Segment:
Mid-range utility tractor, positioned for a balance of power, versatility, and operator comfort
Competitors:
John Deere 5 Series, New Holland TD5 Series, Massey Ferguson 4700 Series, Mahindra 5000 Series
Tractor Features:
Robust chassis, powerful engine, efficient hydraulics, versatile transmission options, comfortable operator station
Engine:
Detailed engine overhaul, diagnostics, fuel system, lubrication, cooling, starting, charging
Transmission:
PowerShift, hydrostatic, or manual transmission service, troubleshooting, and rebuild procedures
Hydraulic System:
Hydraulic pump, valves, cylinders, PTO operation, and troubleshooting
Electrical System:
Wiring diagrams, component testing, troubleshooting of starting, charging, lighting, and instrumentation
Chassis And Steering:
Front axle, rear axle, steering system, suspension components
Braking System:
Brake system diagnostics, maintenance, and repair
Power Take-Off:
Rear and/or front PTO system maintenance and repair
Operator Station:
Controls, dashboard, seating, HVAC (if equipped) service
Body And Frame:
Body panel repair, frame integrity checks
Maintenance:
Scheduled maintenance, lubrication, filter changes, fluid level checks
Troubleshooting:
Diagnostic flowcharts and common problem resolution
Repair:
Step-by-step repair instructions for all major components and systems
Overhaul:
Complete engine, transmission, and hydraulic system overhaul procedures
Diagnostics:
Diagnostic procedures for electrical, hydraulic, and mechanical systems
Adjustments:
Precise adjustment procedures for valves, clutches, brakes, etc.
Disassembly And Assembly:
Detailed instructions for component disassembly and reassembly
Depth:
Comprehensive (suitable for professional mechanics and advanced DIY users)
Engine Model:
Likely a Kubota diesel engine (specific model varies, e.g., V3800-DI or similar)
Displacement:
Typically around 3.8 liters for this class
Horsepower:
Rated horsepower around 105 HP (engine gross horsepower)
Torque:
Specific torque figures available within the manual, crucial for load-bearing applications
Governed Speed:
Typically around 2400-2600 RPM
Emissions Compliance:
Depends on the production year and market; manual will detail relevant standards (e.g., Tier 3, Tier 4)
Injection Type:
Direct injection, likely common rail diesel technology
Transmission Type:
Often a powershift or shuttle-shift transmission, with options for synchronised transmissions
Transmission Options:
May include creeper gears or different speed configurations
Clutch Type:
Wet clutch packs for powershift and shuttle functionality
Gear Selection:
Manual levers and/or electronic controls for gear selection
Transmission Fluid Type:
Specific Kubota UDT or equivalent fluid (check manual for exact specification)
Wheelbase:
Variable based on configuration, typically around 2300-2400 mm
Overall Length:
Varies with loader and hitch configuration, generally 4000-4500 mm
Overall Width:
Configurable, often around 1800-2000 mm
Operating Weight:
Typically 3500-4000 kg without ballast or attachments
Max Allowable Weight:
Significant, designed for heavy fieldwork and loader work
Rollover Protection:
ROPS (Roll-Over Protective Structure) is standard and critical for safety
Seatbelt:
Mandatory seatbelt integration with ROPS
Parking Brake:
Mechanical parking brake
Lighting:
Work lights, turn signals, brake lights as per regulations
Operator Presence System:
May include systems to disengage PTO or transmission when operator leaves the seat
Dashboard Features:
Analog gauges and digital displays for engine parameters, speed, PTO engagement, and diagnostic alerts
Transmission Control:
Electro-hydraulic or mechanical controls for forward/reverse shuttle and gear selection
Electrical Interface:
Standard electrical outlets for accessories and trailer lighting
Engine Oil Change:
Typically every 250 hours of operation (refer to manual for exact interval and oil type)
Air Filter Service:
Check and service based on operating conditions, typically every 250-500 hours
Hydraulic Oil Filter:
Recommended replacement at specified intervals, often with hydraulic oil change
Engine Oil Grade:
Kubota's recommended diesel engine oil (e.g., SAE 15W-40 API CJ-4 or equivalent)
Coolant Type:
Ethylene glycol based antifreeze/coolant, mixed with distilled water (specific mix ratio in manual)
Hydraulic Fluid:
Kubota UDT (Universal Transmission and Drive Train) fluid or equivalent meeting Kubota specifications
Common Wear Items:
Clutch packs (on powershift), hydraulic seals, PTO clutch wear, potential electrical connector corrosion
Maintenance Tips:
Regular cleaning of cooling fins and air intake, checking hydraulic fluid cleanliness, ensuring proper tire inflation
Heritage:
Kubota has a long-standing reputation for producing reliable and durable compact and utility tractors for agricultural, construction, and landscaping applications.
Series Context:
The M-series represents Kubota's utility tractor line, designed for more demanding tasks than their sub-compact models. The M105S is a mid-power offering within this series.
Manufacturing Location:
Primarily manufactured in Japan and potentially other global facilities by Kubota Corporation.
