John Deere 250C Articulated Dump Truck Operation and Test Service Manual (TM1785)
TM1785 - John Deere 250C Articulated Dump Truck Service Technical Manual - Operation and Test.pdf
Complete Operation & Test Service manual with Electrical Wiring Diagrams for John Deere 250C Articulated Dump Trucks, with all the shop information to maintain, diagnostic, repair, service like professional mechanics.
John Deere 250C Articulated Dump Trucks workshop Operation and Test 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.
MAIN SECTIONS
Foreword
Technical Information Feedback Form
General Information
Safety
General Specifications
Torque Values
Fuels and Lubricants
Operational Checkout Procedure
Operational Checkout Procedure
Engine
Theory of Operation
Diagnose Engine Malfunctions
Adjustments
Tests
Electrical System
System Information
System Diagrams
Sub-System Diagnostics
References
Power Train
Theory of Operation
Diagnostic Information
Tests
Pneumatic System
Theory of Operation
Diagnostic Information
Tests
Hydraulic System
Theory of Operation
Diagnostic Information
Tests
Heater and Air Conditioner
Theory of Operation
Diagnostic Information
Adjustments
Tests
Total Pages: 1,092 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS - Explanded View
9000 - General Information
01 - Safety
Avoid Heating Near Pressurized Fluid Lines
Avoid High-Pressure Fluids
Dispose of Waste Properly
Handle Chemical Products Safely
Handle Fluids Safely-Avoid Fires
Illuminate Work Area Safely
Live With Safety
Park Machine Safely
Practice Safe Maintenance
Prepare for Emergencies
Prevent Acid Burns
Prevent Battery Explosions
Remove Paint Before Welding or Heating
Replace Safety Signs
Service Machines Safely
Service Tires Safely
Support Machine Properly
Use Proper Lifting Equipment
Use Proper Tools
Wear Protective Clothing
Work in Clean Area
Work In Ventilated Area
02 - General Specifications
Articulated Dump Truck Specifications
Drain and Refill Capacities
Engine Specifications
Travel Speeds
03 - Torque Values
Additional Metric Cap Screw Torque Values
Check Oil Lines And Fittings
Hardware Torque Specifications
Imperial and SAE (Inch) Cap Screw And Nut Torque Values
Metric Bolt and Screw Torque Values
Metric Cap Screw And Nut Torque Values
Service Recommendations For Flat Face O-Ring Seal Fittings
Service Recommendations For Inch Series Four Bolt Flange Fittings
Service Recommendations for Metric Series Four Bolt Flange Fitting
Service Recommendations for O-Ring Boss Fittings
Unified Inch Bolt and Screw Torque Values
04 - Fuels & Lubricants
Alternative and Synthetic Lubricants
Diesel Engine Oil
Diesel Fuel
Diesel Fuel Storage
Do Not Use Galvanized Containers
Fuel Tank
Grease
Hydraulic Oil and Transfer Case Oil
Low Sulfur Diesel Fuel Conditioner
Lubricant Storage
Lubricity of Diesel Fuels
Mixing of Lubricants
Multipurpose Lubricant (Axles and Final Drives)
Oil Filters
Transmission Oil
9005 - Operational Checkout Procedure
10 - Operational Checkout Procedure
Operational Checkout
9010 - Engine
05 - Theory of Operation
250C (OM 366LA) Engine Sectional View
Cold Start Operation
Engine Operation
Fuel Circuit
15 - Diagnostic Information
Diagnose Engine Malfunctions
20 - Adjustments
Engine Exhaust Brake Valve Adjustment
Fuel Shutoff Solenoid Adjustment
JT05801 Clamp-On Electronic Tachometer Installation
PRO-LINK302256 9000 Microprocessor Installation
Reset Throttle Calibration Using PRO-LINK302256 9000 Microprocessor
Slow and Fast Idle Adjustment Using PRO-LINK302256 9000 Microprocessor
Slow and Fast Idle Adjustment Using Tachometer
Throttle Position Sensor Adjustment-Manual Method
Throttle Position Sensor Adjustment Using PRO-LINK302256 9000 Microprocessor
25 - Tests
Bleeding Fuel System
Injection Pump Spill Timing for New Pump
Injection Pump Timing for Original Pump
9015 - Electrical System
05 - System Information
Electrical Circuit Malfunctions
Electrical Schematic Symbols
Electrical System Visual Inspection
Grounded Circuit
High Resistance Circuit
Multimeter
Open Circuit
Reading a Component Location Diagram
Reading a Connector End View Diagram
Reading a System Functional Schematic
Reading a Wiring Diagram
Schematic, Wiring Diagram, and Component Location Information
Sensor Circuit Shorted to Ground
Sensor Circuit Shorted to Itself
Sensor Circuit Shorted to Power
Seven Step Electrical Test Procedure
Shorted Circuit
10 - System Diagrams
Cab Harness (W5) Breaker Panel Component Location
Cab Harness (W5) Component Location
Cab Harness (W5) Dash Panel Component Location
