Komatsu PC240LL-10 Log Loader with 6D107E-2 Engine Road Builder Service Manual

Name: Komatsu PC240LL-10 Log Loader with 6D107E-2 Engine Road Builder Service Manual
Brand: MidWestTech
SKU: CEBM028501
Price: 189.69 USD
Availability: InStock

1,832 pages · Publication CEBM028501

$189.69

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Models: PC240LL-10 Log Loader with 6D107E-2 Engine
Serial coverage: A20601 and up
Manual type: Service Manual
Pages: 1,832
Publication: CEBM028501
Condition: Brand new

Komatsu PC240LL-10 Log Loader with 6D107E-2 Engine Road Builder Service Manual, publication CEBM028501

What's inside

From the manual's own table of contents: 4 sections, 526 entries. See sample pages (PDF, 841 KB)

Search the contents

FOREWORD105 topics

12CONTENTS
STANDARD VALUE TABLES
TESTING AND ADJUSTING
TROUBLESHOOTING
DISASSEMBLY AND ASSEMBLY
MAINTENANCE STANDARD
AIR CONDITIONER
DIAGRAMS AND SCHEMATICS
Arm Drift Prevention Valve (Log Loader)
Operation
Suction Safety Valve For Drift Prevention Valve
Arm Quick Return Valve
Variable Back Pressure Valve
Main Relief Valve
Swing Motor
Swing Holding Brake
Relief Valve
Swing 2-Stage Relief Valve
Swing Motor Reverse Prevention Valve
Travel Motor
Operation of Travel Motor
Operation of Parking Brake
Brake Valve
Counterbalance Valve
Suction Safety Valve
PPC Valve
Work Equipment and Swing PPC Valve
Travel PPC Valve
Solenoid Valve
Attachment Solenoid Valve
Center Swivel Joint
Accumulator
PPC Accumulator
WORK EQUIPMENT
Road Builder
Log Loader
Work Equipment Shim
Bucket Play Adjustment Shim (Road Builder)
CAB AND ITS ATTACHMENTS
ELECTRICAL SYSTEM
Electrical Control System
Machine Control System Diagram
Engine Control Function
Engine and Pump Combined Control Function
Pump and Valve Control Function
One-Touch Power Maximizing Function
Auto-Deceleration Function
Engine Automatic Warm-Up Function
Overheat Prevention Function
Turbocharger Protection Function
Swing Control Function
Quick Warm-Up Function
Swing 2-Stage Relief Function
Travel Control Function
PPC Lock Function
Attachment Flow Control Function
System Component Part
Engine Controller
Pump Controller
Fuel Control Dial
Resister for PC-EPC valve
CAN Terminating Resistor
Engine Oil Pressure Switch
PPC Oil Pressure Switch
MACHINE MONITOR SYSTEM
Machine Monitor
Input and Output Signals
Display
Gauges
Caution Monitor
Pilot Monitor
Switches
Guidance ICON and Function Switch
Operator Mode Function
Service Mode Function
KOMTRAX SYSTEM
KOMTRAX terminal
SENSORS
Ambient Pressure Sensor
Charge (Boost) Pressure and Temperature Sensor
Coolant Temperature Sensor
Ne (Crankshaft) Speed Sensor
Bkup (Camshaft) Speed Sensor
Common Rail Pressure Sensor
Exhaust Manifold Pressure Sensor
EGR Orifice Temperature Sensor
EGR Valve Lift Sensor
Turbo Speed Sensor
KVGT Position Sensor
Mass Air Flow and Temperature Sensor
KDPF Differential Pressure and Outlet Pressure Sensor
KDOC Inlet Temperature Sensor
KDOC Outlet Temperature Sensor
KDPF Outlet Temperature Sensor
Crankcase Pressure Sensor
Engine Oil Level Sensor
Fuel Level Sensor
Coolant Level Sensor
Hydraulic Oil Temperature Sensor
Front Pump Oil Pressure Sensor
Rear Pump Oil Pressure Sensor
PPC Oil Pressure Sensor
Air Cleaner Clogging Sensor
Front Pump Swash Plate Sensor
Rear Pump Swash Plate Sensor

