Target Audience:
Professional mechanics, farm equipment technicians, and serious tractor owners/restorers.
Value Proposition:
Provides essential technical information for maintaining, diagnosing, and repairing the IH 1456 tractor, maximizing uptime and preserving value.
Comparison To Alternatives:
A dedicated service manual offers superior depth and accuracy compared to general repair guides or online forums.
Features:
Contains official IH service procedures, diagrams, and specifications.
Areas Covered:
Full service and repair instructions for IH 1456 Tractor
Page Count:
Estimated to be substantial, typical for a comprehensive service manual (specific number not provided)
Manual Type:
Service Repair Workshop Manual
Format:
Likely print or PDF (specific format not provided)
Engine System:
Detailed repair and overhaul procedures for the specified IH diesel engine.
Transmission System:
Coverage of transmission components, operation, maintenance, and repair.
Hydraulic System:
Information on the tractor's hydraulic system, including pumps, valves, and cylinders.
Electrical System:
Diagnosis and repair of the tractor's electrical system, including wiring diagrams.
Powertrain:
Includes final drives, differentials, and PTO components.
Chassis And Suspension:
Maintenance and repair of steering, brakes, and front axle components.
Operator Station:
Procedures related to the operator's console, controls, and comfort features.
Preventative Maintenance:
Scheduled maintenance tasks, lubrication charts, and inspection points.
Diagnostic Procedures:
Troubleshooting guides for identifying and resolving common problems.
Repair And Rebuild:
Step-by-step instructions for component disassembly, repair, and reassembly.
Adjustment Procedures:
Calibration and adjustment specifications for various systems.
Torque Specifications:
Precise torque values for critical fasteners.
Depth Of Coverage:
Comprehensive, suitable for professional mechanics and experienced users.
Diagnostic Capabilities:
Advanced diagnostic information for troubleshooting complex issues.
Rebuild Instructions:
Detailed rebuild procedures for major components like the engine and transmission.
File Format:
If digital, typically PDF; if print, bound document.
Print Quality:
Professional, with clear diagrams and legible text (assumed for service manuals).
Binding Type:
If printed, typically spiral-bound or perfect-bound for durability in a workshop environment.
Paper Type:
If printed, durable, often glossy or coated paper to resist oil and dirt.
Engine Model:
IH DT-407 Diesel (Commonly found in 1456)
Engine Type:
6-cylinder, naturally aspirated, direct injection diesel
Displacement:
407 cubic inches (6.67 Liters)
Horsepower Rating:
Approximately 107 PTO horsepower (varies slightly based on final spec)
Torque Rating:
Approximate peak torque around 250-260 lb-ft (specific rating varies)
Fuel Injection System:
Bosch inline injection pump (typical)
Cooling Type:
Water-cooled
Oil Type:
API CD or CE rated diesel engine oil, SAE 15W-40 recommended for most conditions (refer to manual for specific ranges)
Cylinder Head Design:
Overhead Valve (OHV)
Transmission Type:
16-speed Power Shift (2WD and MFWD configurations)
Optional Transmission:
Not commonly specified as optional for the 1456, Power Shift was the signature transmission.
Powershift Operation:
Electro-hydraulic control of gear changes without clutching.
Transmission Hydraulic Fluid:
IH Hy-Tran fluid (or equivalent UTF - Universal Tractor Transmission Fluid) is typically specified for powershift transmissions and hydraulics.
Gear Ratios:
Detailed gear ratios for all 16 forward and reverse speeds available in the manual.
Wheelbase:
Approximately 104 inches (264 cm) for 2WD models.
Length:
Around 150 inches (381 cm) overall length (without implements).
Width:
Varies by rear tire size, but typically around 70-80 inches (178-203 cm) at the rear axle.
Operating Weight:
Around 10,000 - 11,500 lbs (4,535 - 5,216 kg) depending on configuration.
Drawbar Horsepower:
Typically rated around 90-95 HP at the drawbar.
Towing Capacity:
Not officially rated by a single number, but designed for heavy farm implement towing.
Engine Oil Change:
Typically every 250 operating hours (refer to manual for exact hours and conditions).
Fuel Filter Replacement:
Recommended at engine oil change intervals or as needed based on fuel quality.
Air Filter Cleaning:
Check and clean pre-cleaner and element frequently, depending on operating conditions (e.g., every 100 hours).
Engine Oil Capacity:
Approximately 10-12 quarts (9.5-11.4 Liters) with filter change.
Hydraulic Fluid Capacity:
Approximately 16 gallons (60.6 Liters) for the combined transmission and hydraulic system.
Powershift Transmission Wear:
Wear in the powershift clutches and torque converter can occur with heavy use and improper maintenance. Overheating is a common cause.
Injection Pump Issues:
Wear or gumming of the diesel injection pump can lead to starting problems or loss of power.
Hydraulic Cylinder Leaks:
Seals in hydraulic cylinders can degrade over time, leading to leaks and reduced lift capacity.
Electrical Connection Corrosion:
Age-related corrosion in wiring harnesses and connectors can cause intermittent electrical faults.
Brand History:
International Harvester (IH) was a major American manufacturer of agricultural and construction equipment, known for robust and innovative machinery.
1456 Introduction:
The 1456 was part of the highly successful IH 06 and 56 series tractors, representing a significant step in power and technology for its time.
Production Years:
The 56 series, including the 1456, was produced primarily from 1963 to 1967.
Manufacturing Location:
Primarily manufactured at IH plants in the United States.
Industry Awards:
The 06/56 series, including the 1456, was highly regarded for its power, durability, and advanced features (like the Power Shift transmission) within its production era.
Performance Ratings:
Consistently rated highly for drawbar and PTO horsepower relative to its contemporaries.
Safety Certifications:
Referral to the manual for any specific safety certifications of the ROPS or other components, if applicable.
