🏷️ Basic Information Identification Make: Yanmar Model: YM155 / YM155D Vehicle Type: Tractor Product Name: Yanmar YM155 YM155D Tractor Service Repair Manual 👋 Introduction Market Position Target Audience: Do-it-yourselfers and experienced mechanics seeking comprehensive repair information for Yanmar YM155/YM155D tractors. Competitive Analysis Format Advantage: Digital PDF format is more convenient and less expensive than traditional paper manuals. Key Features Completeness: Complete official full factory service repair manual covering all styles. Instructional Detail: Step-by-step instructions based on complete disassembly, accompanied by hundreds of photos and illustrations. Cost Effectiveness: Inexpensive way to keep the vehicle working properly and save money on mechanic costs. Accessibility: Instant download, no extra fees, no expiry dates. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service and repair procedures for Yanmar YM155 and YM155D tractors. Page Count Estimated Pages: Hundreds of pages (specific number not provided, but implies extensive detail). Manual Type Type: Service Repair Manual / Workshop Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, diagnosis, and repair. Fuel System: Diesel fuel system components, injection, troubleshooting, and repair. Cooling System: Radiator, thermostat, water pump, hoses, and coolant system maintenance and repair. Electrical System: Wiring diagrams, starter, alternator, battery, lighting, and electrical component troubleshooting. Transmission: Gearbox, clutch, drivetrain components, and related systems. Clutch: Clutch assembly, operation, adjustment, and replacement. Brakes: Brake system components, hydraulic operation, maintenance, and repair. Differential: Front and rear differential assemblies, maintenance, and overhaul. Differential Lock: Operation, maintenance, and repair of the differential lock mechanism. Final Drive: Final drive assemblies and their components. Front System: Front axle, steering system, and related components. Hydraulic System: Hydraulic pump, cylinders, control valves, and system maintenance. Power Take Off: PTO operation, maintenance, and troubleshooting. Procedures Included Maintenance: Scheduled maintenance, lubrication, fluid checks, and adjustments. Repair: Detailed step-by-step repair instructions for all major components and systems. Troubleshooting: Diagnostic procedures for identifying and resolving common and complex issues. Disassembly Assembly: Complete disassembly and reassembly instructions for all vehicle systems. Technical Depth Depth: Comprehensive, factory-level detail suitable for both DIY owners and experienced mechanics. 📊 Manual Specifications File Format File Type: PDF Searchable: Implied by digital PDF format, allowing keyword searches. Print Quality Printability: Printable in its entirety or selected pages. Binding Type Binding: N/A (Digital PDF format, binding not applicable). Paper Type Paper Quality: N/A (Digital PDF format, paper type not applicable). Compatibility Operating Systems: Compatible with all versions of Windows and Mac. Device Access: Accessible on desktops, laptops, smartphones, and tablets via web browser or PDF reader. Requirements Software Requirements: Adobe PDF Reader and Winzip (free online). ⚙️ Engine Specifications Primary Engine Engine Type: Diesel (Specific engine model/series not detailed in product info). Performance Horsepower: Estimated 15-20 HP range based on typical Yanmar YM series compact tractors of this era (specific rating not provided). Fuel System Fuel Type: Diesel Injection System: Likely a direct injection diesel system, common for Yanmar of this class (specifics in manual). 🔧 Transmission Standard Transmission Type: Likely a manual transmission with multiple gear ranges and possibly a creeper gear. (Specifics within manual). Optional Drive Type: YM155 (likely 2WD), YM155D (likely 4WD - 'D' often denotes 4-wheel drive). Features Pto: Power Take-Off (PTO) system is covered. 📐 Dimensions Exterior Overall Length: Not specified in product info, but typical for compact tractors. Overall Width: Not specified in product info, but typical for compact tractors. Weights Operating Weight: Not specified in product info, but expected to be in the sub-2000 lb range for this class. 🛡️ Safety Features Ratings Safety Features: While specific ratings aren't mentioned, the manual would cover operational safety, hazard warnings, and proper use of safety equipment like ROPS (Roll-Over Protective Structure) if equipped. 💡 Technology Features Infotainment Features: N/A (Tractors of this era typically do not feature modern infotainment systems; focus is on functional controls). Driver Assistance Features: N/A (No electronic driver assistance features expected). Connectivity Features: N/A (No electronic connectivity features). 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 100-250 operating hours, detailed in the manual. Air Filter Maintenance: Frequent checks, cleaning or replacement based on operating conditions, detailed in the manual. Fuel Filter Replacement: Scheduled replacement, often annually or every 250-500 hours, detailed in the manual. Fluid Specifications Engine Oil Type: Viscosity grade typically SAE 10W-30 or 15W-40 diesel engine oil, meeting API CD or higher classification (specifics in manual). Hydraulic Fluid Type: Typically a universal tractor transmission oil (UTTO) or hydraulic fluid meeting Caterpillar TO-2 or similar specifications (specifics in manual). Coolant Type: Ethylene glycol-based antifreeze/coolant mixture, typically a 50/50 blend with distilled water (specifics in manual). Known Issues Common Wear Items: Clutch wear, hydraulic system leaks, starter motor issues, and potential for overheating if cooling system is neglected are common across tractors of this age and class. The manual will help diagnose and fix these. 📚 Vehicle History...