Basic Information Identification Make: Kubota Model: B1550, B1750, B2150 HST Product Type: Workshop Service Manual Codes Sku: KUB-B1550-B1750-B2150-HST-WSM-PDF Introduction Market Position Category: Compact Utility Tractors Target User: Homeowners, small farm operators, landscape professionals, property maintenance. Competitive Analysis Competitors: John Deere 1-series/2-series, Yanmar SA series, Mahindra Max series, Kioti CS/CK series, Massey Ferguson GC series. Key Features Vehicle Strengths: Compact size, maneuverability, hydrostatic transmission (HST) for ease of operation, robust Kubota build quality, versatility with various attachments. Manual Value Proposition: Essential for maintaining optimal performance, preventing costly breakdowns, and maximizing the lifespan of the tractor. Manual Details Coverage Areas Models Covered: Kubota B1550 HST, Kubota B1750 HST, Kubota B2150 HST Years Covered: All Model Years (for applicable models) Page Count Estimated Page Count: Comprehensive (typically 500+ pages for this class of tractor) Manual Type Type: Workshop Service Manual / Repair Manual Language Language: English Format Format: PDF Download Manual Coverage Systems Covered Engine Systems: Engine overhaul, cylinder head, block assembly, fuel injection system, lubrication system, cooling system, intake and exhaust systems, starting system, charging system. Transmission Systems: HST (Hydrostatic Transmission) diagnosis, repair, fluid specifications, hydrostatic unit service, main gearbox service, drive shafts, differential. Hydraulic Systems: Hydraulic pump, control valve, cylinders, actuators, PTO (Power Take-Off) hydraulic components, fluid specifications, troubleshooting. Electrical Systems: Wiring diagrams, starter motor, alternator, battery service, lighting system, accessory circuits, troubleshooting electrical faults. Chassis And Steering: Front axle, rear axle, steering system (hydraulic power steering), braking system, wheel alignment, chassis lubrication. Operator Station: Seat, controls, dashboard indicators, ROPS (Roll-Over Protective Structure) if applicable, body panels. Procedures Included Maintenance Procedures: Routine maintenance schedules, oil changes, filter replacements, lubrication points, greasing intervals, cooling system flush and fill, hydraulic fluid service. Troubleshooting Guides: Systematic diagnostics for common problems, symptom-based troubleshooting charts, error code explanations (if applicable). Repair Procedures: Step-by-step instructions for component disassembly, overhaul, reassembly, and replacement. Technical Specifications: Torque specifications for all fasteners, critical clearances, fluid capacities, performance data. Special Tools: Identification and usage of specialized tools required for specific repair tasks. Technical Depth Depth: Comprehensive (covers everything from basic maintenance to full engine and transmission rebuilds). Manual Specifications File Format Format: PDF Searchability: Text-searchable PDF for quick information retrieval. Printability: Printable pages for on-site work. Print Quality Quality: High-resolution digital reproduction of original factory manual. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) Engine Specifications Primary Engine Manufacturer: Kubota Model B1550: D722 Diesel Model B1750: D855 Diesel Model B2150: D905 Diesel Performance B1550 Horsepower: Approx. 15 HP (Gross) B1750 Horsepower: Approx. 18 HP (Gross) B2150 Horsepower: Approx. 21 HP (Gross) Fuel System Type: Indirect Injection Diesel Injection Pump: Bosch/Kubota Rotary Injection Pump Cooling System Type: Liquid Cooled Lubrication System Type: Forced Lubrication with Oil Pump Transmission Standard Type: Hydrostatic Transmission (HST) Speeds: Infinitely Variable (Forward & Reverse) Features Cruise Control: Often equipped with a cruise control lever for maintaining speed. Forward Reverse Shuttle: Lever operated for easy direction changes. Hydraulic Fluid Specification: Kubota Super UDT Fluid or equivalent (refer to manual for precise specs and alternatives). Hydraulic Fluid Capacity Capacity: Varies by model, approximately 20-25 Liters (refer to manual). Dimensions Exterior Overall Length: Varies by model, typically 2.5-3.0 meters. Overall Width: Varies by model, typically 1.2-1.5 meters. Wheelbase: Varies by model, typically 1.5-1.8 meters. Weights Operating Weight: Varies by model, typically 700-1000 kg without attachments. Towing Capacity: Refer to specific model's operator manual or specifications; typically limited for this class. Safety Features Ratings Rollover Protection: ROPS (Roll-Over Protective Structure) usually standard or optional. Active Features Braking System: Wet disc brakes, typically internal to rear axle housing. Parking Brake: Independent parking brake mechanism. Passive Features Seatbelt: Seatbelt often integrated with ROPS or on the operator's seat. Technology Features Infotainment Features: Basic operator station; focus is on functionality and durability, not typically equipped with advanced infotainment systems. Driver Assistance Features: No advanced driver-assistance systems. Operator is responsible for all functions. Connectivity Features: No integrated connectivity features. Maintenance Service Intervals Engine Oil Change: Typically every 50 hours or annually, whichever comes first (refer to manual). Hydraulic Fluid Change: Typically every 400-600 hours or annually. Air Filter Replacement: Inspect regularly, replace as needed or every 200-300 hours. Fluid Specifications Engine Oil: Kubota SUPER UDT, SAE 10W-30 or 15W-40 Diesel Engine Oil (API CG-4 or higher, check manual for exact viscosity and API rating). Coolant: Ethylene glycol-based antifreeze, 50/50 mix with distilled water. Kubota recommends their specific coolant. Known Issues Common Problems: Potential for hydrostatic pump wear with extreme usage, minor electrical connector corrosion in damp environments, need for regular greasing of PTO and linkage points. Preventative Maintenance: Adherence to scheduled maintenance, particularly fluid and filter changes, is crucial for longevity. Vehicle History Brand Heritage Heritage: Kubota has a long-standing reputation for producing reliable and durable diesel engines and agricultural machinery since its founding in 1890. Model Evolution Series Placement: The...