It sounds like you are looking for the manual ("instruktsiia") for a Denzel air compressor, perhaps having trouble with one, or looking for a story about one!
He checked the outlet. Good. He looked at the pressure switch. It felt... loose.
Check the oil sight glass. If it's too low, the pump won't run, or it will damage the motor. instruktsiia denzel kompressor
If your Denzel compressor isn't working, check these common, critical steps [based on general Denzel maintenance principles]:
If it won't start, the pressure switch may be faulty or the pressure is already too high. It sounds like you are looking for the
If you are currently facing a specific issue with a Denzel compressor, please tell me the (e.g., Denzel DC 2100/50) and what the compressor is doing (e.g., "not turning on," "tripping the breaker," "taking too long to build pressure"), and I can give you a precise solution.
Many Denzel models have a red thermal overload reset button on the motor housing. Push it if it tripped. He looked at the pressure switch
Ivan’s Denzel compressor—a reliable workhorse for three years—was silent. He pushed the red switch up. Nothing. He pushed the red thermal reset button on the side. Silence.