Hitachi Excavator EX1200-6 Technical Manual (Operational Principle) TO18J-E-00

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Hitachi Excavator EX1200-6 Technical Manual (Operational Principle) TO18J-E-00
Size: 4.07 MB
Format: PDF
Language: English
Brand: Hitachi
Type of Machine: Excavator
Type of Manual: Technical Manual(Operational Principle)
Model: Hitachi EX1200-6 Excavator
Part Number: TO18J-E-00
Publication Date: 2008
Number of Pages: 314 Pages

Contents:
SECTION 1 GENERAL

Group 1 Specifications​

Specifications​

Working Range (Backhoe)​

Working Range (BE Backhoe)​

Working Range (Loading Shovel)​

Group 2 Component Layout​

Main Component Layout​

Pump Device​

Control Valve​

Utility Box​

Inside of Cab​

Battery Box​

Engine​

Radiator​

Group 3 Component Specifications​

Engine​

Engine Accessories​

Hydraulic Devices​

Electrical Equipment​

SECTION 2 SYSTEM

Group 1 Controller​

Outline​

CAN: Controller Area Network (Network Provided for Machine)​

MC: Main Controller​

ECM: Engine Control Module​

DLU: Data Logging Unit​

ICF: Information Controller​

Monitor Unit​

Group 2 Control System​

Outline​

Engine Control​

Pump Control​

Valve Control​

Other Controls​

Group 3 Hydraulic System​

Outline​

Pilot Circuit​

Main Circuit​

Transmission Oil Cooling Circuit​

Group 4 Electrical System​

Outline​

Main Circuit​

Electric Power Circuit (Key Switch: OFF)​

Accessory Circuit (Key Switch: ACC)​

Starting Circuit (Key Switch: START)​

Charging Circuit (Key Switch: ON)​

Surge Voltage Prevention Circuit​

Pilot Shut-Off Circuit (Key Switch: ON)​

Security Lock Circuit​

Engine Stop Circuit (Key Swith: OFF)​

Security Horn Circuit​

Work Light Circuit​

SECTION 3 COMPONENT OPERATION

Group 1 Pump Device​

Outline​

Main Pump, Fan Pump​

Regulator for Main Pump​

Regulator for Fan Pump​

Pumps 1, 2, 3 Control Solenoid Valves,Fan Pump Control Solenoid Valve​

Pilot Pump, Pump Transmission OilCirculation Pump​

Pump Delivery Pressure Sensor​

Pump Regulator Pressure (Flow RateControl Pressure) Sensor​

Group 2 Swing Device​

Outline​

Swing Reduction Gear​

Swing Motor​

Swing Parking Brake​

Valve Unit​

Group 3 Control Valve​

Outline​

Hydraulic Circuit​

Main Relief Valve​

Overload Relief Valve (With Make-Up Function)​

Boom Overload Relief Control Valve​

Flow Combiner Valve​

Anti-Drift Valve​

Regenerative Valve​

Flow Rate Control Valve​

Group 4 Pilot Valve​

Outline​

Operation​

Shockless Function (Only for Travel Pilot Valve)​

Group 5 Travel Device​

Outline​

Travel Reduction Gear​

Travel Motor​

Travel Brake Valve​

Parking Brake​

Group 6 Signal Control Valve​

Outline​

Pilot Port​

Shuttle Valve​

Shockless Valve​

Arm Flow Rate Control ValveControl Spool,Flow Combiner Valve Control Spool,Swing Parking Brake Release Spool​

Group 7 Other (Upperstructure)​

Pilot Shut-Off Solenoid Valve​

4-Spool Solenoid Valve Unit​

Pilot Relief Valve​

Shockless Valve​

Accumulator​

Oil Cooler Fan Motor​

Auto-Lubrication System​

Distribution Valve​

Group 8 Other (Undercarriage)​

Swing Bearing​

Center Joint​

Track Adjuster​

SERVICE MANUAL REVISION REQUEST FORM