TESTING AND ADJUSTING83 topics

Adjusting
HYDRAULIC SYSTEM
Releasing Remaining Pressure from Hydraulic Circuit
and Travel Circuits
Testing
Measuring Oil Pressure in Control Circuit
Measuring and Adjusting Oil Pressure in Pump PC Control Circuit
Measuring and Adjusting Oil Pressure in Pump LS Control Circuit
Checking Oil Pressure with Sensor Adapter (Special Tool)
Measuring Solenoid Valve Output Pressure
Operating Condition
SOFT SWING ADJUSTMENTS (IF EQUIPPED)
Overview
Adjustments
To balance the system proceed as follows
Measuring PPC Valve Output Pressure
Adjusting Play of Work Equipment and Swing PPC Valves
Testing Pump Swash Plate Sensor
Isolating the Parts Causing Hydraulic Drift in Work Equipment
Checking
Measuring Oil Leakage
Bleeding Air From Hydraulic Circuit
Bleeding air
MIRROR ADJUSTMENT
Mirror (A)
Mirror (B)
Mirror (C)
Special Functions of Machine Monitor
Upper Part of Machine Monitor (Display Portion)
Upper Part of Machine Monitor (Switch Portion)
Lower Part of Machine Monitor (Switch Portion)
Ordinary Functions and Special Functions of Machine Monitor
Operator Mode (Outline)
Display of KOMATSU Logo
Display of Inputting Password
Display of Check of Breaker Mode
Display of Check Before Starting
Display of Warning After Check Before Starting
Display of Ending of Maintenance Interval
Display of Check of Working Mode and Travel Speed
Display of Standard Screen
Display of End Screen
Display of Engine Shutdown Secondary Switch 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 Camera is Installed)
Operation to Display Clock and Service Meter
Check of Maintenance Information
(Including KOMTRAX Messages for User)
Display of ECO Guidance
Display of Caution Monitor
Display of KDPF Regeneration
Display of Action Level 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 / Pre-Defined
Monitoring / Custom
Monitoring Items Table
Abnormality Record (Mechanical Systems)
Abnormality Record (Electrical Systems)
Maintenance Record
Maintenance Mode Setting
Phone Number Entry
Default (Key-On Mode)
Default (Unit)
Default (With/Without Attachment)
Default (Camera)
Diagnostic Tests (Cylinder Cut-out)
Diagnostic Tests (Regeneration for Service)
Diagnostic Tests (KDPF Memory Reset)
Adjustment (Pump Absorption Torque (F))
Adjustment (Pump Absorption Torque (R))
Adjustment (Low Speed)
Adjustment (Attachment Flow Adjustment)
Adjustment (Cal F Pump Swash Plate Sensor)
Adjustment (Cal R Pump Swash Plate Sensor)

