Market Position:
Mid-range axial-flow combine harvesters designed for various crop types
Key Features:
Robust construction, axial-flow separation technology, powerful performance for its class
Manual Purpose:
To provide technicians and owners with the necessary information to perform maintenance, troubleshooting, and repair on the New Holland TR75 and TR85 combines.
Competitive Landscape:
Competed with other major agricultural manufacturers offering axial-flow and conventional combines in the mid-size to large-scale farming segment.
Target Audience:
Farm owners, mechanics, service technicians, and maintenance personnel working with New Holland TR75 and TR85 combines.
Manual Highlights:
This manual is an essential resource for maintaining the operational efficiency and longevity of New Holland TR75/TR85 combines, covering all aspects from routine checks to major overhauls.
Systems Covered:
Feeder house, Header drive, Engine PTO shaft, Separator clutch, Main shaft, Rotor drive, Rotor gearboxes, Rotors, Concaves, Separator grates, Discharge beater grate, Cleaning system, Loading and unloading systems, Standard traction drive, Ground drive transmission, Traction clutch system, Clutch hydraulic actuation system, Brake system, Final drive (26" and 32" wheels), Hydrostatic system, Powered rear axle, Hydraulic system, Electrical system
Procedures Included:
Disassembly, Assembly, Inspection, Adjustment, Troubleshooting, Repair, Replacement of components and systems
Technical Depth:
Detailed diagnostic procedures, component-level repair, overhaul instructions, specifications and tolerances
Troubleshooting Procedures:
Includes systematic diagnostic trees and fault finding procedures for all major systems, aiding in identifying and resolving operational issues.
Technical Data Provided:
Includes detailed specifications, tolerances, torque values for fasteners, fluid capacities, and electrical schematics.
Specific System Coverage Detail:
Detailed breakdown of the entire harvesting process from feeder to grain handling, including drive systems and operator controls.
Diagnostic Tools Covered:
Information on identifying potential issues through visual inspection, listening for unusual sounds, and understanding system behaviors. May include guidance on using basic diagnostic tools if applicable.
Schematics Included:
Likely includes detailed hydraulic schematics and electrical wiring diagrams to aid in troubleshooting and repair.
Rebuild Procedures:
Detailed procedures for overhauling major components such as the rotor, gearboxes, transmission, and hydraulic pumps would be present.
Calibration Procedures:
Procedures for calibrating sensors, hydraulic flow rates, and machine settings for optimal performance.
Electrical Diagnostics:
Comprehensive electrical system coverage including wiring diagrams, component testing, and troubleshooting for sensors, actuators, and control units.
Hydraulic Diagnostics:
Detailed procedures for testing hydraulic pressures, diagnosing pump and valve issues, and repairing hydraulic cylinders and motors.
Component Identification:
Detailed diagrams and descriptions to identify all major and minor components of the combine.
Troubleshooting Charts:
Organized tables that correlate symptoms to potential causes and recommended repair actions.
Torque Specifications Detail:
Includes 'STANDARD TIGHTENING TORQUE' and specific torque values for critical fasteners throughout the machine, ensuring proper assembly and preventing component failure.
Labor Guide Inclusion:
The inclusion of a 'LABOR GUIDE' (page 438) suggests estimated labor times for various repair procedures, useful for service planning and cost estimation.
Conversion Charts Availability:
The 'TORQUE AND CONVERSION CHARTS' (page 433) provide useful reference data for translating between different measurement units commonly used in mechanical and engineering contexts.
System Interaction Explanation:
Explains how different systems (e.g., hydraulic, electrical, mechanical drives) interact to ensure proper functioning of the combine.
Operator Interface Controls:
While primarily a repair manual, it may touch upon the function of operator controls as they relate to system operation and troubleshooting.
Harvesting Components Detail:
In-depth coverage of the threshing and separation components, including rotor adjustments, concave settings, and cleaning shoe maintenance.
Primary Engine:
Engine details not explicitly provided in the product description. Typically would include manufacturer (e.g., Ford-New Holland, Cummins, etc.), displacement, horsepower, and torque ratings, but these are found within the manual's 'Engine' or 'Specifications' sections.
Fuel System Details:
Details on fuel delivery, filtration, and potentially injection system maintenance (if applicable to the engine used in these models) would be found within the engine section.
Engine Performance Specs:
While specific figures (HP, torque) are not in the product title, the manual will detail expected performance parameters and how to maintain them.
Cooling System Maintenance:
Information on radiator service, coolant type and capacity, and thermostat replacement would be detailed.
Service Intervals:
The manual would detail scheduled maintenance intervals for engine oil, hydraulic fluid, filters, lubrication points, belt tensioning, and rotor/concave adjustments based on operating hours and seasons. Specific intervals are within the manual's 'General Information' and specific system sections.
Fluid Specifications:
The manual specifies required lubricants, hydraulic fluids, engine oils, and coolant types, along with their respective capacities for all systems (engine, transmission, hydraulics, final drives, etc.).
Common Issues:
While not listed, typical issues for combines of this era and design might include wear on rotor bearings, concaves, cleaning sieves, hydraulic pump performance, and electrical connections. The manual's troubleshooting sections would address these.
Lubrication Points:
Extensive lubrication schedule detailing grease points, bearing lubrication, and specific grease types for various components like rotor bearings, feeder house chains, and drive shafts.
Common Adjustments:
Includes procedures for adjusting belt tension, concave clearance, rotor speed, fan speed for cleaning, and brake adjustments.
Filter Part Numbers:
The manual would typically list OEM or equivalent part numbers for essential filters (oil, fuel, hydraulic, air) for the engine and hydraulic systems.
Cleaning Procedures:
Instructions on how to properly clean the combine after harvest, including the threshing components, grain tank, and chassis.
Tire Specifications:
The manual would include recommended tire sizes, inflation pressures, and potentially guidance on wheel bolt torques for front and rear axles.
