Correct method of wiring two screw air compressors

To connect two compressors in parallel, follow these steps: Make sure both compressors have the same voltage and phase. Install a check valve on each compressor’s discharge line to prevent backflow. Install a tee fitting on each compressor’s discharge line. Connect the two tee fittings with a pipe.. To connect two compressors in parallel, follow these steps: Make sure both compressors have the same voltage and phase. Install a check valve on each compressor’s discharge line to prevent backflow. Install a tee fitting on each compressor’s discharge line. Connect the two tee fittings with a pipe.. The Short Answer: The basic process involves setting up a single pressure switch system linking both compressors, using a check valve to prevent air backflow, and using suitable hoses or pipes. [pdf]

Rigid drill and impact

This combo kit features the Brushless 1/2 in. High Torque Hammer Drill, Brushless 4-Mode 1/4 in. Impact Driver, (2) batteries, charger, and a hard case. The high torque hammer drill/driver delivers 1,250 in./lbs. of torque for maximum power. [pdf]

Hydraulic rock drill has no impact

During use, the hydraulic rock drill may experience various failures, such as leakage, stuck drill, and no impact. Upon detecting a fault, promptly cease machine operation for inspection, identifying the cause, and addressing it immediately. [pdf]