All-Inclusive Factory Service Technical manual for Hitachi Crawler Excavators Models Zaxis 300LC-7 and Zaxis 300LCN-7.

This manuals will assist you in diagnosing, repairing, troubleshooting, and operating for your crawler excavator.
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Covered Models:
   Zaxis 300LC-7
   Zaxis 300LCN-7

The manual comprises 6 documents, including the Workshop Manual, Troubleshooting Manual, Operational Principle Manual, Operators Manual, and two Wiring Diagrams

1. Workshop Manual (WDD650-EN-00)
Format: PDF, 770 pages
Language: English
Table of Contents:
   GENERAL
      Precautions for Disassembling and Assembling
      Tightening
      Painting
      Bleeding Air
      Preparation
   MAINTENANCE STANDARD
      Upperstructure
      Undercarriage
      Front Attachment
   UPPERSTRUCTURE
      Cab
      Counterweight
      Main Frame
      Engine
      Radiator Assembly
   UPPERSTRUCTURE
      Hydraulic Oil Tank
      Fuel Tank
      Pump Device
      Control Valve
      Swing Device
      Pilot Valve

2. Troubleshooting Manual (TTDD650-EN-00)
Format: PDF, 706 pages
Language: English
Table of Contents:
   OPERATIONAL PERFORMANCE TEST
      Introduction
      Standard
      Engine Test
      Machine Performance Test
      Component Test
      Adjustment
   TROUBLESHOOTING
      Diagnosing Procedure
      Monitor
      e-Service
      Component Layout
      Troubleshooting A
      Troubleshooting B
      Air Conditioner
   SERVICE MANUAL REVISION REQUEST FORM
   The Attached Diagram List

3. Operational Principle Manual (TODD650-EN-00)
Format: PDF, 481 pages
Language: English
Table of Contents:
   GENERAL
      Specifications
      Component Layout
      Component Specifications
   SYSTEM
      Controller
      Control System
      Engine System
      Hydraulic System
      Electrical System
   COMPONENT OPERATION
      Pump Device
      Swing Device
      Control Valve
      Pilot Valve
      Travel Device
      Signal Control Valve
      Others (Upperstructure)
      Others (Undercarriage)