TROUBLESHOOTING327 topics

Failure Code [879DKZ] Sunlight Sensor Open or Short Circuit
Failure Code [879EMC] Ventilation Damper Abnormality
Failure Code [879FMC] Air Mix Damper Abnormality
Failure Code [879GKX] Refrigerant Abnormality
Failure Code [989L00] Engine Controller Lock Caution 1
Failure Code [989M00] Engine Controller Lock Caution 2
Failure Code [989N00] Engine Controller Lock Caution 2
Failure Code [A1U0N3] HC Desorb Request 1
Failure Code [A1U0N4] HC Desorb Request 2
(96 Hour Timer Request)
Failure Code [AA10NX] Air Cleaner Clogging
Failure Code [AB00KE] Charge Voltage Low
Failure Code [B@BAZG] Engine Oil Pressure Low
Failure Code [B@BAZK] Eng Oil Level Low
Failure Code [B@BCNS] Engine Coolant Overheat
Failure Code [B@BCZK] Radiator Coolant Level Low
Failure Code [B@HANS] Hyd Oil Overheat
Failure Code [CA115] Eng Ne and Bkup Speed Sens Error
Failure Code [CA122] Chg Air Press Sensor High Error
Failure Code [CA123] Chg Air Press Sensor Low Error
Failure Code [CA131] Throttle Sensor High Error
Failure Code [CA132] Throttle Sensor Low Error
Failure Code [CA144] Coolant Temp Sens High Error
Failure Code [CA145] Coolant Temp Sens Low Error
Failure Code [CA153] Chg Air Temp Sensor High Error
Failure Code [CA154] Chg Air Temp Sensor High Error
Failure Code [CA187] Sensor 2 Supply Volt Low Error
Failure Code [CA221] Ambient Press Sensor High Error
Failure Code [CA222] Ambient Press Sensor Low Error
Failure Code [CA227] Sensor 2 Supply Volt High Error
Failure Code [CA234] Eng Overspeed
Failure Code [CA238] Ne Speed Sensor Supply Volt Error
Failure Code [CA239] Ne Speed Sens Supply Volt High Error
Failure Code [CA271] IMV/PCV1 Short Error
Failure Code [CA272] IMV/PCV1 Open Error
Failure Code [CA295] Ambient Press Sens In Range Error
Failure Code [CA322] Inj #1 (L#1) Open/Short Error
Failure Code [CA323] Inj #5 (L#5) Open/Short Error
Failure Code [CA324] Inj #3 (L#3) Open/Short Error
Failure Code [CA325] Inj #6 (L#6) Open/Short Error
Failure Code [CA331] Inj #2 (L#2) Open/Short Error
Failure Code [CA332] Inj #4 (L#4) Open/Short Error
Failure Code [CA343] ECM Critical Internal Failure
Failure Code [CA351] Injectors Drive Circuit Error
Failure Code [CA352] Sensor 1 Supply Volt Low Error
Failure Code [CA356] Mass Air Flow Sensor High Error
Failure Code [CA357] Mass Air Flow Sensor Low Error
Failure Code [CA386] Sensor 1 Supply Volt High Error
Failure Code [CA428] Water in Fuel Sensor High Error
Failure Code [CA429] Water in Fuel Sensor Low Error
Failure Code [CA435] Eng Oil Press Sw Error
Failure Code [CA441] Battery Voltage Low Error
Failure Code [CA442] Battery Voltage High Error
Failure Code [CA449] Rail Press Very High Error
Failure Code [CA451] Rail Press Sensor High Error
Failure Code [CA452] Rail Press Sensor Low Error
Failure Code [CA488] Chg Air Temp High Torque Derate
Failure Code [CA515] Rail Press Sens Sup Volt High Error
Failure Code [CA516] Rail Press Sens Sup Volt Low Error
Failure Code [CA553] Rail Press High Error
Failure Code [CA555] Crankcase Press High Error 1
Failure Code [CA556] Crankcase Press High Error 2
Failure Code [CA559] Rail Press Low Error
Failure Code [CA595] Turbo Speed High Error 2
Failure Code [CA687] Turbo Speed Low Error
Failure Code [CA689] Eng Ne Speed Sensor Error
Failure Code [CA691] Intake Air Temp Sens High Error
Failure Code [CA692] Intake Air Temp Sens Low Error
Failure Code [CA697] ECM Int Temp Sensor High Error
Failure Code [CA698] ECM Int Temp Sensor Low Error
