Avery Track Runner

Last Updated: July 2024

Overview

The Avery Track Runner is a half-track crawler type tractor with a unique chassis containing front wheels and rear tracks. The tractor has a gear-type transmission with 3 forward gears and 1 reverse gear. It's powered by Avery's proprietary 4-cylinder, liquid-cooled gasoline engine with a displacement of 276.5 cubic inches, rated at 1125 RPM and governed by a Sharo governor. The engine uses a Kingston carburetor and a 'United' Whirlwind vane type air cleaner. The Track Runner measures 108 inches in length, 48 inches in width, and 58 inches in height, with an operating weight of 5600 pounds. In Nebraska Tractor Tests, it demonstrated a maximum power of 29.44 HP with various performance metrics recorded for drawbar and belt operations.
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Key Specifications

Category: Crawler

Transmission: Gear

Operating Weight: 5600

Fuel Type: Gasoline

Avery Track Runner vs. Similar Tractors

Operating Weight
Average
Greater than 31% of similar tractors.

Technical Specifications

Engine

Manufacturer
Avery
Model
-
Cooling Type
Liquid-cooled
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
Gasoline
Induction Type
Natural Aspiration
Cylinders
4
Displacement (ci)
276.5
Bore (in)
4
Stroke (in)
5.5
Rated RPM
-
Power Output (hp)
-

Transmission

Type
Gear
Forward Gears
3
Reverse Gears
1
Total Gears
-

Dimensions

Length (in)
108
Width (in)
48
Height (in)
58
Operating Weight (lb)
5600

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
Half-track
Drive Type
-
Steering Type
-
Coolant Capacity (qts)
-
Front Tire Diameter (in)
Track
Front Tire Width (in)
Track
Rear Tire Diameter (in)
Track
Rear Tire Width (in)
Track
Front/Rear Rim Diameter (in)
-
Tire Type
Track
Manufacture - End Year
-
Hitch Type
-
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
-
Brake Type
-
Hydraulic System Type
-

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1923

Maximum Power and Fuel Consumption

  • Maximum Power: 29.44 HP
  • Fuel Consumption at Rated Load: 0.045 Gal/HP.hr
  • Fuel Consumption at Maximum Load: 0.60 Gal/min
  • Water Consumption: 10.46 lbs/hr

Drawbar Performance

  • Power at Rated Engine Speed: 18.15 HP with a drawbar pull of 3,280 lbs and a speed of 2.30 mph
  • Fuel Consumption at Rated Load: 0.277 Gal/hr

Engine Performance

  • Crankshaft Speed at Maximum Power: 1,665 RPM
  • Fuel Consumption at Maximum Power: 0.41 Gal/hr

Hydraulic and Miscellaneous Performance

  • Belt Slippage: 0.7%
  • Oil Consumption: 2.5 gallons over the complete test duration (approximately 14 hours)

Repairs and Adjustments

  • Numerous adjustments and repairs were performed, including advanced timing, replacement of broken track rollers, installation of new track rollers, and new engine rings.

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