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Kubota B6000 Maintenance

The Kubota B6000 sub compact utility tractor was manufactured between 1973 and 1977. This model was designed in two versions: B6000E (2WD) and B6000D (4WD). The Kubota B6000 tractor is equipped with a 35.2 cu.in (577 cc) Kubota ZL600 vertical two-cylinder naturally aspirated water-cooled diesel engine with a rated power of 12.5 hp (9.3 kW) and 32.9 Nm (24.4 lb-ft) of maximum torque at 2000 rpm.

The manual shift transmission consists of a dry single plate clutch and unsynchronized gearbox with 6 forward and 2 reverse gears. Max. travel speed (forward and reverse): 7.7 mph (12.5 kph) / 4.2 mph (6.7 kph). The open center hydraulic system includes a gear pump with a rated capacity of 2.8 gpm (10.8 lpm).

The main relief pressure is 83 bar (1200 psi). The 2WD models are equipped with 4.00x9 front tires and 7.00x16 rear tires. The 6.00x12 or 20x8.00-10 front tires and 7.00x16 or 27x8.50-15 rear tires are used for 4WD tractors. The wheel base is 47.2" (1200 mm) for models with 2-wheel drive and 45.5" (1160 mm) for models with 4-wheel drive.

Refill Capacities
Engine oil capacity, gal (L) 0.53 (2.0)
Engine coolant capacity, gal (L) 0.8 (3.0)
Hydraulic/transmission fluid capacity, gal (L) 2.4 (9.0)
Front axle oil capacity, qts (L) 0.75 (0.70)
Steering oil capacity, qts (L) 0.21 (0.20)

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 equivalent
Front axle oil type Gear lube SAE 80, SAE 80W-90

Service Intervals
Check battery and clean terminals Every 50 hours
Check front axle oil level Every 50 hours
Check hydraulic/transmission fluid level Every 50 hours
Check steering oil level Every 50 hours
Lubricate axle hub bearings Every 50 hours
Change engine air cleaner oil Every 75 hours
Change engine oil Every 75 hours
Clean engine fuel filter Every 100 hours
Inspect and adjust fan belt Every 100 hours
Replace engine oil filter Every 300 hours
Replace hydraulic/transmission oil filter Every 300 hours
Change hydraulic/transmission fluid Every 300 hours
Change front axle oil Every 300 hours
Change steering oil Every 300 hours
Check and adjust engine idling Every 300 hours
Adjust parking and service brakes Every 300 hours
Clean radiator fins Every 300 hours
Change engine fuel filter element Every 500 hours
Check and adjust valve clearance Every 500 hours
Flush cooling system and add new coolant Every 1000 hours

Replacement Parts
Engine oil filter part number 15231-32010
Engine fuel filter part number 1T021-43560 (Element)
Hydraulic/transmission oil filter part number 66591-36224
Drive belt part number 70000-73818



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