Factory Service Repair Manual For Hitachi Hitachi EX33u Excavators. Tons of illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-ups.
Format: PDF
Language: English
Pages: 533
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
Hitachi EX33u
Contents
Workshop Manual
- -GENERAL INFORMATION
–PRECAUTIONS FOR DISASSEMBLING AND ASSEMBLING
Precautions for Disassembling and Assembling
–TIGHTENING
Tightening Torque Specification
Torque Chart
Piping Joint - -UPPERSTRUCTURE
–CANOPY
Remove and Install Canopy
–COUNTERWEIGHT
Remove and Install Countereight
–PUMP DEVICE
Remove and Install Pump Device
Disassemble and Assemble Pump Device
Maintenance Standard
–CONTROL VALVE
Remove and Install Control Valve
Disassemble And Assemble Control Valve
–SWING DEVICE
Remove and Install Swing Device
Disassemble and Assemble Swing Reduction Gear
Disassemble and Assemble Swing Motor
Disassemble And Assemble Parking Brake Switch Valve
Maintenance Standard
–PILOT VALVE
Remove and Install Front Pilot Valve
Remove and Install Boom Swing Pilot Valve
Disassemble Front Pilot Valve
Assemble Front Pilot Valve
Disassemble Boom Swing Pilot Valve
Assemble Boom Swing Pilot Valve
–SOLENOID VALVE
Disassemble and Assemble
Pilot Control Shut-Off Lever/Travel Speed Change Solenoid Valve - -UNDERCARRIAGE
–SWING BEARING
Remove and Install Swing Bearing
–TRAVEL DEVICE
Remove and Install Travel Device
Disassemble and Assemble Travel Device
Maintenance Standard
–CENTER JOINT
Remove and Install Center Joint
Disassemble Center Joint
Assemble Center Joint
–TRACK ADJUSTER
Remove and Install Track Adjuster
–FRONT IDLER
Remove and Install Front Idler
Maintenance Standard
–UPPER AND LOWER ROLLER
Remove and Install Upper Roller
Remove and Install Lower Roller
Maintenance Standard
–TRACK
Remove and Install Rubber Crawler
Maintenance Standard - -FRONT ATTACHMENT
–FRONT ATTACHMENT
Remove and Install Front Attachment
Maintenance Standard
–CYLINDER
Remove and Install Cylinders
Disassemble Cylinder
Assemble Cylinders
Tightening Torque Specifications
Maintenance Standard - -ENGINE
SAFETY INSTRUCTIONS
SPECIFICATIONS
PERFORMANCE CURVES
DIMENSIONS
–MECHANISM
FEATURE
ENGINE BODY
Cylinder Block
Cylinder Head
Crank Shaft
Piston and Piston Rings
Connecting Rod
Camshaft
Flywheel
Rocker Arm
LUBRICATING SYSTEM
General
Oil Pump
Relief Valve
Oil Filter Cartridge
Oil Pressure Switch
COOLING SYSTEM
General
Water Pump
Thermostat
Radiator
Radiator Cap
INTAKE/EXHAUST SYSTEM
Air Cleaner
Muffler
FUEL SYSTEM
General
Injection Pump
Injection Nozzle
Fuel Filter
Fuel Lift Pump
Governor
ELECTRICAL SYSTEM
Charging System
–DISASSEMBLING AND SERVICING
GENERAL
Engine Identification
General Precautions
Tightening Torques
Troubleshooting
Servicing Specifications
Maintenance Check List
Check and Maintenance
Special Tools
ENGINE BODY
CHECKING AND ADJUSTING
DISASSEMBLING AND ASSEMBLING
Draining Water and Oil
External Components
Cylinder Head and Valves
Gear Case
Piston and Connecting Rod
Flywheel and Crankshaft
SERVICING
Cylinder Head<
Timing Gear and Camshaft
Piston and Connecting Rod
Crankshaft
Cylinder Bore
LUBRICATING SYSTEM
CHECKING
SERVICING
Oil Pump
COOLING SYSTEM
CHECKING
Fan Belt
Radiator
DISASSEMBLING AND ASSEMBLING
FUEL SYSTEM
CHECKING AND ADJUSTING
Injection Pump
Injection Nozzle
DISASSEMBLING AND ASSEMBLING
Injection Pump
Injection Nozzle
ELECTRICAL SYSTEM
CHECKING
Starter
Glow Plug
Alternator and Regulator
DISASSEMBLING AND ASSEMBLING
Starter
Alternator
SERVICING
Starter
Alternator
Technical Manual
- -GENERAL
–SPECIFICATION
Outline
Specifications
Working Ranges and Machine
Dimensions for Transportation
Engine Specifications
–INTERCHANGEABILITY
Component Interchangeability List - -UPPERSTRUCTURE
–GENERAL
Outline
–PUMP DEVICE
Outline
Main Circuit
–SWING DEVICE
Outline
Swing Reduction Gear
Swing Motor
Valve Unit
Parking Brake
–CONTROL VALVE
Outline
Flow Combiner Valve
Main Relief Valve
Overload Relief Valve
Make-Up Valve
–PILOT VALVE
Outline
Construction
Function
Operation
–OTHERS
Solenoid Valve - -UNDERCARRIAGE
–GENERAL
Outline
–TRAVEL DEVICE
Outline
Travel Motor
Travel Brake Valve
Travel Motor Swash Angle Control
Counterbalance Valve
Relief Valve
Travel Reduction Gear
–OTHERS
Swing Bearing
Center Joint
Track Adjuster - -ELECTRICAL SYSTEM
–GENERAL
Electrical Part Layout
-HYDRAULIC SYSTEM
–GENERAL
Outline - -OPERATIONAL PERFORMANCE TEST
–INTRODUCTION
Purpose
Preparation for Performance Tests
–ENGINE TEST
Engine Speed
Engine Compression Pressure
Valve Clearance
Nozzle Check
Injection Timing
–EXCAVATOR TEST
Travel Speed
Track Revolution Speed
Mistrack Check
Travel Motor Leakage
Swing Speed
Swing Function Drift Check
Swing Motor Check
Maximum Swingable Slant Angle
Swing Bearing Play
Hydraulic Cylinder Cycle Time
Dig Function Drift Check
Control Lever and Pedal Stroke
Control Lever and Pedal
Operating Force
–COMPONENT TEST
Pilot Pressure
Main Relief Valve Pressure Setting
Overload Relief Valve Pressure Setting
Swing Motor Relief Valve Pressure Setting
–STANDARD
Performance Standard Table - -TROUBLESHOOTING
–DIAGNOSING PROCEDURE
Introduction
Diagnosing Procedure
How to Read the Troubleshooting Flow Charts’
Check Battery Voltage
–ENGINE CONTROL SYSTEM
Engine
–MONITOR SYSTEM
Monitor Panel
Fuse Fails
Malfunction of Coolant Temperature Gauge
Malfunction of Fuel Gauge
Malfunction of Alternator Indicator
Malfunction of Engine Oil Pressure Indicator
Malfunction of Overheat Indicator
Malfunction of Fuel Level Indicator
Malfunction of Air Filter Restriction Indicator
Malfunction of Buzzer
Malfunction of Hour Meter
Malfunction of Fast Travel Indicator
Electrical Test Precautions
Continuity Check
Voltage Check
–MACHINE OPERATION SYSTEM
Actuator System Troubleshooting
Front Attachment System Troubleshooting
Swing System Troubleshooting
Travel System Troubleshooting - -EXЗЗU ELECTRICAL CIRCUIT DIAGRAM
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