The Fordson Major Tractor was used as the basis of the County CD
50 Full Track Crawler tractor, specification of the CD50 tractor is
Max. h.p. at Engine Crankshaft: 52 at 1,600 engine rpm.
Max. h.p. at PTO Shaft: 25 (722 rpm) at 1,600 engine rpm.
Max. h.p. at Drawbar: 40.1 at 1,600 engine rpm.
Max. Crankshaft Torque: 162 lb/ft at 1,200 engine rpm.
Max. Drawbar Pull: 11,020 lb at 1.364 mph on 14 in. tracks.
Total Tractor Test Weight: 11,732 lb.
Engine: Ford Model 592E, 4-stroke, Water cooled diesel, Cylinders
= 4, Bore = 3.937 in. Stroke = 4.528 in. Displacement = 220.27 cu.
in. Compression ratio = 16.1:1, Operating speed range = 550 to 1,900
Transmission: Type = Gear.
Standard Speeds: Forward = 1.36, 1.78, 2.38, 3.28, 4.41 mph, Reverse
= 1.71, 3.07 mph.
Standard Tracks: Tread (centre to centre) = 53 in. Width = 14 in,
Length on ground = 54.5 in.
Turning Radius: 13 ft, Ground clearance = 11 in.
OVERALL DIMENSIONS: Length = 129.5 in. Width = 67.5 in.
Weight (as sold, without ballast): 10,107 lb.
PTO: Spline shaft, diameter = 1-3/8 in. Rotation, Clockwise, Viewed
Hydraulics: Maximum pressure =1,100 psi, Front mounted, 2,250 psi
inbuilt; Pump capacity = 13.0 and 4.93 gpm respectively.
Implement Attachment: Category = 1 and 2 linkage, Maximum lift at
hitch point = 3,000 lb.
Additional Equipment Available: Hydraulic dozer, Raised PTO, Remote