Target User:
Tractor owners, mechanics, service technicians, and restoration enthusiasts.
Value Proposition:
Provides essential technical information for maintaining, repairing, and troubleshooting the IH 1456 tractor, enabling cost-effective upkeep and maximizing operational life.
Manual Quality:
Professional-grade workshop manual, offering a higher level of detail than basic owner's manuals.
Diagnostic Tools:
Includes information that would guide the use of specific diagnostic tools and procedures for the era.
Part Identification:
Likely contains diagrams and descriptions aiding in the identification of service parts, though a dedicated parts catalog would be more comprehensive.
Coverage Scope:
All aspects of service, maintenance, and troubleshooting for the IH 1456 Tractor.
Estimated Page Count:
Comprehensive (exact page count not specified in product data, but implies a full workshop manual).
Manual Type:
Workshop Repair Service Manual
Format:
Digital Download (PDF)
Engine Systems:
Engine overhaul, fuel system, lubrication system, cooling system, ignition system (if applicable), exhaust system.
Drivetrain Systems:
Clutch, transmission (gearbox, powershift), differential, final drives, PTO (Power Take-Off).
Hydraulic Systems:
Hydraulic pump, control valves, cylinders, remote hydraulics, hitch control.
Electrical Systems:
Wiring diagrams, starter, alternator, battery, lighting, instrument panel.
Chassis Systems:
Steering, front axle, rear axle, brakes, chassis frame.
Operator Station:
Controls, instrumentation, seating, safety features.
Maintenance Procedures:
Lubrication, filter changes, fluid level checks, greasing points, routine inspections.
Repair Procedures:
Engine rebuild, transmission overhaul, hydraulic system repair, brake service, component replacement.
Troubleshooting Guides:
Diagnostic charts, symptom-based troubleshooting, common problem identification and solutions.
Adjustment Procedures:
Clutch adjustment, brake adjustment, PTO engagement, hydraulic control settings.
Diagnostic Capabilities:
Advanced diagnostics for all major systems, including hydraulic pressure testing and electrical circuit tracing.
Rebuild Instructions:
Detailed step-by-step instructions for complete engine, transmission, and hydraulic pump rebuilds with specifications.
Torquespecifications:
Comprehensive list of torque specifications for all critical fasteners across all systems.
Clearances:
Precise service limits and clearances for engine components, transmission gears, and hydraulic parts.
Wiring Diagrams:
Detailed electrical wiring schematics for all tractor configurations and options.
Engine Model:
IH DT-466 (Diesel)
Engine Type:
Inline 6-cylinder, direct-injection, turbocharged diesel
Displacement:
466 cubic inches (7.6 Liters)
Horsepower Rated:
Approximately 115-130 PTO horsepower (depending on specific configuration and year).
Torque Rated:
Significant torque output, characteristic of the DT-466, crucial for heavy draft work.
Fuel Injection System:
Roosa Master or Simms fuel injection pump (specific to production run).
Cooling Type:
Pressurized liquid cooling system with fan.
Transmission Type:
IH 16-Speed Power-Shift Transmission (also known as Torque Amplifier or TA)
Transmission Options:
Standard manual transmission was also an option on some configurations, though less common on the 1456.
Powershift Operation:
Allows on-the-go shifting between gear sets without using the clutch pedal for certain ranges.
Transmission Fluid Type:
IH HyTran (or equivalent premium tractor hydraulic fluid).
Wheelbase:
Approximately 98-104 inches (varies slightly by configuration).
Operating Weight:
Around 11,000 - 13,000 lbs (5,000 - 5,900 kg), depending on options and ballast.
Drawbar Pull Capacity:
High, suitable for heavy tillage operations.
Rollover Protection:
ROPS (Roll-Over Protective Structure) was an optional or dealer-installed feature, crucial for operator safety.
Braking System:
Hydraulically actuated, wet disc brakes for reliable stopping power.
Operator Station Design:
Designed for operator comfort and control, with safety guards on PTO and other moving parts.
Engine Oil Change:
Typically every 100-150 hours of operation (refer to manual for precise interval).
Hydraulic Fluid Change:
Generally every 500-1000 hours of operation.
Engine Oil Specification:
API CD or CE rated diesel engine oil, viscosity typically 15W-40 or 10W-30 depending on climate.
Coolant Type:
Ethylene glycol-based antifreeze mixed with distilled water, typically a 50/50 mix.
Powershift Clutch Wear:
Wear on the Power-Shift clutch packs can lead to reduced performance or engagement issues. Manual covers inspection and repair.
Hydraulic Pump Wear:
Wear on the hydraulic pump can cause slow or weak operation of implement controls and PTO. Troubleshooting and rebuild procedures covered.
Diesel Injection Pump Maintenance:
Proper adjustment and maintenance of the Roosa Master or Simms injection pump are critical for engine performance and longevity. Manual provides detailed procedures.
Turbocharger Maintenance:
Regular inspection and lubrication of the turbocharger are recommended to prevent premature failure. Manual covers servicing.
Brand Legacy:
International Harvester (IH) was a major American manufacturer of agricultural and construction equipment with a long and storied history dating back to the early 20th century.
Series Placement:
Part of the highly successful 06 and 56 series tractors, known for their robust construction and powerful IH DT-407 and DT-466 engines.
Predecessor:
Directly succeeded models like the 806 and 1206, incorporating advancements in engine technology and transmission options.
Production Period:
Produced from approximately 1969 to 1971/1972.
Manufacturing Location:
Primarily manufactured in the USA.
