAULIC CIRCUIT DIAGRAM (BACKHOE)

12. Check Sheets: UT Inspection (Loader Front) (KO55100)
Format: PDF, 47 pages
Language: English
Table of Contents:
   Cover
      INTRODUCTION
      DISTRIBUTION OF THE INSPECTION SHEET
      DEFINITION OF THE DEFECT LENGTH IN ULTRA-SONICTESTING
      INSPECTION PROCEDURE
      EVALUATION OF DEFECT HEIGHT (H) BY DISTANCECORRECTION TECHNIQUE AT INTERNAL BULKHEAD
      ULTRA-SONIC EXAMINATIONREPORT FOR THE STRUCTURE
      Track Frame
      Loader Boom
      Loader Arm

13. Check Sheets: Visual Inspection (Backhoe Front) (KO359B01)
Format: PDF, 35 pages
Language: English
Table of Contents:
   INTRODUCTION
   COMPLETING AND SUBMITTING THE INSPECTION SHEETS
   INSPECTION PROCEDURE
   STRUCTURE VISUAL INSPECTION CHECK REPORT
   Track Frame
   Side Frame
   Main Frame
   Backhoe Boom 8.3m
   Seat: Screw (Backhoe Boom 8.3m)
   Backhoe Arm 3.6m

14. Check Sheets: Visual Inspection (Loader Front) (KO359L01)
Format: PDF, 38 pages
Language: English

15. Check Sheets: Weekly Visual Inspection (Backhoe Front) (KO371B00)
Format: PDF, 16 pages
Language: English
Table of Contents:
   CHECK SHEETS FOR EX1900-6 WEEKLY VISUAL INSPECTION
      Main Frame
      Backhoe Boom 8.3m
      Backhoe Arm 3.6m

16. Check Sheets: Weekly Visual Inspection (Loader Front) (KO371L00)
Format: PDF, 18 pages
Language: English

17. Check Sheets: Monthly Maintenance (KO33000)
Format: PDF, 55 pages
Language: English
Table of Contents:
   1 50 HOURS to 1250 HOURS
   2 1500 HOURS to 2500 HOURS
   3 2750 HOURS to 3750 HOUR
   4 4000 HOURS to 5000 HOURS
   5 5250 HOURS to 6250 HOURS
   6 6500 HOURS to 7500 HOURS
   7 7750 HOURS to 8750 HOURS
   8 9000 HOURS to 10000 HOURS
   9 10250 HOURS to 11250 HOURS
   10 11500 HOURS to 12500 HOURS
   11 12750 HOURS to 13750 HOURS
   12 14000 HOURS to 15000 HOURS
   13 15250 HOURS to 16250 HOURS
   14 16500 HOURS to 17500 HOURS
   15 17750 HOURS to 18750 HOURS
   16 19000 HOURS to 20000 HOURS
   EX1900-6 CHECK POINTS: 1
   EX1900-6 CHECK POINTS: 2
   FOR EX1900-6 PERIODIC REPLACEMENT OF RUBBER HOSES
   HOW TO USE THE EX1900-6 SHEETS

18. Check Sheets: UT Inspection (Backhoe Front) (KO55200)
Format: PDF, 49 pages
Language: English
Table of Contents:
   Cover
      INTRODUCTION
      DISTRIBUTION OF THE INSPECTION SHEET
      DEFINITION OF THE DEFECT LENGTH IN ULTRA-SONICTESTING
      INSPECTION PROCEDURE
      EVALUATION OF DEFECT HEIGHT (H) BY DISTANCECORRECTION TECHNIQUE AT INTERNAL BULKHEAD
      ULTRA-SONIC EXAMINATIONREPORT FOR THE STRUCTURE
      Track Frame
      Backhoe Boom 8.3 m
      Backhoe Arm 3.6m

19. Check Sheets: Daily and Weekly Maintenance (KO32900)
Format: PDF, 4 pages
Language: English
Table of Contents:
   COVER
      DAILY AND WEEKLY CHECK SHEETS FOR THE EX1900-6
      EX1900-6 CHECK POINTS
   BACK COVER