Poulan 3450 User Manual - Page 7

Cutters Depth Gauge Drive Links S Place the chain over and behind the clutch, fitting the drive links in the clutch drum sprocket. Place chain onto the sprocket S Fit bottom of drive links between the teeth in the sprocket in the nose of the guide bar. S Fit chain drive links into bar groove. S Pull guide bar forward until chain is snug in the groove of the bar. Ensure all drive links are in the bar groove. S Hold guide bar against the saw frame making sure the adjusting pin is aligned with the hole in the bar. Remember this pin moves the bar forward and backward as screw is turned. Install the chain brake. S Replace the chain brake nuts and tighten finger tight. Once the chain is tensioned you will need to tighten chain brake nuts. CHAIN TENSION (Including units with chain already installed) NOTE: When adjusting chain tension, make sure the chain brake nuts are finger tight only. Attempting to tension the chain when the chain brake nuts are tight can cause damage. Checking the tension: Use the screwdriver end of the chain adjustment tool (bar tool) to move the chain around the bar. If the chain does not rotate, it is too tight. If too loose, the chain will sag below the bar. Chain Brake Nuts Chain Adjustment Tool (Bar Tool) Adjusting the tension: Chain tension is very important. Chain stretches during use. This is especially true during the first few times you use your saw. Always check chain tension each time you use and refuel your saw. You can adjust the chain tension by loosening the chain brake nuts and turning the adjusting screw 1/4 of a turn while lifting up on the bar. S If chain is too tight, turn adjusting screw 1/4 turn counterclockwise. S If chain is too loose, turn adjusting screw 1/4 turn clockwise. Adjusting Screw S Lift up the tip of the bar and tighten the chain brake nuts securely with the bar tool. S Recheck chain tension. Tension is correct when chain does not sag below the bar but still can be moved around the bar. WARNING: If the chain is operated with a loose chain, the chain could jump off the guide bar and result in serious injury. 7