Failure Code [CA731] Eng Bkup Speed Sens Phase Error
Failure Code [CA778] Eng Bkup Speed Sensor Error
Failure Code [CA1117] Persistent Data Lost Error
Failure Code [CA1664] KDOC Malfunction
Failure Code [CA1691] Regeneration Ineffective
Failure Code [CA1695] Sensor 5 Supply High Error
Failure Code [CA1696] Sensor 5 Supply Volt Low Error
Failure Code [CA1843] Crankcase Press Sens High Error
Failure Code [CA1844] Crankcase Press Sens Low Error
Failure Code [CA1879] KDPF Delta P Sensor High Error
Failure Code [CA1881] KDPF Delta P Sensor Low Error
Failure Code [CA1883] KDPF Delta P Sens In Range Error
Failure Code [CA1921] KDPF Soot Load High Error 1
Failure Code [CA1922] KDPF Soot Load High Error 2
Failure Code [CA1942] Crankcase Press Sens In Range Error
Failure Code [CA1993] KDPF Delta Pressure Low Error
Failure Code [CA2185] Throt Sensor Sup Volt High Error
Failure Code [CA2186] Throt Sensor Sup Volt Low Error
Failure Code [CA2249] Rail Press Very Low Error
Failure Code [CA2271] EGR Valve Pos Sens High Error
Failure Code [CA2272] EGR Valve Pos Sens Low Error
Failure Code [CA2288] Turbo Speed High Error 1
Failure Code [CA2311] IMV Solenoid Error
Failure Code [CA2349] EGR Valve Solenoid Open Error
Failure Code [CA2353] EGR Valve Solenoid Short Error
Failure Code [CA2357] EGR Differential Pressure
Failure Code [CA2373] Exh Manifold Press. Sens Volt
Failure Code [CA2374] Exhaust Manifold Press Sens Low Error
Failure Code [CA2375] EGR Orifice Temp Sens High Error
Failure Code [CA2376] EGR Orifice Temp Sens Low Error
Failure Code [CA2381] KVGT Pos Sens High Error
Failure Code [CA2382] KVGT Pos Sens Low Error
Failure Code [CA2383] KVGT Solenoid Open Error
Failure Code [CA2386] KVGT Solenoid Short Error
Failure Code [CA2387] KVGT Servo Error
Failure Code [CA2554] Exh Manifold Press Sens In Range Error
Failure Code [CA2555] Grid Htr Relay Volt Low Error
Failure Code [CA2556] Grid Htr Relay Volt High Error
Failure Code [CA2637] KDOC Face Plugging
Failure Code [CA2639] Manual Stationary Regeneration Request
Failure Code [CA2961] EGR Orifice Temp High Error 1
Failure Code [CA2973] Chg Air Press Sensor In Range Error
Failure Code [CA3133] KDPF Outlet Press Sens High Error
Failure Code [CA3134] KDPF Outlet Press Sens Low Error
Failure Code [CA3135] KDPF Outlet Press Sens In Range Error
Failure Code [CA3251] KDOC Inlet Temp High Error
Failure Code [CA3253] KDOC Temp Error - Non Regeneration
Failure Code [CA3254] KDOC Outlet Temp High Error 1
Failure Code [CA3255] KDPF Temp Error - Non Regeneration
Failure Code [CA3256] KDPF Outlet Temp High Error 1
Failure Code [CA3311] KDOC Outlet Temp High Error 2
Failure Code [CA3312] KDPF Outlet Temp High Error 2
Failure Code [CA3313] KDOC Inlet Temp Sensor Low Error
Failure Code [CA3314] KDOC Inlet Temp Sens High Error
Failure Code [CA3315] KDOC Inlet Temp Sens In Range Error
Failure Code [CA3316] KDOC Outlet Temp Sens Low Error
Failure Code [CA3317] KDOC Outlet Temp Sens High Error
Failure Code [CA3318] KDOC Outlet Temp Sens In Range Error
Failure Code [CA3319] KDPF Outlet Temp Sens High Error
Failure Code [CA3321] KDPF Outlet Temp Sens Low Error
Failure Code [CA3322] KDPF Outlet Temp Sens In Range Error
Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error
Failure Code [CA3421] Mass Air Flow Sensor Sup Volt Low Error
Failure Code [CA3741] Rail Press Valve Trip Error
Failure Code [D110KB] Battery Relay Output Voltage
Failure Code [D19JKZ] Personal Code Relay Abnormality
Failure Code [D811MC] KOMTRAX Error
