Engine Overview:
Detailed breakdown of engine components, including cylinder head, block, crankshaft, pistons, connecting rods, camshafts, and valve train.
Engine Maintenance:
Routine maintenance procedures such as oil changes, filter replacements, spark plug (if applicable) adjustments, and valve lash adjustments.
Fuel System Operation:
In-depth coverage of the fuel injection or carburetion system, fuel pump, filters, and lines for optimal performance and troubleshooting.
Cooling System Servicing:
Procedures for radiator, water pump, thermostat, hoses, and fan maintenance and repair.
Lubrication System:
Details on oil pump, oil filter, oil galleries, and lubrication maintenance schedules.
Transmission Repair:
Comprehensive instructions for servicing and repairing the transmission, including gear sets, clutches, and seals.
Drivetrain Components:
Coverage of rear axle, differential, drive shafts, and PTO (Power Take-Off) components.
Hydraulic System Troubleshooting:
Diagnosis and repair of hydraulic pump, cylinders, valves, and control systems for implement operation.
Electrical Diagnostics:
Wiring diagrams, troubleshooting guides for the starter, alternator, battery, lighting, and instrument panel.
Braking System Service:
Maintenance and repair of brake pedals, master cylinders, brake lines, and brake mechanisms.
Steering System Adjustment:
Procedures for servicing steering gears, tie rods, and related components.
Operator Station Components:
Maintenance for seat, controls, fenders, and dashboard elements.
Scheduled Maintenance:
Detailed maintenance schedules and procedures for various operating hours and conditions.
Component Overhaul:
Step-by-step instructions for the complete disassembly, inspection, repair, and reassembly of major components.
Diagnostic Flowcharts:
Logical troubleshooting sequences to quickly identify and resolve common and uncommon problems.
Precision Adjustments:
Guidance on critical adjustments such as valve clearance, timing, and hydraulic pressures.
Lubrication Guidelines:
Specific recommendations for lubricant types, grades, and capacities for all service points.
Wiring Diagrams:
Comprehensive electrical schematics for accurate diagnosis and repair of the tractor's electrical system.
Tool Requirements:
Lists of special tools and equipment required for specific repair procedures.
Depth:
Comprehensive, suitable for professional mechanics and experienced DIY users.
Diagnostic Capabilities:
Enables advanced troubleshooting and diagnosis of complex mechanical and electrical issues.
Repair Scope:
Covers everything from routine maintenance to complete engine, transmission, and hydraulic system rebuilds.
Engine Model:
Typically featured International Harvester's own diesel engines, commonly the D-series or DT-series.
Engine Type:
Direct Injection Diesel
Displacement:
Approximately 360 cubic inches (5.9 Liters) for some variants.
Bore X Stroke:
Specific dimensions detailed in manual, but typically around 4.00 x 4.75 inches.
Horsepower Rated:
Around 90-100 PTO horsepower, with variations depending on specific engine tune and configuration.
Torque Peak:
Significant torque output crucial for heavy draft work.
Injection System:
Bosch or IH proprietary direct injection system.
Engine Oil Change:
Typically every 100-250 operating hours, depending on operating conditions and oil type (refer to manual for exact spec).
Fuel Filter Replacement:
Recommended at regular intervals, often with oil changes or as needed based on fuel quality.
Hydraulic Fluid Change:
Typically every 500-1000 operating hours.
Air Filter Cleaning Replacement:
Check and clean/replace as per hour meter readings or visual inspection, critical for diesel engine longevity.
Engine Oil Type:
API CD or CE rated diesel engine oil, SAE 15W-40 or 10W-30 depending on climate (refer to manual).
Hydraulic Fluid Type:
IH Hy-Trans fluid or equivalent (e.g., TDH - Tractor Drive Hydraulic fluid), specifications detailed in manual.
Transmission Fluid Type:
Often shared with hydraulic system fluid (Hy-Trans).
Coolant Type:
Ethylene glycol based antifreeze mixture with a 50/50 concentration for freeze and corrosion protection.
Common Wear Points:
Wear in transmission synchronizers, hydraulic pump and valve wear, front axle pivot wear, and injection pump issues can occur with age and high usage.
Electrical Reliability:
Older electrical systems can experience issues with wiring degradation, faulty switches, and starter/alternator wear.
Engine Sealing:
Gasket and seal deterioration leading to oil or coolant leaks is common on vintage machinery.
Company Legacy:
International Harvester (IH) was a major American manufacturer of agricultural and construction machinery, trucks, and other equipment, known for its agricultural innovations.
Series Placement:
The 2806 was part of IH's 06 series, representing a step up in power and features from earlier models, bridging the gap to larger row-crop tractors.
Production Years:
Produced primarily in the late 1960s and early 1970s.
Manufacturing Locations:
Primarily manufactured at IH's agricultural equipment plants in the United States.
