Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Stihl 26RM3 Rapid Micro Chainsaw Chain. This chain is designed for Stihl chainsaws requiring an 18-inch chain with a .325-inch pitch and .063-inch gauge, such as the Stihl MS 250 model. Adhering to these instructions will help ensure safe and efficient use, and prolong the life of your chainsaw chain.

Image: Two Stihl 26RM3 Rapid Micro Chainsaw Chains, packaged for retail. The packaging displays the Stihl logo and chain specifications.
Safety Information
Always prioritize safety when handling and operating chainsaw chains. Failure to follow safety guidelines can result in serious injury.
- Read Chainsaw Manual: Always refer to your chainsaw's instruction manual for specific safety procedures and chain installation guidelines.
- Personal Protective Equipment (PPE): Wear appropriate PPE, including safety glasses, hearing protection, gloves, and protective legwear, when handling or operating a chainsaw.
- Sharp Edges: Chainsaw chains are extremely sharp. Handle with care to prevent cuts.
- Proper Tension: Ensure the chain is correctly tensioned before each use. An improperly tensioned chain can derail, causing injury or damage.
- Lubrication: Always ensure the chainsaw's oiler system is functioning correctly and the chain is adequately lubricated during operation.
Setup and Installation
Installing a new chainsaw chain requires careful attention to detail. Always consult your chainsaw's specific manual for detailed instructions relevant to your model.
- Ensure Chainsaw is Off: Before beginning, ensure the chainsaw engine is off, the spark plug cap is removed (for gasoline models), or the battery is disconnected (for electric models). Engage the chain brake.
- Remove Bar Cover: Loosen the bar nuts and remove the clutch cover/side plate.
- Remove Old Chain: Carefully remove the old chain and guide bar. Inspect the guide bar for wear or damage.
- Install New Chain: Place the new Stihl 26RM3 chain onto the guide bar, ensuring the cutting edges face the correct direction (usually forward on the top of the bar). The drive links should fit into the groove of the guide bar.
- Mount Bar and Chain: Position the guide bar and chain onto the chainsaw, ensuring the drive links engage with the sprocket.
- Replace Cover and Tension: Reinstall the clutch cover/side plate and hand-tighten the bar nuts. Adjust the chain tension according to your chainsaw's manual. The chain should be snug against the bar but still able to be pulled freely by hand.
- Final Tightening: Once tensioned, fully tighten the bar nuts.

Image: A detailed view of a single Stihl chainsaw chain link, highlighting the sharp cutting tooth and the design of the drive link.
Operating Guidelines
Proper operation ensures optimal cutting performance and user safety.
- Check Chain Tension: Always check chain tension before starting work and periodically during operation. The chain will stretch slightly during initial use.
- Ensure Lubrication: Verify that the chainsaw's automatic oiler is supplying oil to the chain. A dry chain can quickly overheat and wear out.
- Proper Cutting Technique: Use correct cutting techniques as outlined in your chainsaw's manual to prevent kickback and ensure efficient cutting.
- Avoid Ground Contact: Do not allow the chain to contact soil, rocks, or metal, as this will dull the chain rapidly.
Maintenance
Regular maintenance is crucial for the longevity and performance of your Stihl chainsaw chain.
- Sharpening: Sharpen the chain regularly. A sharp chain cuts efficiently and reduces strain on the chainsaw. Use the correct file size and angle as specified by Stihl for the 26RM3 chain.
- Cleaning: After each use, clean the chain and guide bar to remove sawdust, sap, and debris. This prevents buildup that can impede chain movement and oil flow.
- Inspection: Inspect the chain for damaged or missing links, cracks, or excessive wear. Replace the chain if any significant damage is found. Check the guide bar for burrs or uneven wear.
- Lubrication: Ensure the chain oil reservoir is filled with appropriate bar and chain oil.
Troubleshooting
Here are common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chain dulls quickly | Contact with dirt, rocks, or metal; improper sharpening angle. | Avoid ground contact. Sharpen chain correctly. |
| Chain comes off guide bar | Incorrect chain tension; worn guide bar or sprocket. | Adjust chain tension. Inspect and replace worn components. |
| Poor cutting performance | Dull chain; incorrect chain tension; insufficient lubrication. | Sharpen chain. Adjust tension. Check oiler and oil level. |
| Chain smoking or overheating | Lack of lubrication; incorrect chain tension; dull chain. | Check oiler and oil level. Adjust chain tension. Sharpen chain. |
Specifications

Image: A product label detailing the Stihl 26RM3-68 chain specifications, including model number, chain length, pitch, and gauge.
| Feature | Detail |
|---|---|
| Model Number | 26RM3 |
| Chain Type | Rapid Micro (Semi-Chisel or Full Chisel) |
| Chain Length | 18 Inches |
| Pitch | .325 Inches |
| Gauge | .063 Inches |
| Drive Link Count | 68 |
| Manufacturer | Stihl |
| Part Number | PD-30332 |
| Item Weight | 1.21 pounds |
| Compatible Power Source | Gasoline-powered chainsaws (e.g., Stihl MS 250) |
Warranty and Support
For detailed warranty information, product support, or to locate an authorized service dealer, please visit the official Stihl website or contact Stihl customer service directly. Always use genuine Stihl parts and accessories to maintain product integrity and warranty coverage.

Image: The reverse side of the Stihl chain packaging, displaying manufacturer information and the official website, www.stihl.com.
Manufacturer: Andreas Stihl AG & Co. KG
Website: www.stihl.com