Failure Code [D862KA] GPS Antenna Open Circuit
Failure Code [D8ALKA] Operating Lamp Open Circuit (KOMTRAX)
Failure Code [D8ALKB] Operating Lamp Short Circuit (KOMTRAX)
Failure Code [D8AQKR] CAN2 Discon (KOMTRAX)
Failure Code [DA20MC] Pump Controller
Failure Code [DA22KK] Pump Solenoid Power Low Error
Failure Code [DA25KP] 5V Sensor 1 Power Abnormality
Failure Code [DA29KQ] Model Selection Abnormality
Failure Code [DA2LKA] Operating Lamp Open Circuit (Pump Con)
Failure Code [DA2LKB] Operating Lamp Short Circuit (Pump Con)
Failure Code [DA2QKR] CAN2 Discon (Pump Con)
Failure Code [DA2QKR] CAN1 Discon (Pump Con)
Failure Code [DAF0MB] Monitor ROM Abnormality
Failure Code [DAF0MC] Monitor Error
Failure Code [DAF8KB] Camera Power Supply Short Circuit
Failure Code [DAF9KQ] Model Selection Abnormality
Failure Code [DAFGMC] GPS Module Error
Failure Code [DAFLKA] Operating Lamp Open Circuit (Monitor)
Failure Code [DAFLKB] Operating Lamp Short Circuit (Monitor)
Failure Code [DAFQKR] CAN2 Discon (Monitor)
Failure Code [DAZ9KQ] A/C Model Selection Abnormality
Failure Code [DAZQKR] CAN2 Discon (Aircon ECU)
Failure Code [DB2QKR] CAN2 Discon (Engine Con)
Failure Code [DB2RKR] CAN1 Discon (Engine Con)
Failure Code [DGH2KB] Hyd Oil Sensor Short Circuit
Failure Code [DHA4KA] Air Cleaner Clog Sensor Open Circuit
Failure Code [DHPAMA] F Pump Press Sensor Abnormality
Failure Code [DHPBMA] R Pump Press Sensor Abnormality
Failure Code [DHS3MA] Arm Curl PPC Press Sensor Abnormality
Failure Code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality
Failure Code [DHS8MA] Boom Raise PPC Press Sensor Abnormality
Failure Code [DHS9MA] Boom Lower PPC Press Sensor Abnormality
Failure Code [DHSAMA] Swing RH PPC Press Sensor Abnormality
Failure Code [DHSBMA] Swing LH PPC Press Sensor Abnormality
Failure Code [DHSCMA] Arm Dump PPC Press Sensor Abnormality
Failure Code [DHSDMA] Bucket Dump PPC Press Sensor Abnormality
Failure Code [DHSFMA] Travel Fwd LH PPC Press Sensor Abnormality
Failure Code [DHSGMA] Travel Fwd RH PPC Press Sensor Abnormality
Failure Code [DHSHMA] Travel Rev LH PPC Press Sensor Abnormality
Failure Code [DHSJMA] Travel Rev RH PPC Press Sensor Abnormality
Failure Code [DKR0MA] F Pump Swash Plate Sensor Abnormality
Failure Code [DKR1MA] R Pump Swash Plate Sensor Abnormality
Failure Code [DR21KX] Camera 2 Picture Rev. Drive Abnormality
Failure Code [DR31KX] Camera 3 Picture Rev. Drive Abnormality
Failure Code [DV20KB] Travel Alarm Short Circuit
Failure Code [DW43KA] Travel Speed Sol Open Circuit
Failure Code [DW43KB] Travel Speed Sol Short Circuit
Failure Code [DW45KA] Swing Brake Sol Open Circuit
Failure Code [DW45KB] Swing Brake Sol Short Circuit
Failure Code [DW91KA] Travel Junction Sol Open Circuit
Failure Code [DW91KB] Travel Junction Sol Short Circuit
Failure Code [DWA2KA] Attachment Sol Open Circuit
Failure Code [DWA2KB] Attachment Sol Short Circuit
Failure Code [DWK0KA] 2-Stage Relief Sol Open Circuit
Failure Code [DWK0KB] 2-Stage Relief Sol Short Circuit
Failure Code [DWK2KA] Variable Back Press Sol Open Circuit
Failure Code [DWK2KB] Variable Back Press Sol Short Circuit
Failure Code [DWK8KA] Swing Press C/O Sol Open Circuit
Failure Code [DWK8KB] Swing Press C/O Sol Short Circuit
Failure Code [DXA8KA] PC-EPC (F) Sol Open Circuit
Failure Code [DXA8KB] PC-EPC (F) Sol Short Circuit
Failure Code [DXA9KA] PC-EPC (R) Sol Open Circuit
Failure Code [DXA9KB] PC-EPC (R) Sol Short Circuit
Failure Code [DXE0KA] LS-EPC Sol Open Circuit
Failure Code [DXE0KB] LS-EPC Sol Short Circuit
