Target Audience:
Owners, mechanics, and technicians working on IH International Harvester 2756 tractors.
Value Proposition:
Provides essential technical data for effective maintenance, repair, and troubleshooting, reducing downtime and repair costs.
Diagnostic Focus:
Emphasis on systematic troubleshooting guides for efficient problem diagnosis.
Repair Accuracy:
Detailed procedures and specifications ensure repairs are performed correctly to factory standards.
Engine:
Detailed overhaul, repair, and troubleshooting of the tractor's internal combustion engine.
Transmission:
Service and repair procedures for the gearbox, clutch, and final drive assemblies.
Hydraulic System:
Coverage of the hydraulic pump, cylinders, control valves, and associated components.
Electrical System:
Wiring diagrams, component testing, and troubleshooting for starting, charging, lighting, and instrument systems.
Cooling System:
Maintenance and repair of the radiator, thermostat, water pump, and fan.
Fuel System:
Servicing of fuel injectors, pumps, filters, and troubleshooting fuel delivery issues.
Braking System:
Maintenance and repair of the tractor's braking mechanisms, including parking brake.
Steering System:
Service and repair for both mechanical and power steering components.
Power Takeoff Pto:
Repair and adjustment of the PTO engagement and drive components.
Chassis And Frame:
Procedures for inspecting and repairing the main frame, axles, and suspension.
Operator Station:
Service related to the operator's seat, controls, and dashboard.
Routine Maintenance:
Scheduled maintenance, fluid changes, lubrication, filter replacements, and inspections.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common and complex issues.
Component Overhaul:
Step-by-step instructions for complete disassembly, inspection, repair, and reassembly of major components.
Alignment And Adjustment:
Procedures for adjusting clutch, brakes, PTO, and engine components to factory specifications.
Special Tool Requirements:
Identification and usage instructions for specialized tools needed for specific repair tasks.
Depth:
In-depth, covering everything from basic user maintenance to full engine and transmission rebuilds.
Diagnostic Capabilities:
Advanced diagnostics for engine performance, hydraulic system faults, and electrical issues.
Specification Details:
Includes torque specifications, clearances, timing settings, and fluid capacities.
Engine Model:
Typically fitted with International Harvester's D-series diesel engines (e.g., D-236, D-263, DT-263).
Engine Type:
Direct Injection Diesel, 4-stroke cycle.
Displacement:
Approximately 236-263 cubic inches (3.86 - 4.31 liters) depending on specific engine variant.
Horsepower Range:
Rated horsepower typically ranges from 60-80 PTO horsepower, varying with engine and transmission configuration.
Torque:
Specifications for torque output will be detailed in the manual for the specific engine variant.
Injection Type:
Direct injection, typically utilizing a Bosch or Roosa Master rotary or in-line injection pump.
Gearbox Type:
Often equipped with a 8-speed or 16-speed transmission (e.g., Synchro-Range or Power Shift).
Power Takeoff Pto Options:
Typically a 540/1000 RPM PTO, depending on configuration.
Clutch Type:
Dry, dual-stage clutch for transmission and PTO operation.
Differential Lock:
Rear differential lock for enhanced traction.
Engine Oil Change:
Typically every 100-250 operating hours, depending on operating conditions and oil specification.
Fuel Filter Replacement:
Recommended at regular intervals, often tied to oil change intervals or as needed based on fuel quality.
Air Filter Service:
Service based on operating conditions; replacement or cleaning of the element.
Engine Oil:
API CD or CE rated diesel engine oil, viscosity typically SAE 15W-40 or 10W-30 for colder climates. Capacity varies by engine, often around 8-10 quarts.
Transmission Hydraulic Fluid:
IH Hy-Tran fluid or equivalent is commonly specified. Capacity will be detailed for transmission and hydraulics.
Coolant:
Ethylene glycol-based antifreeze mixture, typically 50/50 with distilled water. Capacity varies.
Engine Wear:
Common wear items include piston rings, cylinder liners, valve seats, and injection pump components.
Hydraulic System:
Potential issues with hydraulic pump wear, control valve leaks, and cylinder seal failures.
Electrical System:
Aging wiring harnesses, corroded connections, and alternator or starter motor failures.
Transmission Wear:
Wear in gears, bearings, or synchronizers, especially with heavy use or improper lubrication.
