Caterpillar Twenty Eight Production
Manufacturer: Caterpillar
Factory: Peoria, IL
Years Built: 1933 – 1935
Caterpillar Twenty Eight Engine
Caterpillar, gasoline, 4-cylinder, 277 ci [4.5 L]
Power: 240 hp [179.0 kW]
Drawbar: 28 hp [20.9 kW]
Bore: 4.00×5.50 inches [102 x 140 mm]
Air Cleaner: oil bath
Compression: 15.7:1
Rated RPM: 1100
Starter volts: 2-cylinder pony engine
Caterpillar Twenty Eight Transmission
Transmission: powershift
Gears: 5 forward and 1 reverse
Speeds:
Caterpillar Twenty Eight Dimensions
Wheelbase: 85.625 inches [217 cm]
Weight: 4,500 lbs [2041 kg]
Caterpillar Twenty Eight Mechanical
Chassis: crawler
Steering: manual clutch
Brakes: contracting band
Cab: Open operator station.
Caterpillar Twenty Eight Hydraulics
HydraulicsType: closed center load sensing
HydraulicsValves: 5
HydraulicsPumpFlow: 26.4 gpm [99.9 lpm]