How to Check the Automatic Oiler on a Chain Saw

Shut off the chain saw, moving the ignition button into the “Off” position. Unlock the chain brake, pulling backward on the front hand guard.

Locate the automatic oiler control screw. On most saws, this will be underneath the engine. On other saws, it may be on either side of the engine, but it will usually have an oil-related symbol next to it. However, not all chain saws have automatic oiler control screws.

Turn the screw toward the “+” symbol to increase the output of oil. Turn the screw toward the “−“ to decrease the supply of oil. Fill the oil tank up with a sufficient amount of bar oil, usually three-quarters full.

Start the chain saw and depress the throttle fully. Hold the tip of the chain saw close to a piece of cut wood. Let go of the throttle and inspect the wood for small drops of oil.

Unscrew the bar nuts with the wrench if no oil drops splatter against the wood. Take the bar cover, bar and chain off the chain saw. Blow compressed air into the oiler nozzle, located just to the right of the bar posts. Repeat the test for oil.