This document provides operation and maintenance instructions for a semi-automatic polypropylene strapping machine. It details safety instructions, specifications, operation, adjustments, troubleshooting and spare parts. Key points include safety instructions to not operate the machine without covers or with safety devices removed. It also provides instructions on operating switches, adjusting tension, strap width and temperature, and maintaining the machine by cleaning and lubricating. Troubleshooting tips are given for issues like strap jams or bad sealing. Finally, diagrams of main parts and cabinet parts are shown.