Komatsu Mini Excavator PC33E-6 service & repair manual

Description Komatsu Mini Excavator PC33E-6 service & repair manual

Komatsu Electric Mini Excavator PC33E-6 pdf workshop service repair manual

Serial number 2001 and up

Technical documentation, specifications, testing, troubleshooting, maintenance, electrical diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

SERVICE MANUAL CONTENT:
Index and Foreword
Foreword, Safety, Basic Information
How to Read the Shop Manual
Safety Notice for Operation
Precautions for Battery Type Mini Excavator
Precautions to Prevent Fire
Procedures If Fire Occurs
Precautions When You Dispose of Waste Materials
Precautions When You Handle Hydraulic Equipment
Precautions When You Disconnect and Connect Pipings
Precautions When You Handle Electrical Equipment
Precautions Against High Voltage and High Temperature
Procedure for Inspection and Maintenance of High Voltage Parts
Procedure to Restore High Voltage Parts
Precautions When Machine Falls over and Power Electronics Components Have Damage
Precautions for Machine Not to be Put in Water
In Cold Weather
Practical Use of KOMTRAX
Disconnect and Connect Push-Pull Type Coupler
Precautions for Disconnection and Connection of Connectors
How to Disconnect and Connect Deutsch Connector
How to Disconnect and Connect Slide Lock Type Connector
How to Disconnect and Connect Connector with Lock to Pull
How to Disconnect and Connect Connector with Lock to Push
How to Disconnect and Connect Connector with Housing to Rotate
Standard Tightening Torque Table
Conversion Table
Abbreviation List

Specifications
Specification Drawing
Working Range Drawings
Weight Table
Lubricant

Structure and Function
Boot-up System
Layout Drawing of Boot-up System
System Operating Lamp System
Special Power Supply for Battery
Electric Motor Shutdown Secondary Switch
ID Key System
Component Parts of Boot-Up System
Electric Drive System
Layout Drawing of Electric Drive System
Worker Protection System When You Disassemble Power Electronics Components
High Voltage Wiring (Power Cable)
Component Parts of Electric Drive System
Electric Motor System
Layout Drawing of Electric Motor System
Electric Motor Control System
Auto-Deceleration System
Overheat Prevention System
Automatic Idle Stop System
Cooling System
Layout Drawing of Cooling System
Control System
Layout Drawing of Control System
Machine Monitor System
KOMTRAX System
Component Parts of Control System
Hydraulic System
Layout Drawing of Hydraulic System
CLSS
Electric Motor and Pump Combined Control System
Component Parts of Hydraulic System
Work Equipment System
Layout Drawing of Work Equipment System
Structure of Valve Control
PPC Lock System
Work Equipment and Travel Automatic Lock System
Component Parts of Work Equipment System
Swing System
Layout Drawing of Swing System
Component Parts of Swing System
Travel System
Layout Drawing of Travel System
System Diagram of Travel Control System
Component Parts of Travel System
Undercarriage and Frame
Layout Drawing of Undercarriage
Specifications of Undercarriage
Idler Cushion
Work Equipment
Structure of Work Equipment
Function of Work Equipment
Work Equipment Clearance Adjustment Shim
CAB Related Parts
Tilt Type Floor

Standard Value Table
Standard Value Table for Electric Motor
Standard Value Table for Electric Motor: PC33E-6
Standard Value Table for Machine
Standard Value Table for Machine: PC33E-6
Machine Posture and Procedures to Measure Performance

Testing and Adjusting
Precautions Before Work
Related Information on Testing and Adjusting
Tools for Examination and Adjustment
Sketch of Tools for Testing and Adjusting
Motor and Cooling System
Examine Electric Motor Speed
Electric Drive System
Power Train
Examine Swing Circle Bearing Clearance
Undercarriage and Frame
Examine and Adjust Track Tension
Hydraulic System
Release Remained Pressure from Hydraulic Circuit
Examine and Adjust Oil Pressure in Work Equipment, Travel, and Boom Swing Circuits
Examine and Adjust Swing and Blade Circuit Oil Pressure
Examine and Adjust Oil Pressure in Control Circuit
Examine and Adjust LS Differential Pressure
Adjust Oil Pressure in Pump PC Control Circuit
Examine Outlet Pressure of Solenoid Valve
Examine PPC Valve Outlet Pressure
Adjust Play of Work Equipment and Swing PPC Valves
Examine Swing Parking Brake Release Pressure
Examine and Adjust Travel Deviation
Examine Parts Which Cause Hydraulic Drift of Work Equipment
Examine Oil Leakage
Bleed Air from Hydraulic Circuit
Pressurize Hydraulic Tank
Replace Pressure Reducing Valve Assembly
CAB Related Parts
How to Open and Close Floor
Electrical System
Set and Operate Machine Monitor
How to Start Up KOMTRAX Terminal
Handle Voltage Circuit of Motor Controller
Handle Special Power Supply for Battery
Examine Fuse
Measure Battery Voltage
Examine Diodes
Pm Clinic
Pm Clinic Service