Failure Code [DXE4KA] Attachment Flow EPC Open Circuit
Failure Code [DXE4KB] Attachment Flow EPC Short Circuit
Failure Code [DXE5KA] Merge-divide Main Sol Open Circuit
Failure Code [DXE5KB] Merge-divide Main Sol Short Circuit
Failure Code [DXE6KA] Merge-divide LS Sol Open Circuit
Failure Code [DXE6KB] Merge-divide LS Sol Short Circuit
Failure Code [DY20KA] Wiper Working Abnormality
Failure Code [DY20MA] Wiper Parking Abnormality
Failure Code [DY2CKB] Washer Drive Short Circuit
Failure Code [DY2DKB] Wiper Drive (Fwd) Short Circuit
Failure Code [DY2EKB] Wiper Drive (Rev) Short Circuit
ELECTRICAL SYSTEM (E-MODE)
E-1 Engine Does Not Start (Engine Does Not Rotate)
E-2 Manual Pre-Heating System Does Not Work
E-3 Automatic Pre-Heating System Does Not Work
E-4 Pre-Heating Monitor Does Not Light Up When Pre-Heater is Operated
Displays Nothing
Engine Oil Level Monitor Lights Up in Yellow
Radiator Coolant Level Monitor Lights Up in Yellow
E-8 Coolant Temperature Monitor Lights Up in White While Engine is Running
While Engine is Running
E-10 Charge Level Monitor Lights Up While Engine is Running
E-11 Fuel Level Monitor Lights Up in Red While Engine is Running
E-13 Water Separator Monitor Lights Up While Engine is Running
E-14 Coolant Temperature Monitor Lights Up in Red While Engine is Running
E-16 Engine Oil Pressure Monitor Lights Up in Red While Engine is Running
E-17 Fuel Gauge Indicates Either Full or Empty and Does Not Move
E-18 Fuel Gauge Indicates Incorrect Amount (Indicates Neither Full Nor Empty)
Does Not Move
(Indicates Neither Min Nor Max)
Actual Machine
E-24 Machine Monitor Does Not Display Some Items
E-25 Function Switch Does Not Work
E-26 Automatic Pre-Heating System Does Not Work (In Cold Season)
When Auto-Deceleration Switch is Operated
E-28 Auto-Deceleration is Not Actuated or Canceled When Lever is Operated
When Working Mode Switch is Operated
When Working Mode is Changed
Switch is Operated
E-32 Travel Speed Does Not Change When Travel Speed is Shifted
E-33 Alarm Buzzer Does Not Stop Sounding
Service Meter is Not Displayed
E-35 Service Mode Cannot be Selected
E-36 Any of Work Equipment, Swing and Travel Does Not Work
E-37 Any of Work Equipment, Swing and Travel Can Not be Locked
E-38 Machine Can Not Swing While Swing Brake Cancel Switch is Canceled
Monitor is Not Displayed
E-41 One-Touch Power Maximizing Function Cannot be Released
E-42 Travel Alarm Does Not Sound When Machine Travels
E-43 Travel Alarm Does Not Stop Sounding When Machine Stops
E-44 Horn Does Not Sound
E-45 Horn Does Not Stop Sounding
E-47 Wiper Does Not Operate When Wiper Switch is Operated
With Monitoring Function
E-51 ARM IN Indication is Not Displayed Properly With Monitoring Function
E-55 SWING Indication is Not Displayed Properly With Monitoring Function
E-56 TRAVEL Indication is Not Displayed Properly With Monitoring Function
E-57 Service is Not Displayed Properly With Monitoring Function
E-58 Attachment Hydraulic Circuit Cannot be Changed
E-59 KOMTRAX System Does Not Work Properly
HYDRAULIC AND MECHANICAL SYSTEM (H-MODE)
Information Mentioned in Troubleshooting Table (H Mode)
Failure Mode and Cause Table
H-1 All of Work Equipment, Swing and Travel Operation Lacks Speed or Power
H-2 Engine Speed Lowers Significantly or Engine Stalls
H-3 Any of Work Equipment, Swing and Travel Does Not Work
H-4 Unusual Sound is Heard from Around Hydraulic Pump
H-5 Fine Control Performance or Response is Poor
H-6 Boom Operation Lacks Speed or Power
