MidWestTechService, Parts and Operator's Manuals, in stock and ready to ship!
Fast free USA shippingShips in 1 business daySave 10% on 2 manuals, 15% on 3+

Komatsu PC356LC-8, PC350HD-8 Hydraulic Excavator Service Manual

1,098 pages · Publication CEBM007501

$109.59
Fast free USA shippingShips in 1 business daySave 10% on 2 manuals, 15% on 3 or morePay by credit or debit card or with PayPal. No PayPal account needed.
Models
PC356LC-8, PC350HD-8
Serial coverage
PC350LC-8 A10001, PC350HD-8 A00001
Manual type
Service Manual
Pages
1,098
Publication
CEBM007501
Condition
Brand new
Komatsu PC356LC-8, PC350HD-8 Hydraulic Excavator Service Manual, publication CEBM007501

What's inside

From the manual's own table of contents: 5 sections, 318 entries. See sample pages (PDF, 790 KB)

FOREWORD89 topics
  • 12CONTENTS
  • GENERAL
  • STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
  • STANDARD VALUE TABLES
  • TESTING AND ADJUSTING
  • TROUBLESHOOTING
  • DISASSEMBLY AND ASSEMBLY
  • AIR CONDITIONER
  • DIAGRAMS AND DRAWINGS
  • Pressure Compensation Valve
  • Pressure Compensation Valve Inner Shuttle
  • Boom Regeneration Circuit
  • Arm Regeneration Circuit
  • Merge-divider Valve
  • LS Select Valve
  • Self Pressure Reducing Valve
  • Travel Junction Valve
  • Travel PPC Shuttle Valve
  • Boom Drift Prevention Valve
  • Arm Drift Prevention Valve
  • Quick Return Valve
  • Lift Check Valve
  • Main Relief Valve
  • 2-Stage Safety-suction Valve
  • Variable Pressure Compensation Valve
  • Attachment Circuit Selector Valve
  • Drift Prevention Valve
  • Valve Control
  • PPC Valve
  • Travel PPC Valve
  • Pressure Reducing Valve
  • Service PPC Valve (with EPC Valve)
  • Service PPC Valve
  • Solenoid Valve
  • PPC Accumulator
  • Return Oil Filter
  • Center Swivel Joint
  • Travel Motor - Type: HMV160ADT-2 - PC350LC-8
  • Parking Brake - PC350LC-8
  • Travel Motor - Type: KMV200ADT-2 - PC350HD-8
  • Parking Brake - PC350HD-8
  • Safety Valve
  • Swing Motor
  • Reverse Prevention Valve
  • Hydraulic Cylinder
  • Boom Cylinder
  • Arm Cylinder
  • Bucket Cylinder
  • WORK EQUIPMENT
  • Dimension Of Arm
  • Dimension Of Bucket
  • AIR CONDITIONER PIPING
  • ELECTRICAL SYSTEM
  • Engine Control
  • Fuel Control Dial
  • Engine Controller
  • Sensors
  • Coolant Temperature Sensor
  • Oil Pressure Switch
  • Engine Speed Sensor
  • Boost Pressure And Temperature Sensor
  • WIF (Water-in-fuel Detection) Sensor
  • Engine Oil Level Sensor
  • ELECTRONIC CONTROL SYSTEM
  • Control Function
  • System Diagram
  • Engine and Pump Control
  • Pump and Valve Control
  • LS Control Function
  • Cut-off Function
  • 2-Stage Relief Function
  • Power Maximizing and Machine Push-up
  • Auto-deceleration
  • Auto-warm-up and Overheat Prevention
  • Swing Control
  • Travel Control
  • Attachment Flow Control and Circuit Selector
  • System Component Parts
  • PPC Oil Pressure Switch
  • Oil Pressure Sensor
  • Pump Pressure Sensor (High Pressure)
  • Pump Controller
  • MONITOR SYSTEM
  • Machine Monitor
  • Monitor Control, Display Portion
  • Monitor Items And Display
  • Switches
  • KOMTRAX Terminal System
  • KOMTRAX Communication Modem - TH300
TESTING AND ADJUSTING54 topics
  • Display of Warning After Check Before Starting
  • Display of Ending of Maintenance Interval
  • Display of Check of Working Mode and Travel Speed
  • Display of Ordinary Screen
  • Display of End Screen
  • Selection of Auto-deceleration
  • Selection of Working Mode
  • Selection of Travel Speed
  • Operation to Stop Alarm Buzzer
  • Operation of Windshield Wiper
  • Operation of Window Washer
