Allis Chalmers HD15

The Allis Chalmers HD15 is a tractor produced by Allis Chalmers. It is equipped with a 426 ci 7.0 L engine. Transmission: constant mesh. Drive type: crawler. Operating weight: 27850 to 30895 pounds.

Drive & Traction

crawler

Fuel & Capacities

91.5 gal 346.3 L

Transmission

constant mesh

Operating Weight

30895 lbs 14013 kg

Overview

	1951 - 1955 Agricultural Crawler tractor

Production
Manufacturer	Allis Chalmers
Agricultural Crawler tractor
Built in Springfield, Illinois, USA
Total built	3,909

Allis Chalmers HD15 Engine
General Motors 7.0L 6-cyl diesel
Engine details ...

Allis Chalmers HD15 Transmission
6-speed
Transmission details ...

Allis Chalmers HD15 Power
Drawbar (claimed)	82 hp 61.1 kW
Belt (claimed)	105 hp 78.3 kW
Drawbar (tested)	104.4 hp 77.9 kW
Belt (tested)	117.7 hp 87.8 kW
Performance test details ...

Mechanical
Drive	crawler
Steering	hydraulic steering clutches
Open operator station.

Capacity
Fuel	91.5 gal 346.3 L
Steering	10 qts 9.5 L

Dimensions & Tracks
Weight	27850 to 30895 pounds
20-inch tracks
Full dimensions and tracks ...

Belt Pulley
Diameter	18 inches 45 cm
Width	15 inches 38 cm
RPM	693
Speed	3266 ft/min 995.48 meters/min

Engine

Engine Detail — 426 ci / 7.0 L Diesel

Manufacturer	General Motors
Configuration	6-cylinder, liquid-cooled 2-cycle vertical I-head
blower diesel
Displacement	426 ci 7.0 L
Bore/Stroke	4.25x5.00 inches 108 x 127 mm
Compression	16.0:1
Rated RPM	1600
Starter volts	12
Oil capacity	20 qts 18.9 L
Coolant capacity	47 qts 44.5 L

Transmission

Transmission — constant mesh

Transmission	constant mesh
Gears	6 forward and 3 reverse
Oil capacity	34 qts 32.2 L

Dimensions

Allis Chalmers HD15 Tracks
Width	20 inches 50 cm

Dimensions
Length	181 inches 459 cm
Width	96.75 inches 245 cm
Height	95 inches 241 cm
Shipping weight	27850 lbs 12632 kg
Operating weight	30895 lbs 14013 kg
Ground clearance	14.375 inches 36 cm
Gauge	74 inches 187 cm

Tests

Nebraska Tractor Test 464
July 17 - August 2, 1951 Link: Nebraska Tractor Test 464 file
Belt power (max)	117.7 hp 87.8 kW
Drawbar performance
Max power	104.4 hp 77.9 kW
Max pull	29400 lbs 13335 kg
Gear 1 used for pull test.

Photos

Allis Chalmers HD15 tractor photo

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers HD15.

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