H-7 Arm Operation Lacks Speed or Power
H-8 Bucket Operation Lacks Speed or Power
H-9 Work Equipment Does Not Move in Single Operation
H-10 Hydraulic Drift of Boom is Large
H-11 Hydraulic Drift of Arm is Large
H-12 Hydraulic Drift of Bucket is Large
H-13 Time Lag of Work Equipment is Large
Other Parts of Work Equipment Move
H-15 One-Touch Power Maximizing Function Does Not Work
Equipment Having Heavier Load Moves Slower
Boom Rising Speed is Low
H-18 In Combined Operations of Swing and Travel, Travel Speed Drops Largely
H-19 Machine Does Not Travel Straight
H-20 Travel Speed is Too Low
H-21 Machine is hard to Steer or Travel Power is Low
H-22 Travel Speed Does Not Change, or Travel Speed is Too Low or High
H-23 One of Tracks Dose Not Run
H-24 Upper Structure Does Not Swing to the Right or Left
H-25 Upper Structure Swing Only to the Right or Left
H-26 Swing Acceleration is Poor or Swing Speed is Low (Both Right and Left)
H-27 Swing Aceleration is Poor or Swing Speed is Low (Either Right or Left)
(Both Right and Left)
(Either Right or Left)
H-30 Shock is Large When Upper Structure Stops Swinging
H-31 Large Unusual Noise is Heard When Upper Structure Stops Swinging
H-32 Swing Drift on a Slope is Large While Swing Holding Brake is Applied
H-33 Swing Drift On a Slope is Large While Swing Holding Brake is Released
H-34 Attachment Circuit Cannot be Changed While Attachment is Installed
H-35 Oil Flow in Attachment Circuit Cannot be Controlled
TROUBLESHOOTING OF ENGINE (S-MODE)
Information Mentioned in Troubleshooting Table (S-Mode)
S-1 When Starting Switch is Turned to START Position, Engine Does Not Crank
S-2 When Engine Cranks, Smoke Does Not Come Out
S-3 Engine Does Not Start While Fuel is Injected (Incomplete Combustion)
S-4 Startability is Poor
S-5 Engine Does Not Pick Up Smoothly
S-6 Engine Stops During Operation
S-7 Engine Runs Rough or is Unstable
S-8 Engine Lacks Power
S-9 Exhaust Smoke is Black (KDPF Clogs Up Early)
S-10 Engine Oil Consumption is Too Much
S-11 Oil Becomes Contaminated Early
S-12 Fuel Consumption is Excessive
S-13 Oil is in Coolant (or Coolant Spurts or Coolant Level Goes Down)
S-14 Engine Oil Pressure Drops
S-15 Fuel is Contaminated in Engine Oil
S-16 Coolant is Contaminated in Engine Oil (Oil Becomes Cloudy White)
S-17 Coolant Temperature Rises Too High (Overheating)
S-18 Unusual Noise is Heard
S-19 Vibration is Excessive
S-20 Automatic Regeneration is Operated Frequently
S-21 Active Regeneration is Operated for Long
S-22 White Smoke Comes Out in the Process of Active Regeneration
No Code
Short Or Open In Attachment Solenoid System
Open in Cab Tilt System

AIR CONDITIONER7 topics

Dimensions of Arm
Boom Cylinder
Standard
Large Diameter Piston
Arm Cylinder
Bucket Cylinder
Heel Cylinder

Inside this manual

Real pages from this service manual (1,832 pages). Open the sample pages (PDF, 840 KB)

Sample pages from the Komatsu PC240LL-10 Log Loader with 6D107E-2 Engine Road Builder Service Manual: Diagram, Troubleshooting, Specifications, Foldout diagram

Diagram, page 748: Circuit diagram related to mass air flow sensor
Troubleshooting, page 944: Failure Code [CA3322] KDPF Outlet Temp Sens In Range Error
Specifications, page 1,672: MAINTENANCE STANDARDS
Foldout diagram, page 1,822: Electrical circuit diagram (1/6)

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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, 1,832 pages

Quantity one is the manual described above.

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