Cab Harness (W5) Instrument Panel Component Location
Cab Harness (W5) Wiring Diagram
Cab-to-Manifold Block Harness (W9) Component Location
Cab-to-Manifold Block Harness (W9) Wiring Diagram
Cab-to-Transmission Harness (W15) Wiring Diagram
Cab-to-Transmission (W15) and Speed Sensor Harness (W16) Component Location
Cold Start Harness (W7) Component Location
Cold Start Harness (W7) Wiring Diagram
Component Identification Table
Engine Harness (W6) Component Location
Engine Harness (W6) Wiring Diagram
Explanation of Wire Markings
Front Light Harness (W8) Component Location
Front Light Harness (W8) Wiring Diagram
Functional Schematic and Component Location Legend
Functional Schematic Section Legend
Rear Chassis Harness (W10) Component Location
Rear Chassis Harness (W10) Wiring Diagram
Roof Harness (W22) Component Location
Roof Harness (W22) Wiring Diagram
System Functional Schematic
Transmission Control Harness (W13) Component Location
Transmission Control Harness (W13) Wiring Diagram
Transmission Control-to-Cab Bulkhead Harness (W14) Component Location
Transmission Control-to-Cab Bulkhead Harness (W14) Wiring Diagram
Transmission Control-to-Vehicle Interface Harness (W17) Component Location
Transmission Control-to-Vehicle Interface Harness (W17) Wiring Diagram
Transmission Module Schematic
Transmission Speed Sensor Harness (W16) Wiring Diagram
Vehicle Interface Harness (W12) Component Location
Vehicle Interface Harness (W12) Wiring Diagram
Vehicle Interface Module Component Location
Vehicle Interface Module Schematic
15 - Sub-System Diagnostics
12 Volt Circuit Operational Information
12 Volt Circuit Schematic
12 Volt Circuit Theory of Operation
Air Conditioner Circuit Operational Information
Air Conditioner Circuit Schematic
Air Conditioner Circuit Theory of Operation
Cooling Fan Circuit Operational Information
Cooling Fan Circuit Schematic
Cooling Fan Circuit Theory of Operation
Display Module Circuit Operational Information
Display Module Circuit Schematic
Display Module Circuit Theory of Operation
Dome Light Circuit Operational Information
Dome Light Circuit Schematic
Dome Light Circuit Theory of Operation
Exhaust Brake Circuit Operational Information
Exhaust Brake Circuit Schematic
Exhaust Brake Circuit Theory of Operation
Flasher, Turn Signal, and Horn Circuit Operational Information
Flasher, Turn Signal, and Horn Circuit Schematic
Flasher, Turn Signal, and Horn Circuit Theory of Operation
Indicator Light Circuit Operational Information
Indicator Light Circuit Schematic
Indicator Light Circuit Theory of Operation
Inter-Axle Lock Circuit Operational Information
Inter-Axle Lock Circuit Theory of Operation
Inter-Axle Lock Schematic
Light Circuit Operational Information
Light Circuit Schematic
Light Circuit Theory of Operation
Park Brake Circuit Operational Information
Park Brake Circuit Schematic
Park Brake Circuit Theory of Operation
Power Circuit Operational Information
Power Circuit Schematic
Power Circuit Theory of Operation
Reverse Light Circuit Operational Information
Reverse Light Circuit Schematic
Reverse Light Circuit Theory of Operation
Rotating Beacon Circuit Operational Information
Rotating Beacon Circuit Schematic
Rotating Beacon Circuit Theory of Operation
Starting and Charging Circuit Operational Information
Starting and Charging Circuit Schematic
Starting and Charging Circuit Theory of Operation
Stop-Tail Light Circuit Operational Information
Stop-Tail Light Circuit Schematic
Stop-Tail Light Circuit Theory of Operation
Transmission Circuit Operational Information
Transmission Circuit Schematic
Transmission Circuit Theory of Operation
Transmission Range Hold Circuit Operational Information
Transmission Range Hold Circuit Schematic
Transmission Range Hold Circuit Theory of Operation
Unloader Valve Circuit Operational Information
Unloader Valve Circuit Schematic
Unloader Valve Circuit Theory of Operation
Wiper _ Washer Circuit Operational Information
Wiper _ Washer Circuit Schematic
Wiper _ Washer Circuit Theory of Operation
20 - References
Adding 12 or 24 Volt Accessories
Adjusting Headlights
Battery Operation
Battery Specifications
Check Battery Electrolyte Level and Terminals
C-Series Articulated Dump Trucks 250C SERVICEEXPERT342204242 Computer Connection
Diagnose Battery Malfunctions
Preparing PDM to Take Readings
Procedure for Testing Batteries
Replacing Batteries
Using Booster Batteries-24 Volt System
9020 - Power Train
05 - Theory of Operation
Torque Converter Operation
Transmission Clutch Engagement
Transmission Control System
Transmission Cross Sectional Diagram
