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Allis Chalmers 840C

Allis Chalmers 840C tractor
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The Allis Chalmers 840C is a Mitsubishi-built wheel loader distributed by Allis Chalmers and produced from 1981 to 1983. It features a Mitsubishi 4.4L 6-cylinder diesel engine producing 83 hp (61.9 kW) net power, coupled with a 3-speed power shift transmission. The loader has four-wheel drive with planetary final drives, articulated power steering, and hydraulic dry disc brakes. It includes a four-post ROPS/FOPS with an optional cab and heater. The hydraulic system is open center with a capacity of 21.1 gallons and a pressure of 2350 psi. Dimensions include a 96.5 inch wheelbase, 217.4 inch length, and an operating weight of 16,250 lbs. The front and rear tires are industrial size 15.5-25 and 16.9-24. The front-end loader attachment has a breakout force of 13,195 lbs and various operational specifications.
Allis Chalmers 840Cwheel loaderMitsubishi engine83 hppower shift transmission198119821983
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Model840C

Technical Specifications

Detailed specifications and technical data for Allis Chalmers 840C

Power

Engine (net):83 hp (61.9 kW)

Tires

Industrial rear:15.5-25, 16.9-24
Industrial front:15.5-25, 16.9-24

Engine

Type:diesel
Model:Mitsubishi S6E2
Torque:180 lb-ft (244.1 Nm)
Cooling:liquid-cooled inline
Starter:electric
Cylinders:6-cylinder
Rated RPM:2500
Torque RPM:1800
Bore/Stroke:3.858x3.858 inches (98 x 98 mm)
Power (net):83 hp (61.9 kW)
Displacement:270.6 ci (4.4 L)
Oil capacity:12 qts (11.4 L)
Starter volts:24
Coolant capacity:20 qts (18.9 L)

Capacity

Fuel:20 gal (75.7 L)
Hydraulic system:21.1 gal (79.9 L)

Dimensions

Length:217.4 inches (552 cm)
Wheelbase:96.5 inches (245 cm)
Rear tread:68.7 inches (174 cm)
Front tread:68.7 inches (174 cm)
Height (ROPS):118.75 inches (301 cm)
Ground clearance:15.2 inches (38 cm)
Operating weight:16250 lbs (7371 kg)

Electrical

Ground:negative
Charging system:alternator

Hydraulics

Type:open center
Capacity:21.1 gal (79.9 L)
Pressure:2350 psi (162.0 bar)
Pump flow:29.5 gpm (111.7 lpm)

Mechanical

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

Production

Type:Wheel Loader
Built in:Japan
Distributor:Allis Chalmers
Manufacturer:Mitsubishi
Years produced:1981 - 1983

Attachments

Type:front-end loader
Boom rod:2.17 inches (5 cm)
Dump time:1.0s
Bucket rod:2.17 inches (5 cm)
Dump angle:45°
Lower time:4.7s
Raise time:6.7s
Boom cylinder:4.33 inches (10 cm)
Rollback time:1.4s
Reach (dumped):46.5 inches (118 cm)
Bucket cylinder:4.33 inches (10 cm)
Height (at pin):133.5 inches (339 cm)
Clearance (dumped):103 inches (261 cm)
Loader breakout force:13195 lbs (5985 kg)
Rollback (ground line):38°

Transmission

Type:power shift
Gears:3 forward and 1 reverse
Oil capacity:16 qts (15.1 L)