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Kubota L3430 Maintenance

The Kubota L3430 is a L30-series compact utility tractor. This model was manufactured between 2003 and 2007. The tractor was designed in 3 versions: L3430DT (4WD, 8-speed), L3430HST (Hydro), and L3430HSTC (Cab, hydro).

The Kubota L3430 driveline consists of a 100.5 cu.in (1.65 L) Kubota D1703 three-cylinder indirect injection diesel engine and 8x8 Sync Shuttle fully synchronized transmission (FST), or 3-range hydrostatic transmission with infinite forward and reverse gears. The engine has a cylinder bore of 3.4" (87 mm), piston stroke of 3.6" (92.4 mm), and rated power of 33.6 hp (25.1 kW).

Max. travel speed (forward/reverse): 19.2 mph (31 km/h) and 16 mph (25.8 km/h). The open center hydraulic system includes a gear pump with fluid flow rate of 8.3 gallons per minute (31.5 liters per minute). The hydraulic system pressure is 177 bar (2560 psi). The Kubota L3430 is equipped with a hydrostatic power steering, wet disc brakes, 7.00x16 front tires, and 12.4x24 rear tires. The wheel base is 71.1" (1805 mm).

The tractor is compatible with the following attachments: Kubota LA723 loader with 72" (1820 mm) bucket and max lift height of 102.4" (2600 mm), or Kubota LA513 loader with 66" (1670 mm) bucket and max lift height of 96.5" (2450 mm).

Refill Capacities
Engine oil capacity, gal (L) 1.5 (5.7)
Engine coolant capacity, gal (L) 1.6 (6.0)
Hydraulic/transmission fluid capacity, gal (L) 11.1 (42.0)
Front axle oil capacity, gal (L) 1.7 (6.5)

Recommended Oil and Fluid
Engine oil type SAE 20, SAE 30, SAE 10W, 10W-30, 10W-40. API Service category CD, CE, CF
Engine coolant type Kubota Antifreeze/Coolant
Hydraulic/transmission fluid type Kubota UDT or Kubota Super UDT
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
Service engine fuel filter element Every 100 hours
Check battery and clean terminals Every 100 hours
Inspect and adjust fan belt Every 100 hours
Adjust parking and service brakes Every 100 hours
Change engine oil Every 100 hours
Replace engine oil filter Every 200 hours
Replace hydraulic/transmission oil filter Every 200 hours
Check power steering oil line Every 200 hours
Check and adjust engine idling Every 200 hours
Clean radiator fins Every 300 hours
Change hydraulic/transmission fluid Every 400 hours
Change front axle oil Every 400 hours
Replace engine fuel filter Every 400 hours
Replace primary engine air filter element Every 600 hours
Replace secondary 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 HH164-32430
Engine fuel filter part number 15521-43160 (Element)
Primary engine air filter part number TA040-93230
Secondary engine air filter part number TA040-93220 (Element)
Hydraulic oil filter part number HHTA0-37710
Drive belt part number 15469-97010



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