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Allis Chalmers 640

Allis Chalmers 640 tractor
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The Allis Chalmers 640 is a wheel loader produced from 1980 to 1983. It features a Perkins 3.3L 4-cylinder diesel engine delivering 63 hp gross and 57 hp net. The hydrostatic transmission offers infinite forward and reverse speeds with two ranges. The loader has four-wheel drive, articulated power steering, and a four-post ROPS/FOPS with an optional cab and heater. It has a wheelbase of 65 inches, operating weight of 8130 lbs, and uses industrial tires sized 12.00-16.5 and 10.00-16.5. The hydraulic system is open center with 22 gallons capacity and 2250 psi pressure. The front-end loader attachment has a breakout force of 7000 lbs, 45° dump angle, and a bucket width of 68 inches.
Allis Chalmers 640wheel loaderPerkins 3.3L diesel enginehydrostatic transmissiontractor specifications
Power-
Founded-
Model640

Technical Specifications

Detailed specifications and technical data for Allis Chalmers 640

Power

Engine (net):57 hp (42.5 kW)
Engine (gross):63 hp (47.0 kW)

Tires

Industrial rear:12.00-16.5, 10.00-16.5, 31x15.5-15
Industrial front:12.00-16.5, 10.00-16.5, 31x15.5-15

Engine

Type:diesel, 4-cylinder, liquid-cooled inline
Model:Perkins D4.203
Torque:164 lb-ft (222.4 Nm)
Starter:electric
Rated RPM:2300
Torque RPM:1250
Bore/Stroke:3.60x5.00 inches (91 x 127 mm)
Compression:17.5:1
Power (net):57 hp (42.5 kW)
Displacement:203.5 ci (3.3 L)
Oil capacity:5 qts (4.7 L)
Power (gross):63 hp (47.0 kW)
Starter volts:12
Coolant capacity:20 qts (18.9 L)

Capacity

Fuel:22.75 gal (86.1 L)
Hydraulic system:22 gal (83.3 L)

Dimensions

Length:177 inches (449 cm)
Wheelbase:65 inches (165 cm)
Rear tread:56 inches (142 cm)
Front tread:56 inches (142 cm)
Height (ROPS):95.9 inches (243 cm)
Ground clearance:12.4 inches (31 cm)
Operating weight:8130 lbs (3687 kg)

Electrical

Ground:negative
Battery AH:95
Battery volts:12
Charging amps:42
Charging system:alternator

Hydraulics

Type:open center
Capacity:22 gal (83.3 L)
Pressure:2250 psi (155.1 bar)
Pump flow:25 gpm (94.6 lpm)
Steering flow:9 gpm (34.1 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.

Production

Type:Wheel Loader
Years produced:1980 - 1983

Attachments

Loader:front-end loader
Boom rod:2.0 inches (5 cm)
Dump time:2.0s
Bucket rod:1.5 inches (3 cm)
Dump angle:45°
Lower time:2.0s
Raise time:5.0s
Bucket width:68 inches (172 cm)
Boom cylinder:3.5 inches (8 cm)
Rollback time:1.0s
Reach (dumped):29.5 inches (74 cm)
Bucket cylinder:3.0 inches (7 cm)
Height (at pin):123 inches (312 cm)
Clearance (dumped):103 inches (261 cm)
Rollback (ground line):40°
640 Loader breakout force:7000 lbs (3175 kg)

Transmission

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

Related Models

Allis Chalmers 540

Model:540