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Allis Chalmers 840B

Allis Chalmers 840B tractor
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The Allis Chalmers 840B is a wheel loader produced from 1975 to 1976, built in Deerfield, Illinois, USA. It features an Allis Chalmers 4.9L 6-cylinder diesel engine delivering 85 hp gross and 80 hp net, coupled with a 3-speed power shift transmission. The loader has four-wheel drive with planetary final drives and articulated power steering. It includes a four-post ROPS/FOPS with an optional cab and heater. The hydraulics system is open center with 2250 psi pressure and 30 gpm pump flow. Dimensions include a 96-inch wheelbase, 210.2-inch length, and operating weight of 16656 lbs. Tires are 15.5-25 front and rear. Electrical system features a 12-volt negative ground with a 55-amp alternator and two batteries. The front-end loader attachment has a breakout force of 13300 lbs, 50° dump angle, and various operational timings.
Allis Chalmers 840Bwheel loadertractor specifications85 hp4.9L diesel enginepower shift transmissionfront-end loader
Power-
Founded-
Model840B

Technical Specifications

Detailed specifications and technical data for Allis Chalmers 840B

Power

Engine (net):80 hp (59.7 kW)
Engine (gross):85 hp (63.4 kW)

Tires

Industrial rear:15.5-25
Industrial front:15.5-25

Engine

Type:diesel
Model:Allis Chalmers 2800
Torque:340 lb-ft (461.0 Nm)
Cooling:liquid-cooled inline
Starter:electric
Idle RPM:700-2700
Cylinders:6-cylinder
Fuel tank:30 gal (113.6 L)
Rated RPM:2500
Torque RPM:1400
Bore/Stroke:3.875x4.25 inches (98 x 108 mm)
Power (net):80 hp (59.7 kW)
Displacement:301 ci (4.9 L)
Oil capacity:16 qts (15.1 L)
Power (gross):85 hp (63.4 kW)
Starter volts:12
Coolant capacity:24 qts (22.7 L)

Dimensions

Length:210.2 inches (533 cm)
Wheelbase:96 inches (243 cm)
Rear tread:67 inches (170 cm)
Front tread:67 inches (170 cm)
Height (ROPS):124 inches (314 cm)
Operating weight:16656 lbs (7555 kg)
Height (steering wheel):94.5 inches (240 cm)

Electrical

Ground:negative
Batteries:2
Battery AH:95
Battery volts:12
Charging amps:55
Charging system:alternator

Hydraulics

Type:open center
Pressure:2250 psi (155.1 bar)
Pump flow:30 gpm (113.6 lpm)
Steering flow:12.2 gpm (46.2 lpm)
Steering press.:1500 psi (103.4 bar)

Mechanical

Drive:Four-wheel drive
Steering:Articulated power steering
ROPS/FOPS:Four-post ROPS/FOPS. Cab optional with heater.
Final drives:planetary

Production

Type:Wheel Loader
Built in:Deerfield, Illinois, USA
Years made:1975 - 1976

Attachments

Type:front-end loader
Dump time:2.0s
Dump angle:50°
Lower time:5.0s
Raise time:6.5s
Reach (dumped):39.1 inches (99 cm)
Height (at pin):135.8 inches (344 cm)
Clearance (dumped):112 inches (284 cm)
Loader breakout force:13300 lbs (6032 kg)
Rollback (ground line):44°

Transmission

Type:power shift
Gears:3 forward and reverse
Oil capacity:20 qts (18.9 L)

Related Models

Allis Chalmers 840

Model:840