McCulloch chainsaws generally have a smaller engine and bar than other chainsaws. Most McCulloch chainsaws use a two-stroke gas engine, which will require a pre-mixed fuel, containing gas and two-stroke air-cooled engine oil. This mixture must be set at a ratio of 40-to-1 for your engine to operate properly. As with all chainsaws, great care must be taken to avoid serious injury or death when starting and operating your McCulloch.
- Skill level:
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Things you need
- Regular unleaded gasoline
- McCulloch two-cycle mix oil
- Approved fuel container
- Bar oil
- Leather work gloves
- Safety glasses
- Work boots
Mix the regular unleaded gasoline and the McCulloch two-stroke engine oil into the approved fuel container. Mix 94.6ml of oil for every one gallon of gasoline. Fill the McCulloch with the mixed fuel. Pour the bar oil into the oil tank for bar lubrication
Put on all safety equipment before handling the saw. Pull down on the chain to check the tension on the bar. If the chain is loose or can be easily pulled off, loosen the bar nuts with the wrench until they are finger tight. Turn the bar tensioning screw, located on clockwise one full rotation. Tighten the bar nuts and check the chain's tension. Repeat that process until the chain is properly tightened.
Move the switch into the "I" position. Pull out the choke lever until it latches into place. Press and release the primer bulb until it fills with fuel. Squeeze the throttle trigger and the throttle latch. Release the throttle and then the latch to activate the throttle advance.
Set the McCulloch onto a firm and level surface. Place one hand on the front handle to stabilise the saw. Grasp the starter rope with the other hand. Place your foot into the rear handle and press firmly. Pull on the starter rope until the engine sounds like it's going to start running. Push in the choke lever and pull on the starter rope again until the engine starts.
Let the saw idle for several minutes to warm up. Grab the front handle with your left hand, wrapping your thumb and forefinger around the handle. Grab the rear trigger handle with your right, wrapping your thumb and forefinger around the handle. Squeeze the trigger with your right forefinger to one-third of maximum speed. Press the safety brake with the front of your left hand to activate the chain brake. The chain should stop immediately; if it doesn't, turn off the saw and repair your safety brake.
Squeeze the trigger fully whenever you make a cut. Place the underside of the bar's tip onto the wood and let the chain pull the saw into the wood. Cut with the underside of the bar as much as possible. Don't cut without fully throttling the trigger. Watch the wood at all times for binding pressures that may be released after its cut. Keep your eye on the tip of the bar at all times.
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