John Deere

John Deere 3020

The John Deere 3020 is a row-crop tractor produced from 1964 to 1972 as part of the New Generation Series. It was manufactured in Waterloo, Iowa, USA and Mexico. The tractor was available with gasoline, diesel, and LP gas 4-cylinder engines. It features a two-wheel drive with planetary final drives, mechanical rear differential lock (optional), power assist steering, and differential hydraulic wet disc brakes. The 3020 offers 8-speed partially synchronized or full power shift transmissions. It has a drawbar power of 57 hp claimed and tested up to 63.13 hp, with PTO power up to 71.26 hp tested. The tractor has a wheelbase of 90 inches and weighs between 7139 to 7945 pounds depending on fuel type, with ballasted weight up to 9585 pounds. It supports various front and rear tire sizes and has a rear Type II hitch. The PTO is independent with 540/1000 RPM options. Hydraulic system is closed center with 2100 psi pressure and 14 gpm total flow. Attachments include loaders such as the John Deere 148, 146, and 48 loaders with various lift capacities and bucket sizes.

Power77 hp[P]

Founded1964 - 1972

Model3020

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Technical Specifications

Detailed specifications and technical data for John Deere 3020

Power

PTO (tested)	71.26 hp (53.1 kW)
PTO (claimed)	70 hp (Syncro-Range) (52.2 kW), 65 hp (Powershift) (48.5 kW)
Drawbar (tested)	63.13 hp (47.1 kW)
Drawbar (claimed)	57 hp (42.5 kW)

Engine

Point gap	0.022 inches (0.559 mm)
Rated RPM	2500
Air cleaner	oil bath
Bore/Stroke	4.25x4.00 inches (108 x 102 mm)
Compression	7.5:1
Displacement	227 ci (3.7 L)
Firing order	1-3-4-2
Oil capacity	9 qts (8.5 L)
Operating RPM	1500-2500
Sparkplug gap	0.025 inches (0.635 mm)
Starter volts	12
Engine options	John Deere 3.7L 4-cyl gasoline; John Deere 4.4L 4-cyl diesel; John Deere 3.7L 4-cyl LP gas
Gasoline engine	4-cylinder, liquid-cooled inline
Intake valve clearance	0.015 inches (0.381 mm)
Exhaust valve clearance	0.028 inches (0.711 mm)

Weight

Shipping	7139 lbs (gas) (3238 kg), 7300 lbs (LP-gas) (3311 kg), 7342 lbs (diesel) (3330 kg)
Ballasted	9585 lbs (4347 kg)
Operating	7695 lbs (gas) (3490 kg), 7945 lbs (diesel) (3603 kg)

Capacity

Fuel	29 gal (109.8 L)
LP-Gas Fuel	33.6 gal (127.2 L)
Power Shift Hydraulic system	11 gal (41.6 L)
Syncro-Range Hydraulic system	8 gal (30.3 L)

Variants

500	industrial tractor

Electrical

Ground	positive (12V), floating (24V)
Batteries	1 (12V), 2 (24V)
Battery volts	12
Charging system	generator

Hydraulics

Type	closed center
Valves	1
Pressure	2100 psi (144.8 bar)
SCV flow	6 gpm (22.7 lpm)
Total flow	14 gpm (53.0 lpm)
Power Shift Capacity	11 gal (41.6 L)
Syncro-Range Capacity	8 gal (30.3 L)

Mechanical

Drive	Two-wheel drive
Brakes	Differential hydraulic wet disc brakes
Steering	power assist
Final drives	planetary
Operator station	Open operator station
Differential lock	mechanical rear Optional

Production

Type	Row-Crop tractor
Series	New Generation Series
Factories	Waterloo, Iowa, USA; Mexico
Years made	1964 - 1972
Total built	74,463 (Row Crop), 6,307 (Standard), 1,314 (Row-Crop Utility), 508 (High-Crop), 324 (Special Utility), 139 (Orchard)
Original price	$10,000 in 1972

Attachments

48 Loader	2400 lbs lift (full at pin) (1088 kg), 3600 lbs breakout (1632 kg), 39° dump, 26 inches reach (dumped) (66 cm), 68 inches reach (ground) (172 cm), 9° rollback (ground line), 126 inches height (at pin) (320 cm), 104 inches clearance (dumped) (264 cm), weight: 1220 lbs (553 kg), Bucket width: 60 inches (152 cm), 72 inches (182 cm)
148 Loader	3100 lbs lift (full at pin) (1406 kg), 4700 lbs breakout (2131 kg), 38° dump, 32 inches reach (dumped) (81 cm), 11° rollback, 126 inches height (at pin) (320 cm), 102 inches clearance (dumped) (259 cm), 121 inches clearance (level) (307 cm), boom cyl: 2.5 inches (6 cm), bucket cyl: 2.5 inches (6 cm), weight: 1350 lbs (612 kg), Bucket width: 60 inches (152 cm), 72 inches (182 cm), 84 inches (213 cm), 96 inches (243 cm), Bucket capacity: 0.5 cu yd (0.4 cu m), 0.6 cu yd (0.5 cu m), 0.8 cu yd (0.6 cu m), 0.9 cu yd (0.7 cu m)
Attachment overview	John Deere 148 loader, John Deere 146 loader, John Deere 48 loader

Transmission

Types	8-speed partially synchronized; 8-speed full power shift

Tractor hitch

Rear Type	II

Dimensions & Tires

Width	89.625 inches (227 cm)
Length	138.5 inches (351 cm)
Rear tire	13.6-38, 15.5-38
Wheelbase	90 inches (228 cm)
Front tire	6.00-16, 7.50-15, 7.50-16 (single), 11.00-12 (single)
Rear tread	60 to 91 inches (152 to 231 cm), 60 to 97 inches (152 to 246 cm) (long axle), 60 to 113 inches (152 to 287 cm) (extra long axle)
Bar rear axle	3.125 by 91 inches (79 by 2311 mm), 3.125 by 104 inches (79 by 2641 mm), 3.125 by 120 inches (79 by 3048 mm)
Height (exhaust)	87.5 inches (222 cm)
Height (steering wheel)	75.5 inches (191 cm)