🏷️ Basic Information Identification Make: Zetor Model: 25 Model Variants: 25A, 25K Product Type: Spare Parts Catalogue Manual Generation Production Period: Late 1940s - Early 1950s (estimated) 👋 Introduction Market Position Historical Context: The Zetor 25 series represented a significant step in post-war Czechoslovakian agricultural machinery, aiming to provide a robust and affordable tractor for widespread use in farming. Competitive Analysis Contemporaries: Competed with other European tractor manufacturers of the era, offering a utilitarian and mechanically straightforward design. Key Features Manual Value Proposition: Essential for identifying and ordering correct replacement parts for Zetor 25, 25A, and 25K models, ensuring proper maintenance and repair. Manual Purpose: To provide Zetor 25 series owners and technicians with an accurate and comprehensive guide for identifying and sourcing all original replacement parts, ensuring authenticity and proper fitment. 📋 Manual Details Coverage Areas Language: Likely Czech or English (based on historical context of Zetor manuals for export) Variants Covered: Specifically covers Zetor 25, 25A, and 25K models. Differences between these variants in terms of parts will be clearly indicated. Page Count Pages: Not specified in product description, but typical for a parts catalog of this era would be 100-300 pages. Manual Type Type: Spare Parts Catalogue Format Format: Likely Printed (original), PDF (digital reproduction) Searchability: If a PDF, it's likely to be text-searchable if scanned with OCR, significantly enhancing usability. 📖 Manual Coverage Systems Covered Major Systems: Engine, Fuel System, Cooling System, Lubrication System, Clutch, Transmission, Rear Axle, Power Take-Off (PTO), Hydraulics (if applicable to variants), Steering, Front Axle, Brakes, Electrical System, Chassis, Bodywork, Wheels and Tires, Accessories. Wheel And Tire Components: Details for wheels, rims, tires, hubs, and associated hardware. Chassis And Frame: Parts for the main frame, drawbar, fenders, and other structural components. Accessories And Attachments: May include parts for factory-fitted accessories or common attachments like belt pulleys or linkage systems. Procedures Included Parts Identification: Detailed listing of all replaceable parts with part numbers, descriptions, and often exploded diagrams. Assembly Disassembly: Diagrammatic representation of how components are assembled and disassembled, crucial for part identification and ordering. Technical Depth Level Of Detail: Highly detailed for parts identification, cross-referencing, and procurement. It will not contain repair procedures or diagnostic steps, which are typically found in a Service or Workshop Manual. Parts Numbering Part Numbering System: Utilizes a unique Zetor part numbering system, critical for accurate ordering. The manual will list these numbers. Diagrams Exploded Views: Crucial exploded diagrams for every major assembly, showing part relationships and quantities. Cross References Interchangeability: May include cross-references to superseded or alternative parts. 📊 Manual Specifications File Format Digital Format: PDF (assuming a digital reproduction for sale) Print Quality Quality Of Reproduction: Assumed to be good quality digital reproduction suitable for clear viewing of diagrams and text. Binding Type Binding Style: N/A (for digital format). If printed, likely bound for durability. Paper Type Paper Quality: N/A (for digital format). Original manuals often used durable paper for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Model: Zetor Z 25 (likely a variant of the Zetor 2500 diesel engine family) Performance Horsepower: Approximately 26-30 HP (DIN) at rated RPM. Torque: Specific torque figures for this early model are less commonly published but indicative of its intended use. Fuel System Fuel Type: Diesel Injection System: Mechanical injection, likely Bosch or similar European manufacturer of the era. Cooling System Cooling Method: Water-cooled Lubrication System Oil Type: Typical engine oil of the era (e.g., SAE 30, SAE 10W-30 depending on climate). Engine Layout Cylinder Configuration: Inline 2-cylinder Displacement: Approximately 1800 - 2000 cc (estimated) Bore X Stroke: Approximate bore: 95 mm, Approximate stroke: 130 mm (typical for this engine family). Compression Ratio: Typically around 18:1 to 20:1 for diesel engines of this era. 🔧 Transmission Standard Transmission Type: Manual gearbox Optional Gear Options: Typically 4 or 5 forward gears and 1 reverse gear. Features Drive System: 2WD (Rear-wheel drive) Clutch Type: Dry single-plate clutch Gear Ratios: Specific ratios are detailed in technical manuals but are designed for agricultural field operations. Power Take Off Pto: Standard rear PTO, likely with two speeds (e.g., 540 RPM). Manual will detail PTO components. 📐 Dimensions Exterior Wheelbase: Approximately 1830 mm (72 inches) Length: Approximately 3100 mm (122 inches) Width: Approximately 1500 mm (59 inches) (variable based on rear track setting) Ground Clearance: Varies based on tire size and axle setup, typically around 300-400 mm. Weights Operating Weight: Approximately 1600-1800 kg (3527-3968 lbs) 🛡️ Safety Features Ratings Safety Standards: Conforms to agricultural tractor safety standards of the era. Lacked modern safety features like ROPS (Roll-Over Protection Structure) or seatbelts as standard. Active Features Braking System: Mechanical drum brakes, typically operating on the rear wheels. Passive Features Operator Protection: Minimal passive safety features; operator protection relied on operator diligence and the robust construction of the tractor. 💡 Technology Features Infotainment Features: N/A...