Allis Chalmers D15

The Allis Chalmers D15 is a tractor produced by Allis Chalmers. It is equipped with a 175 ci 2.9 L engine. The listed engine power is 37.44 hp 27.9 kW. Transmission: shuttle. Operating weight: 3985 to 4220 pounds.

Engine Power

37.44 hp 27.9 kW

Fuel & Capacities

16 gal (gas/diesel) 60.6 L

Transmission

shuttle

Operating Weight

3985 to 4220 pounds

Overview

	1960 - 1968 Model year 1960-19631963-1968 D SeriesRow-Crop tractor D Series Row-Crop tractor

Production
Manufacturer	Allis Chalmers
Row-Crop tractor
Built in West Allis, Wisconsin, USA
Total built	7,169 (total)
	6,212 (gas/LP)
	957 (diesel)
The Allis-Chalmers D15 was an improved version of the D14, which it replaced in 1960. Higher power for the gas and LPG engines came from increased compression and RPMs. A diesel engine was also made available.

Allis Chalmers D15 Power
Drawbar (claimed)	35.33 hp 26.3 kW
PTO (claimed)	40.0 hp 29.8 kW
Plows	3
Drawbar (tested)	35.33 hp 26.3 kW
PTO (tested)	40.00 hp 29.8 kW
Performance test details ...

Mechanical
Two-wheel drive
Steering	manual
	power optional
Expanding shoe brakes
Open operator station.

Capacity
Fuel	16 gal (gas/diesel) 60.6 L
	15.75 gal (LP gas) 59.6 L
Hydraulic system	2.5 gal 9.5 L

Hydraulics
Capacity	2.5 gal 9.5 L
Pressure	2300 psi 158.6 bar

Tractor hitch
Rear Type	II/I
Type	Snap-Coupler

Power Take-off (PTO)
Rear PTO	live
Rear PTO Type	540

Dimensions & Tires
Wheelbase	88 inches 223 cm
Weight	3985 to 4220 pounds
Front tire	5.50-16
Rear tire	12.4-26
Full dimensions and tires ...

Belt Pulley
Diameter	9 inches 22 cm
Width	6.5625 inches 16 cm
RPM	1678
Speed	3956 ft/min 1205.79 meters/min

Electrical
Ground	positive
Batteries	1 (gas/LP)
	2 (diesel)
Battery volts	12
Battery AH	70

References

Operators Instruction for D15 Diesel Tractor (TM-274) published in 1960
more work... less sweat published in 1962, by Allis Chalmers

Engine

Engine options
Allis Chalmers 2.4L 4-cyl gasoline
Allis Chalmers 2.4L 4-cyl LP gas
Allis Chalmers 2.9L 4-cyl diesel

Engine Detail — 149 ci / 2.4 L Gasoline

Manufacturer	Allis Chalmers
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Displacement	149 ci 2.4 L
Bore/Stroke	3.50x3.875 inches 89 x 98 mm
Fuel use	3.373 gal/hour 12.8 l/hour
Air cleaner	oil bath
Compression	7.75:1
Rated RPM	2000
Firing order	1-2-4-3
Starter volts	12
Sparkplug gap	0.025 inches 0.635 mm
Point gap	0.022 inches 0.559 mm
Intake valve clearance	0.009 inches 0.229 mm
Exhaust valve clearance	0.015 inches 0.381 mm

Engine Detail — 149 ci / 2.4 L LP Gas

Manufacturer	Allis Chalmers
Fuel Type	LP gas
Configuration	4-cylinder, liquid-cooled
Displacement	149 ci 2.4 L
Bore/Stroke	3.50x3.875 inches 89 x 98 mm
Fuel use	3.992 gal/hour 15.1 l/hour
Air cleaner	oil bath
Compression	8.9:1
Rated RPM	2000
Firing order	1-2-4-3
Starter volts	12

Engine Detail — 175 ci / 2.9 L Diesel

Manufacturer	Allis Chalmers D-175
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled
Displacement	175 ci 2.9 L
Bore/Stroke	3.5625x4.375 inches 90 x 111 mm
Fuel use	2.871 gal/hour 10.9 l/hour
Air cleaner	oil bath
Compression	15.35:1
Rated RPM	2000
Firing order	1-3-4-2
Starter volts	12
Coolant capacity	11 qts 10.4 L
Intake valve clearance	0.010 inches (hot) 0.254 mm
Exhaust valve clearance	0.019 inches (hot) 0.483 mm
Oil capacity	5 qts 4.7 L

Transmission

Transmission options
8-speed partial power shift
4-speed

Transmission — Power Director

Transmission	Power Director
Type	partial power shift
Gears	8 forward and 2 reverse
Oil capacity	14.75 qts 14.0 L
Oil type	SAE80EP
The transmission is controlled by means of the gear shift lever and the Power Director lever. The tractor must be stopped, and clutch used, to select one of four forward gears, or reverse. The Power Director lever has high, low, and neutral positions. The Power Director can be shifted on the move without clutching. Placing the Power Director into neutral causes the tractor to stop while keeping the PTO engaged.
With 12.4-26 rear tires.

