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Kubota L2501HST Maintenance

The Kubota L2501HST is a 4-wheel drive utility compact tractor. This model was manufactured from 2014 to 2021. The Kubota L2501HST powertrain system components: Kubota D1703-M-DI-E4 4-cycle vertical 3-cylinder direct injection naturally aspirated water-cooled diesel engine and 3-range hydrostatic transmission with infinite forward and reverse gears.

A 100.5 cubic inches (1.65L) engine has a cylinder bore of 3.43" (87 mm), piston stroke of 3.64" (92.4 mm), rated power of 24.8 hp (18.5 kW), and maximum torque of 95.2 Nm (70.2 lb-ft) at 1500 rpm. The maximum forward speed - 3.2 mph (5.1 km/h) using low range or 11.5 mph (18.5 km/h) using high range, maximum reverse speed - 2.9 mph (4.6 km/h) using low range or 10.3 mph (16.6 km/h) using high range. The open center hydraulic system used a gesr pump with a flow of 5.2 gal/min (19.5 l/min). The hydraulic pressure is 152 bar (2205 psi).

The Kubota L2501HST is equipped with an integral power steering, wet disc brakes, 7.2x16 (AG) or 27x8.50-15 (Industrial) front tires, and 11.2x24 (AG) or 15x19.5 (Industrial) rear tires. The wheel base is 63.3" (1610 mm). The tractor is compatible with a Kubota LA525 front-end loader with lift capacity to full height of 1131 lbs (513 kg), and Kubota BH77 backhoe with 2-ft flat digging depth of 89.8" (2280 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) 6.2 (23.5)
Front axle oil capacity, gal (L) 1.2 (4.5)

Recommended Oil and Fluid
Engine oil type SAE 30, 10W-30, 15W-40. API Service category CF, CF-4, CG-4, CH-4, CI-4
Engine coolant type Kubota Antifreeze/Coolant
Hydraulic/transmission fluid type Kubota Super UDT-2 Fluid
Front axle oil type Kubota Super UDT-2, 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 element Every 100 hours
Clean 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
Check and adjust engine idling Every 200 hours
Check and adjust toe-in Every 200 hours
Change engine oil Every 400 hours
Replace engine oil filter Every 400 hours
Replace hydraulic oil filter Every 400 hours
Replace hydrostatic transmission filter Every 400 hours
Replace engine fuel filter Every 400 hours
Change hydraulic/transmission fluid Every 400 hours
Change front axle oil Every 800 hours
Check power steering oil line Every 800 hours
Check and adjust valve clearance Every 800 hours
Replace engine air filter element Every 1000 hours
Check transmission oil cooler line Every 1000 hours
Clean fuel injection nozzles Every 1500 hours
Flush cooling system and add new coolant Every 2000 hours

Replacement Parts
Engine oil filter part number HH164-32430
Engine fuel filter part number 6A320-59930 (Element)
Engine air filter part number TA040-93230
Hydraulic oil filter part number HH3A0-82623
Hydrostatic transmission filter part number HHK70-14070
Drive belt part number 15469-97010



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