🏷️ Basic Information Identification Make: Zetor Model: 6748 Product Name: Zetor 6748 Tractor Operator Manual 👋 Introduction Market Position Tractor Segment: Utility Tractor, designed for general farm work, field operations, and material handling. Competitive Analysis Competitors: Rivalled tractors from manufacturers like Belarus, Ursus, and other Eastern Bloc agricultural equipment producers of the era. Key Features Versatility: Designed for a wide range of agricultural tasks, often with robust build quality. Simplicity: Typically featured straightforward mechanical systems, making them relatively easy to maintain with basic tools. 📋 Manual Details Coverage Areas Primary Coverage: Operation, Maintenance, and Basic Troubleshooting of the Zetor 6748 Tractor Page Count Estimated Page Count: 150-250 (typical for operator manuals of this era/type) Manual Type Type: Operator Manual / Owner's Manual Language Language: English (assumed based on product description context, but could vary) Format Format: Printed Book (implied by 'In this book') 📖 Manual Coverage Systems Covered Engine Operation: Detailed instructions for starting, stopping, and operating the engine under various load conditions. Transmission Operation: Explanation of gear selection, clutch operation, and power take-off (PTO) engagement. Hydraulic System: Operation of the tractor's hydraulic lift, external hydraulic circuits, and control levers. Steering And Braking: Proper use of steering mechanisms and brake controls for safe operation. Electrical System Overview: Basic understanding of lighting, indicators, and instrument panel functions. 3 Point Hitch And Attachments: Instructions for connecting and operating various implements with the 3-point hitch. Procedures Included Pre Operation Checks: Daily inspection checklist including fluid levels, tire pressure, and safety equipment. Routine Maintenance: Lubrication points, filter replacement intervals, and general cleaning procedures. Troubleshooting Basics: Guidance on identifying and resolving common operational issues without deep disassembly. Safety Precautions: Comprehensive warnings and safe operating practices for all tractor functions. Technical Depth Depth: Operator level; focuses on safe and efficient use, not in-depth mechanical repair. 📊 Manual Specifications File Format Digital Format: N/A (Print) Print Quality Print Quality: Standard Operator Manual Print Quality (expect clear text and diagrams) Binding Type Binding: Likely Saddle-Stitched or Perfect Bound Paper Type Paper Type: Durable Paper Stock suitable for workshop environments ⚙️ Engine Specifications Primary Engine Engine Manufacturer: Zetor (In-house) Engine Model Family: Zetor 6701 Series (likely) Engine Type: Naturally Aspirated Diesel Cylinder Configuration: Inline 4-cylinder Displacement: Approximately 3.5 - 3.9 Liters (common for this series) Performance Rated Horsepower: Approximately 65-70 HP (at rated engine speed) Peak Torque: Estimated 200-250 Nm (at specific RPM range) Fuel System Fuel Type: Diesel Fuel Injection System: Mechanical Injection Pump (likely Bosch or Zetor branded) 🔧 Transmission Standard Transmission Type: Manual Synchromesh Transmission Number Of Gears Forward: 8 Forward Gears (common configuration) Number Of Gears Reverse: 4 Reverse Gears (common configuration) Features Clutch Type: Dry Single-Plate Clutch Rear Differential Lock: Standard mechanical differential lock Pto Speeds: 540 RPM and 1000 RPM PTO (standard dual speed) 📐 Dimensions Exterior Overall Length: Approximately 3.8 - 4.1 meters (without front weights/implements) Overall Width: Approximately 1.7 - 2.0 meters (variable rear track) Overall Height: Approximately 2.4 - 2.6 meters (to top of steering wheel/platform) Weights Operating Weight: Approximately 2,500 - 3,000 kg (unballasted) Front Axle Load: Designed for significant front-end loader work, requires proper ballasting. Rear Axle Load: Rated for substantial towing and implement loads. 🛡️ Safety Features Ratings Rollover Protection: ROPS (Roll-Over Protective Structure) typically optional or field-fit on this model era, not standard. Active Features Parking Brake: Mechanical Parking Brake Turn Signals And Lighting: Standard lighting circuits (headlights, taillights, turn signals where equipped). Passive Features Seat Belt: Seat belt likely optional or not standard on early versions. Operator Presence Control: Basic operator presence safety interlocks (e.g., clutch safety switch for starting). 💡 Technology Features Infotainment Features: Basic instrumentation: Tachometer, Hour Meter, Temperature Gauge, Oil Pressure Light, Fuel Gauge. No infotainment system as understood in modern vehicles. Driver Assistance Features: None (basic mechanical controls only). 🔧 Maintenance Service Intervals Engine Oil Change: Typically 250-400 operating hours or annually. Air Filter Service: As required based on operating conditions, visually inspected monthly, replaced annually or when dirty. Fuel Filter Replacement: Every 500-750 operating hours or annually. Fluid Specifications Engine Oil Type: API CD/CE or equivalent SAE 15W-40 Diesel Engine Oil (verify with specific manual). Transmission Hydraulic Fluid: Zetor Hydraulic Oil, ISO VG 46 or equivalent (e.g., Case IH Hy-Tran, John Deere Hy-Gard). Coolant Type: Ethylene Glycol based antifreeze with corrosion inhibitors, 50/50 mix with distilled water. Known Issues Electrical Reliability: Older Zetor models can sometimes experience issues with wiring harnesses and starter motors due to age. Hydraulic Leaks: Common in aging tractors; seals and O-rings in the hydraulic system may require periodic replacement. Clutch Wear: Heavy-duty use can lead to clutch wear, requiring adjustment or replacement. 📚 Vehicle History Brand Heritage Manufacturer Origin: Zetor is a Czech Republic-based manufacturer with a long history of producing agricultural tractors, dating back to the post-WWII era. Model Evolution Series Placement: The 6748...