Allis Chalmers 7040

The Allis Chalmers 7040 is a tractor produced by Allis Chalmers. It is equipped with a 426 ci 7.0 L engine. The rated power output is 136.30 hp 101.6 kW. Transmission: Power Shift. Operating weight: 11,700 lbs 5307 kg.

Overview

	1975 - 1977 7000 SeriesRow-Crop tractor
1975 - 1977
7000 Series
Row-Crop tractor

Production
Manufacturer	Allis Chalmers
Row-Crop tractor
Built in West Allis, Wisconsin, USA
Original price	$24,550

Allis Chalmers 7040 Engine
Allis Chalmers 7.0L 6-cyl diesel
Engine details ...

Allis Chalmers 7040 Power
Drawbar (claimed)	117 hp 87.2 kW
PTO (claimed)	136 hp 101.4 kW
Drawbar (tested)	114.34 hp 85.3 kW
PTO (tested)	136.49 hp 101.8 kW
Performance test details ...

Mechanical
Two-wheel drive
Differential lock	power standard
Steering	hydrostatic power
Differential hydraulic wet disc brakes
Acousta cab standard with heater, air-conditioning optional. Optional radio and 8-track tape player. Four-post ROPS canopy optional.

Capacity
Fuel	51 gal 193.0 L
	13 gal (optional tank) 49.2 L
Hydraulic system	24.1 gal 91.2 L

Hydraulics
Type	closed center
Capacity	24.1 gal 91.2 L
Valves	2 or 3
Pump flow	22 gpm 83.3 lpm
Total flow	45 gpm 170.3 lpm

Tractor hitch
Rear Type	III/II

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000
	1000 (optional)

Dimensions & Tires
Wheelbase	106 inches 269 cm
Weight	11,700 lbs 5307 kg
Front tire	11.00-16
Rear tire	18.4-38
Full dimensions and tires ...

Electrical
Charging system	alternator
Battery volts	12

References
Loaders - picking up where the others leave off published in 1979, by Allis Chalmers
7040/7060/7080 - The Rising Power in Farming published in 1976, by Allis Chalmers

Engine

Engine Detail — 426 ci / 7.0 L Diesel

Configuration	turbocharged diesel, 6-cylinder, liquid-cooled
Allis Chalmers 3500 Mark II
Displacement	426 ci 7.0 L
Bore/Stroke	4.25x5.00 inches 108 x 127 mm
Pre-heating	ether
	coolant heater (optional)
Compression	16:1
Rated RPM	2300
Starter volts	12
Oil capacity	19 qts 18.0 L
Coolant capacity	31 qts 29.3 L

Transmission

Transmission options
20-speed partial power shift
12-speed partial power shift

Transmission — Power Director

Transmission	Power Director
Type	partial power shift
Gears	20 forward and 4 reverse
Five gears, plus reverse, with two ranges (fast/slow) and high-low power shift. Floor-mounted shifter selects gear, side-console lever selects range. Foot-operated buttons control the Power Director power shift.
With 18.4x38 rear tires.

Transmission — Power Shift

Transmission	Power Shift
Type	partial power shift
Gears	12 forward and 2 reverse
Six gears in two ranges (slow/fast). Clutchless power shift between gears.
With 18.4x38 rear tires.

Dimensions

Allis Chalmers 7040 Tires
Ag front	11.00-16
Ag rear	18.4-38
Ag front	10.00-16
	14L-16.1
Ag rear	20.8-38
	23.1-34
	24.5-32
	30.5-32
	15.5-38
	16.9-38

Dimensions
Wheelbase	106 inches 269 cm
Length	173.6 inches 440 cm
Width	95.5 inches 242 cm
	119.5 inches (long axle) 303 cm
Operating weight	11,700 lbs 5307 kg
Ballasted weight	17,380 lbs 7883 kg
Clearance (front axle)	22.4 inches 56 cm
Clearance (rear axle)	28 inches 71 cm
Front tread	62 to 88 inches 157 to 223 cm
Rear tread	64 to 91 inches 162 to 231 cm

Allis Chalmers 7040 Height
Steering wheel	87 inches 220 cm
Hood	68 inches 172 cm
Exhaust	116 inches 294 cm

Tests

Tractor Tests
NTTL 1166: diesel Power Director 2WD
NTTL 1196: diesel power shift 2WD

Nebraska Tractor Test 1166
Diesel Power Director 2WD October 29 - November 7, 1974 Link: Nebraska Tractor Test 1166 file
PTO performance
Power at rated engine speed	136.49 hp 101.8 kW
Fuel use	9.0 gal/hour 34.1 l/hour
Power at rated PTO speed	136.26 hp 101.6 kW
Fuel use	9.0 gal/hour 34.1 l/hour
Drawbar performance
Max power	114.23 hp 85.2 kW
Fuel use	8.8 gal/hour 33.3 l/hour
Gear 4SL used for power test.
Max pull	13,619 lbs 6177 kg
Gear 2SL used for pull test.

Nebraska Tractor Test 1196
Diesel power shift 2WD November 3 - 20, 1975 Link: Nebraska Tractor Test 1196 file
PTO performance
Power at rated engine speed	136.30 hp 101.6 kW
Fuel use	8.9 gal/hour 33.7 l/hour
Power at rated PTO speed	136.15 hp 101.5 kW
Fuel use	8.8 gal/hour 33.3 l/hour
Drawbar performance
Max power	114.34 hp 85.3 kW
Fuel use	8.8 gal/hour 33.3 l/hour
Gear 1H used for power test.
Max pull	13,547 lbs 6144 kg
Gear 2L used for pull test.

Photos

Allis Chalmers 7040

Allis Chalmers 7040