Allis Chalmers industrial tractors
Allis Chalmers 840
The Allis Chalmers 840 is a wheel loader manufactured from 1970 to 1974 in Deerfield, Illinois, USA. It is powered by a Perkins 4.1L 4-cylinder diesel engine producing 83 hp gross. The tractor features a 3-speed power shift transmission, four-wheel drive with planetary final drives, and articulated power steering. It has a fuel capacity of 34 gallons and a hydraulic system capacity of 30 gallons with an open center type hydraulic system. The loader attachment offers a breakout force of 13,300 lbs and various bucket widths. Dimensions include a 96-inch wheelbase, 208.75-inch length, and an operating weight of 14,650 lbs.
Power-
Founded-
Model840
Technical Specifications
Detailed specifications and technical data for Allis Chalmers 840
Power
| Engine (gross) | 83 hp (61.9 kW) |
|---|
Engine
| Type | diesel |
|---|---|
| Model | Perkins 4.1L 4-cyl diesel |
| Torque | 200 lb-ft (271.2 Nm) |
| Cooling | liquid-cooled inline |
| Starter | electric |
| Idle RPM | 700-2700 |
| Cylinders | 4-cylinder |
| Rated RPM | 2500 |
| Torque RPM | 1400 |
| Bore/Stroke | 3.975x5.00 inches (101 x 127 mm) |
| Compression | 16:1 |
| Displacement | 248 ci (4.1 L) |
| Oil capacity | 7 qts (6.6 L) |
| Power (gross) | 83 hp (61.9 kW) |
| Starter volts | 12 |
| Coolant capacity | 20 qts (18.9 L) |
Capacity
| Fuel | 34 gal (128.7 L) |
|---|---|
| Hydraulic system | 30 gal (113.6 L) |
Dimensions
| Length | 208.75 inches (530 cm) |
|---|---|
| Wheelbase | 96 inches (243 cm) |
| Rear tread | 67 inches (170 cm) |
| Front tread | 67 inches (170 cm) |
| Height (exhaust) | 99 inches (251 cm) |
| Operating weight | 14650 lbs (6645 kg) |
| Height (steering wheel) | 94.5 inches (240 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 95 |
| Battery volts | 12 |
| Charging amps | 55 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Capacity | 30 gal (113.6 L) |
| 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 |
| Final drives | planetary |
Production
| Built in | Deerfield, Illinois, USA |
|---|---|
| Years made | 1970 - 1974 |
Attachments
| Type | front-end loader |
|---|---|
| Dump time | 2.0s |
| Dump angle | 50° |
| Lower time | 5.0s |
| Raise time | 6.5s |
| Bucket widths | 86 inches (218 cm), 88 inches (223 cm), 90 inches (228 cm) |
| Reach (dumped) | 39.1 inches (99 cm) |
| Height (at pin) | 137 inches (347 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) |
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