Troubleshooting
Precautions Before Work
Precautions Before Work for Battery Type Mini Excavator
Related Information for Troubleshooting
General Troubleshooting Points
Sequence of Events in Troubleshooting
Inspection Before Troubleshooting
Inspection Procedure Before Troubleshooting
Test in Accordance with Testing Procedure
Preparation for Troubleshooting of Electrical System
Procedure for Troubleshooting
Symptom and Troubleshooting Numbers
Information Shown in Troubleshooting Table
Connector List and Layout (Canopy Specification)
Connector Contact Connection Table
T-Branch Box and T-Branch Adapter Table
Fuse Location Table
Failure Code Table
Troubleshooting by Failure Code (Display of Code)
Troubleshooting of Electrical System (E-Mode)
Troubleshooting for Hydraulic and Mechanical Systems (H Mode)

Disassembly and Assembly
Precautions Before Work
Precautions Before Work for Battery Type Mini Excavator
Related Information on Disassembly and Assembly
How to Read This Manual
Coating Materials List
Special Tool List
Sketches of Special Tools
Prepare
Drain and Add Hydraulic Oil
Cooling System
Remove and Install Hydraulic Oil Cooler Assembly
Power Train
Remove and Install Travel Motor and Final Drive Assembly
Remove and Install Swing Motor and Swing Machinery Assembly
Disassemble and Assemble Swing Machinery Assembly
Remove and Install Swing Circle Assembly
Undercarriage and Frame
Disassemble and Assemble Recoil Spring Assembly
Remove and Install Track Assembly
Disassemble and Assemble Idler Assembly
Disassemble and Assemble Track Roller Assembly
Disassemble and Assemble Carrier Roller Assembly
Remove and Install Revolving Frame Assembly
Remove and Install Protector
Hydraulic System
Remove and Install Center Swivel Joint Assembly
Disassemble and Assemble Center Swivel Joint Assembly
Remove and Install Hydraulic Tank Assembly
Remove and Install Main Pump Assembly
Work Equipment
Remove and Install Blade Assembly
Remove and Install Work Equipment Assembly
Remove and Install Boom Anti-Drop Valve Assembly
Remove and Install Arm Anti-Drop Valve Assembly
Disassemble and Assemble Anti-Drop Valve Assembly
Disassemble and Assemble Work Equipment Cylinder Assembly
CAB Related Parts
Remove and Install Floor Frame Assembly
Remove and Install Operator Seat
Remove and Install Seat Belt
Electrical System
Remove and Install Battery Assembly
Remove and Install Charge Inlet Assembly
Disassemble and Assemble Charge Inlet Assembly
Remove and Install Electric Motor Assembly
Remove and Install Controller Unit
Remove and Install Power Supply Controller
Remove and Install Contactor
Remove and Install Inverter
Remove and Install DC/DC Converter
Remove and Install BMS
Remove and Install Machine Controller
Remove and Install Machine Monitor Assembly
Remove and Install KOMTRAX Terminal

Maintenance Standard
Explanation of Terms for Maintenance Standard
Electric Motor and Cooling System
Maintenance Standard for Electric Motor
Maintenance Standard for Cooling System
Power Train
Maintenance Standard for Swing Circle
Maintenance Standard for Swing Machinery
Maintenance Standard for Sprocket
Undercarriage and Frame
Maintenance Standard for Track Frame and Idler Cushion
Maintenance Standard for Idler
Maintenance Standard for Track Roller
Maintenance Standard for Carrier Roller
Maintenance Standard for Rubber Shoes
Hydraulic System
Maintenance Standard for Hydraulic Tank
Maintenance Standard for Main Pump
Maintenance Standard for Main Pump Servo Valve
Maintenance Standard for PC-EPC Valve
Maintenance Standard for Swing Motor
Maintenance Standard for Travel Motor
Maintenance Standard for Control Valve
Maintenance Standard for Boom Anti-Drop Valve
Maintenance Standard for Arm Anti-Drop Valve
Maintenance Standard for Work Equipment and Swing PPC Valve
Maintenance Standard for Blade PPC Valve
Maintenance Standard for Boom Swing PPC Valve
Maintenance Standard for Travel PPC Valve
Maintenance Standard for Center Swivel Joint
Work Equipment
Maintenance Standard for Work Equipment Linkage
Dimensions of Arm
Maintenance Standard for Boom Cylinder
Maintenance Standard for Arm Cylinder
Maintenance Standard for Bucket Cylinder
Maintenance Standard for Blade Cylinder
Maintenance Standard for Boom Swing Cylinder

Others
Precautions Before Work
Stationary Charger
Precautions for Stationary Battery Charger
Structure and Operation of Stationary Charger
Examine and Adjust Stationary Battery Charger
Troubleshooting for Stationary Battery Charger
Disassemble and Assemble Stationary Charger

Circuit Diagrams
How to Read the Codes for Electric Cable
Hydraulic Circuit Diagram
Symbols Used in Hydraulic Circuit Diagram
Hydraulic Circuit Diagram (at Boom Raise Operation)
Hydraulic Circuit Diagram (at Left Swing Operation)
Hydraulic Circuit Diagram (at Boom Raise and Left Swing Operation)
Electrical Circuit Diagram
Symbols Used in Electric Circuit Diagram