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Home / Farm Tractors / John Deere Tractors / JD 3020

John Deere 3020 Maintenance

The John Deere 3020 is a New Generation series row crop tractor. This model was manufactured from 1964 to 1972. The JD 3020 tractor is powered by 270 cubic inches (4.4 L) John Deere 4-cylinder water cooled diesel engine with a rated power of 77 hp (57 kW), or 227 cubic inches (3.7 L) John Deere 4-cylinder water cooled gasoline engine with a rated power of 76 hp (56.3 kW).

The John Deere 3020 was fitted with 2 types of transmission. Type 1: 8x2 syncro-range partially synchronized transmission. Type 2: Powershift transmission with 8 forward and 4 reverse gears.

The maximum forward speed - 19.5 mph (31.4 km/h), max. reverse speed - 6.2 mph (10 km/h). The closed center hydraulic system includes a gear pump with rated capacity of 14 gpm (53 lpm). The hydraulic system pressure is 145 bar (2100 psi). The tractor was equipped with 6.00x16 or 7.50x15 front tires and 13.6x38 or 15.5x38 rear tires. The wheelbase is 90" (2280 mm).

The John Deere 3020 is compatible with JD 48 loader with a liftting capacity to full height of 2400 lbs (1088 kg), or JD 148 loader with a lifting capacity to full height of 3100 lbs (1406 kg).

Refill Capacities
Engine oil capacity, gal (L) 2.0 (7.6)
Engine coolant capacity, gal (L) 4.75 (18.0)
Hydraulic system capacity (Syncro-range transmission), gal (L) 8.2 (30.9)
Hydraulic system capacity (Power-shift transmission), gal (L) 11.0 (41.6)
Belt pulley oil capacity, qts (L) 1.3 (1.2)
Final drive housing capacity (Hi-crop), qts (L) 1.75 (1.65)

Recommended Oil and Fluid
Engine oil type Torq-Gard, SAE 30, SAE 10W-30. API Service category MS, DM
Engine coolant type Cool-Gard Premix Coolant
Hydraulic/Transmission fluid type JD 303 Special-Purpose Oil
Belt pulley oil type JD 303 Special-Purpose Oil

Service Intervals
Check hydraulic/transmission fluid level Every 50 hours
Lubricate axle hub bearings Every 50 hours
Change engine oil Every 100 hours
Replace engine oil filter Every 200 hours
Inspect and adjust fan belt Every 200 hours
Check belt pulley oil level Every 200 hours
Clean air cleaner Every 200 hours
Clean battery and check electrolyte level Every 200 hours
Change engine fuel filter (diesel) Every 600 hours
Clean carburetor strainer screen (gasoline) Every 600 hours
Check injection timing (diesel) Every 600 hours
Clean or replace spark plug (gasoline) Every 600 hours
Replace hydraulic oil filter Every 600 hours
Change belt pulley oil Every 600 hours
Check and adjust engine idling Every 600 hours
Check and adjust valve clearance Every 600 hours
Change hydraulic/transmission fluid Every 1200 hours
Clean and adjust wheel bearings Every 1200 hours
Clean hydraulic pump valve filter Every 1200 hours
Change final drive housing oil (Hi-crop) Every 1200 hours
Flush cooling system and add new coolant Every 1500 hours

Replacement Parts
Engine oil filter part number AR26350
Engine fuel filter part number AR44077, AR45098 (diesel), AR50141 (gasoline)
Engine air cleaner part number AR39798 (diesel), AH19848 (gasoline)
Hydraulic/transmission oil filter part number AR75603
Hydraulic filter element part number R27173

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