However, it's effectively a smaller size tractor, so it falls short of the pushing ability of the HD16 by about 20% at least. The D6C will have better parts availability, and is a very nice little tractor, well balanced and very reliable. The Cat D6C is a lighter machine with less HP and less weight, the HD16 is closer to Cat D7 size, and has substantially more production capabilities than the D6C.ĭepending on the age of the D6C you're talking, the D6C could be an early 120HP model (1963-1970) or a later 140HP model (1970-on). In 1964, the 16000H series engine appeared, the "H" standing for High Speed. The powershift HD16DP model did not appear until 1964. HD16DC - (from 1960-on) - long track frame, 7 track rollers, torque converter drive, 74 in gauge, direct injection 16000 series engine, 163 Gross HP, 160 Net HP. HD16D - (from 1960-on) - long track frame, 7 track rollers, direct (gear) drive, 74 in gauge, direct injection 16000 series engine, 163 Gross HP, 160 Net HP. HD16AC - short track frame, 6 track rollers, torque converter drive, 74 in gauge, direct injection 16000 series engine, 163 Gross HP, 160 Net HP. HD16A - short track frame, 6 track rollers, direct (gear) drive, 74 in gauge, direct injection 16000 series engine, 163 Gross HP, 160 Net HP. The HD16 of 1962 came in the following models: The Ag models had shorter track frames with a lesser number of lower track rollers to facilitate easy turning. The Agricultural models had a "soft nose" with a side-hinged grille, and were fitted with a drawbar for tillage work. The Construction versions were fitted with a hard nose that was capable of mounting blade hydraulic cylinders on. The HD16, like nearly all the A-C tractors, came in "Construction" models and "Agricultural" models. Parts will be a problem for this tractor because the A-C company has not existed since 1985 - and just the tractor being 50 yrs old, is enough of a challenge for spares availability. The A-C tractors are simple to fix as they require no pullers, no specialist tools, and can be repaired anywhere by anyone with basic mechanical knowledge. All A-C equipment was well engineered, but was finely-engineered, with less reserve strength than Cats. On a cold day, working hard, you can see the fuel tank steaming!ĭON'T attempt to turbocharge this engine, they will not cope with turbocharging and will blow up. This has the effect of also pre-warming the fuel, as the diesel is circulated back to the tank. The diesel from the fuel tank is pumped through the torque converter, instead of oil. With the torque converter drive model, A-C used a diesel torque converter. These were a very good old tractor with excellent reliability. The HD16 will either be direct drive (dry master clutch with sliding gear manual transmission) or torque converter drive (twin disc torque converter, coupled to dry clutch and sliding gear manual transmission).
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