Intended Users:
Professional mechanics, tractor service technicians, and DIY owners seeking comprehensive repair and maintenance information for the Kubota B1750.
Key Benefits:
Detailed procedures and specifications that facilitate accurate repairs, maintenance, and troubleshooting, ensuring reliable operation and longevity of the tractor.
Model Advantages:
Kubota B1750 is known for its compact size, versatility, and durable construction, making it a popular choice for small farms and landscaping applications.
Coverage:
Complete tear-down and rebuild instructions for the engine, transmission, hydraulics, electrical components, and mower deck with precise specifications.
Included Diagrams:
Detailed wiring diagrams, hydraulic schematics, and exploded views for part identification.
Maintenance Information:
Service schedules, fluid capacities, and torque values for routine upkeep.
Engine Mechanical:
Inspection, removal, disassembly, component servicing, reassembly, and installation with torque specifications and clearance checks.
Cooling System:
Radiator, water pump, thermostat, and coolant flow diagrams.
Fuel System:
Fuel tank, fuel lines, fuel filter, injection pump, injectors, and fuel system bleeding procedures.
Exhaust System:
Exhaust manifold, muffler, and mounting components.
Electrical System:
Complete wiring diagrams, starting and charging system, lights, switches, and relays.
Steering System:
Manual steering gear, tie rod ends, and steering column components.
Brakes:
Hydraulic brake system, brake discs, master cylinder, and brake pedal adjustments.
Transmission:
Main gearbox, shuttle shift, and rear axle, including gear ratios, lubrication, and adjustment procedures.
Clutch:
Single stage clutch system, release mechanisms, and adjustment.
Four-Wheel Drive (if equipped):
Front axle assembly, driveshaft, and actuator troubleshooting for 4WD models.
Power Take-off (PTO):
Rear PTO assembly, independent and live PTO clutch adjustments.
Hydraulic System:
Pump, lift arm assembly, three-point hitch control, oil cooler, relief valves, and hydraulic filter maintenance.
Mower Deck:
Deck removal, installation, blade replacement, belt adjustments, and deck leveling.
Wheels and Tires:
Tire sizes, wheel bolt torque, and tire repair or replacement guidelines.
Body and Chassis:
Frame inspection, cowling and hood adjustments, and fastener torque values.
Supplementary Restraint System:
N/A - not applicable for this agricultural tractor.
Troubleshooting Guidance:
Diagnostic charts and symptom-based troubleshooting for each system.
Disassembly and Reassembly:
Step-by-step procedures with component inspection and measurement specs.
Maintenance Tasks:
Routine service jobs including fluid changes, filter replacements, lubrication, and adjustments.
Special Procedures:
Includes timing belt/chain (if applicable), valve adjustments, injection pump timing, and hydraulic bleeding.
Technical Depth and Parts
Technical Depth:
Comprehensive details with precise specifications, clearances, and wear limits required for complete rebuilds.
Parts Information:
Exploded views and part numbers to aid in ordering genuine Kubota replacement parts.
Special Tools Guide:
Lists the necessary special tools per procedure where applicable.
Primary Engine:
Kubota D950 diesel engine, liquid-cooled, 3-cylinder, displacement approximately 0.9 L (905 cc).
Engine Options Range:
Standard B1750 came with the D950; no major alternative engines were offered for this model.
Power Output:
17-18 horsepower (approximately) at rated engine speed (information based on Kubota B1750 specs).
Rated Speed:
2700 rpm (typical for that era).
Fuel Injection:
Indirect injection system with a mechanically governed inline fuel injection pump.
Cooling:
Liquid-cooled via radiator
Standard Transmission:
8 forward and 4 reverse gears with sliding mesh or synchronized gears (typical for the B1750).
Optional Transmission:
A shuttle shift transmission was available, providing easy direction reversals.
Two-Wheel or Four-Wheel Drive:
Both 2WD and 4WD versions were available, with mechanical front-wheel drive engagement.
Clutch:
Dry single-disc clutch
Gear Shifting:
Manual gear shift lever with optional synchronized shuttle
PTO:
Independent and live PTO options, with 540 rpm rear PTO.
Engine Oil:
Change engine oil every 100 hours or annually, whichever comes first.
Hydraulic Fluid:
Replace hydraulic oil every 400 hours with filter change.
Transmission Oil:
Change transmission fluid every 400 hours or as specified.
Air Filters:
Clean or replace as needed; inspect every 10 hours in dusty conditions.
Fuel Filter:
Replace annually or every 200 hours.
Coolant:
Replace every 2 years.
Engine Oil Capacity:
Approximately 3.1 liters (with filter) of API CF/SJ grade oil (SAE 10W-30 or 15W-40).
Transmission Fluid:
Kubota UDT hydraulic/transmission fluid; capacity about 10 L (varies with 4WD).
Hydraulic System:
Uses same UDT fluid; capacity includes transmission sump.
Coolant Capacity:
Approximately 2.0 liters.
Known Issues and Common Wear Items
Common Wear Items:
Mower blades, belts, hydraulic filters, hoses, and tie rod ends due to age.
Potential Concerns:
Engine cylinder head gasket leaks, glow plug failure, and worn steering gear seals (in older units). Check for oil leaks and tightened bolts regularly.