Stihl MS 400 C-M Instruction Manual

Stihl MS 400 C-M manual cover
Pages 148
Year 2020
Language(s)
English en
Spanish sp

Stihl MS 400 C-M Specification

The Stihl MS 400 C-M is a high-performance chainsaw designed for professional forestry and tree maintenance tasks. It features an innovative magnesium piston, making it the first chainsaw in the world to incorporate this technology, which results in reduced weight and increased power efficiency. The chainsaw is powered by a 66.8 cc 2-MIX engine, delivering an impressive power output of 4.0 kW. This engine technology not only ensures robust performance but also enhances fuel efficiency and reduces exhaust emissions, aligning with environmental standards.

Incorporating Stihl's advanced M-Tronic technology, the MS 400 C-M automatically adjusts the engine settings for optimal performance under varying conditions, ensuring consistent power delivery and ease of use. This intelligent engine management system simplifies starting and operation, allowing professionals to focus solely on the task at hand. The chainsaw's ergonomic design includes an anti-vibration system that reduces operator fatigue during extended use, enhancing comfort and control.

The MS 400 C-M also features a high-output oil pump, which provides reliable chain lubrication and contributes to the machine's longevity. Its robust construction and durable components make it suited for demanding work environments. The chainsaw includes a side-access chain tensioner for easy adjustments, as well as a captive nut on the sprocket cover to prevent loss during maintenance. With a power-to-weight ratio optimized for professional use, the Stihl MS 400 C-M stands out as a powerful, efficient, and reliable tool for forestry professionals seeking superior performance and innovative engineering in their equipment.

Stihl MS 400 C-M F.A.Q.

How do I start the Stihl MS 400 C-M chainsaw?

To start the Stihl MS 400 C-M, ensure it is on a stable surface. Set the Master Control Lever to the start position, pull the starter handle until you feel resistance, then give it a brisk pull. Repeat if necessary until the engine starts.

What should I do if the chainsaw chain is not cutting properly?

If the chain is not cutting properly, check if it is properly sharpened and tensioned. Ensure that the chain is not dull and the depth gauges are set correctly. Regular sharpening and maintenance can prevent these issues.

How often should I clean the air filter on my MS 400 C-M?

The air filter should be checked and cleaned after every 5 hours of operation, or more frequently in dusty conditions. A clean air filter ensures optimal performance and prolongs engine life.

Why is my Stihl MS 400 C-M stalling during operation?

Stalling can be caused by a clogged air filter, old or improper fuel, or a dirty carburetor. Check and clean the air filter, ensure the fuel is fresh, and clean the carburetor if necessary.

What type of fuel is recommended for the MS 400 C-M chainsaw?

Use a high-quality 2-stroke engine oil mixed with unleaded gasoline at a ratio of 50:1. This ensures optimal engine performance and longevity.

How do I replace the chain on the Stihl MS 400 C-M?

To replace the chain, first ensure the chainsaw is off and cooled down. Remove the sprocket cover, release the chain tension, remove the old chain, and fit the new chain onto the guide bar. Reinstall the sprocket cover and adjust the chain tension properly.

What is the correct way to tension the chain on the MS 400 C-M?

To tension the chain, loosen the nuts on the sprocket cover slightly and use the tensioning screw to adjust. The chain should be tight enough to not sag, yet move freely along the guide bar. Tighten the sprocket cover nuts once adjusted.

How do I maintain the bar and chain oil level?

Regularly check the bar and chain oil level before each use. Fill the reservoir with the recommended bar and chain oil to ensure proper lubrication during operation.

Why does my chainsaw produce excessive smoke?

Excessive smoke can result from using the wrong fuel mix, a clogged air filter, or an improperly adjusted carburetor. Verify the fuel mixture and clean the air filter. If the issue persists, check the carburetor settings.

What should I do if my MS 400 C-M won't start?

If the chainsaw won't start, check the fuel level and mixture, inspect the spark plug for wear and proper gap, and ensure the air filter is clean. If all else fails, consult a professional technician.