Originally Posted by
mike1
Wow a tank you don't see that everyday. I bet that would be a huge radiator I wonder what it's like to ride in a tank or something with treads I wonder if it's bumpy. Restore it and run through town that will get heads turning.
Mike that unit would have had a radiator for the engine plus another large high pressure rad on the compressor side used to cool and separate the oil from the air., This tank drill as their know would have had a rotary screw compressor, the oil in the system flows through the compressor for lubrication and sealing the slight gap between the screws.
Another type of large of air compressor is the rotary vane, should a vane disintegrate it can destroy the whole compressor casting.
Often used in old logging camps to drill blast holes into rock where they need a road were large portable piston units. those also used a large radiator to cool the air, due to the high air pressure those rads were extra heavy duty.
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