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Home / News / Industry News / How to Properly Adjust Pole Saw Chain Tension to Prevent Chain Jumping?
1. The Necessity of Adjusting Chain Tension
Safety Guarantee: Improper chain tension is a major cause of chain jumping, splashing, and personal injury.
Extended Service Life: Proper tension reduces wear on the chain and guide plates, preventing premature failure.
Improved Work Efficiency: Smooth chain operation minimizes cutting resistance and allows for faster operation.
Relevance to Manufacturer's Quality System: NINGBOAOSHENGMACHINECO.,LTD. employs strict QC/QA controls to ensure that the tension adjustment components of every Pole Saw meet design standards.
2. Preparations Before Adjustment
Turn off the engine and disconnect the ignition: Ensure the chain has completely stopped rotating to prevent accidental starting.
Prepare Specialized Tools: Use standard repair tools such as Allen wrenches and screwdrivers.
Inspect the Chain and Guide Plates: Confirm that the chain has no obvious wear or breakage, and that the guide plate surface is smooth and free of jamming.
1. Model Confirmation: Different models (e.g., AS-GZ330, AS-GZ260) have slight differences in the cover structure; operation must be performed according to the specific model.
3. Key Steps for Chain Tension Adjustment
Remove the Tension Adjustment Cover
Use a screwdriver or Allen wrench to loosen the side cover screws, exposing the tension screw.
Loosen the Guide Plate Fixing Bolts
Slightly loosen the fixing bolts on both sides of the guide plate to allow for fine-tuning of the guide plate's position.
Adjust the Tension Screw
Clockwise Rotation → Chain tension;
Counterclockwise Rotation → Chain relaxation.
During adjustment, gently pull the end of the chain and feel the change in resistance.
Check for Proper Tension
Manually pull the chain; the chain should move slightly without significant sagging or slack.
4. Post-Adjustment Inspection and Verification
Re-secure the guide plate and reinstall the cover: Ensure the bolts are tightened to the specified torque and the cover is tightly closed.
Low-Speed Test Run: Start the engine to its lowest speed and observe whether the chain runs smoothly without jumping.
Noise and Vibration Check: Under normal circumstances, there should only be a slight operating sound. If abnormal noise occurs, the tension needs to be rechecked.
Record Adjustment Values: Mark the number of rotations or scale marks on the tension screw for future maintenance reference.
5. Common Problems and Preventive Measures
Chain Too Loose → Prone to chain slippage or skipping; tension should be increased appropriately and the guide plate should be checked for wear.
Chain Too Tight → Increases friction, leading to rapid wear or excessive engine load; it needs to be loosened appropriately.
Guide Plate Wear → Even with proper tension, an uneven guide plate surface can cause chain slippage; replace the guide plate if necessary.
Regular Lubrication and Maintenance → Use the manufacturer's recommended chain grease to maintain lubrication between the chain and the guide plate, preventing abnormal tension due to dry friction.