  • Operation of Air Conditioner/heater
  • Operation to Display Camera Mode (if CameraiIs Installed)
  • Operation to Display Clock and Service Meter
  • Check of Maintenance Information
  • Setting and Display of User Mode
  • KOMTRAX Message
  • Display of Energy-saving Guidance
  • Display of Caution Monitor
  • Display of Automatic Judgment of Breaker
  • Display of User Code and Failure Code
  • Function of Checking Display of LCD (Liquid Crystal Display)
  • Function of Checking Service Meter
  • Function of Changing Attachment/Maintenance Password
  • Service Mode
  • Monitoring
  • Abnormality Record (Mechanical Systems)
  • Abnormality Record (Electrical Systems)
  • Abnormality Record (Air-conditioning System/Heater System)
  • Maintenance Record
  • Maintenance Mode Change
  • Phone Number Entry
  • Default (Key-ON Mode)
  • Default (Unit)
  • Default (With/Without Attachment)
  • Default (Attachment/Maintenance Password)
  • Default (Camera)
  • Default (ECO Display)
  • Default (Breaker Detect)
  • Adjustment (Pump Absorption Torque)
  • Adjustment (Low Speed)
  • Adjustment (Attachment Flow Adjustment)
  • Cylinder Cut-Out
  • No Injection
  • Fuel Consumption
  • KOMTRAX Settings (Terminal Status)
  • KOMTRAX Settings (GPS & Communication Status)
  • KOMTRAX Setting (Modem S/N: TH300)
  • Display of KOMTRAX Service Message
  • Long Distance Transport Mode
  • HANDLING VOLTAGE CIRCUIT OF ENGINE CONTROLLER
  • PREPARATION WORK FOR TROUBLESHOOTING OF ELECTRICAL SYSTEM
  • PROCEDURE FOR TESTING DIODES
  • PM CLINIC SERVICE
TROUBLESHOOTING141 topics
  • CA238 - NE Speed Sensor Supply Voltage Error
  • CA271 - IMV/PCV1 Short Error
  • CA272 - IMV/PCV1 Open Error
  • CA281 - Pump Press Balance Error
  • CA322 - Injector #1 Open/short Error
  • CA323 - Injector #5 Open/short Error
  • CA324 - Injector #3 Open/short Error
  • CA325 - Injector #6 Open/short Error
  • CA331 - Injector #2 Open/short Error
  • CA332 - Injector #4 Open/short Error
  • CA342 - Calibration Code Incompatibility
  • CA351 - Injectors Drive Circuit Error
  • CA352 - Sensor Supply One Volt Low Error
  • CA386 - Sensor Supply One Volt High Error
  • CA428 - Water in Fuel Sensor High Error
  • CA429 - Water in Fuel Sensor Low Error
  • CA435 - Eng Oil Press Sw Error
  • CA441 - Battery Voltage Low Error
  • CA442 - Battery Voltage High Error
  • CA449 - Rail Pressure Very High Error
  • CA451 - Rail Pressure Sensor High Error
  • CA452 - Rail Pressure Sensor Low Error
  • CA488 - Chg Air Temp High Torque Derate
  • CA553 - Rail Pressure High Error
  • CA559 - Rail Pressure Low Error
  • CA689 - Engine NE Speed Sensor Error
  • CA731 - Engine BKUP Speed Sensor Phase Error
  • CA757 - All Persistent Data Lost Error
  • CA778 - Engine BKUP Speed Sensor Error
  • CA1633 - KOMNET Datalink Timeout Error
  • CA2185 - Throttle Sensor Supply Volt High Error
  • CA2186 - Throttle Sensor Supply Volt Low Error
  • CA2249 - Rail Pressure Very Low Error
  • CA2265 - Electric Lift Pump High Error
  • CA2266 - Electric Lift Pump Low Error
  • CA2311 - IMV Solenoid Error
  • CA2555 - Grid Htr Relay Volt High Error
  • CA2556 - Grid Htr Relay Volt Low Error
  • D110KB - Battery Relay Drive Short Circuit
  • D19JKZ - Personal Code Relay Abnormality
  • D862KA - GPS Antenna Discon
  • DA22KK - Pump Solenoid Power Low Error
  • DA25KP - 5 V Sensor 1 Power Abnormality
  • DA29KQ - Model Selection Abnormality
  • DA2RMC - Pump Communication Abnormality
  • DAF8KB - Short Circuit in Camera Power Supply
  • DAFGMC - GPS Module Error
  • DAFRMC - CAN Discon (Monitor Detected)
