Tractor Segment:
Compact/Sub-Compact Utility Tractor.
Key Competitors:
John Deere 2000 Series, Mahindra eMax Series, Massey Ferguson GC Series, Yanmar SA Series.
Gvwr Capacity:
Specific GVWR varies by configuration, but typically designed for light to moderate landscaping and property maintenance.
Pto Horsepower:
PTO horsepower typically in the 15-19 HP range, depending on exact configuration.
Operator Comfort:
Designed for comfortable operation during extended use, often featuring hydrostatic transmission and ergonomic controls.
Versatility:
Capable of a wide range of attachments including mowers, loaders, tillers, snow blowers, and trailers.
Engine Systems:
Engine overhaul, fuel system, lubrication system, cooling system, ignition system (if applicable), starting system, charging system.
Drivetrain Systems:
Transmission (hydrostatic or mechanical), clutch, differential, PTO (Power Take-Off) system, drive shafts, axles.
Chassis Systems:
Steering system, braking system, suspension system (if applicable), wheels and tires.
Hydraulic Systems:
Hydraulic pump, cylinders, valves, hoses, filters, hydraulic fluid specifications and maintenance.
Electrical Systems:
Wiring diagrams, battery, starter motor, alternator/generator, lighting, instrumentation, fuses, relays.
Operator Station:
Seat, controls, dashboard, operator safety features.
Body And Frame:
Frame, body panels, fenders, hood, ballast considerations.
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements, lubrication points, valve adjustments, cooling system flushing, battery maintenance.
Troubleshooting Guides:
Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting charts.
Repair Procedures:
Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation.
Overhaul Procedures:
Complete engine overhaul, transmission rebuild, hydraulic system rebuild.
Adjustment Procedures:
Brake adjustments, clutch adjustments, steering adjustments, PTO engagement adjustments.
Specifications And Torques:
Tightening torques for all critical fasteners, engine specifications, fluid capacities, electrical specifications.
Diagnostic Capabilities:
Advanced diagnostic information, component testing procedures, electrical schematics for troubleshooting.
Rebuild Level:
Full engine and transmission rebuild procedures with detailed component diagrams.
Special Tools:
Identification of required special tools for specific repair and maintenance tasks.
Engine Model Number:
Kubota D722-G (commonly fitted, but specific to G1900 variant. Manual will confirm precise engine code).
Engine Type:
3-Cylinder, Diesel, Indirect Injection.
Displacement:
719 cc (43.9 cu in)
Bore X Stroke:
68 mm x 64 mm (2.68 in x 2.52 in)
Gross Horsepower:
Approximately 18.5 HP (13.8 kW) at 3000 RPM.
Net Horsepower:
Approximately 17.0 HP (12.7 kW) at 3000 RPM (engine manufacturer's rating).
Rated Engine Speed:
3000 RPM
Fuel Injection System:
Indirect Injection (IDI) with Bosch inline injection pump.
Fuel Filter Type:
Spin-on diesel filter.
Cooling Method:
Liquid-cooled
Coolant Capacity:
Approx. 3.2 L (3.4 US qt)
Oil Capacity With Filter:
Approx. 2.6 L (2.7 US qt)
Recommended Engine Oil:
Kubota UDT Fluid or API CE/CF SAE 10W-30, 15W-40 diesel engine oil (refer to manual for specific viscosity based on ambient temperature).
Transmission Type:
Hydrostatic Transmission (HST)
Transmission Control:
Two-pedal forward/reverse control.
Speed Ranges:
Typically two speed ranges: LOW and HIGH, with variable speed control within each range.
Pto Engagement:
Independent PTO, usually engaged via a lever.
Pto Speed:
540 RPM (standard rear PTO)
Transmission Fluid:
Kubota UDT Fluid or equivalent (Universal Tractor Transmission Oil).
Transmission Fluid Capacity:
Approx. 15 L (3.9 US gal) (verify with manual for exact capacity)
Overall Length:
Approx. 2350 mm (92.5 in) (without 3-point hitch, with mower deck may vary)
Overall Width:
Approx. 1070 mm (42.1 in) (at rear tires, may vary with tire size)
Overall Height:
Approx. 1295 mm (51.0 in) (to top of seat, without ROPS or cab)
Wheelbase:
Approx. 1300 mm (51.2 in)
Operating Weight:
Approx. 670 kg (1477 lbs) (base unit, without attachments)
Front Tire Size:
6-12 (common)
Rear Tire Size:
8-16 (common)
Ground Clearance:
Approx. 230 mm (9.1 in) (under front axle, may vary)
Operator Interface:
Basic dashboard with essential indicators (engine temp, oil pressure, battery charge, fuel level), hour meter, and warning lights.
Cruise Control:
Not typically available on this model.
Diagnostics Ports:
Basic electrical diagnostic points, but no advanced OBD-II or proprietary diagnostic port for electronic modules in the modern sense.
Engine Oil Change Interval:
Every 100 hours or annually, whichever comes first.
Fuel Filter Replacement Interval:
Every 200 hours or annually.
Air Filter Maintenance:
Inspect every 50 hours, clean or replace as needed. Replace every 200 hours or annually.
Hydraulic Fluid Filter Replacement:
Every 400 hours or every 2 years.
Hydraulic Oil Type:
Kubota UDT Fluid (Universal Transmission and Differential fluid) or equivalent.
Common Wear Items:
Hydrostatic transmission drive belts, PTO clutch disc, hydraulic pump seals, and cooling system components (hoses, radiator) are common wear items.
Troubleshooting Tips:
Manual provides detailed troubleshooting for issues like loss of power, hydraulic system leaks, starting problems, and PTO engagement failures.
Company Origins:
Kubota Corporation, a Japanese company founded in 1890, initially focused on pipes and later agricultural machinery. It is a globally recognized leader in compact construction equipment, tractors, and engines.
G Series Context:
The G-Series tractors are part of Kubota's extensive line of compact utility tractors, known for their reliability and versatility in property maintenance, landscaping, and light agricultural tasks. The G1900 represents a mid-range offering within this series.
Production Years:
The G1900 was primarily produced in the late 1990s and early 2000s. The manual covers this specific production timeframe.
