1. Киришүү
This instruction manual provides essential information for the proper installation, adjustment, operation, and maintenance of your Shimano RD-M310 Altus SGS Rear Derailleur. This component is designed for 7-speed or 8-speed bicycle drivetrains. Please read this manual thoroughly before use to ensure safe and optimal performance of your bicycle's gear system.
2. Кутуда эмне бар
Таңгактан чыгарганда, бардык компоненттердин бар экенин жана бузулбаганын текшериңиз. Таңгактын ичинде төмөнкүлөр болушу керек:
- One Shimano RD-M310 Altus SGS Rear Derailleur
3. Орнотуу жана орнотуу
Installation of the rear derailleur requires specific tools and mechanical knowledge. If you are unsure about any step, it is recommended to seek assistance from a qualified bicycle mechanic.
3.1 Mounting the Derailleur
The RD-M310 Altus SGS is a direct mount type derailleur. Ensure your bicycle frame has a compatible derailleur hanger.
- Attach the derailleur to the derailleur hanger on your bicycle frame using the mounting bolt. Tighten the bolt securely to the manufacturer's recommended torque specifications.
- Route the shift cable from the shifter through the cable housing and attach it to the derailleur's cable fixing bolt. Ensure the cable is properly seated in all guides.
3.2 Limit Screw Adjustment
Limit screws prevent the derailleur from shifting the chain off the smallest or largest cogs.
- H (High) Limit Screw: Adjust this screw so that the upper guide pulley is directly aligned with the smallest cog when the chain is on the smallest cog.
- L (Low) Limit Screw: Adjust this screw so that the upper guide pulley is directly aligned with the largest cog when the chain is on the largest cog.
3.3 B-Tension Screw Adjustment
The B-tension screw adjusts the distance between the upper guide pulley and the cogs.
- Shift the chain to the largest cog on the cassette and the smallest chainring on the crankset.
- Adjust the B-tension screw so that the upper guide pulley clears the largest cog by approximately 5-6 mm. This ensures smooth shifting and prevents the pulley from rubbing against the cogs.
3.4 Cable Tension Adjustment
Fine-tune shifting performance using the barrel adjuster.
- Shift the chain to the smallest cog.
- Shift one click towards a larger cog. If the chain does not move, turn the barrel adjuster counter-clockwise in small increments until it shifts smoothly.
- If the chain overshifts or makes noise, turn the barrel adjuster clockwise in small increments.
Image: Shimano RD-M310 Altus SGS Rear Derailleur. This image shows the complete derailleur unit, highlighting its compact design and pulley system, essential for understanding installation and adjustment points.
4. Иштөө нускамалары
The Shimano RD-M310 Altus SGS derailleur works in conjunction with your shifters to move the chain across the rear cassette cogs.
- Shifting Up (to larger cogs): Press the appropriate lever on your shifter to move the chain to a larger cog, making pedaling easier.
- Shifting Down (to smaller cogs): Press the other lever on your shifter to move the chain to a smaller cog, making pedaling harder and allowing for higher speeds.
- Always pedal forward while shifting. Avoid shifting under heavy load to prevent damage to the drivetrain components.
- Shift one gear at a time for smoother transitions and to prolong component life.
5. Техникалык тейлөө
Regular maintenance ensures the longevity and optimal performance of your derailleur.
- Тазалоо: Regularly clean the derailleur, especially the pulleys, to remove dirt and grime. Use a degreaser specifically designed for bicycle components.
- Майлоо: After cleaning, apply a small amount of bicycle chain lubricant to the pivot points of the derailleur and the pulley bearings. Avoid over-lubricating, as this can attract more dirt.
- Текшерүү: Periodically check for any loose bolts, bent components (especially the derailleur hanger), or excessive play in the pivots. Address any issues promptly.
- Cable and Housing: Inspect the shift cable and housing for fraying, kinks, or corrosion. Replace them if necessary to maintain smooth shifting.
6. Кыйынчылыктарды
Бул жерде кээ бир жалпы маселелер жана алардын мүмкүн болуучу чечимдери:
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Poor or slow shifting | Incorrect cable tension, dirty cable/housing, bent derailleur hanger | Adjust cable tension using the barrel adjuster. Clean or replace cable/housing. Check and straighten/replace derailleur hanger. |
| Chain rubs on derailleur cage | Incorrect limit screw adjustment, bent derailleur cage | Re-adjust H or L limit screws. Inspect and carefully straighten the derailleur cage if bent, or replace the derailleur. |
| Chain falls off smallest/largest cog | Incorrect limit screw adjustment | Re-adjust H or L limit screws to prevent over-shifting. |
| Ызы-чуу операция | Lack of lubrication, dirty pulleys, incorrect B-tension | Clean and lubricate pulleys and pivot points. Adjust B-tension screw. |
7. Техникалык шарттар
| Өзгөчөлүк | Спецификация |
|---|---|
| Модель номери | RD-M310 (RDM310DL) |
| Сериялар | Altus SGS |
| Ылдамдыктын шайкештиги | 7-speed / 8-speed |
| Тоо түрү | Түздөн-түз тоо |
| Материал | Алюминий эритмеси |
| Түс | Кара |
| Салмагы | Болжол менен 326 г |
| Max Cog Size | 23 teeth (as per product data, typically 34T for SGS cage) |
| Өлчөмдөрү (L x W x Y) | 16 см х 16 см х 12 см |
8. Кепилдик жана колдоо
This Shimano RD-M310 Altus SGS Rear Derailleur comes with a 2 жылдык өндүрүүчү кепилдик сатып алынган күндөн тартып. Бул кепилдик нормалдуу колдонуудагы материалдардагы жана жасалгадагы кемчиликтерди камтыйт.
For warranty claims, technical support, or further assistance, please contact your authorized Shimano dealer or the retailer where the product was purchased. Keep your proof of purchase for warranty validation.
For detailed technical documents and service instructions, please refer to the official Shimano website or consult a professional bicycle mechanic.