🏷️ Basic Information

Make:

Kubota

Model:

L4610

Model Variants:

L4610DT, L4610GST, L4610HST

Vehicle Type:

Tractor

Generation Identifier:

L-Series (specific to L4610)

Product Code:

L4610DT L4610GST L4610HST

👋 Introduction

Segment:

Compact Utility Tractor (CUT)

Target Audience:

Owners and operators of Kubota L4610 series tractors, agricultural professionals, landscaping businesses, property maintenance companies.

Competitors:

John Deere (e.g., 5000 series), Massey Ferguson (e.g., 3600 series), New Holland (e.g., T3000 series), Mahindra (e.g., 3000 series).

Key Differentiators:

Kubota's reputation for reliability, user-friendly operation, and robust build quality in the compact tractor segment. The L4610 specifically offers versatility with different transmission options and a strong PTO output for its class.

Manual Value Proposition:

Provides essential, accurate part identification for efficient maintenance, repair, and component sourcing, reducing downtime and ensuring the correct parts are used.

Vehicle Highlight:

The L4610 series is known for its powerful engine, versatile transmission options (DT, GST, HST), and strong hydraulic capabilities, making it a capable workhorse for various tasks.

📋 Manual Details

Major Assemblies:

Engine, Transmission, Drivetrain, Hydraulics, Steering, Brakes, Electrical System, Chassis, PTO, Loader (if equipped with factory loader parts), Implements (compatibility/mounting points).

Specific Components:

Engine components (pistons, rings, bearings, valves, fuel injection system), Transmission gears and components, Differential and final drive assemblies, Hydraulic pump and cylinder parts, Steering linkage, Brake caliper and disc/drum components, Starter, Alternator, Wiring harnesses, Fuel tank and lines, Radiator and cooling system parts, PTO clutch and shaft, Seat, Fender, and operator station components.

Estimated Pages:

High (Detailed parts explosions suggest 500+ pages, typical for comprehensive parts catalogs).

Type:

Illustrated Master Parts List / Parts Catalog

Language:

English (Typical for this market segment and region).

Format:

PDF Download

📖 Manual Coverage

Engine System:

Detailed breakdown of all engine internal and external components, including fuel, oil, and cooling systems.

Transmission System:

Coverage for DT (Gear Shift), GST (Syncro-Shuttle), and HST (Hydrostatic) transmission variants, including all internal gears, shafts, clutches, and control mechanisms.

Drivetrain System:

Front and rear axles, differentials, final drives, driveshafts, and associated components.

Hydraulic System:

Hydraulic pump, control valves, cylinders (lift, steering), hoses, and connections.

Steering System:

Components of the power steering system, including pump, hoses, and steering linkage.

Braking System:

Components of both mechanical (parking) and hydraulic braking systems.

Electrical System:

Starter motor, alternator, battery, lighting, wiring harnesses, fuses, and switches.

Operator Station:

Seat, controls, pedals, steering wheel, dashboard, fenders, and platform components.

Pto System:

Power Take-Off (PTO) shaft, clutch, and related components for rear and potentially mid-PTO.

Loader Integration:

Parts for factory-installed front loaders, including mounting brackets, cylinders, and hydraulic lines.

Part Identification:

Identification of all individual parts with corresponding part numbers for ordering and replacement.

Assembly Disassembly Guidance:

Visual aids (exploded views) that implicitly guide disassembly and reassembly sequences.

Depth:

Comprehensive for parts identification and procurement; assumes user has prior mechanical knowledge for actual repair.

Detail Level:

Highly detailed component breakdowns and part number cross-referencing.

📊 Manual Specifications

Format Details:

PDF (Portable Document Format), enabling easy viewing and searching across devices.

Searchability:

Likely text-searchable if the PDF is well-generated, allowing quick lookup of part numbers or descriptions.

Printability:

Designed for digital viewing but printable for physical reference in workshop environments.

Binding:

N/A (Digital PDF Download - binding is irrelevant for the provided format).

Paper Type:

N/A (Digital PDF Download - paper type is irrelevant for the provided format).

⚙️ Engine Specifications

Make:

Kubota

Model Family:

D Series (likely D1803 or similar)

Displacement:

~2.19 Liters (approx. 133.5 cu. in. for a 4-cylinder diesel of this era).

Engine Type:

Diesel, 4-cylinder, Indirect Injection (IDI) or Direct Injection (DI), Naturally Aspirated or Turbocharged (depending on specific L4610 sub-variant, but typically DI NA or Turbo for this HP).

Bore X Stroke:

Variable, e.g., 87 x 92.4 mm (typical for D1803 family).

Cooling System:

Liquid-cooled (Water-cooled) via radiator, fan, and coolant.

Rated Engine Hp:

Approx. 46 HP (Engine HP, PTO HP will be less).

Pto Hp:

Approx. 38-40 HP (This is the usable power for implements).

Max Torque:

Refer to specific workshop manual for precise figures, but generally in the range of 100-120 lb-ft.

Fuel Type:

Diesel Fuel

Fuel Injection:

Direct Injection (DI) via injector pump and injectors.