  • DGH2KB - Hyd Oil Sensor Short
  • DHPAMA - F Pump Pressure Sensor Abnormality
  • DHPBMA - R Pump Pressure Sensor Abnormality
  • DHS3MA - Arm Curl PPC Sensor Abnormality
  • DHS4MA - Bucket Curl PPC Pressure Sensor Abnormality
  • DHX1MA - Overload Sensor Abnormality (Analog)
  • DW43KA - Travel Speed Solenoid Disconnection
  • DW43KB - Travel Speed Solenoid Short Circuit
  • DW45KA - Swing Brake Solenoid Disconnection
  • DW45KB - Swing Brake Solenoid Short Circuit
  • DW91KA - Travel Junction Solenoid Disconnection
  • DW91KB - Travel Junction Solenoid Short Circuit
  • DWA2KA - Attachment Sol Open Circuit
  • DWA2KB - Attachment Sol Short Circuit
  • DWJ0KA - Merge-Divider Solenoid Disconnection
  • DWJ0KB - Merge-Divider Solenoid Short Circuit
  • DWK0KA - 2-Stage Relief Sol. Open Circuit
  • DWK0KB - 2-Stage Relief Solenoid Short Circuit
  • DXA0KA - PC-EPC Solenoid Open Circuit
  • DXA0KB - PC-EPC Solenoid Short Circuit
  • DXE0KA - LS-EPC Solenoid Disconnection
  • DXE0KB - LS-EPC Solenoid Short Circuit
  • DXE4KA - Service Current EPC Disconnection
  • DXE4KB - Service Current EPC Short Circuit
  • DY20KA - Wiper Working Abnormality
  • DY20MA - Wiper Parking Abnormality
  • DY2CKA - Washer Drive Open Circuit
  • DY2CKB - Washer Drive Short Circuit
  • DY2DKB - Wiper Motor Drive Forward System Short
  • DY2EKB - Wiper Drive Reverse Short Circuit
  • E-MODE (ELECTRICAL SYSTEM)
  • Information Contained in Troubleshooting Table
  • E-1 Engine Does Not Start
  • E-2 Auto-decelerator Does Not Operate
  • E-3 Automatic Warming-up System Does Not Operate
  • E-4 Preheater Does Not Operate
  • E-5 All Work Equipment, Swing, and Travel Mechanism do not move
  • E-6 Power Maximizing Function Does Not Operate
  • E-7 Machine Monitor Does Not Display At All
  • E-8 Machine Monitor Does Not Display Some Items
  • E-9 Contents of Display by Machine Monitor are Different from Applicable Machine
  • E-10 Fuel Level Monitor Was Lit in Red While Engine Running
  • E-11 Engine Coolant Temperature Gauge Does Not Indicate Normally
  • E-12 Hydraulic Oil Temperature Gauge Does Not Indicate Normally
  • E-13 Fuel Level Gauge Does Not Indicate Normally
  • E-14 Swing Lock Monitor Does Not Indicate Normally
  • E-15 When Monitor Switch is Operated, Monitor Displays Nothing
  • E-16 Windshield Wiper and Window Washer do not Operate
  • E-17 Machine Push-up Function Does Not Operate Normally
  • E-18 Monitoring Function Fails to Display “Boom Raise” Normally
  • E-19 Monitoring Function Fails to Display “Boom Lower” Normally
  • E-20 Monitoring Function Fails to Display “Arm In” Normally
  • E-21 Monitoring Function Fails to Display “Arm Out” Normally
  • E-22 Monitoring Function Fails to Display “Bucket Curl” Normally
  • E-23 Monitoring Function Fails to Display “Bucket Dump” Normally
  • E-24 Monitoring Function Fails to Display “Swing” Normally
  • E-25 Monitoring Function Fails to Display “Travel” Normally
  • E-26 Monitoring Function Fails to Display “Travel Differential Pressure” Normally
  • E-27 Monitoring Function Fails to Display “Service” Normally
  • E-28 KOMTRAX System Does Not Operate Normally
  • E-29 Air Conditioner Does Not Operate
  • E-30 Travel Alarm Does Not Sound or Does Not Stop Sounding
  • E-31 Horn Does Not Sound
  • H-MODE (HYDRAULIC AND MECHANICAL SYSTEMS)
  • System Chart for Hydraulic and Mechanical System
  • H-1 All Work Equipment Lack Power, or Travel and Swing Speeds are Slow
  • H-2 Engine Speed Sharply Drops or Engine Stalls
  • H-3 No Work Equipment, Swing or Travel Move
  • H-4 Abnormal Noise is Heard from Around Hydraulic Pump