Transmission — shuttle

Transmission	shuttle
Gears	4 forward and reverse
Oil capacity	14.75 qts 14.0 L
Oil type	SAE80EP
The shuttle transmission is controlled using the gear shift lever and the shuttle control lever. The tractor must be stopped, and clutch used, to select one of four speeds with the gear shift. The shuttle control lever enables a shift between forward, reverse, or neutral without clutching. A PTO could be ordered on the industrial D15 with the shuttle, but it ran at 875 RPMs.

Dimensions

Allis Chalmers D15 Tires
Ag front	5.50-16
Ag rear	12.4-26
Ag front	6.00-16
	7.50-16
Ag rear	13.6-26
	14.9-26

Dimensions
Wheelbase	88 inches 223 cm
Length	130.4 inches 331 cm
Width	67 inches 170 cm
Height (hood)	57.3 inches 145 cm
Height (exhaust)	80.2 inches 203 cm
Clearance (front axle)	21.2 inches 53 cm
Clearance (rear axle)	24.4 inches 61 cm
Front tread	51 to 78 inches 129 to 198 cm
Rear tread	54 to 80 inches 137 to 203 cm
Rear tread	54 to 88 inches 137 to 223 cm (wide axle)

Allis Chalmers D15 Weight
Operating	3,985 lbs (gas) 1807 kg
	4,036 lbs (LP gas) 1830 kg
	4,220 lbs (diesel) 1914 kg
Ballasted	7,575 lbs 3436 kg

Tests

Tractor Tests
NTTL 795: gasoline 8-speed 2WD
NTTL 796: diesel 8-speed 2WD
NTTL 797: LP gas 8-speed 2WD

Nebraska Tractor Test 795
Gasoline 8-speed 2WD May 12 - 23, 1961 Link: Nebraska Tractor Test 795 file
PTO performance
Power at rated engine speed	40.00 hp 29.8 kW
Fuel use	3.4 gal/hour 12.9 l/hour
Power at rated PTO speed	33.85 hp 25.2 kW
Fuel use	2.8 gal/hour 10.6 l/hour
Drawbar performance
Max power	35.33 hp 26.3 kW
Fuel use	3.4 gal/hour 12.9 l/hour
Gear 3-Low used for power test.
Max pull	5,605 lbs 2542 kg
Gear 1-Low used for pull test.

Nebraska Tractor Test 796
Diesel 8-speed 2WD May 12 - 26, 1961 Link: Nebraska Tractor Test 796 file
PTO performance
Power at rated engine speed	36.51 hp 27.2 kW
Fuel use	2.9 gal/hour 11.0 l/hour
Power at rated PTO speed	34.36 hp 25.6 kW
Fuel use	2.5 gal/hour 9.5 l/hour
Drawbar performance
Max power	33.32 hp 24.8 kW
Fuel use	3.0 gal/hour 11.4 l/hour
Gear 3-Low used for power test.
Max pull	5,737 lbs 2602 kg
Gear 1-Low used for pull test.

Nebraska Tractor Test 797
LP gas 8-speed 2WD May 12 - 26, 1961 Link: Nebraska Tractor Test 797 file
PTO performance
Power at rated engine speed	37.44 hp 27.9 kW
Fuel use	4.0 gal/hour 15.1 l/hour
Power at rated PTO speed	30.83 hp 23.0 kW
Fuel use	3.3 gal/hour 12.5 l/hour
Drawbar performance
Max power	33.21 hp 24.8 kW
Fuel use	4.0 gal/hour 15.1 l/hour
Gear 3-Low used for power test.
Max pull	5,668 lbs 2571 kg
Gear 1-Low used for pull test.

Photos

Allis-Chalmers D15, left side.

Allis-Chalmers D15, right side.

Recommended Implements & Sizing Guide

Engineering recommendations for Allis Chalmers D15 based on its 37.44 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm)	Medium Duty	Standard utility farm tillage.
Rotary Cutter / MowerMowing & Clearing	5 ft (60 in)1.5 m	Medium Duty	Pasture maintenance and weeds up to 1.5" diameter.
Rotary TillerSeedbed Prep	54 to 60 in135 - 150 cm	Medium Duty	Thorough seedbed preparation in orchards and vegetable plots.
Disc HarrowSecondary Tillage	5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片)	Light Duty	Small acreage soil break-up and secondary aeration.
Hay BalerHay & Forage	Small Square Baler (14x18")小方捆打捆机 (36x46 cm)	Medium Duty	Classic 2-string baler for horse and small livestock hay.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers D15.

Estimated Continuous Field Runtime: 8.2 hrs

Approximately 8.2 hours of continuous field operation at ~75% rated power on a full tank (16 gal / 60.6 L).

Estimated 75% Load Fuel Burn~1.9 gal/hr (7.4 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours