Hesston 70-90 tractor specifications

1985

1985 90 SeriesUtility tractorFiat built

Series:

Series:60-90 ← 70-90 → 80-90

1984 - 1988

90 Series

Utility tractor

Fiat built

Series:

60-90

→ 70-90

Production

Production
Distributor:	Hesston
Manufacturer:	Fiat
Type:	Utility tractor
Original price:	$27,300 (1988 )

Variants

Variants
60-90DT:	4WD

Hesston 60-90 Power

Hesston 60-90 Power
Engine:	60 hp 44.7 kW
PTO (claimed):	51 hp 38.0 kW

Hesston 60-90 Engine

Hesston 60-90 Engine
Fiat 2.9L 3-cyl diesel
Fuel tank:	21.1 gal 79.9 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
	4x4 MFWD 4WD
Final drives:	planetary
Differential lock:	mechanical rear
Steering:	power
Brakes:	differential hydraulic wet disc
Cab:	Four-post ROPS. Cab optional.
Transmissions:	12-speed synchromesh
	12-speed mechanical shuttle
	20-speed creeper
Transmission details ...

Hydraulics

Hydraulics
Type:	open center
Pressure:	2702 psi 186.3 bar
Rear valves:	2 or 3
Pump flow:	11 gpm 41.6 lpm

Tractor hitch

Tractor hitch
Rear Type:	I/II
Rear lift:	4950 lbs 2245 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent
Rear RPM:	540 (1.375)
Engine RPM:	540@2198

Dimensions & Tires

Dimensions & Tires
2WD Wheelbase:	84.75 inches 215 cm
4WD Wheelbase:	85 inches 215 cm
Weight:	6292 to 6754 pounds
Front tire:	7.50-16
2WD Rear tire:	16.9-30
Full dimensions and tires ...

Electrical

Electrical
Ground:	negative
Charging system:	alternator
Charging amps:	65
Battery volts:	12

Production

Production Distributor:Hesston
Manufacturer:Fiat
Type:Utility tractor
Original price:$31,100 (1985 )

Variants

Variants 70-90DT:4WD

Hesston 70-90 Power

Hesston 70-90 Power Engine:70 hp
52.2 kW
PTO (claimed):62 hp
46.2 kW
Drawbar (tested):53.92 hp
40.2 kW
PTO (tested):62.25 hp
46.4 kW
power test details ...

1985

90 Series

Utility tractor

Fiat built

Series:

60-90 ←

70-90

→ 80-90

Nebraska Tractor Test 1562

Nebraska Tractor Test 1562
Diesel 12-speed 2WD April 22 - May 9, 1985 Link: Nebraska Tractor Test 1562 file
PTO performance
Power at rated engine speed:	62.25 hp 46.4 kW
Fuel use:	3.9 gal/hour 14.8 l/hour
Power at rated PTO speed:	61.94 hp 46.2 kW
Fuel use:	3.7 gal/hour 14.0 l/hour
Drawbar performance
Max power:	53.92 hp 40.2 kW
Fuel use:	3.8 gal/hour 14.4 l/hour
Max pull:	6238 lbs 2829 kg

Hesston 70-90 Engine

Hesston 70-90 Engine Fiat 3.6L 4-cyl diesel Fuel tank:21.1 gal
79.9 L
Engine details ...

1985

90 Series

Utility tractor

Fiat built

Series:

60-90 ←

70-90

→ 80-90

Engine Detail

Engine Detail
Fiat 8045.06
diesel
4-cylinder
liquid-cooled
Displacement:	220.5 ci 3.6 L
Bore/Stroke:	3.937x4.527 inches 100 x 115 mm
Power:	70 hp 52.2 kW
Fuel system:	direct injection
Pre-heating:	ether injection
Compression:	17:1
Rated RPM:	2500
Starter:	electric
Starter volts:	12

Mechanical

Mechanical Chassis:4x2 2WD
4x4 MFWD 4WD
Final drives:planetary
Differential lock:mechanical rear
Steering:power
Brakes:differential hydraulic wet disc
Cab:Four-post ROPS. Cab optional.
Transmissions:12-speed synchromesh
12-speed mechanical shuttle
20-speed creeper
Transmission details ...

1985

90 Series

Utility tractor

Fiat built

Series:

60-90 ←

70-90

→ 80-90

Transmissions overview

Transmissions overview
12-speed synchromesh
12-speed mechanical shuttle
20-speed creeper

Transmission

Transmission
Type:	synchromesh
Gears:	12 forward and 4 reverse
Clutch:	279.4mm dry disc
Four gears (1-4) in three ranges (I-III) plus reverse range.

Speeds

Speeds

Transmission

Transmission
Type:	mechanical shuttle
Gears:	12 forward and reverse

Speeds

Speeds
With 18.4-30 rear tires.

Transmission

Transmission
Type:	creeper
Gears:	20 forward and 8 reverse

Speeds

Speeds
With 18.4-30 rear tires.

Hydraulics

Hydraulics Type:open center
Pressure:2702 psi
186.3 bar
Rear valves:2 or 3
Pump flow:11 gpm
41.6 lpm

Tractor hitch

Tractor hitch Rear Type:II
Rear lift:5212 lbs
2364 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540 (1.375)
Engine RPM:540@2198

Dimensions & Tires

Dimensions & Tires 2WD Wheelbase:89.25 inches
226 cm
4WD Wheelbase:89.5 inches
227 cm
Weight:6798 to 7436 pounds
Front tire:7.50-16
Rear tire:16.9-30
Full dimensions and tires ...

1985

90 Series

Utility tractor

Fiat built

Series:

60-90 ←

70-90

→ 80-90

Hesston 70-90 Tires

Hesston 70-90 Tires
2WD Ag front:	7.50-16
4WD Ag front:	11.2-24
Ag rear:	16.9-30
2WD Ag front:	7.50-18
2WD Ag front:	9.5L-15
4WD Ag front:	13.6-24
4WD Ag front:	12.4-24
Ag rear:	18.4-30
	13.6-38
	16.9-30

Dimensions

Dimensions
2WD Wheelbase:	89.25 inches 226 cm
4WD Wheelbase:	89.5 inches 227 cm
2WD Length:	135.25 inches 343 cm
4WD Length:	140.5 inches 356 cm
2WD Front tread:	55.5 to 75.25 inches 140 to 191 cm
4WD Front tread:	64.1 to 77 inches 162 to 195 cm
Rear tread:	55.1 to 78.75 inches 139 to 200 cm