1. مقدمة ومعلومات السلامة
This manual provides essential instructions for the safe and effective operation, maintenance, and troubleshooting of your ECHO CS-271T-12 Gas Chain Saw. Read and understand all instructions and safety precautions before operating the chain saw. Failure to do so can result in serious injury or death.
احتياطات السلامة الهامة:
- Always wear appropriate personal protective equipment (PPE), including a helmet, eye protection, hearing protection, heavy-duty gloves, and safety boots.
- Never operate the chain saw when fatigued, under the influence of alcohol, drugs, or medication.
- تأكد من خلو منطقة العمل من المارة والأطفال والحيوانات الأليفة.
- Inspect the chain saw before each use for loose parts, damage, or wear.
- انتبه للارتداد وكيفية تجنبه.
- تعامل مع الوقود بحذر شديد؛ فهو شديد الاشتعال.

الشكل 1: انتهىview of the ECHO CS-271T-12 Gas Chain Saw. This image displays the complete chain saw with its 12-inch bar and chain, highlighting its compact design.
2. الإعداد والتجميع
2.1 فك العبوة والتفتيش
Carefully remove the chain saw and all components from the packaging. Inspect for any shipping damage. If any damage is found, do not operate the unit and contact your dealer.
2.2 تركيب القضيب والسلسلة
- Ensure the chain brake is disengaged.
- Remove the chain cover nuts and chain cover.
- Place the chain around the clutch drum and guide bar, ensuring the cutting edges face forward on the top of the bar.
- Mount the guide bar onto the studs, aligning the chain tensioner pin with the hole in the guide bar.
- أعد تركيب غطاء السلسلة وقم بربط الصواميل يدويًا.
- Adjust chain tension using the side access chain tensioner until the chain is snug but can still be pulled freely by hand.
- أحكم ربط صواميل غطاء السلسلة بالكامل.
2.3 Fuel and Chain Oil
This chain saw requires a specific fuel mixture and chain lubricant.
- خليط الوقود: Use a 50:1 ratio of high-quality 2-stroke engine oil to unleaded gasoline (minimum 89 octane). Mix thoroughly in a separate, approved fuel container.
- زيت السلسلة: Use a high-quality bar and chain oil. Do not use waste oil or motor oil, as this can damage the chain and bar.
Fill the fuel tank and chain oil reservoir, ensuring not to overfill. Wipe up any spills immediately.

Figure 2: Top handle view of the ECHO CS-271T-12, showing the model number label and the ergonomic handle design for control.
3. تعليمات التشغيل
3.1 تشغيل المحرك (التشغيل البارد)
- Place the chain saw on a firm, flat surface. Ensure the chain brake is engaged.
- Press the purge bulb several times until fuel is visible in the return line.
- حرك ذراع الخانق إلى وضع الخنق الكامل.
- Pull the starter handle firmly and quickly until the engine fires (usually 1-3 pulls). Do not pull the rope to its full extension.
- Once the engine fires, move the choke lever to the HALF CHOKE position.
- Pull the starter handle again until the engine starts and runs.
- Once the engine is running, move the choke lever to the RUN position. Allow the engine to warm up for a few moments.
- Disengage the chain brake before beginning cutting operations.
3.2 تشغيل المحرك (التشغيل الدافئ)
- تأكد من تعشيق فرامل السلسلة.
- حرك ذراع الخانق إلى موضع RUN.
- Pull the starter handle firmly and quickly until the engine starts.
- Disengage the chain brake before beginning cutting operations.
3.3 تقنيات القطع
Always maintain a firm grip with both hands on the chain saw handles. Stand with your feet apart for balance. Avoid cutting with the tip of the guide bar to prevent kickback.
- تطويق: Remove branches from a fallen tree. Work from the bottom up, supporting the branch if necessary to prevent pinching.
- مخالفة: Cut a fallen log into sections. Be aware of tension and compression in the wood to avoid pinching the bar.
4. الصيانة
تضمن الصيانة الدورية الأداء الأمثل وتطيل عمر منشار السلسلة الخاص بك.
4.1 الشيكات اليومية
- التحقق من شد السلسلة.
- Verify chain sharpness.
- Inspect the guide bar for wear or damage.
- Check chain oil flow.
- تنظيف فلتر الهواء.
4.2 شحذ السلسلة
A sharp chain is crucial for safe and efficient cutting. Use a round file of the correct diameter (refer to chain specifications) and a filing guide. File all cutters to the same length and angle.
4.3 تنظيف فلتر الهواء
Remove the air filter cover and clean the filter element. Wash foam filters with warm, soapy water, rinse, and allow to dry completely before reinstallation. Replace damaged filters.
4.4 فحص شمعة الإشعال
Remove the spark plug and inspect for fouling or wear. Clean or replace as necessary. Ensure the correct gap is set.

الشكل 3: الجانب view of the ECHO CS-271T-12 engine, showing the cooling fins and general engine layout, relevant for maintenance access.
5. استكشاف الأخطاء وإصلاحها
This section addresses common issues you might encounter with your ECHO CS-271T-12 chain saw.
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| المحرك لن يبدأ | No fuel, incorrect choke setting, fouled spark plug, flooded engine | Check fuel level, adjust choke, clean/replace spark plug, follow de-flooding procedure in main manual |
| المحرك يعمل بشكل سيئ/يفتقر إلى الطاقة | Dirty air filter, stale fuel, incorrect fuel mixture, dull chain | Clean air filter, use fresh fuel, ensure correct fuel mix, sharpen chain |
| السلسلة لا تقطع بكفاءة | Dull chain, incorrect chain tension, worn guide bar | Sharpen chain, adjust tension, inspect/replace guide bar |
| Chain oil not flowing | خزان زيت فارغ، منفذ زيت مسدود، مضخة زيت تالفة | Refill oil tank, clean oil port, consult service center for pump issues |
6. المواصفات
| ميزة | مواصفة |
|---|---|
| ماركة | صدى |
| رقم الموديل | CS-271T-12 |
| مصدر الطاقة | تعمل بالبنزين |
| سعة المحرك | 26.9 سم مكعب |
| قوة الحصان | 5.3 حصان |
| طول السلسلة | 12 بوصة |
| أبعاد المنتج (الطول × العرض × الارتفاع) | 12 بوصة × 10 بوصة × 10 بوصة |
| وزن العنصر | 10.18 رطل |
| رمز المنتج الموحد | 743184001974 |
| نظام التشغيل | i-30 (reduced effort starting) |
| ميزات السلامة | Inertia-type chain brake, vibration-reduction system |
7. الضمان والدعم
ECHO products are backed by a comprehensive warranty. For specific warranty details, please refer to the warranty card included with your product or visit the official ECHO website. For technical support, parts, or service, contact your authorized ECHO dealer or visit www.echo-usa.com.





