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Kubota B3150 Maintenance

The Kubota B3150 is a 4WD compact utility tractor from B50 series. This model was manufactured between 2014 and 2020. The Kubota B3150 driveline includes a 91.5 cu.in (2 L) Kubota V1505 vertical 4-cylinder indirect injection water-cooled diesel engine and 3-range hydrostatic transmission with infinite forward and reverse gears.

The engine has a cylinder bore of 3.09" (78 mm), piston stroke of 3.10" (79 mm), and rated power of 28 hp (20.9 kW). Max. travel speed (forward and reverse): 11.5 mph (18.5 km/h) / 9 mph (14.5 km/h).

The open center hydraulic system used a gear pump with fluid flow rate of 8.7 gpm (33.1 lpm). The hydraulic system pressure is 161.8 bar (2347 psi). The Kubota B3150 is equipped with a hydrostatic power steering, wet disc brakes, 7.00x12 or 24x8.50-12 front tires, and 12.4x16 or 13.6x16 rear tires. The wheel base is 65.6" (1666 mm). The tractor is compatible with the following attachments: 54", 60" mid-mount 3-blade mower decks with cutting height of 1.5-4.0 in (30-100 mm), and Kubota LA534EC loader with lift capacity to full height of 1146 lbs (519 kg).

Refill Capacities
Engine oil capacity, gal (L) 1.05 (4.0)
Engine coolant capacity (ROPS), gal (L) 1.1 (4.3)
Engine coolant capacity (Cab), gal (L) 1.4 (5.4)
Hydraulic/transmission fluid capacity, gal (L) 4.0 (15.0)
Front axle oil capacity, gal (L) 1.25 (4.7)

Recommended Oil and Fluid
Engine oil type SAE 30, SAE 10W-30, 15W-40. API Service category CF-4, CG-4, CH-4, CI-4
Engine coolant type Kubota Antifreeze/Coolant
Hydraulic/transmission fluid type Kubota UDT or Kubota Super UDT Fluid
Front axle oil type Kubota UDT, SAE 80, SAE 80W-90 Gear Oil

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
Clean engine air filter elements 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
Adjust parking and service brakes Every 100 hours
Change engine oil Every 200 hours
Replace engine oil filter Every 200 hours
Replace hydrostatic transmission oil filter Every 200 hours
Clean cab air filters Every 200 hours
Clean power steering oil line Every 200 hours
Adjust toe-in Every 200 hours
Check and adjust engine idling Every 200 hours
Replace hydraulic oil filter Every 400 hours
Change hydraulic/transmission fluid Every 400 hours
Change front axle oil Every 400 hours
Replace engine fuel filter Every 400 hours
Clean radiator fins Every 400 hours
Check and adjust valve clearance Every 800 hours
Replace primary engine air filter Every 1000 hours
Replace secondary engine air filter Every 1000 hours
Check fuel injection nozzle Every 1500 hours
Flush cooling system and add new coolant Every 2000 hours

Replacement Parts
Engine oil filter part number HH160-32093
Engine fuel filter part number 6A320-58862, 6A320-59930 (Element)
Primary engine air filter part number 6C060-99410 (Element)
Secondary engine air filter part number 32721-58242 (Element)
Cab air filter part number T1855-71600, 6C430-75210
HST transmission oil filter part number HH660-36060
Hydraulic oil filter part number HH670-37710
Drive belt part number 16206-97013 (ROPS), 6C430-59280 (Cab)



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