John Deere industrial tractors

John Deere 300B

The John Deere 300B is an industrial tractor produced from 1974 to 1983. It was built in Dubuque, Iowa, USA. It features a 2.5L 3-cylinder engine available in diesel or gasoline versions, producing 43 hp net and 46 hp gross. The tractor has an 8-speed power shuttle transmission, two-wheel drive, and hydraulic wet disc brakes. It includes a four-post ROPS for operator safety. The hydraulics system is closed center with 2350 psi pressure and 28 gpm pump flow. Dimensions include a 77 inch wheelbase, 184.2 inch length, and weights ranging from 7450 lbs (loader-tractor) to 10650 lbs (backhoe). Attachments include front-end loaders and backhoes with detailed specifications for lift capacity, digging depth, and forces.

Power-

Founded-

Model300B

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Technical Specifications

Detailed specifications and technical data for John Deere 300B

Power

Engine	43 hp (32.1 kW)
Engine (net)	43 hp (32.1 kW)
Engine (gross)	46 hp (34.3 kW)

Engine

Torque	110 lb-ft (149.2 Nm)
Starter	electric
Fuel tank	19.5 gal (73.8 L)
Rated RPM	2500
Torque RPM	1300
Air cleaner	dry
Bore/Stroke	3.86x4.33 inches (98 x 110 mm)
Compression	16.2:1
Power (net)	43 hp (32.1 kW)
Displacement	152 ci (2.5 L)
Oil capacity	9 qts (8.5 L)
Diesel engine	John Deere, diesel, 3-cylinder, liquid-cooled
Power (gross)	46 hp (34.3 kW)
Starter volts	12
Engine options	John Deere 2.5L 3-cyl diesel, John Deere 2.5L 3-cyl gasoline
Gasoline engine	John Deere, gasoline, 3-cylinder, liquid-cooled
Coolant capacity	12 qts (11.4 L)
Gasoline engine power	43 hp (32.1 kW)
Gasoline engine torque	110 lb-ft (149.2 Nm)
Intake valve clearance	0.014 inches (0.356 mm)
Exhaust valve clearance	0.018 inches (0.457 mm)
Gasoline engine rated RPM	2500
Gasoline engine torque RPM	1300
Gasoline engine bore/stroke	3.86x4.33 inches (98 x 110 mm)
Gasoline engine displacement	152 ci (2.5 L)
Gasoline engine oil capacity	9 qts (8.5 L)
Gasoline engine coolant capacity	12 qts (11.4 L)
Gasoline engine intake valve clearance	0.014 inches (0.356 mm)
Gasoline engine exhaust valve clearance	0.022 inches (0.559 mm)

Dimensions

Width	80 inches (203 cm)
Length	184.2 inches (467 cm)
Weight	7450 lbs (loader-tractor) (3379 kg), 10650 lbs (backhoe) (4830 kg)
Wheelbase	77 inches (195 cm)
Height (ROPS)	90.8 inches (230 cm)
Height (exhaust)	90 inches (228 cm)

Hydraulics

Type	closed center
Pressure	2350 psi (162.0 bar)
Pump flow	28 gpm (106.0 lpm)

Mechanical

ROPS	Four-post ROPS
Drive	Two-wheel drive
Brakes	Hydraulic wet disc brakes
Final drives	inboard planetary

Production

Type	Industrial tractor
Built in	Dubuque, Iowa, USA
Manufacturer	John Deere
Years produced	1974 - 1983

Attachments

Types	front-end loader, backhoe
Backhoe types	John Deere 9250 Backhoe, John Deere 9250A Backhoe
Loader dump time	1.6s
Backhoe swing arc	180°
Loader dump angle	45°
Loader lower time	2.0s
Loader raise time	3.7s
Loader bucket width	81.125 inches (206 cm)
Backhoe bucket force	7409 lbs (3360 kg)
Loader lift capacity	3300 lbs (1496 kg) full at 500mm
Backhoe digging depth	164 inches (416 cm)
Loader breakout force	5000 lbs (2268 kg)
Loader reach (dumped)	28 inches (71 cm)
Backhoe loading height	135 inches (342 cm)
Loader height (at pin)	122 inches (309 cm)
Backhoe reach from pivot	209 inches (530 cm)
Backhoe transport height	131 inches (332 cm)
Backhoe dipperstick force	4198 lbs (1904 kg)
Loader clearance (dumped)	98 inches (248 cm)
Loader rollback (ground line)	20°
Backhoe 2-Foot flat digging depth	163 inches (414 cm)
Backhoe 8-Foot flat digging depth	150 inches (381 cm)