Aultman & Taylor 15-30

The Aultman & Taylor 15-30 is a tractor produced by Aultman Taylor. It is equipped with a 510.5 ci 8.4 L engine. The listed engine power is 30.4 hp 22.7 kW. Transmission: 1 forward and reverse. Operating weight: 8,240 lbs 3737 kg.

Engine Power

30.4 hp 22.7 kW

Fuel & Capacities

16 gal 60.6 L

Transmission

1 forward and reverse

Operating Weight

8,240 lbs 3737 kg

Overview

	1919 - 1923

Production
Manufacturer	Aultman & Taylor
Built in Mansfield, Ohio, United States

Aultman & Taylor 15-30 Engine
Climax 8.4L 4-cyl gasoline
Fuel tank	16 gal 60.6 L
Aux. fuel	6 gal 22.7 L
Engine details ...

Aultman & Taylor 15-30 Transmission
1-speed
Transmission details ...

Aultman & Taylor 15-30 Power
Drawbar (tested)	21 hp 15.7 kW
PTO (tested)	30.4 hp 22.7 kW
Belt (tested)	34.37 hp 25.6 kW
Performance test details ...

Mechanical
Two-wheel drive

Dimensions & Tires
Wheelbase	98.5 inches 250 cm
Weight	8,240 lbs 3737 kg
Front tire	36x5
Rear tire	70x12
Full dimensions and tires ...

Engine

Engine Detail — 510.5 ci / 8.4 L Gasoline

Manufacturer	Climax
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Displacement	510.5 ci 8.4 L
Bore/Stroke	5.00x6.50 inches 127 x 165 mm
Rated RPM	900
Coolant capacity	20 qts 18.9 L

Transmission

Transmission — 1 forward and reverse

Gears

1 forward and reverse

Dimensions

Aultman & Taylor 15-30 Tires
Ag front	36x5 (steel)
Ag rear	70x12 (steel)

Dimensions
Wheelbase	98.5 inches 250 cm
Length	176 inches 447 cm
Height	104 inches 264 cm
Weight	8,240 lbs 3737 kg

Tests

Nebraska Tractor Test 31
Gasoline July 1920
Belt power (max)	34.37 hp 25.6 kW
Belt fuel use (max)	5.9 gal/hour 22.3 l/hour
PTO performance
Power at rated engine speed	30.4 hp 22.7 kW
Fuel use	4.1 gal/hour 15.5 l/hour
Drawbar performance
Max power	21 hp 15.7 kW

Recommended Implements & Sizing Guide

Engineering recommendations for Aultman Taylor Aultman & Taylor 15-30 based on its 30.4 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.

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 Aultman Taylor Aultman & Taylor 15-30.

Estimated Continuous Field Runtime: 10.1 hrs

Approximately 10.1 hours of continuous field operation at ~75% rated power on a full tank (16 gal / 60.6 L).

Estimated 75% Load Fuel Burn~1.6 gal/hr (6 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

Aultman Taylor Aultman & Taylor 15-30 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Aultman Taylor Aultman & Taylor 15-30.

Enter value:

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Converted Equivalents:

Horsepower (HP)30.4 hp

Kilowatts (kW)22.7 kW

Metric Horsepower (PS / CV)30.8 PS

Direct Competitor Comparison

Compare Aultman & Taylor 15-30 against same-era industry alternatives in the same horsepower class.

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