Fuel Filter Part Number:

Example: Kubota OEM 15221-43000 (verify specific model requirement).

🔧 Transmission

Transmission Types Offered:

DT (Gear Shift), GST (Synchro Shuttle - Partial Synchro), HST (Hydrostatic Transmission with variable speed control).

Dt Gear Configuration:

8 Forward / 4 Reverse speeds (typical for DT).

Gst Gear Configuration:

16 Forward / 16 Reverse speeds with shuttle lever (typical for GST).

Hst Gear Configuration:

Variable speed control via foot pedal, often with High/Low range selection.

Optional Transmissions:

The L4610 was offered in DT, GST, and HST variants, making these distinct model configurations rather than optional upgrades on a single base model.

Shuttle Shift:

Available on GST and HST models for forward/reverse directional changes without clutching.

Pto Speeds:

Standard 540 RPM PTO (rear), potentially with 540 Economy PTO or ground speed PTO depending on configuration.

Transmission Fluid Type:

Kubota UDT Fluid or equivalent (e.g., AGCO UTTO Specification) for HST and some other variants. Check manual for specific recommendations.

Transmission Fluid Capacity:

Approximately 30-35 Liters (check manual for precise figure).

📐 Dimensions

Overall Length:

Approx. 3.15 meters (without 3-point hitch).

Overall Width:

Approx. 1.55 meters (standard tire width).

Wheelbase:

Approx. 1.81 meters.

Ground Clearance:

Approx. 0.37 meters (under rear axle).

Height To Exhaust:

Approx. 1.45 meters.

Operating Weight:

Approx. 1300-1500 kg (depending on configuration and fluids).

Drawbar Pull Capacity:

Significant for its class, capable of pulling heavy implements.

Lifting Capacity 3Pt Hitch:

Category I, approx. 1150 kg at lift arms (verify spec).

🛡️ Safety Features

Roll Over Protection Structure:

ROPS (Roll Over Protective Structure) is standard equipment or a common option for operator safety. Likely includes seatbelt.

Pto Brake:

Engaged when PTO lever is disengaged.

Parking Brake:

Independent mechanical parking brake.

Seat Belt:

Standard on ROPS-equipped tractors.

Operator Presence Detection:

Likely has a switch that prevents PTO engagement or PTO/transmission movement if the operator is not seated (verify specific model features).

💡 Technology Features

Infotainment Features:

N/A (Tractors of this era do not feature automotive-style infotainment systems).

Driver Assistance Features:

N/A (Tractors focus on mechanical controls and PTO/hydraulic management).

Connectivity Features:

N/A (No digital connectivity or smart features).

🔧 Maintenance

Engine Oil Change:

Every 100-200 hours or annually (check manual for exact interval and conditions).

Oil Filter Change:

At every engine oil change.

Air Filter Service:

Inspect every 50-100 hours, replace as needed or annually. Clean pre-cleaner frequently.

Fuel Filter Replacement:

Every 200-400 hours or annually, or as needed if fuel quality is suspect.

Transmission Fluid Change:

Every 400-600 hours or every 2 years (check manual for specific interval and filter replacement).

Engine Oil Type:

API CI-4 or CH-4 SAE 15W-40 Diesel Engine Oil (check manual for specific viscosity based on temperature).

Engine Oil Capacity:

Approximately 6.1 Liters (6.4 US Quarts) with filter change.

Hydraulic Fluid Type:

Kubota UDT Fluid (Universal Transmission & Drive Train) or equivalent approved fluid.

Coolant Type:

Permanent Type Anti-freeze (Ethylene Glycol based) mixed 50/50 with distilled water.

Common Wear Items:

PTO clutch wear, hydraulic filter clogging, front axle pivot wear, common with tractors of this age and usage.

Hst Component Longevity:

Hydrostatic transmissions can be sensitive to fluid contamination; proper maintenance is crucial for longevity. Internal wear is possible with high hours.

Electrical Issues:

Corrosion on electrical connectors, aging wiring harnesses, and starter/alternator wear are typical for aging machinery.

📚 Vehicle History

Manufacturer:

Kubota Corporation is a Japanese manufacturer with a long history in agricultural machinery, founded in 1890.

Reputation:

Globally recognized for high-quality, reliable, and durable compact and sub-compact tractors.

L Series Context:

The L-series represents Kubota's core line of versatile utility tractors, evolving over decades to incorporate new technologies and performance enhancements.

L4610 Positioning:

Positioned as a robust and capable compact utility tractor, bridging the gap between smaller sub-compacts and larger agricultural tractors.

Production Years:

Generally produced in the early to mid-2000s (e.g., 2003-2009, exact years vary by region and specific model update).

Manufacturing Location:

Primarily manufactured in Japan by Kubota.

🏆 Awards & Recognition

Industry Awards:

Kubota tractors, including the L-series, consistently receive accolades for reliability and performance from agricultural publications and organizations, though specific 'awards' for individual models are rare.

Customer Satisfaction:

Generally high customer satisfaction for durability and build quality, contributing to strong resale value.

Emissions Standards:

Complies with relevant emissions standards for off-road diesel engines of its production era.