  • H-5 Auto-decelerator Does Not Work
  • H-6 Fine Control Mode Does Not Function or Responds Slow
  • H-7 Boom Moves Slowly or Lacks Power
  • H-8 Arm Moves Slowly or Lacks Power
  • H-9 Bucket Moves Slowly or Lacks Power
  • H-10 Work Equipment Does Not Move in its Single Operation
  • H-11 Work Equipment has a bit too Fast Hydraulic Drift
  • H-12 Work Equipment Has Big Time Lag
  • H-13 Other Work Equipment Moves When Relieving Single Circuit
  • H-14 Power Max. Switch Does Not Operate
  • H-15 In Compound Operation, Work Equipment with Larger Load Moves Slowly
  • H-16 In Swing + Boom Raise Operation, Boom Moves Slowly
  • H-17 In Swing + Travel Operation, Travel Speed Drops Sharply
  • H-18 Machine Swerves in Travel
  • H-19 Machine Travels Slowly
  • H-20 Machine Cannot Be Easily Steered or Lacks Power
  • H-21 Travel Speed Does Not Shift, or it is too Slow or Fast
  • H-22 Track Shoe Does Not Turn (On One Side Only)
  • H-23 Machine Does Not Swing
  • H-24 Swing Acceleration is Poor, or Swing Speed is Slow
  • H-25 Excessive Overrun When Stopping Swing
  • H-26 There is Big Shock when Stopping Swing
  • H-27 Large Sound is made when Upper Structure Stops Swinging
  • H-28 Swing Hydraulic Drift is too big
DISASSEMBLY AND ASSEMBLY24 topics
  • CARRIER ROLLER
  • Disassembly
  • Assembly
  • TRACK ROLLER
  • IDLER
  • RECOIL SPRING
  • SPROCKET
  • Removal
  • Installation
  • TRACK SHOE
  • Expansion
  • REVOLVING FRAME
  • COUNTERWEIGHT
  • HYDRAULIC TANK
  • CONTROL VALVE
  • HYDRAULIC PUMP
  • Oil Seal in Hydraulic Pump input Shaft
  • WORK EQUIPMENT PPC VALVE
  • Cab Glass (Stuck Glass)
  • Front Window
  • Floor Frame
  • Air Conditioner Unit
  • KOMTRAX Communication Modem
  • Monitor
AIR CONDITIONER5 topics
  • Control of Compressor Oil
  • Adding of Compressor Oil
  • Compressor Replacement
  • Applying Compressor Oil for O-ring
  • Desiccant Replacement Procedure

Inside this manual

Real pages from this service manual (1,098 pages). Open the sample pages (PDF, 789 KB)

Sample pages from the Komatsu PC356LC-8, PC350HD-8 Hydraulic Excavator Service Manual: Troubleshooting, Diagram, Specifications, Foldout diagram
  • Troubleshooting, page 641: FAILURE CODE (DISPLAY OF CODE)
  • Diagram, page 760: E-MODE (ELECTRICAL SYSTEM)
  • Specifications, page 930: DISASSEMBLY AND ASSEMBLY
  • Foldout diagram, page 1,094: Electrical circuit diagram (2/5)

Other manuals for this machine

Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the PC350HD-8 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.

This manual: Service Manual CEBM007501$109.59
Other manuals for the PC350HD-8

Operator's manuals

Details

This is a service manual

Here's how it compares to the other manual types.

This manual

Service manual

Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.

Operator's manual

Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.

Parts manual

Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.

Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.

What it's used for

Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.

Service shops and owner/operators who repair their own equipment

Identifying correct parts and seeing how assemblies come apart and go back together

Keeping equipment running with less downtime

Factory manual, 1,098 pages

Quantity one is the manual described above.

Fast free USA shipping

Ships in 1 business day.

60-day returns

Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy

Binder not included

Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.

Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).