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Kubota B1400 Maintenance

The Kubota B1400 is a 2-wheel drive or 4-wheel drive sub-compact utility tractor from B00 series. This model was manufactured between 1979 and 1982. The Kubota B1400 is equipped with a 52.2 cubic inches Kubota D850L 4-cycle vertical 3-cylinder water-cooled diesel engine.

The engine has a cylinder bore of 2.86" (72 mm), piston stroke of 2.78" (70 mm), and rated power of 14 hp (10.4 kW). The selective sliding gear transmission consists of a dry single clutch and gearbox with 6 forward and 2 reverse speeds.

The maximum forward speed - 7.9 mph (12.6 km/h), maximum reverse speed - 4.4 mph (7.1 km/h). The open center hydraulic system used a gear pump with a rated capacity of 3.7 gpm (14 lpm). The Kubota B1400 tractor was equipped with 5.00x12 front tires and 8.00x16 rear tires. The wheelbase is 49.2" (1240 mm) for B1400 (2WD) models and 49.6" (1250 mm) for D1400DT (4WD) models.

Refill Capacities
Engine oil capacity, gal (L) 0.9 (3.4)
Engine coolant capacity, gal (L) 0.9 (3.4)
Hydraulic/transmission fluid capacity, gal (L) 4.5 (17.0)
Front axle oil capacity, qts (L) 1.6 (1.5)

Recommended Oil and Fluid
Engine oil type SAE 20, SAE 30, SAE 10W, 10W-30. API Service category CC, CD
Engine coolant type Kubota Antifreeze/Coolant
Hydraulic/transmission fluid type Kubota UDT or Super UDT
Front axle oil type Gear lube SAE 80, SAE 80W-90

Service Intervals
Check hydraulic/transmission fluid level Every 50 hours
Check front axle oil level Every 50 hours
Lubricate axle hub bearings Every 50 hours
Change engine oil Every 100 hours
Clean engine air filter element Every 100 hours
Clean engine fuel filter Every 100 hours
Inspect and adjust fan belt Every 100 hours
Check battery and clean terminals Every 100 hours
Replace engine oil filter Every 150 hours
Replace hydraulic/transmission oil filter Every 300 hours
Change hydraulic/transmission fluid Every 300 hours
Change front axle oil Every 300 hours
Check and adjust engine idling Every 300 hours
Adjust parking and service brakes Every 300 hours
Change engine fuel filter Every 400 hours
Clean radiator fins Every 500 hours
Replace engine air filter element Every 600 hours
Check and adjust valve clearance Every 800 hours
Flush cooling system and add new coolant Every 1000 hours

Replacement Parts
Engine oil filter part number 15241-32090
Engine fuel filter part number 15231-43560 (Element)
Engine air filter part number 15501-11220
Hydraulic/transmission oil filter part number 66021-36390
Hydraulic/transmission filter gasket part number 04811-10300
Drive belt part number 70000-73783



Farm Tractors Technical Specifications
JD 1026R JD 3650 JD 6400 JD 7810
FORD 1320 FORD 2810 FORD 3930 FORD 5600
MF 250 MF 690 MF 3060 MF 6180
NH TC48DA NH M100 NH T7550 NH 8560
CASE IH 495 CASE IH 1255XL CASE IH 2140 CASE IH 2294