Complete Technical Manual for John Deere PowerTech 10.5L and 12.5L Diesel Base Engines, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

John Deere PowerTech 10.5L and 12.5L Diesel Base Engines workshop Component Technical Manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

ctm100 - PowerTechTM 10.5 L and 12.5 LDiesel Engines Base Engine - (Worldwide Edition) Component Technical Manual.pdf
CTM100 (06APR04) (ENGLISH) - John Deere PowerTech 10.5L & 12.5L Diesel Engines - John Deere Base Engine Technical Manual.pdf

PRODUCT DETAILS:
Total Pages: 512 pages
File Format: PDF (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

ctm100 - PowerTech™ 10.5 L and 12.5 LDiesel Engines Base Engine -: (Worldwide Edition)
Component Technical Manual

Table of Contents

Foreword

PowerTech™ 6105HF and 6125HF Engines

PowerTech™ 6105HF and 6125HF Engines—Continued

PowerTech™ 6105HRW and 6125HRW Engines

PowerTech™ 6105HRW and 6125HRW Engines—Continued

PowerTech™ 6105ADW Engine

PowerTech™ 6105ADW Engine—Continued

PowerTech™ 6125 Tier II (30000—)

6105 and 6125 Engine Cutaway View

Section 01: General Information

Group 000: Safety

Avoid Heating Near Pressurized Fluid Lines

Avoid High-Pressure Fluids

Avoid Hot Exhaust

Construct Dealer-Made Tools Safely

Decommissioning — Proper Recycling and Disposal of Fluids and Components

Follow Safety Instructions

Handle Agricultural Chemicals Safely

Handle Fluids Safely—Avoid Fires

Handling Batteries Safely

Illuminate Work Area Safely

Install All Guards

Live With Safety

Park Machine Safely

Practice Safe Maintenance

Precautions for Welding

Prepare for Emergencies

Prevent Acid Burns

Prevent Battery Explosions

Prevent Machine Runaway

Protect Against High Pressure Spray

Protect Against Noise

Recognize Safety Information

Remove Paint Before Welding or Heating

Replace Safety Signs

Service Cooling System Safely

Service Machines Safely

Stay Clear of Rotating Drivelines

Support Machine Properly

Understand Signal Words

Use Proper Lifting Equipment

Use Proper Tools

Use Steps and Handholds Correctly

Wait Before Opening High-Pressure Fuel System

Wear Protective Clothing

Work in Clean Area

Work In Ventilated Area

Group 001: Engine Identification and Applications

Engine Model Designation

Engine Serial Number Plate Information

Engine Option Code Label

Engine Application Chart

Group 002: Fuels, Lubricants and Coolant

Diesel Fuel

Diesel Fuel Additive Products

BioDiesel Fuel

Lubricity of Diesel Fuel

Handling and Storing Diesel Fuel

Testing Diesel Fuel

Fuel Filters

Diesel Engine Break-In Oil — Non-Emissions Certified and Certified Tier 1, Tier 2, Tier 3, Stage I, Stage II, and Stage III

Oil Information for Uncertified or Tier 1 Engines

Diesel Engine Oil — Non-Emissions Certified and Certified Tier 1 and Stage I

Oil Information for Tier 2 Engines

Diesel Engine Oil — Tier 2 and Stage II

Extended Diesel Engine Oil Service Intervals

Alternative and Synthetic Lubricants

Mixing of Lubricants

Oilscan™ and CoolScan™

Grease

Diesel Engine Coolant (engine with wet sleeve cylinder liners)

