Tractor Class:
Compact/Utility Tractor (Kubota L-Series)
Target User:
Farmers, landscapers, property owners requiring robust and versatile tractor for various tasks
Competitors:
John Deere 5 Series, Massey Ferguson 4700 Series, Mahindra 4500 Series
Transmission Type:
GST (Glide Shift Transmission) - Electro-hydraulic, powershift transmission offering seamless shifting without clutch operation
Operator Comfort:
GST controls, ergonomically designed operator station, potentially with weather protection options (ROPS/FOPS)
Versatility:
Designed for a wide range of implements including loaders, backhoes, mowers, and tillage equipment
Engine Systems:
Engine overhaul, fuel system, cooling system, lubrication system, starting and charging system
Transmission Systems:
GST (Glide Shift Transmission) operation, maintenance, repair, hydrostatic system
Drivetrain Systems:
Front wheel drive (4WD), rear axle, differential, PTO (Power Take-Off) system
Hydraulic Systems:
Hydraulic pump, control valves, cylinders, hitch system (iNHM), auxiliary hydraulics
Electrical Systems:
Wiring diagrams, lighting, starting and charging, sensor diagnostics, control unit functions
Steering Braking Systems:
Power steering system, brake system (wet disc brakes), parking brake
Chassis And Body:
Frame, fenders, operator's station, hood, ballast considerations
Maintenance Procedures:
Routine inspections, lubrication points and intervals, filter replacements, fluid changes
Diagnostic Procedures:
Troubleshooting guides, symptom-based diagnostics, error code interpretation
Repair Procedures:
Component disassembly, assembly, adjustment, and replacement for all major systems
Engine Overhaul:
Detailed procedures for engine rebuilds, including torque specifications, clearances, and timing
Transmission Repair:
GST transmission adjustments, component testing, and full overhaul procedures
Hydraulic System Calibration:
Calibration of hydraulic controls, relief valve settings, pump testing
Depth Of Information:
Comprehensive, suitable for professional technicians and advanced DIY mechanics
Diagnostic Level:
Advanced diagnostics including electrical schematics and troubleshooting trees
Rebuild Capability:
Full component rebuilds for engine, transmission, hydraulics, and drivetrain
Engine Model:
Kubota Diesel Engine (specific model not provided in product info, typically D1803 or similar for this series)
Engine Type:
Vertical, water-cooled, 4-cycle diesel
Displacement:
Typically 1.8-2.4 Liters (dependent on exact engine variant)
Horsepower Rating:
Approximately 36-40 Gross HP (PTO HP will be lower)
Rated Engine Speed:
Typically 2600 RPM
Injection System:
Direct injection with glow plugs for cold starting
Oil Type:
Kubota UDT Fluid or compatible SAE 80W-90 API GL-4 gear oil (refer to manual for exact specification)
Coolant Type:
Ethylene Glycol based antifreeze (50/50 mix with distilled water recommended)
Transmission Type:
GST (Glide Shift Transmission) - 12 Forward / 12 Reverse gears with electro-hydraulic powershift
Transmission Options:
Standard for L3650GST. A non-GST manual transmission may exist for other L3650 variants, but not for this product title.
Shift Mechanism:
Electro-hydraulic control levers for shifting between gear ranges and within speed groups
Clutch Operation:
No clutch pedal required for shifting between gear sets (clutch pedal for starting/stopping)
Transmission Fluid:
Kubota UDT (Universal Transmission Fluid) or equivalent
Overall Length:
Approx. 120-130 inches (305-330 cm) without implements
Overall Width:
Approx. 55-65 inches (140-165 cm) depending on tire configuration
Wheelbase:
Approx. 70-75 inches (178-190 cm)
Operating Weight:
Approx. 3000-3500 lbs (1360-1590 kg) without ballast or implements
Drawbar Pull:
Capacity dependent on tractor weight and ballast, typically several thousand pounds
Rollover Protection:
Standard ROPS (Roll-Over Protective Structure). Optional weather cab may include enhanced safety features.
Braking System:
Wet disc brakes for reliable stopping power, independent parking brake
Safety Interlocks:
PTO and transmission safety interlocks to prevent accidental engagement
Operator Station:
Non-slip steps, handrails, and guarded PTO shaft
Operator Interface:
Mechanical and electro-hydraulic controls; basic dashboard with indicator lights and gauges (RPM, fuel, temperature).
Assistance Features:
Mainly focused on mechanical and powertrain control; no advanced driver-assistance systems (ADAS) typical of automotive.
Connectivity Features:
N/A (Tractor technology focuses on mechanical and operational functions, not modern electronic connectivity)
Engine Oil Change:
Typically every 100-250 hours or annually, depending on operating conditions. Refer to manual for exact interval.
Transmission Fluid Change:
Typically every 500-1000 hours. Refer to manual for exact interval and procedure.
Air Filter Replacement:
Inspect regularly, replace when dirty or per manual's schedule (e.g., 200-500 hours).
Engine Oil Specification:
Kubota Super Diesel Oil SAE 15W-40 or API CI-4, CH-4, CG-4, CF-4, CD
Hydraulic Fluid Specification:
Kubota UDT Fluid or compatible ISO VG 32 hydraulic oil (for specific hydraulic functions if not UDT)
Coolant Capacity:
Approximately 6-7 liters (refer to manual for exact capacity).
Common Wear Items:
Clutch packs (in GST), hydraulic seals, PTO components, fuel injectors, starter motors
Diagnostic Challenges:
GST transmission control system diagnostics can be complex and require specialized knowledge and tools.
Manufacturer History:
Kubota is a Japanese manufacturer with a long history of producing agricultural machinery, known for reliability and durability.
L Series Positioning:
The L-Series is Kubota's core utility tractor line, known for its versatility and robust construction, bridging the gap between sub-compact and large utility tractors.
Gst Introduction:
The GST transmission was a significant advancement, offering automotive-like shifting convenience in a tractor, enhancing operator comfort and productivity.
Production Period:
The L3650GST was primarily produced in the late 1990s and early 2000s, a popular model in its generation.
Industry Standing:
Kubota tractors are consistently recognized for reliability, durability, and value in the agricultural and compact tractor market.
Customer Satisfaction:
High customer satisfaction generally attributed to Kubota's build quality and product longevity.
Emissions Standards:
Compliant with relevant emissions standards for its production era (e.g., Tier II or equivalent).
