Spear & Jackson Petrol Chainsaw

This article explains how to resolve common issues when the chain on your petrol chainsaw cannot be tensioned correctly.

⚠️ Safety Notice

Ensure the chainsaw is switched off and placed in a safe position before carrying out any adjustment.

Wear suitable protective gloves when handling the chain.

Important Information

Correct chain tension is essential for safe and effective cutting. The method for adjusting chain tension varies depending on the model of your chainsaw.

Please refer to your instruction manual for model-specific guidance.

This model uses a sliding lever and tension knob.

1. Disengage the chain brake.
2. Slide out the lever on the adjustment knob and loosen slightly.
3. Use the outer tensioning knob to adjust chain tension.
4. Re-secure the bar by turning the lever clockwise.

If the Issue Persists

If you are still unable to tension the chain correctly after following the steps for your model, please contact our Technical Support Team for further assistance.

✔️ Summary

• Disengage chain brake before adjusting
• Use model-specific tensioning method
• Ensure chain lifts slightly from bar when correct
• Re-tighten all fixings securely