Supplemental Coolant Additives

Testing Diesel Engine Coolant

Disposing of Coolant

Operating in Warm Temperature Climates

Section 02: Repair and Adjustments

Group 010: Engine Rebuild Guide, Break-In and Tune-Up

Engine Overhaul Guidelines

Engine Repair Stand

Safety Precautions

Disconnect Turbocharger Oil Inlet Line

Install Adapter on Repair Stand

Engine Lifting Procedure

Mount Engine on Repair Stand

Clean Engine

6105 and 6125 Engine Disassembly Sequence

Sealant Application Guidelines

6105 and 6125 Engine Assembly Sequence

Engine Break-In Guidelines

Perform Engine Break-In

Check Crankcase Ventilation System

Check Air Intake System

Check Exhaust System

Check and Service Cooling System

Check Electrical System

Preliminary Engine Testing Before Tune-Up

General Tune-Up Recommendations

Group 020: Cylinder Head and Valves

Remove and Install Rocker Arm Cover

Clean and Inspect Crankcase Ventilation Assembly

Replace Rocker Arm Cover Gasket

Check and Adjust Valve Assembly Clearances and Injector Preload

Remove Rocker Arm Assembly

Remove Cylinder Head

Diagnosing Head Gasket Joint Failures

Head Gasket Inspection and Repair Sequence

Disassemble and Inspect Rocker Arms and Shaft Assembly

Preliminary Cylinder Head and Valve Checks

Assemble Rocker Arms and Shaft Assembly

Check Valve Height in Relation to Head Surface (Valve Recess)

Remove Valve Assembly

Inspect and Measure Valve Springs

Inspect Valve Rotators

Clean, Inspect, and Measure Valves

Grind Valves

Clean and Inspect Cylinder Head

Check Cylinder Head Flatness

Measure Cylinder Head Thickness

Resurface Cylinder Head Combustion Face

Measure Valve Guide ID

Replace Valve Guides

Clean and Inspect Valve Seats

Grind Valve Seats

Remove Valve Seat Inserts

Measure Valve Seat Bore in Cylinder Head

Install Valve Seat Inserts

Install Valves

Replace Unit Injector Sleeve in Cylinder Head Using JDG981

Replace Unit Injector Sleeve in Cylinder Head Using JDG1184

Remove Unit Injector Sleeve Using JDG10014

Clean and Inspect Top Deck of Cylinder Block

Measure Cylinder Liner Standout (Height Above Block)

Install Cylinder Head

Torque-Turn Cylinder Head Cap Screws

Install Rocker Arm Assembly

Complete Final Assembly for Cylinder Head Installation

Group 030: Cylinder Block, Liners, Pistons, and Rods

Remove and Install Cylinder Block Front Plate

Preliminary Liner, Piston, and Rod Checks

Connecting Rods—General Information

Remove Pistons and Connecting Rods

Measure Cylinder Liner Standout (Height Above Block)

Remove Cylinder Liners Using D01062AA or D01073AA Cylinder Liner Puller

Remove Cylinder Liners Using JDG1145 Cylinder Liner Service Set

Visually Inspect Cylinder Liners

Deglaze Cylinder Liners

Clean Cylinder Liners

Cylinder Liner Manufacturing Date Code Explanation

Disassemble Piston/Rod Assembly and Clean Piston

Check Piston Compression Ring Groove Wear—6105 Engines

Check Piston Compression Ring Groove Wear—6125 Engines

Check Piston Oil Control Ring Groove Wear—6105 and 6125 Engines

Inspect Piston Pin and Pin Bore in Piston

Determine Piston-to-Liner Clearance

Measure Liner Flange Thickness

Inspect and Measure Connecting Rod Bearings

Inspect Connecting Rod and Cap

Inspect Piston Pins and Rod Bushings

Remove Piston Pin Bushing, Clean, and Inspect Bushing Bore

Install Piston Pin Bushing

Complete Disassembly of Cylinder Block (If Required)

Inspect and Clean Cylinder Block

Measure Cylinder Block

Recheck Cylinder Liner Standout (Height Above Block)

Install Cylinder Liner O-Rings and Packings

Install Cylinder Liners

Assemble Pistons and Connecting Rods

Install Pistons and Connecting Rods

Torque-Turn Connecting Rod Cap Screws

Check Engine Rotation for Excessive Tightness

Measure Piston Protrusion

Remove and Install Piston Spray Jets

Complete Final Assembly

Group 040: Crankshaft, Main Bearings, and Flywheel

Crankshaft Vibration Damper Torque Sequence

Inspect Crankshaft Vibration Damper

Check Crankshaft End Play

Remove Crankshaft Rubber Damper and Pulley

Remove Viscous Damper and Front Crankshaft Oil Seal

Remove Timing Gear Cover

Check Flywheel Housing Face Runout

Check Flywheel Face Flatness

Remove Flywheel

Inspect and Repair Flywheel

Replace Flywheel Ring Gear

Remove and Install Flywheel Housing

Install Flywheel

Remove Rear Crankshaft Oil Seal and Housing Assembly

Crankshaft and Main Bearing Failure Analysis

Remove Crankshaft Main Bearings

Check Main Bearing-to-Journal Oil Clearance

Remove Crankshaft

Inspect Crankshaft

Measure Assembled ID of Bearings and OD of Crankshaft Journals

Measure Assembled ID of Main Bearing Caps (Without Bearings)

