Target User:
Farm owners, mechanics, agricultural technicians, and restoration enthusiasts.
Value Proposition:
Provides comprehensive technical guidance for maintaining and repairing a robust and classic farm tractor, empowering users to perform tasks independently.
Content Focus:
Detailed diagnostic procedures, repair instructions, and specifications for the IH 1456 tractor.
Usability:
Digital format allows for easy searching, printing of specific sections, and accessibility on various devices.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures.
Fuel System:
Detailed diagnostics, repair, and adjustment of the fuel injection system (e.g., DT-466 engine components).
Transmission Service:
Repair and maintenance of the transmission, including clutch, gearbox, and power take-off (PTO) systems.
Hydraulic System:
Troubleshooting, repair, and maintenance of the tractor's hydraulic pump, valves, cylinders, and associated components.
Electrical System:
Wiring diagrams, component testing, troubleshooting of the starting, charging, lighting, and instrumentation systems.
Cooling System:
Maintenance and repair of the radiator, thermostat, water pump, and cooling fan.
Braking System:
Service procedures for the brake pedal, master cylinder, brake lines, and wheel brakes.
Steering System:
Repair and maintenance of the steering column, linkages, and hydraulic power steering components.
Power Take Off Pto:
Service and repair of the PTO clutch and drive components.
Troubleshooting Charts:
Detailed diagnostic flowcharts for common problems across all major systems.
Routine Maintenance:
Step-by-step instructions for regular service tasks like oil changes, filter replacements, and lubrication.
Component Rebuilds:
Comprehensive rebuild procedures for major components like engines, transmissions, and hydraulic pumps.
Alignment Specifications:
Wheel alignment and track adjustment specifications where applicable.
Torque Specifications:
Essential torque values for critical fasteners throughout the tractor.
Diagnostics:
Advanced diagnostic procedures and testing methods for identifying faults.
Repair Techniques:
Detailed repair instructions, including special tool requirements and specific techniques.
Adjustment Procedures:
Precise adjustment procedures for various systems, such as clutch engagement or hydraulic pressures.
Searchability:
Searchable text for quick information retrieval.
Quality:
High-resolution scans of original documentation, ensuring clarity of text and diagrams.
Binding:
Not applicable (digital PDF format).
Paper:
Not applicable (digital PDF format).
Engine Model:
Typically equipped with an International Harvester DT-466 diesel engine.
Engine Type:
Direct Injection, Turbocharged Diesel
Displacement:
466 cubic inches (7.6 liters)
Horsepower Rating:
Approximately 145 PTO horsepower (rating can vary slightly by specific configuration and year).
Torque Rating:
Significant torque output for heavy draft work.
Injection Pump:
Bosch or CAV/Lucas fuel injection pump (specific type documented in manual).
Fuel Filter Replacement:
Procedures and specifications for fuel filter replacement.
Transmission Type:
Typically a 10-speed Power Shift (fully synchronized transmission with powershift capability).
Optional Transmission:
Some variations might have offered different synchronized transmissions or PTO options.
Powershift Operation:
Detailed explanation and service procedures for the powershift engagement and hydraulics.
Transmission Fluid Type:
Specifications for appropriate hydraulic/transmission fluid (e.g., IH Hy-Trans or equivalent).
Rollover Protection:
Manual likely covers safety features and recommended practices; ROPS (Roll-Over Protective Structure) installation and maintenance may be detailed.
Braking System Design:
Mechanical and hydraulic braking systems designed for safe operation under load.
Operator Station Ergonomics:
Information on control placement and operator visibility, crucial for safe operation.
Engine Oil Change:
Typically every 250-500 operating hours (refer to manual for precise interval and oil type).
Transmission Fluid Change:
Refer to manual; often around 1000-1200 hours or annually.
Hydraulic Filter Replacement:
Refer to manual; typically coincides with hydraulic fluid changes.
Engine Oil Grade:
API CD or CE rated diesel engine oil, viscosity usually 15W-40 or 10W-30 depending on ambient temperature. Manual specifies exact requirements.
Transmission Fluid Type:
IH Hy-Trans (or equivalent UTTO - Universal Tractor Transmission Oil) with specific performance characteristics for wet brakes and hydraulics.
Coolant Type:
Ethylene glycol based coolant with appropriate corrosion inhibitors for diesel engines.
Hydraulic System Leaks:
Common with age due to seal wear; manual provides diagnosis and seal replacement procedures.
Powershift Clutch Pack Wear:
Wear on powershift clutches can lead to slipping; manual details inspection and repair.
Fuel Injector Pump Maintenance:
Requires specialized knowledge for proper servicing; manual provides critical details.
Electrical System Corrosion:
Corrosion in connectors and wiring harnesses is common in older farm equipment; manual's diagrams are essential.
Manufacturer:
International Harvester (IH), a renowned American manufacturer of agricultural machinery.
Series:
Part of the highly regarded '56' series of tractors, known for their power and durability.
Production Era:
Mid to late 1960s, replacing earlier models and bridging the gap to later generations.
Notable Innovations:
The 1456 was often equipped with advanced features for its time, including the powerful DT-466 engine and the Power Shift transmission.
