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White 4-78 Mighty-Tow

White 4-78 Mighty-Tow tractor
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The White 4-78 Mighty-Tow is an industrial tractor produced by White from 1967 to 1976. It was built in Charles City, Iowa, USA. The tractor features a 78 hp Oliver 4.6L 6-cylinder diesel engine or an optional 4.3L gasoline engine. It offers multiple transmission options including 6-speed, 12-speed Hydra-Power, and a 6-speed power shuttle. The tractor has four-wheel drive, manual or optional power steering, and disc brakes. It supports front-end loader and backhoe attachments, making it versatile for industrial tasks. The open operator station has an optional cab. The tractor's hydraulic system provides 2250 psi pressure and 28 gpm pump flow. The rear PTO operates at 540/1000 RPM. Dimensions vary with configurations, with a wheelbase of 71.875 inches and shipping weight ranging from 5575 to 13200 lbs depending on attachments.
White 4-78White 4-78 Mighty-Towindustrial tractorOliver engine78 hp tractor4WD tractorloader backhoetractor specifications
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Model4-78

Technical Specifications

Detailed specifications and technical data for White 4-78 Mighty-Tow

Power

Engine power:78 hp (58.2 kW)
Drawbar (claimed):57 hp (42.5 kW)

Engine

Power:78 hp (58.2 kW)
Starter:electric
Fuel tank:27.5 gal (104.1 L)
Rated RPM:2200
Air cleaner:dry
Bore/Stroke:3.875x4.00 inches (98 x 102 mm)
Compression:16:1
Displacement:283 ci (4.6 L)
Oil capacity:8 qts (7.6 L)
Oliver diesel:6-cylinder, liquid-cooled
Starter volts:12
Engine options:Oliver 4.6L 6-cyl diesel, Oliver 4.3L 6-cyl gasoline
Oliver gasoline:6-cylinder, liquid-cooled
Coolant capacity:20 qts (18.9 L)
Bore/Stroke gasoline:3.75x4.00 inches (95 x 102 mm)
Compression gasoline:8.5:1
Displacement gasoline:265 ci (4.3 L)
Oil capacity gasoline:8 qts (7.6 L)
Starter type gasoline:electric
Coolant capacity gasoline:20 qts (18.9 L)

Dimensions

Width:77 inches (195 cm)
Length:147.25 inches (tractor) (374 cm), 291 inches (loader-backhoe) (739 cm)
Rear tire:16.9x28, 14.00x24, 18.00x26
Wheelbase:71.875 inches (182 cm)
Front tire:7.50x18, 8.25x20, 11.00x16
Rear tread:60.25/71.5 inches (153/181 cm)
Front tread:60 inches (152 cm)
Shipping weight:5575 lbs (tractor) (2528 kg), 13200 lbs (loader-backhoe) (5987 kg)
Height (steering wheel):79.25 inches (201 cm)

Hydraulics

Pressure:2250 psi (155.1 bar)
Pump flow:28 gpm (106.0 lpm) (Rated flow of loader-backhoe model)

Mechanical

Drive:Four-wheel drive
Brakes:Disc brakes
Steering:manual, power (optional)
Operator station:Open operator station. Cab optional.

Production

Type:Industrial tractor
Built in:Charles City, Iowa, USA
Manufacturer:White
Years produced:1967 - 1976

Attachments

Backhoe

Type:White Backhoe
Swing Arc:180°
Digging depth:180 inches (457 cm)
Loading height:111 inches (281 cm)
Reach from pivot:201.75 inches (512 cm)
Transport height:121.5 inches (308 cm)

Front-end loader

Dump time:2.4s
Dump angle:43°
Raise time:4.3s
Bucket width:76 inches (193 cm), 96 inches (243 cm) (Light-duty materials bucket)
Lift capacity:4525 lbs (2052 kg) full at pin
Breakout force:6600 lbs (2993 kg) at pin
Reach (dumped):32.75 inches (83 cm)
Height (at pin):135 inches (342 cm)
Clearance (dumped):108.5 inches (275 cm)
Rollback (ground line):32°

Transmission

6-speed

Gears:6 forward and 2 reverse
Clutch:304.8mm dry disc
Oil capacity:32 qts (30.3 L)

12-speed

Gears:12 forward and 4 reverse
Transmission:Hydra-Power
Transmission options:6-speed, 12-speed, 6-speed power shuttle

6-speed power shuttle

Type:power shuttle
Gears:6 forward and reverse
Clutch:wet disc
Transmission:Reverse-O-Torc

Power Take-off (PTO)

Engine RPM:543@2200, 1008@2200
Rear PTO Type:540/1000 (1.375)

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