Crankshaft Grinding Guidelines

Crankshaft Grinding Specifications

Replace Crankshaft Drive Gear

Inspect Thrust Bearings

Thrust Bearing New Part Specifications

Install Main and Thrust Bearing Inserts in Block

Install Crankshaft

Install Crankshaft Rear Oil Seal Housing

Install Crankshaft Rear Oil Seal and Wear Sleeve Assembly

Install Timing Gear Cover

Install Crankshaft Vibration Rubber Damper and Front Oil Seal

Install Viscous Damper Assembly and Front Oil Seal

Complete Final Assembly

Group 050: Camshaft and Timing Gear Train

Camshaft Gear Access Cover Torque Sequence

Check and Adjust Camshaft-to-Crankshaft Timing

Adjust Front Timing Gear Backlash

Adjust Front Timing Gear Backlash Without Using JDG993

Remove and Install Camshaft

Replace Fuel Supply Pump Drive Pin

Visually Inspect Camshaft and Roller Followers

Inspect and Measure Camshaft Bushing ID and Journal OD

Measure Camshaft Lobe Lift Height

Inspect Camshaft Position Sensor Lobe

Replace Camshaft Bushings

SAE “A” (Front) and SAE “B” (Rear) Auxiliary Drive Assembly

SAE B Rear Auxiliary Drive — Removal and Installation

Align SAE “A” Front Auxiliary Drive Adapter

Group 060: Lubrication System

Oil Filter and Oil Conditioning Housing Assembly

Remove Oil Filter and Valve Housing/Oil Cooler Cover and Valve Housing

Inspect and Replace Oil Filter Adapter

Remove, Inspect, and Install Oil Pressure Regulating Valve

Remove, Inspect, and Install Oil Cooler and Oil Filter Bypass Valves

Remove, Inspect, and Install Oil Pressure Relief Valve (If Equipped)

Remove, Clean, and Inspect Engine Oil Cooler

Install Oil Cooler/Oil Filter Valve Housing Assembly or Oil Cooler Cover/Valve Housing Assembly

Remove Engine Oil Pump

Clean and Inspect Oil Pump and Drive Gear

Install Engine Oil Pump

Remove Engine Oil Pan

Remove and Install Oil Pickup Tube

Install Engine Oil Pan

Group 070: Cooling System

Replace Bearings in Fan Drive Assembly

Inspect and Check Belt Tensioner Spring Tension

Replace Belt Tensioner Assembly

Remove Coolant Pump

Clean and Inspect Coolant Pump Parts

Install Coolant Pump

Remove Thermostats

Install Thermostats

Test Thermostat Opening Temperature

Remove and Install Thermostat Housing

Remove and Install Coolant Heater—if Equipped

Group 080: Air Intake and Exhaust System

Extending Turbocharger Life

Remove Turbocharger

Turbocharger Failure Analysis

Turbocharger Seven-Step Inspection

Perform Radial Bearing Clearance Test

Perform Axial Bearing End Play Test

Turbocharger — Repair

Prelube Turbocharger

Install Turbocharger

Turbocharger Break-In

Recommendations for Turbocharger Use

Remove, Inspect, and Install Exhaust Manifold

Remove, Inspect, and Install Intake Manifold

Remove and Install Aftercooler Assembly (6105A and 6125A Engines)

Inspect and Repair Aftercooler (6105A and 6125A Engines)

Group 090: Fuel System

Fuel System

Group 100: Starting and Charging Systems

Remove and Install Alternator (OEM Engines)

Remove and Install Starter Motor (OEM Engines)

