Harbor Freight Tools 67255 User Manual - Page 10

Safety Setup Guide Bar and Saw Chain Installation and Adjustment TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Make sure that the Trigger is in the off‑position and unplug the tool from its electrical outlet before performing any procedure in this section. The Chain Saw is supplied with the Chain Guide Bar and Saw Chain pre-installed and no assembly is required. Before first use and before each use thereafter, check the Saw Chain tension. Note: New Saw Chains often need to be tensioned several times during first use. Check a new Saw Chain's tension often when first using. Follow the directions in the following sections for checking and adjusting Saw Chain tension and for replacing the Saw Chain when necessary. Checking Saw Chain Tension 1. Before using, check the Saw Chain tension. 2. While wearing heavy-duty gloves, use your index finger and thumb to carefully grab the Saw Chain in the middle section under the Chain Guide Bar. 3. Pull the Saw Chain away from the Guide Bar. 4. The Saw Chain should snap back against the Guide Bar. The Chain should fit snugly in the groove of the Chain Guide Bar, yet you should still be able to slide the chain along the Chain Guide Bar by hand. 5. There should be no sagging between the Guide Bar and Saw Chain on the underside of the Guide Bar. Figure B: Checking Saw Chain Tension Adjusting Saw Chain Tension 1. Remove the Nut Cover (1) and loosen the Nut (2) on the Drive Cover (3). 2. Pull up on the Guide Bar Nose and hold it up while making the tension adjustment. 3. Turn the Tension Screw (26) clockwise, until the Saw Chain makes contact along the bottom of the Chain Guide Bar. Turn the Tension Screw 1/4 turn more. 4. Continue to hold the Guide Bar Nose up while tightening the Nut. 5. Check the Saw Chain tension again following steps 2 through 5 under Checking Saw Chain Tension above. If needed, repeat the adjusting steps to achieve the correct tension. 6. When adjustment is complete replace the Nut Cover. Chain Guide Bar (71) Tension Screw (26) Hex Key Figure C: Adjusting Saw Chain Tension Operation Maintenance Page 10 For technical questions, please call 1-888-866-5797. Item 67255