Reparación de taladro rotomartillo Bosch que solo gira hacia la izquierda

🔧 Bosch Drill Repair with Rotation Failure: Solution Without Changing Expensive Parts In this video, I show you how to diagnose and repair a Bosch drill that only rotated in one direction. The owner needed it for drilling, but the equipment only worked in reverse mode (unscrewing). Through a visual and physical inspection, we identified the source of the problem and solved it without replacing expensive components. ⚙️ Initial Symptom: The drill only rotates counterclockwise. When changing the direction of rotation, it does not respond. Both directions are required for proper drilling. 🔍 Step-by-Step Diagnosis: Initial Functional Test: Plug in the drill and verify that reverse rotation works, but forward rotation does not. Structured Disassembly: This model separates the electrical system from the mechanical system. Remove the drill head first, as it locks the side covers. Remove the casing screws to access the interior. Visual and Physical Inspection: Connections, terminals, and internal components are inspected. A loose terminal is detected on the carbon brush holder. This looseness causes false contact when changing the direction of rotation. 🛠️ Solution Applied: The terminal is cleaned with a razor blade to improve electrical contact. The terminal is tightened with pliers to ensure tightness. The connection is verified to be loose. The unit is partially reassembled for functional testing. 🔌 Functional Test: The drill is connected and rotation is tested in both directions. The equipment responds correctly in both forward and reverse rotation. It is confirmed that the problem was the false contact of the terminal. 🔩 Final Reassembly: The head is replaced, aligning the gears for proper fit. It is recommended to tighten the screws crosswise to center the head. The speed knob and mode selector (chiseling/drilling) are checked. ✅ Final result: The drill is fully functional, with no need to replace brushes, switches, or internal components. Only a loose terminal that prevented contact in one direction of rotation needed to be adjusted. 📚 Viewer learning: How to identify rotational faults in power tools. The importance of checking physical connections before replacing parts. Safe disassembly and reassembly techniques for Bosch models. Tips for tightening terminals and improving electrical contact. 🎯 Ideal for: Technicians in training, DIY enthusiasts, and those looking to save money by repairing their own tools. 📢 Don't forget: Like and share this video with anyone who needs it, subscribe for more technical content, and we'll see you in the next tutorial.