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Komatsu 6D125 Series Diesel Engine Shop Manual - SEBE61500110

This Komatsu 6D125 Series Diesel Engine Service Repair Workshop Manual PDF Download has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity


APPLICABLE MODELS :

Komatsu 6D125 Series Diesel Engine


TABLE OF CONTENTS :

01 GENERAL
GENERAL VIEW
SPECIFICATIONS
GENERAL ASSEMBLY DRAWING
ENGINE PERFORMANCE CURVE
WEIGHT TABLE
11 STRUCTURE AND FUNCTION
GENERAL STRUCTURE
INTAKE AND EXHAUST SYSTEM
INTAKE AND EXHAUST SYSTEM
TURBOCHARGER
ENGINE BODY
CYLINDER HEAD
VALVE SYSTEM
CYLINDER BLOCK
MAIN CIRCULATION PART
TIMING GEAR
FLYWHEEL AND FLYWHEEL HOUSING
LUBRICATION SYSTEM
LUBRICATION SYSTEM CHART
OIL PUMP
REGULATOR VALVE
OIL FILTER
OIL COOLER
FUEL SYSTEM
FUEL SYSTEM CHART
FUEL INJECTION PUMP
FUEL INJECTION NOZZLE
FUEL FILTER
MAGNETIC SWITCH (FUEL CUT SOLENOID)
COOLING SYSTEM
COOLING SYSTEM CHART
WATER PUMP
THERMOSTAT
CORROSION RESISTOR
ELECTRICAL SYSTEM
ALTERNATOR
STARTING MOTOR
ELECTRICAL INTAKE AIR HEATER
ACCESSORY
AIR COMPRESSOR
EXHAUST BRAKE
12 TESTING AND ADJUSTING
ENGINE BODY
ADJUSTING VALVE CLEARANCE
MEASURING COMPRESSION PRESSURE
FUEL SYSTEM
CHECKING AND ADJUSTING FUEL INJECTOIN TIMING
TESTING AND ADJUSTING FUEL CUT SOLENOID
ADJUSTING ENGINE STOP MOTOR CABLE
FUEL INJECTION PUMP CALIBRATION DATA
PERFORMANCE TEST
RUN-IN STANDARD
PERFORMANCE TEST CRITERIA
TESTING AND ADJUSTING TOOL LIST
TESTING AND ADJUSTING DATA
TROUBLESHOOTING
POINTS TO REMEMBER WHEN TROUBLESHOOTING
METHOD OF USING TROUBLESHOOTING CHART
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)
S-2 ENGINE DOES NOT START
①ENGINE DOES NOT TURN
②ENGINE TURNS BUT NO EXHAUST GAS COMES OUT (FUEL IS NOT BEING INJECTED)
③EXHAUST GAS COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)
S-4 ENGINE STOPS DURING OPERATIONS
S-5 ENGINE DOES NOT ROTATE SMOOTHLY
S-6 ENGINE LACKS OUTPUT (NO POWER)
S-7 EXHAUST GAS IS BLACK (INCOMPLETE COMBUSTION)
S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST GAS IS BLUE)
S-9 OIL BECOMES CONTAMINATED QUICKLY
S-10 FUEL CONSUMPTION IS EXCESSIVE
S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN
S-12 OIL PRESSURE LAMP LIGHTS UP (DROP IN OIL PRESSURE)
-13 OIL LEVEL RISES
S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)
S-15 ABNORMAL NOISE IS MADE
S-16 VIBRATION IS EXCESSIVE
13 DISASSEMBLY AND ASSEMBLY
GENERAL
DISASSEMBLY
ASSEMBLY
AIR COMPRESSOR
DISASSEMBLY
ASSEMBLY
EXHAUST BRAKE
DISASSEMBLY AND ASSEMBLY
14 MAINTENANCE STANDARD
TURBOCHARGER
CYLINDER HEAD
VALVE AND VALVE GUIDE
ROCKER ARM SHAFT
CROSSHEAD
CYLINDER BLOCK
CYLINDER LINER
CRANKSHAFT
CAMSHAFT
CAM FOLLOWER AND PUSH ROD
PISTON, PISTON RING AND PISTON PIN
CONNECTING ROD
TIMING GEAR
FLYWHEEL AND FLYWHEEL HOUSING
VIBRATION DAMPER
WATER PUMP AND THERMOSTAT
OIL COOLER
OIL PUMP
MAIN RELIEF VALVE
REGULATOR VALVE AND SAFETY VALVE
AIR COMPRESSOR
15 REPAIR AND REPLACEMENT OF PARTS
REPLACING VALVE SEAT INSERTS
REPLACING NOZZLE HOLDER SLEEVE
REPLACING VALVE GUIDE
REPLACING CROSS HEAD GUIDE
GRINDING THE VALVE
REPLACING CAM BUSHING
REPLACING FLYWHEEL RING GEAR
REPLACING CAM GEAR
PRESSURE TEST

 

File Type : PDF
Language : English
Total pages : 402


This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are further divided into the each main group of components.

STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance standards.

TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs.
Troubleshooting charts correlating "Problems" with "Causes" are also included in this section.

DISASSEMBLY AND ASSEMBLY
This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.

MAINTENANCE STANDARD
This section gives the judgment standards for inspection of disassembled parts.
The contents of this section may be described in STRUCTURE AND FUNCTION.

OTHERS
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams.
In addition, this section may give the specifications of attachments and options together.

This (OEM) Komatsu Shop Manual has detailed illustrations as well as step by step instructions, It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic. With step by step instruction & highly detailed exploded pictures & diagrams to show you how to complete the required job correctly & efficiently Using. Provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.

This page sometime can be found use following keyword : service manual, repair manual, workshop manual, technical manual, owner manual, maintenance manual, operating manual, parts manual. Please make sure you read and understand the title of this manual before decided to buy.

 

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