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Introduction
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Market Position
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Market Position:
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The New Holland TN55 Ag Tractor is positioned as a versatile utility tractor suitable for a range of agricultural, horticultural, and landscaping tasks. It targets small to medium-sized farms and property owners seeking reliable performance and functionality.
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Competitive Analysis
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Competitive Analysis:
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Competes with similar utility tractors from manufacturers like John Deere (e.g., 5 Series), Mahindra (e.g., 4500 Series), Kubota (e.g., M Series), and Massey Ferguson. Key selling points often include ease of use, powertrain options, and a robust hydraulic system.
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Key Features
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Key Features:
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Known for its compact yet powerful design, efficient engine, reliable transmission options (often including powershift or shuttle shift), and strong hydraulic capabilities for operating various implements.
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Manual Coverage
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Systems Covered
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Engine Assembly:
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Detailed breakdown of engine components, including cylinder block, head, pistons, crankshaft, camshaft, valve train, cooling system, lubrication system, and fuel system.
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Transmission And Drivetrain:
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Exploded views of transmission gears, shafts, clutch assembly, differential, axles, and PTO components.
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Hydraulic System:
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Components of the hydraulic pump, control valve, lift arms, hydraulic cylinders, hoses, and fittings.
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Chassis And Frame:
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Front axle, rear axle housing, frame components, hitch assembly, and ballast weights.
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Electrical System:
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Wiring harnesses, starter motor, alternator, battery, lighting, instrument panel, and control switches.
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Operator Station:
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Seat assembly, steering column, dashboard, controls, fenders, and ROPS (Roll Over Protective Structure).
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Attachments And Implements Interface:
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Components related to the rear hitch, drawbar, and power take-off (PTO) connections for implements.
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Procedures Included
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Part Identification:
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Identification of all individual parts with corresponding part numbers and descriptive names.
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Assembly And Disassembly:
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Visual guidance through exploded views for understanding component relationships during assembly or disassembly.
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Service And Replacement:
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Facilitates ordering correct replacement parts for maintenance and repair activities.
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Fasteners And Hardware:
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Detailed listings and diagrams for all bolts, nuts, washers, pins, clips, and other fasteners used throughout the tractor's construction.
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Technical Depth
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Technical Depth:
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Comprehensive parts referencing for all mechanical, electrical, and hydraulic systems. Focuses on part numbers and identification, not repair procedures or diagnostics.
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Manual Specifications
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File Format
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File Format:
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PDF (Portable Document Format)
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Print Quality
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Print Quality:
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High-resolution digital scans suitable for on-screen viewing and printing. Ensures clarity of illustrations and text.
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Binding Type
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Binding Type:
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N/A (Digital Download)
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Paper Type
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Paper Type:
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N/A (Digital Download)
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Searchability
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Searchability:
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Likely text-searchable PDF, allowing users to quickly find specific part numbers or descriptions.
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Completeness
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Manual Completeness:
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This is a Master Illustrated Parts List, meaning it is designed to be comprehensive, covering all factory-supplied parts for the specified model(s). It is the essential reference for ordering replacements.
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Indexing
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Indexing Method:
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Typically indexed by system (engine, transmission, hydraulics, etc.) and then by sub-assembly, with cross-referencing for part numbers and descriptions.
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Engine Specifications
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Primary Engine
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Engine Model:
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Typically powered by a New Holland (or re-badged Shibaura/Iveco) 3-cylinder diesel engine. Specific engine model designation (e.g., 8030, SOFIM) would be detailed in the manual.
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Performance
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Horsepower Rating:
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Rated approximately 55 HP (gross). Actual PTO horsepower would be lower and detailed in supplemental service manuals.
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Torque Curve:
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Detailed torque and horsepower curves are typically found in service or technical manuals, not parts lists. This parts manual will list engine internal components.
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Fuel System
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Fuel Injection Type:
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Likely direct injection, possibly with mechanical or electronic fuel pump depending on the specific sub-model and production year.
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Cooling System
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Cooling System Type:
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Pressurized liquid cooling system with a radiator, fan, and thermostat. Components like hoses, water pump, and radiator will have part numbers listed.
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Lubrication System
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Lubrication System Type:
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Forced lubrication system with a wet sump, oil pump, oil filter, and oil cooler (if equipped). The manual will list oil pump components, filter part numbers, and gaskets.
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Engine Model Details
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Engine Displacement:
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Typically around 1.8 to 2.2 liters, depending on the specific engine variant. The manual will list bore and stroke if these are part of engine component breakdowns.
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Transmission
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Standard
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Transmission Type Standard:
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Likely a 12x12 or 16x16 Mechanical Shuttle or Synchro Shuttle transmission. Specific gear sets, synchronizers, and shift forks will be itemized.
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Optional
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Transmission Type Optional:
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Some models might have offered a 20x20 or specific powershift options. This would depend on the exact sub-model and market.
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Features
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Pto Options:
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Standard 540 RPM PTO, with potential for 540/1000 RPM PTO or ground-speed PTO as options. PTO drive shafts, gears, and engagement mechanisms will be listed.
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Clutch Type:
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Dual-stage clutch for PTO engagement and transmission operation. Clutch disc, pressure plate, and release bearing part numbers will be present.
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Differential And Axles
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Differential Type:
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Planetary or spur gear differential. Axle shafts, bearings, and seals will be itemized.
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Safety Features
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Ratings
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Rops Certification:
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ROPS (Roll Over Protective Structure) is typically standard or an option, compliant with relevant agricultural safety standards. Structural components of ROPS will have part numbers.
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Active Features
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Braking System:
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Wet disc brakes, providing reliable stopping power. Brake caliper, disc, pad, and master cylinder components will be listed.
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Passive Features
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Seatbelt:
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Seatbelt assembly for operator safety, especially when equipped with a ROPS. Seatbelt anchor points and hardware will be present in the manual.
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Lighting:
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Headlights, taillights, and work lights are crucial for visibility and safety. Bulbs, lenses, and housings will be itemized.
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Maintenance
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Service Intervals
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Engine Oil Change:
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Typically every 250 hours or annually. Filter part numbers (e.g., for oil, fuel, air) are critical and found in this manual.
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Transmission Fluid Change:
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Varies by transmission type, generally every 500-1000 hours. Hydraulic/transmission filter replacement is also critical.
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Fluid Specifications
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Engine Oil Type:
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Typically API CG-4 or CH-4 rated diesel engine oil, SAE 15W-40 or 10W-30 depending on climate. The manual will list exact specifications and capacities.
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Hydraulic Fluid Type:
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Universal Tractor Transmission Oil (UTTO) or ISO VG 46 hydraulic fluid. Specific part numbers for filters and O-rings are crucial.
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Coolant Type:
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Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. The manual will list correct coolant types and capacities.
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Known Issues
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Common Issues General:
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While this manual is for parts, common wear items for this series can include clutch wear, hydraulic pump output, PTO clutch engagement, and radiator leaks. Identifying the correct replacement parts is key.
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Part Obsolescence:
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For older models, certain parts may be obsolete or superseded. This parts manual will provide the latest available part numbers or indicate supersessions where applicable.
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Filter Part Numbers
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Oil Filter Part Number:
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Example: Part number XXXXXXXX (specific number would be in the manual).
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Fuel Filter Part Number:
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Example: Part number YYYYYYYY (specific number would be in the manual).
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Air Filter Part Number:
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Example: Part number ZZZZZZZZ (specific number would be in the manual).
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