Section 03: Theory of Operation

Group 120: Base Engine Operation

General Engine Operation

Lubrication System Operation

Cooling System Operation

Fuel System Theory of Operation

Head Gasket Joint Construction and Operation

Intake and Exhaust System Operation

Turbocharger Operation

How the Turbocharger is Lubricated

Section 04: Diagnostics

Group 150: Observable Diagnostics and Tests

About this Section of the Manual

10.5L/12.5L - L1 - Excessive Oil Consumption

10.5L/12.5L - L2 Engine Oil Pressure High

10.5L/12.5L Engines - L3 - Engine Oil Pressure Low

10.5L/12.5L Engines - L4 - Fuel in Oil

10.5L/12.5L Engines - L5 - Soot or Sludge in the Oil

10.5L/12.5L - C1 - Engine Coolant Temperature Above Normal

10.5L/12.5L - C2 - Engine Coolant Temperature Below Normal

10.5L/12.5L Engines - C3 - Coolant in Oil or Oil in Coolant

10.5L/12.5L Engines - C4 - Coolant Leaking from Weep Hole

Dynamometer Test

Check Cylinder Compression

Engine Oil Consumption

Check Engine Oil Pressure

Check for Excessive Engine Crankcase Pressure (Blow-By) (Base Pressure)

Check for Turbocharger Oil Seal Leak

Inspect Thermostat and Test Opening Temperature

Pressure Test Cooling System and Radiator Cap

Check for Head Gasket Failures

Check Intake Manifold Pressure (Turbo Boost)

Check for Intake and Exhaust Restrictions

Check for Intake Air Leaks

Check for Exhaust Air Leaks

Check Camshaft-to-Crankshaft Timing

Check Crankshaft Position Sensor Depth

Excessive Engine Vibration

Section 05: Tools and Other Materials

Group 170: Repair Tools and Other Materials

Engine Rebuild Guide, Break-In and Tune-Up (Group 010) Other Material

Cylinder Head and Valves (Group 020) Essential Tools

Cylinder Head and Valves (Group 020) Service Equipment and Tools

Cylinder Head and Valves (Group 020) Other Material

Cylinder Block, Liners, Pistons, and Rods (Group 030) Essential Tools

Cylinder Block, Liners, Pistons, and Rods (Group 030) Service Equipment and Tools

Cylinder Block, Liners, Pistons, and Rods (Group 030) Other Material

Crankshaft, Main Bearings and Flywheel (Group 040) Essential Tools

Crankshaft, Main Bearings and Flywheel (Group 040) Service Equipment and Tools

Crankshaft, Main Bearings and Flywheel (Group 040) Other Material

Camshaft and Timing Gear Train (Group 050) Essential Tools

Camshaft and Timing Gear Train (Group 050) Service Equipment and Tools

Camshaft and Timing Gear Train (Group 050) Other Material

Lubrication System (Group 060) Essential Tools

Lubrication System (Group 060) Other Material

Cooling System (Group 070) Essential Tools

Cooling System (Group 070) Other Material

Air Intake and Exhaust System (Group 080) Essential Tools

Air Intake and Exhaust System (Group 080) Other Material

Starting and Charging Systems (Group 100) Essential Tools

Group 180: Diagnostic Service Tools

Observable Diagnostics and Tests Essential Tools

Group 190: Dealer Fabricated Service Tools

How to Make Tools

DFRG4—Camshaft Locking Tool

DFRG3—Cylinder Liner Holding Fixture

Section 06: Specifications

Group 200: Repair and General OEM Specifications

General OEM Engine Specifications

Unified Inch Bolt and Screw Torque Values

Metric Bolt and Screw Torque Values

Engine Rebuild Guide, Break-In and Tune-Up (Group 010) Specifications

Cylinder Head and Valves (Group 020) Specifications

Cylinder Block, Liners, Pistons and Rods (Group 030) Specifications

Crankshaft, Main Bearings and Flywheel (Group 040) Specifications

Camshaft and Timing Gear Train (Group 050) Specifications

Lubrication System (Group 060) Specifications

Cooling System (Group 070) Specifications

Air Intake and Exhaust System (Group 080) Specifications

Starting and Charging Systems (Group 100) Specifications

Group 210: Diagnostic Specifications

Observable Diagnostics and Test Specifications

Dynamometer Test Specifications (OEM Engines)

Intake Manifold Pressure (Turbocharger Boost) Specifications

John Deere PowerTech 10.5L and 12.5L Diesel Base Engines Component Technical Manual (CTM100)