How do you adjust chain tension? I have the 16" Remington electric chain saw, and the chain will not stay tight; it slips off the rear sprocket as soon as I try to use it. I don't feel everything is properly aligned along the chain guide. I don't see how the adjustment screw is supposed to do anything, because it is not clear what the little tab on the back end of it is supposed to engage with.

Here is a link to instructions for EL-8 series saws ... http://www.desatech.com/pdf/115499-01_EL8_Series_Chain_Saw_Tension_Adjustment.pdf. For series LNT-2, LNT-3,EL-1, and EL-7 according to the manufacturer... "WARNING: The cutting edges on the chain are sharp. Protective gloves should be used when touching the chain. Unplug the chain saw from the power supply. Allow chain to cool. Loosen the guide bar nuts until they are finger tight. Ensure the adjusting block is in the adjustment hole in the guide bar. Turn the chain tensioning screw clockwise to increase tension. Turn the chain tensioning screw counterclockwise to decrease tension. Check for proper chain adjustment by pulling down on the chain at the bottom center of the guide bar. You should see no more than a ⅛ inch gap between the chain cutting links and the guide bar. The guide (or drive) links should not come out of the guide bar grooves. The chain should rotate freely around the guide bar. If it does not, chain tension should be decreased. When the chain is properly adjusted, tighten the guide bar nuts securely." On the M series if your chain keeps slipping off your sprocket... The Sprocket cover tab (located on the round part of the sprocket cover) isn’t inserted into the saw body tab slot. I hope this helps you!