Задняя перекидка переключатель велосипеда, ремонт, реставрация, настройка Shimano Tourney

Introduction

This tutorial provides a step-by-step guide on repairing, restoring, and adjusting a Shimano Tourney rear derailleur. Understanding how to maintain your derailleur can enhance your bike's performance and prolong its lifespan. Whether you're facing shifting issues or just want to improve your bike's overall functionality, this guide will help you through the process.

Step 1: Gather Necessary Tools

Before you start, ensure you have the following tools:

• Screwdrivers (Phillips and flathead)
• Allen wrenches (sizes may vary)
• Chain tool (for chain removal)
• Lubricant (bike-specific is preferred)
• Cleaning cloths

Step 2: Remove the Rear Derailleur

1. Shift to the smallest gear to relieve tension on the derailleur.
2. Disconnect the chain from the derailleur using a chain tool.
3. Unscrew the derailleur from the derailleur hanger using the appropriate Allen wrench.

Step 3: Clean the Derailleur

1. Use a cleaning cloth to wipe off any dirt or grime.
2. Apply a degreaser if necessary and scrub the components gently.
3. Rinse with water and dry thoroughly.

Step 4: Inspect for Damage

• Look for any cracks or bends in the derailleur body or the hanger.
• Check the pulleys for wear and tear; replace them if they are damaged.

Step 5: Lubricate Moving Parts

1. Apply lubricant to the pivot points of the derailleur.
2. Ensure that the jockey wheels (pulleys) are well-lubricated for smooth operation.

Step 6: Reinstall the Rear Derailleur

1. Position the derailleur back on the hanger.
2. Secure it with the screws, ensuring it is tight but not over-torqued.

Step 7: Adjust the Derailleur

1. Set the limit screws:

   • Adjust the high limit screw to prevent the chain from shifting off the smallest cog.
   • Adjust the low limit screw to stop the chain from going off the largest cog.

2. Fine-tune the cable tension:

   • Pull the cable tight and secure it in the derailleur.
   • Shift through the gears to check for smooth operation. Adjust cable tension if needed.

Step 8: Test the Shifting

1. Shift through all gears while pedaling to ensure everything operates smoothly.
2. Make any necessary adjustments to the limit screws or cable tension based on performance.

Conclusion

By following these steps, you can effectively repair, restore, and adjust your Shimano Tourney rear derailleur. Regular maintenance will help in achieving optimal shifting performance and prolong the life of your bike components. For further improvements, consider exploring other maintenance tutorials on bike components or advanced derailleur adjustments.