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John Deere 5020 Maintenance

The John Deere 5020 is a two-wheel drive standard-tread tractor from New Generation series. This model was manufactured between 1965 and 1972. The John Deere 5020 tractor is equipped with John Deere 4-cycle six-cylinder liquid-cooled diesel engine.

A 531 cubic inches (8.7 L) engine has a cylinder bore of 4.75" (121 mm), piston stroke of 5.0" (127 mm), and rated power of 148 hp (109.6 kW). The Syncro-Range transmission consists of a dry clutch and partially synchronized gearbox with 8 forward and 2 reverse gears.

The maximum travel speed (forward/reverse): 17.9 mph (28.8 km/h) and 5.4 mph (8.7 km/h). The closed center hydraulic system used a gear pump with a flow rate of 22 gal/min (83.3 l/min). The main relief pressure is 155 bar (2250 psi). The John Deere 5020 was equipped with a power steering system, differential hydraulic wet disc brakes, 11.0x16 (Standard) or 9.5x20 (Row-Crop) front tires, and 24.5x32 (Standard) or 18.4x38 (Row-Crop) rear tires. The wheel base is 104 inches (2640 mm).

Refill Capacities
Engine oil capacity, gal (L) 5.0 (18.9)
Engine coolant capacity (with heater), gal (L) 8.7 (33.0)
Engine coolant capacity (w/o heater), gal (L) 8.2 (31.1)
Hydraulic/transmission system capacity, gal (L) 16.0 (60.6)
Fuel tank capacity, gal (L) 68.0 (257.7)

Recommended Oil and Fluid
Engine oil type Torq-Gard, SAE 30, SAE 10W-20, 5W-20. API Service category MS, DM
Engine coolant type JD Engine Cooling Fluid All Season
Hydraulic/Transmission fluid type JD 303 Special-Purpose Oil

Service Intervals
Clean battery and check electrolyte level Every 100 hours
Change engine oil Every 100 hours
Replace engine oil filter Every 200 hours
Check hydraulic/transmission fluid level Every 200 hours
Inspect and adjust fan belt Every 200 hours
Clean air cleaner dry element Every 200 hours
Replace engine fuel filter Every 600 hours
Check injection timing Every 600 hours
Replace hydraulic/transmission oil filter Every 600 hours
Check and adjust engine idling Every 600 hours
Check and adjust valve clearance Every 600 hours
Lubricate rear axle bearings Every 600 hours
Change hydraulic/transmission fluid Every 1200 hours
Replace air cleaner dry element Every 1200 hours
Clean and adjust front wheel bearings Every 1200 hours
Clean hydraulic pump valve filter Every 1200 hours
Clean fuel injectors Every 1200 hours
Flush cooling system and add new coolant Every 1500 hours

Replacement Parts
Engine oil filter part number AR75603, AR28271
Engine fuel filter part number AR44077
Engine air cleaner part number AR45784, AR45785
Hydraulic/transmission oil filter part number AR75603, AR28271




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