Either an electrical problem, or the compressor has tripped on a safety device. Check supply power. Check for errors on display. Check emergency stop is out. Check and reset the overload relay. If it's a new installation, check the phase sequence. [pdf]
A two-stage rotary screw compressor takes in atmospheric air but “shares the work” over two separate compression processes and cools it in between. The difference between the two is not the end result,. [pdf]
DTH is short for “down-the-hole”. Since the DTH method was originally developed to drill large-diameter holes downwards in surface-drilling applications, its name originated from the fact that the percussion mechanism followed the bit down into the hole. Applications were later found for the DTH method underground, where the direction of drilling is generally upwards instead of downwards. [pdf]
When changing your air compressor’s oil, follow the instructions in your manual. Although the basics of an oil change are simple—drain the old oil and then pour in new oil—the individual steps can be. [pdf]
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