Transmission External Components
Transmission Planetary Operation
15 - Diagnostic Information
Diagnose Power Train System Malfunctions
Diagnostic Procedure
Power Train Component Location Diagram
25 - Tests
Diagnostic Code Display Procedure
Diagnostic Codes
Park Brake Adjustment
Park Brake Pad Thickness Check
Park Brake Test
Torque Converter Lockup Test
Torque Converter Stall Test
Torque Converter Stator Tests
Transmission Clutch Drag Test
Transmission Diagnostic Codes
Transmission Pressure Test
Transmission Warm Up Procedure
Wheel Hub Bearing Preload Adjustment (Wheel Installed)
9022 - Pneumatic System
05 - Theory of Operation
Air Drier and Unloader Valve Operation
Air Suspension Seat Circuit Operation
Body Control Circuit Operation
Exhaust Brake and Hydraulic Retarder Circuit Operation
Front Suspension Leveling Circuit Operation
Inter-Axle Lock Circuit Operation
Park Brake Circuit Operation
Park Brake Valve Operation
Pneumatic System Operation
Pneumatic System Schematic Diagram
Pneumatic System Supply Circuit Operation
15 - Diagnostic Informtion
Diagnose Pneumatic System Malfunctions
Diagnostic Procedure
Pneumatic System Component Location
Pneumatic System Schematic
25 - Tests
Park Brake Valve Pressure Test
Unloader Valve Pressure Test and Adjustment
9025 - Hydraulic System
05 - Theory of Operation
Articulated Dump Truck Hydraulic System Operation
Articulated Dump Truck Hydraulic System Overview
Body Control Valve Operation
Brake Accumulator Charge Circuit Operation
Hydraulic System Manifold Operation
Main Hydraulic Pump Load Sense Operation
Main Hydraulic Pump Operation
Secondary Steering Hydraulic Pump Operation
Service Brake Valve Operation
Steering and Secondary Steering System Operation
Steering Valve Operation
Steering Valve Operation - T125418 - Steering Valve Operation
15 - Diagnostic Informtion
Diagnose Hydraulic System Malfunctions
Diagnose Service Brake System Malfunctions
Diagnose Steering System Malfunctions
Diagnostic Procedure
Hydraulic System Circuit Symbols
Hydraulic System Component Location
Hydraulic System Schematic
25 - Tests
Body Lower Circuit Relief Valve Test
Body Raise Circuit Relief Valve Test
Brake Accumulator Charge Valve Band Test and Adjustment
Brake Accumulator Pressure Reducing Valve Test and Adjustment
Brake Low Pressure Switch and Brake Accumulator Test
Cycle Time Test
Hydraulic Oil Cleanup Procedure Using Portable Filter Caddy
Hydraulic Oil Filter Inspection Procedure
Hydraulic System Warm-Up Procedure
JT02156A Digital Pressure _ Temperature Analyzer Installation
JT05800 Digital Thermometer Installation
Main Hydraulic Pump Residual and Compensator Valves Test and Adjustment (S.N.-200152)
Main Hydraulic Pump Residual and Compensator Valves Test and Adjustment (S.N. 200153-)
Secondary Steering Pump Residual and Compensator Valves Test and Adjustment-(Serial No. -200152)
Secondary Steering Pump Residual and Compensator Valves Test and Adjustment-(Serial No. 200153- )
Service Brake Valve Test
Steering Cylinder Leakage Test
Steering Load Sense Relief Valve Test and Adjustment
9031 - Heating and Air Conditioning
05 - Theory of Operation
Air Conditioner Compressor Operation
Condenser Operation
Evaporator Operation
Expansion Valve Operation
Heater and Air Conditioner Circuit Schematic
Heater and Air Conditioner Electrical Circuit Operation
Heater Core Operation
High _ Low Pressure Switch Operation
Proper R134a Refrigerant Handling
R134a Refrigerant Cautions
R134a Refrigerant Operation
Receiver-Dryer Operation
Temperature Control Operation
Thermocouple Operation
15 - Diagnostic Informtion
Diagnose Air Conditioner Malfunctions
Diagnose Heater System Malfunctions
Heater and Air Conditioner Component Location
20 - Adjustments
Air Conditioner Compressor Belt Tension Check and Adjustment
Charge R134a System
Compressor R134a Refrigerant Oil Removal
Evacuate R134a System
Flush R134a Air Conditioner System
Proper R134a Refrigerant Handling
Purge R134a Air Conditioner System
R134A Air Conditioner System Cleaning Procedures
R134a Refrigerant Cautions
R134a Refrigerant Oil Charge Check
R134a Refrigerant Oil Component Charge
R134a Refrigerant Operation
R134a Refrigerant Recovery, Recycling, and Charging Station Installation Procedure
Recover R134a System
25 - Tests
Leak Testing R134a Air Conditioner System
Operating Pressure Diagnostic Chart
Pressure Diagnostic Chart
Proper R134a Refrigerant Handling
R134a Air Conditioner System Test
R134a Refrigerant Cautions
Refrigerant Hoses And Tubing Inspection
Thermocouple Test
