Outline Specifications.
Engine.—Four cylinder, four cycle, valve-in-the-head type. Bore 4.74”. Stroke, 6”. Cylinder case in pairs. Horsepower 56 at 1,200 revolutions per minute.
Radiator.—Honey-comb tubular type. Eight separate headers.
Ignition.—Eisemann, Model G-4, high tension magneto with automatic impulse starter.
Carburetor.—Model A Schebler carburetor with Stewart vacuum feed system; 1.5”.
Governor.—Centrifugal flyball type mounted on special shaft and driven off camshaft gear.
Master Clutch.—Dry plate multiple disk type.
Transmission.—Selective sliding gear type. Three speeds forward, one reverse. Direct drive on second. Stepped up on high.
Drive.—From transmission through bevel gears to steering clutch shaft through steering clutches to spur pinions, which mesh with intermediate spur gears, thence through outside gears, encased, to sprocket drive sleeve and drive sprockets.
Steering Clutches.—Two used of dry plate multiple disk type.
Steering.—By means of steering clutches operated from hand steering device and brake bands operated by foot pedals, which act on outside of steering clutch drums.
Control.—Steering gear located on the right hand side. Change gear, master clutch operating lever, and brake lever, left of steering gear, left to right respectively. Spark and throttle levers operate on sector clamped to steering column. Steering clutch pedals right and left at bottom of, and in front of steering column.
Brakes.—One set. External contracting type. Raybestos, or equal, lined. Operate on steering clutch housings.
Gasoline Tank.—Terneplate tanks. Two independent duplicate tanks each of 12 gallon capacity. Auxiliary terneplate tank under armor, 10-gallon capacity.
Main Frame.—Cast in one piece-open hearth steel.
Roller Frames.—Four frames steel channel, joined by oscillating shaft. Two frames right and left front. Two frames right and left rear.
Truck Rollers.—Six on each side of tractor, fitted with roller bearings, turned on steel gudgeons, flanked to follow track rail.
Track.—Made up of malleable iron track shoes with track links. Integral, fitted with space blocks, and 1.25” pins.
Track Drive Sprockets.—Two. Teeth mesh with opening in tracks.
Blank Sprockets.—Two. Fitted with roller bearings which turn on steel gudgeons. Used to adjust track tension.
Track Supporting Rollers.—Four on each side of tractor, two mounted on brackets attached to front roller frame channel, and two in the rear mounted on spring bracket which is bolted to main frame.
Springs.—Four double coil springs at rear, two on each side between rear roller frame and bracket on main frame and four—two on each side of equalizing bar at front.
Equalizing Bar.—Spring supported on front roller frame sections.