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Kubota L1501 Maintenance

The Kubota L1501 is a 2-wheel drive or 4-wheel drive sub-compact utility tractor. This model was manufactured from 1975 to 1978. The tractor was designed in 2 versions: L1501F (2WD) and L1501DT (4WD).

The Kubota L1501 tractor is equipped with a 45.3 cubic inches (0.7L) Kubota Z751 4-cycle 2-cylinder liquid cooled diesel engine. The engine has a cylinder bore of 3.00" (76 mm), piston stroke of 3.22" (82 mm), and rated power of 15 hp (11.2 kW). The mechanical transmission includes a dry clutch and unsynchronized gearbox with 16 forward and 4 reverse gears.

The maximum forward speed - 10 mph (16 kph), maximum reverse speed - 5 mph (8 kph). The open center hydraulic system used a gear pump with a rated capacity of 4.8 gpm (18.3 lpm). The hydraulic pressure is 147 bar (2130 psi). The Kubota L1501 is equipped with a manual steering system, independent mechanical brakes, 4.00x12 front tires, and 8.30x22 rear tires. The wheelbase is 54.8 (1380).

Refill Capacities
Engine oil capacity, gal (L) 1.0 (3.8)
Engine coolant capacity, gal (L) 1.4 (5.3)
Hydraulic/transmission fluid capacity (2WD), gal (L) 5.8 (22.0)
Hydraulic/transmission fluid capacity (4WD), gal (L) 6.1 (23.0)
Front axle oil capacity, qts (L) 2.0 (1.9)
Steering oil capacity, qts (L) 0.32 (0.30)

Recommended Oil and Fluid
Engine oil type SAE 30, SAE 10W, 10W-30, 20W-20. API Service category DS, DM
Engine coolant type Kubota Antifreeze/Coolant
Hydraulic/transmission fluid type Kubota UDT or Kubota Super UDT
Front axle oil type SAE 80, SAE 90, SAE 80W-90 Gear lube

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
Check battery and clean terminals Every 50 hours
Change engine oil Every 75 hours
Clean engine air filter element Every 100 hours
Clean engine fuel filter Every 100 hours
Inspect and adjust fan belt Every 100 hours
Replace engine oil filter Every 150 hours
Check steering oil level Every 150 hours
Replace hydraulic/transmission oil filter Every 300 hours
Change hydraulic/transmission fluid Every 300 hours
Change front axle oil Every 300 hours
Check and adjust engine idling Every 300 hours
Adjust parking and service brakes Every 300 hours
Change engine fuel filter element Every 400 hours
Clean radiator fins Every 400 hours
Replace engine air filter element Every 400 hours
Check and adjust valve clearance Every 600 hours
Flush cooling system and add new coolant Every 1000 hours

Replacement Parts
Engine oil filter part number 15213-32090
Engine fuel filter part number 15221-43170 (Element), 13251-41060 (Strainer)
Engine air filter part number 70000-11221
Hydraulic/transmission oil filter part number 34150-37710
Drive belt part number 15221-72530



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