Tractorpedia.com

International Harvester 3400A

International Harvester 3400A tractor
View Images
The International Harvester 3400A is a backhoe loader tractor produced from 1972 to 1975. It features engine options of a 2.9L 3-cylinder diesel or a 2.9L 4-cylinder gasoline engine, with power outputs ranging from 50 to 60 hp gross. The tractor offers multiple transmission options including an 8-speed shuttle, hydrostatic, and 8-speed gear transmissions. It has a wheelbase of 80.5 inches and various tire options. The front-end loader has a lift capacity of 3000 lbs and breakout force of 5500 lbs, while the backhoe offers a digging depth of 172 inches and a bucket width of 24 inches. The tractor includes mechanical rear differential lock, power steering, and independent disc brakes, with a four-post ROPS and optional cab.
International Harvester 3400Abackhoe loadertractor specs2.9L diesel engine2.9L gasoline engine60 hp tractor8-speed shuttle transmissionhydrostatic transmissiontractor dimensionsloader capacitybackhoe digging depth
Power-
Founded-
Model3400A

Technical Specifications

Detailed specifications and technical data for International Harvester 3400A

Power

Engine (net):53 hp (39.5 kW)
Engine (gross):60 hp (44.7 kW)
Gas PTO (claimed):40 hp (29.8 kW)
Diesel PTO (claimed):38 hp (28.3 kW)
Gas Drawbar (claimed):32 hp (23.9 kW)
Diesel Drawbar (claimed):30 hp (22.4 kW)

Tires

Industrial rear:14.9-24, 17.5L-24
Industrial front:7.50-16, 11L-16

Engine

Options:International Harvester 2.9L 3-cyl diesel, International Harvester 2.9L 4-cyl gasoline
Idle RPM:900-2400
Fuel tank:24 gal (90.8 L)
Rated RPM:2400
Bore/Stroke:3.875x5.060 inches (98 x 129 mm)
Compression:7.2:1
Power (net):50 hp (37.3 kW)
Displacement:179 ci (2.9 L)
Oil capacity:8 qts (7.6 L)
Power (gross):58 hp (43.3 kW)
Starter volts:12
Coolant capacity:12.5 qts (11.8 L)
Idle RPM gasoline:900-2400
Rated RPM gasoline:2400
Bore/Stroke gasoline:3.562x4.39 inches (90 x 112 mm)
Power (net) gasoline:53 hp (39.5 kW)
Displacement gasoline:175 ci (2.9 L)
Oil capacity gasoline:7 qts (6.6 L)
Power (gross) gasoline:60 hp (44.7 kW)
Starter volts gasoline:12
Coolant capacity gasoline:11.5 qts (10.9 L)
International Harvester D-179 diesel:3-cylinder, liquid-cooled
International Harvester C-175 gasoline:4-cylinder, liquid-cooled

Dimensions

Width:71 inches (180 cm) (Width of tractor at minimum tread setting.)
Wheelbase:80.5 inches (204 cm)
Rear tread:60/64 inches (152/162 cm)
Front tread:62 inches (157 cm)
Height (ROPS):111 inches (281 cm)
Max rear axle:12000 lbs (5443 kg)
Max front axle:10000 lbs (4536 kg)
Height (backhoe):160 inches (406 cm)
Clearance (front axle):12.6 inches (32 cm)
Height (steering wheel):66 inches (167 cm)

Electrical

Battery AH:78 (gas), 172 (diesel)
Battery volts:12
Charging amps:32
Charging system:alternator

Hydraulics

Total flow:25.2 gpm (95.4 lpm)
Steering flow:2.7 gpm (10.2 lpm)

Mechanical

ROPS:Four-post ROPS. Cab optional.
Drive:Two-wheel drive
Brakes:Independent disc brakes
Power steering:Yes
Differential lock:mechanical rear

Production

Type:Backhoe loader tractor
Years made:1972 - 1975
Manufacturer:International Harvester

Transmission

Gear

Type:gear
Gears:8 forward and 4 reverse
Notes:Four gears in two ranges.
Options:8-speed shuttle, hydrostatic, 8-speed gear

Shuttle

Type:shuttle
Gears:8 forward and reverse
Notes:Four gears in two ranges with shuttle.
Clutch:dry disc

Hydrostatic

Type:hydrostatic
Gears:infinite forward and reverse (2-range)

Backhoe & Loader

Dump time:2s
Swing arc:180°
Dump angle:45°
Lower time:2.3s
Raise time:4s
Backhoe type:International Backhoe
Bucket force:11324 lbs (5136 kg)
Bucket width:76.5 inches (194 cm)
Loading height:152 inches (386 cm)
Reach (dumped):38 inches (96 cm)
Bucket rotation:178°
Height (at pin):127.6 inches (324 cm)
Front-end loader:International Loader
Reach from pivot:218 inches (553 cm)
Dipperstick force:6341 lbs (2876 kg)
Clearance (dumped):104 inches (264 cm)
Backhoe bucket width:24 inches (60 cm)
Loader lift capacity:3000 lbs lift (full at pin) (1360 kg)
Backhoe digging depth:172 inches (436 cm)
Loader breakout force:5500 lbs breakout (at pin) (2494 kg)
Rollback (ground line):30°
Backhoe transport height:160 inches (406 cm)
2-Foot flat digging depth:171 inches (434 cm)