4. Operators Manual (ENMDFY-EN1-1)
Format: PDF, 125 pages
Language: English
Table of Contents:
   BEFORE OPERATION
      Name of Components
      Getting ON and OFF the Machine
      About Aftertreatment Device
   OPERATOR'S STATION
      Layout of Equipment in Operator's Station (Illustration Contents)
      Multi Function Monitor
      Auto Air Conditioner
      Audio Operation
      Switch Panel (Illustration Content)
      Switch Panel (for Optional Equipments)
      Control Lever
      Facilities in Operator's Station
      Aerial Angle
      Installation and Adjustment of Mirrors
      Emergency Exit
      Battery Disconnect Switch
   BREAK-IN
      Observe Engine Operation Closely
      Every 8 Hours or Daily
      After the First 50 Hours
      After the First 100 Hours
   OPERATING THE ENGINE
      Inspect Machine Daily Before Starting
      Before Starting the Engine
      Starting the Engine
      Check Instruments After Starting
      Using the Booster Battery
      Stopping the Engine
      Engine Auto-Stop at Extremely Low Temperatures
   DRIVING THE MACHINE
      Travel Levers and Pedals
      Travel Mode Switch
      Traveling on Soft Ground
      Raising One Track Using the Boom and Arm
      Retrieval
      Operating in Water or Mud
      Parking the Machine on Slopes
      Parking
      Prohibition of Sudden Control Operations when Traveling at High Speed
      Prohibition of Traveling for Long Periods
   OPERATING THE MACHINE
      Control Lever (ISO Pattern)
      Pilot Shut-Off Lever
      Warming-Up Operation
      Engine Speed Control
      Auto-Idle
      Auto Shut-Down
      Aftertreatment Device Manual Regeneration
      Attachments
      Power Boost Switch
      Power Mode
      Attachment Settings
      Operating Backhoe
      Shovel
      Grading Operation
      Do Not Strike the Ground with Bucket Teeth
      Avoid Hammer Work
      Avoid Abusive Operation
      Never Move an Object Sideways with the Bucket
      Retracting the Arm and Bucket
      Never use Wide Track Shoes on Rough Ground
      Shackle Hole Usage
      Pilot Accumulator Functions
      How to Lower Boom in Case of Emergency and When Engine Stops (Without hose-rupture safety valve)
      How to Lower Front Equipment and Attachment in Case of Emergency and When Engine Stops (With hose-rupture safety valve)
      Precautions for After Operations
   TRANSPORTING
      Transporting by Road
      Loading/Unloading on a Trailer
      Fastening the Machine for Transport
      Unloading
      Lifting the Machine
   MAINTENANCE
      Correct Maintenance and Inspection Procedures
      Layout
      Inspection and Maintenance Intervals
      Preparation for Inspection and Maintenance
      Hood and Access Covers
      Maintenance Guide
      Periodic Replacement of Parts
      Kind of Oils
      List of Consumable Parts
      A. Greasing
      Electric Grease Gun (Only ZX330-7 Class)
      Using the Electric Grease Gun
      B. Engine
      C. Transmission
      D. Hydraulic System
      E. Fuel System
      F. Air Cleaner
      G. Cooling System
      H. Electrical System
      I. Miscellaneous
      J. Aftertreatment Device
      K. Urea SCR System
      L. Aerial Angle
   HYDRAULIC CIRCUIT
      Hydraulic Circuit
   MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS
   STORAGE
      Storing the Machine
   TROUBLESHOOTING
   SPECIFICATIONS
      Specifications ZX250LC-7, 250LCN-7
      Working Ranges ZX250LC-7, 250LCN-7
      Shoe Types and Applications ZX250LC-7
      Shoe Types and Applications ZX250LCN-7
      Bucket Types and Applications ZX250LC-7, 250LCN-7
      Specifications ZX300LC-7, 300LCN-7
      Working Ranges ZX300LC-7, 300LCN-7
      Shoe Types and Applications ZX300LC-7
      Shoe Types and Applications ZX300LCN-7
      Bucket Types and Applications ZX300LC-7, 300LCN-7
      Specifications ZX350LC-7, 350LCN-7
      Working Ranges ZX350LC-7, 350LCN-7
      Shoe Types and Applications ZX350LC-7
      Shoe Types and Applications ZX350LCN-7
      Bucket Types and Applications ZX350LC-7, 350LCN-7
      The Value of the Carbon Dioxide (CO2) emissions
   OPTIONAL ATTACHMENTS AND DEVICES
      Link with Hook
      Bucket Teeth (Transverse-Type-Pin-Used Type)
      Replacement Procedure
      2-Piece Boom
      Attachment Pedal
      Hydraulic Breaker, Crusher, Quick Hitch
   INDEX
   Blank Page

5. Wiring Diagram (TTDD650-EN-00_circuit)
Format: PDF, 17 pages
Language: English
Table of Contents:
   ELECTRICAL CIRCUIT DIAGRAM
   CONNECTORS
   CAB HARNESS
   MAN HARNESS
   PUMP HARNESS
   NOx HARNESS
   MONITOR HARNESS
   CONSOLE HARNESS
   CONTROL VALVE HARNESS
   WIPER HARNESS
   WIPER MOTOR HARNESS
   PILOT SHUT-OFF SOLENOID VALVE HARNESS
   ENGINE STOP SWITCH HARNESS
   CIGAR LIGHTER SUB HARNESS
   HYDRAULIC CIRCUIT DIAGRAM (MONO BOOM)
   HYDRAULIC CIRCUIT DIAGRAM (OPTION) (2-PIECE BOOM, AFL 1ch)
   HYDRAULIC CIRCUIT DIAGRAM （OPTION) (2-PIECE BOOM, AFL 2ch)

6. Wiring Diagram (TTDD650-EN-00CIR)
Format: PDF, 13 pages
Language: English
Table of Contents:
   ELECTRICAL CIRCUIT DIAGRAM (OPTION)
   CONSOLE HARNESS (OPTION)
   CAB REAR HARNESS
   REAR HEADLIGHT HARNESS
   REAR HEADLIGHT SWITCH HARNESS
   REAR HEADLIGHT SUB HARNESS
   HEADLIGHT HARNESS
   AFL HARNESS (REAR SIDE) (1ch and 2ch)
   AFL MAIN HARNESS (1ch)
   AFL MAIN HARNESS (2ch)
   CAMERA LIGHT HARNESS
   BOOM LIGHT (RIGHT) HARNESS
   AUXILIARY FLOW COMBINER HARNESS