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Introduction
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Market Position
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Tractor Segment:
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Utility Tractor, designed for a wide range of agricultural tasks, hay production, property maintenance, and light construction.
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Competitive Analysis
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Key Competitors:
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John Deere (e.g., 5E Series), Kubota (e.g., M Series), Massey Ferguson (e.g., 4700 Series), Mahindra (e.g., 6000 Series).
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Key Features
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Supersteer Front Axle:
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The SuperSTEER™ front axle provides superior maneuverability with a tighter turning radius, crucial for navigating tight fields and working around obstacles.
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Engine Power:
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Delivers robust power for demanding tasks, suitable for PTO-driven implements and heavy draft work.
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Versatility:
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Designed for versatility, supporting a wide array of implements through its hydraulic system, PTO, and hitch capabilities.
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Manual Coverage
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Systems Covered
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Engine Components:
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Cylinder block, cylinder head, pistons, connecting rods, crankshaft, camshaft, valve train, fuel injection system, lubrication system, cooling system, intake and exhaust manifolds, engine mounting.
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Transmission Components:
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Gearbox assembly, clutch, PTO (Power Take-Off) components, differential, final drives, transmission controls, transmission oil pump and filter.
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Hydraulic Components:
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Hydraulic pump, hydraulic valves, cylinders, hoses, fittings, hydraulic reservoir, filters, power steering components, hitch control components.
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Chassis And Frame:
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Front axle (including SuperSTEER components), rear axle, steering system components, brakes (front and rear), wheel hubs, steering knuckles, drawbar, fenders, weights.
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Electrical System:
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Starter motor, alternator, battery, wiring harnesses, lighting system, sensors, switches, fuses, relays, instrument panel components, PTO engagement switch.
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Operator Station:
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Seat assembly, steering column, pedals, levers, controls (throttle, transmission shifter, hydraulic controls, PTO controls), ROPS (Roll Over Protective Structure), dashboard, cab components (if applicable).
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Attachment Mounting Points:
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Front hitch components (if equipped), rear hitch components, hydraulic couplers, PTO shaft, mounting brackets for front loaders, mowers, etc.
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Procedures Included
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Identification Of Parts:
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Detailed breakdown of every part with corresponding part numbers and illustrations for accurate identification and ordering.
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Parts Ordering Guidance:
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Facilitates correct part ordering by providing precise part numbers, ensuring compatibility and preventing errors.
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Assembly And Disassembly Visuals:
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Exploded views and breakdowns offer visual guidance for understanding component relationships during maintenance or repair.
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Technical Depth
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Parts Catalog Scope:
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Comprehensive, detailing every user-replaceable component and assembly for the New Holland TN75S SuperSTEER tractor.
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Engine Specifications
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Primary Engine
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Engine Manufacturer:
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New Holland (likely manufactured by Fiat Powertrain Technologies - FPT)
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Engine Model:
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Likely a 3.9L or 4.5L naturally aspirated or turbocharged diesel engine, common in this class of tractor.
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Engine Type:
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4-stroke, direct injection diesel engine.
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Displacement:
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Approximately 3.9 Liters (238 cubic inches) or 4.5 Liters (274 cubic inches) depending on specific engine variant for the TN75S.
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Performance
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Rated Power Hp:
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Typically around 75 engine horsepower (HP). PTO horsepower would be slightly lower.
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Peak Torque:
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Specific torque figures vary, but expect figures in the range of 200-250 lb-ft for this engine class.
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Fuel System
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Fuel Type:
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Diesel Fuel
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Injection System:
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Mechanical or Electronic Fuel Injection (depending on exact year and emissions standards).
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Fuel Filter Part Number:
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Requires specific New Holland part number (e.g., 84437524 for some diesel filters).
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Transmission
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Standard
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Transmission Type:
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Typically a 12x12 PowerShuttle or 16x16 Electro-Shift transmission, offering manual and power-assisted shifting for forward and reverse.
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Optional
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Optional Transmission:
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Could include different gear ratios or shuttle options depending on regional variations and specific configurations.
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Features
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Powershuttle Lever:
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Integrated lever on the steering column for smooth directional changes without clutching.
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Pto Speeds:
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Standard PTO speeds typically include 540/1000 RPM, with potential for ground speed PTO.
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Fluid Requirements
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Transmission Fluid Type:
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NH 134 Hydraulic/Transmission Oil or equivalent SAE 20W-30 tractor hydraulic fluid.
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Transmission Fluid Capacity:
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Approximately 10-12 gallons (38-45 liters) for the transmission and hydraulic system combined.
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Maintenance
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Service Intervals
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Engine Oil Change Interval:
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Typically every 250 operating hours, or annually, whichever comes first.
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Hydraulic Oil Change Interval:
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Typically every 1000 operating hours or annually.
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Air Filter Service:
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Inspect daily and replace as needed based on operating conditions, typically every 500 hours.
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Fuel Filter Replacement:
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Typically every 500 operating hours.
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Fluid Specifications
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Engine Oil Specification:
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API CG-4 or CH-4, SAE 15W-40 or 10W-30 viscosity grade, depending on ambient temperature.
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Coolant Type:
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Ethylene glycol-based coolant with a 50/50 mix of antifreeze and distilled water.
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Known Issues
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Hydraulic Leaks:
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Potential for hydraulic hose or seal leaks, especially with age and high-pressure applications. Requires careful inspection and replacement of specific parts identified in the manual.
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Electrical Connector Corrosion:
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In humid or corrosive environments, electrical connectors can corrode, leading to intermittent faults. The parts manual helps in identifying and replacing specific connectors.
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Pto Clutch Wear:
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Heavy use of the PTO can lead to clutch pack wear over time, requiring replacement of specific clutch components.
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