John Deere 8770

The John Deere 8770 is a tractor produced by John Deere. It is equipped with a 619 ci 10.1 L engine. The rated power output is 300 hp 223.7 kW. Transmission: Power Shift. Operating weight: 32,960 lbs 14950 kg.

Overview

	1993 - 1996 8070 SeriesFour-wheel Drive (4WD) tractor
1993 - 1996
8070 Series
Four-wheel Drive (4WD) tractor

Production
Manufacturer	John Deere
Four-wheel Drive (4WD) tractor
Built in Waterloo, Iowa, USA
Original price	$114,945

John Deere 8770 Engine
John Deere 10.1L 6-cyl diesel
Engine details ...

John Deere 8770 Power
Engine (gross)	300 hp 223.7 kW
PTO (claimed)	256 hp 190.9 kW
Drawbar (tested)	242.52 hp 180.8 kW
PTO (tested)	259.31 hp 193.4 kW
Performance test details ...

Mechanical
Four-wheel drive
Final drives	inboard planetary
Steering	hydrostatic power
Hydraulic wet discs brakes
Sound-Gard cab standard.

Capacity
Fuel	220 gal 832.7 L
Hydraulic system	38 gal 143.8 L

Hydraulics
Type	closed center pressure compensated
Capacity	38 gal 143.8 L
Pressure	2530 psi 174.4 bar
Rear valves	3 to 5
Pump flow	44.8 gpm 169.6 lpm
SCV flow	33.3 gpm 126.0 lpm

Tractor hitch
Rear Type	3 (optional)
Control	draft sensing
Rear lift	14,980 lbs 6794 kg

Power Take-off (PTO)
Rear PTO	independent OptOptional
Clutch	hydraulic wet disc
Rear PTO Type	1000 (1.75)

Dimensions & Tires
Wheelbase	134 inches 340 cm
Weight	31438 to 32960 pounds
Front tire	24.5R-32
Rear tire	24.5R-32
Full dimensions and tires ...

Electrical
Ground	negative
Batteries	2
Battery CCA	925
Battery volts	12

References
250- to 400-HP 70 Series Tractors published in 1995, by John Deere

Engine

Engine Detail — 619 ci / 10.1 L Diesel

Manufacturer	John Deere
Configuration	turbocharged aftercooled diesel, 6-cylinder, liquid-cooled
Displacement	619 ci 10.1 L
Bore/Stroke	5.12x5.00 inches 130 x 127 mm
Power (gross)	300 hp 223.7 kW
Air cleaner	dual paper elements with aspirator
Compression	15.75:1
Rated RPM	2100
Starter volts	12
Oil capacity	33.8 qts 32.0 L
Coolant capacity	58 qts 54.9 L

Transmission

Transmission options
12-speed partially synchronized
24-speed two-speed power shift
12-speed full power shift

Transmission — Syncro

Transmission	Syncro
Type	partially synchronized
Gears	12 forward and 3 reverse
Clutch	PermaClutch hydraulic wet disc
Three synchronized gears (1-3) in four ranges (A-D).

Transmission — PowrSync

Transmission	PowrSync
Type	two-speed power shift
Gears	24 forward and 6 reverse
Clutch	hydraulic wet disc
Six gears (1-6) in four ranges (A-D). Power shift between gear pairs 1/2, 3/4, and 5/6. Synchronized shifting between other gears and ranges.

Transmission — Power Shift

Transmission	Power Shift
Type	full power shift
Gears	12 forward and 2 reverse
Clutch	hydraulic wet disc

Dimensions

John Deere 8770 Tires
Ag front	24.5R-32
	18.4R-38
	20.8R-38
	710/70R38
	18.4R-42
	20.8R-42
	18.4R-46
Ag rear	24.5R-32
	18.4R-38
	20.8R-38
	710/70R38
	18.4R-42
	20.8R-42
	18.4R-46

Dimensions
Wheelbase	134 inches 340 cm
Length	268.9 inches 683 cm
Weight	32,960 lbs 14950 kg
Shipping weight	31,438 lbs 14260 kg
Front axle	3.937 by 120 inches 99 by 3048 mm
Rear axle	3.937 by 120 inches 99 by 3048 mm

Tests

Nebraska Tractor Test 1671
Diesel PowrSync 4WD October 19 - November 16, 1993 Link: Nebraska Tractor Test 1671 file
PTO performance
Power at rated engine speed	259.31 hp 193.4 kW
Fuel use	15.5 gal/hour 58.7 l/hour
Power at rated PTO speed	286.31 hp 213.5 kW
Fuel use	16.0 gal/hour 60.6 l/hour
Drawbar performance
Max power	242.52 hp 180.8 kW
Fuel use	15.8 gal/hour 59.8 l/hour
Max pull	33,464 lbs 15179 kg