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Kubota L4150 Maintenance

The Kubota L4150 is a L-series compact utility tractor. This model was manufactured from 1984 to 1990. The tractor was designed in 2 versions: L4150F (2WD) and L4150DT (4WD). The Kubota L4150 is equipped with a 141.9 cu.in (2.3L) Kubota F2302-DI 4-cycle 5-cylinder naturally aspirated liquid cooled diesel engine with a rated power of 50 hp (37.3 kW).

The transmission includes a single dry type clutch and partially synchronized gearbox with 8 forward and 8 reverse gears. Max forward speed - 15.4 mph (24.8 km/h), maximum reverse speed - 15.2 mph (24.5 km/h).

The open center hydraulic system includes a gear pump with a rated capacity of 9 gallons per minute (34.1 liters per minute). The main relief pressure is 172.5 bar (2500 psi). The 2-wheel drive models are equipped with 6.50x16 front tires and 14.9x28 rear tires. The 9.50x20 front tires and 14.9x28 rear tires are used for tractors with 4-wheel drive. The wheel base is 76.4" (1940 mm). The tractor is compatible with a Kubota BF900 loader with maximum lift height of 111.4" (2820 mm), and Kubota L4540 backhoe with digging depth of 123" (3120 mm).

Refill Capacities
Engine oil capacity, gal (L) 2.4 (9.0)
Engine coolant capacity, gal (L) 2.0 (7.5)
Hydraulic/transmission fluid capacity, gal (L) 11.3 (43.0)
Front axle oil capacity, gal (L) 2.25 (8.5)

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 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 100 hours
Clean engine air filter element Every 100 hours
Clean engine fuel filter element Every 100 hours
Change engine oil Every 200 hours
Replace hydraulic oil filter Every 200 hours
Check battery and clean terminals Every 200 hours
Inspect and adjust fan belt Every 200 hours
Adjust parking and service brakes Every 200 hours
Check power steering oil line Every 200 hours
Check and adjust engine idling Every 200 hours
Change hydraulic/transmission fluid Every 300 hours
Change front axle oil Every 300 hours
Replace engine oil filter Every 400 hours
Replace engine fuel filter Every 400 hours
Check and adjust valve clearance Every 800 hours
Check fuel injection nozzles Every 800 hours
Replace engine air filter element Every 1000 hours
Flush cooling system and add new coolant Every 1000 hours

Replacement Parts
Engine oil filter part number HH164-32430, 15402-32430
Engine fuel filter part number 15521-43160 (Element)
Engine fuel filter gasket part number 04811-50650 and 04816-00160
Engine air filter part number 70000-11080, 17381-11180
Hydraulic oil filter part number 36330-82630
Drive belt part number 15196-97010



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