Wear full protective gear, inspect the saw, start on firm ground with the brake engaged, cut with two hands below shoulder height, and avoid the bar tip.
A chainsaw running at full throttle can kick the bar back toward your face in a fraction of a second if the tip touches the wood wrong. That single hazard—along with the weight, the noise, and the spinning chain moving at highway speed—makes safety procedures non-negotiable. Whether you run a gas model or a battery-powered saw, the steps are the same: check the saw, suit up, start on the ground, and keep both hands on it at all times. What follows is the complete routine, backed by OSHA standards and manufacturer guidance, so you get the job done without an emergency room visit.
What Gear Do You Need Before Starting?
Full personal protective equipment (PPE) is mandatory before the chain starts spinning. At minimum that means a hard hat, safety goggles, ear protection, non-slip gloves, steel-toe boots, and chainsaw chaps or pants. The leg protection matters more than most people realize—
The table below covers each item, what it protects, and why the spec matters.
| Gear Item | What It Protects | Key Note |
|---|---|---|
| Hard hat with face screen | Head and face from falling branches and debris | Should include mesh or clear screen for impact protection |
| Safety goggles | Eyes from sawdust, chips, and fuel splash | Must fit comfortably under the hard hat |
| Ear muffs or plugs | Hearing from sustained engine noise | Most gas saws run above 100 dB; damage occurs fast |
| Chainsaw chaps or pants | Legs from accidental chain contact | |
| Non-slip gloves | Hands from vibration, cuts, and fuel | Leather or synthetic palm with good grip |
| Steel-toe boots | Feet from falling weight and saw contact | Oil-resistant soles help on sloped ground |
| Close-fitting clothing | Entanglement prevention | No loose cuffs, dangling drawstrings, or jewelry |
How to Inspect and Start a Chainsaw Safely
A pre-operation check takes about two minutes and catches the problems that cause kickback, chain derailment, or loss of control during a cut. Before you add fuel or charge the battery, run through this sequence.
Check the chain tension first. A loose chain can derail and snap back toward you. The chain should sit snug against the bar with no sag underneath, and you should be able to pull it around the bar by hand with light resistance. Next, confirm the chain brake moves freely and locks. Squeeze the front hand guard forward until it clicks; the chain should not move when you give the starter cord a test pull. If it does, the brake is not engaging and the saw needs repair before use.
When you are ready to start, move the saw to bare, level ground away from fuel cans or dry leaves. Engage the chain brake. For a gas saw with a C-shaped rear handle, place the toe of your right foot through the handle to hold the saw steady, grip the front handle with your left hand and the rear handle with your right, then pull the starter cord briskly. Drop-starting—holding the saw in the air while starting—is prohibited by OSHA standard 1910.266(e)(2)(iv), and for good reason: you lose control of the spinning chain if the saw twists.
Avoid letting leftover gas sit in the saw for longer than six weeks. Stale fuel causes carburetor problems that make starting unreliable and can damage the engine.
The Right Way to Make a Cut
Good cutting technique is what keeps the chain where it belongs and away from your body. Always cut at waist level or below, never above shoulder height. Use full throttle from the start and maintain it through the whole cut while applying steady pressure. Let the saw do the work—forcing it usually means the chain is dull.
Wrap your thumbs and fingers completely around both handles. Husqvarna’s safety guidance emphasizes keeping the left thumb under the front handle, because that grip position gives you the best resistance against a sudden kickback. Never cut with one hand, and never hold the saw by the rear handle only. If a cut requires your other hand to stabilize the log, stop the saw and reposition.
Be alert for logs or branches that pinch the chain as the cut closes. When the saw binds, stop the engine and drive a plastic or wooden wedge into the kerf to open it—do not twist the bar to free it. Twisting can bend the bar or snap the chain.
Why Is Kickback So Dangerous?
Kickback happens when the upper quadrant of the bar tip contacts wood, causing the chain to snag and throw the bar upward and backward toward the operator’s face. The reaction happens in a fraction of a second, far faster than anyone can react. It is the leading cause of chainsaw injuries. The fix is straightforward: never cut with the tip of the bar. Make cuts with the middle section of the guide bar between the kickback zone and the rear of the saw. Low-kickback chains help reduce the risk, but they do not eliminate it. Technique is the real defense.
Common Mistakes That Lead to Injury
Even experienced operators make errors when fatigue sets in or when they take a shortcut. The table below shows the most common mistakes and the safer alternative for each.
| Mistake | Why It Is Dangerous | Correct Practice |
|---|---|---|
| Cutting with the bar tip | Instant kickback toward the head and chest | Use the middle of the guide bar |
| Drop-starting the saw | Loses control of the chain if the saw twists | Start on firm ground with brake engaged |
| One-handed cutting | No way to resist kickback force | Both hands on the handles at all times |
| Cutting above shoulder height | Loss of balance and poor control of the bar | Keep cuts at waist level or below |
| Working from a ladder or scaffold | Unstable stance increases fall and kickback risk | Use a pole saw or call a professional |
| Using a dull chain | Needs extra force, stalls, and catches more easily | File or replace the chain when it stops cutting cleanly |
| Carrying the saw with the brake off | Chain can spin and contact the operator or a bystander | Engage the brake when carrying more than 50 feet |
Fatigue is a silent multiplier for every mistake on this list. Stop before you feel exhausted—midsession water and a ten-minute break keep your reaction time sharp. If you find yourself struggling with a heavy saw through a long job, switching to a lighter model can make a real difference. We have tested and ranked the best lightweight chainsaws for home use if you want to reduce arm fatigue without sacrificing cutting power.
Post-Cut Safety and Storage
When the cut is finished, the saw is still dangerous until the engine stops or the brake locks. Turn off the saw or engage the chain brake before you set it down, refuel, adjust chain tension, or walk to the next work area. OSHA requires the chain brake to be engaged or the saw shut down when carrying it more than 50 feet (15.2 meters). When refueling, move at least 10 feet away from any ignition source—including the saw’s own hot engine—and use only an approved fuel container.
For long-term storage, drain the fuel tank and run the saw dry, or add fuel stabilizer if you plan to use it again within a few weeks. Store the saw with the chain brake engaged and the guide bar covered. Keep it out of reach of children and away from moisture.
Safety Checklist for Every Operator
Run through this short list before you pull the starter cord, and again when you put the saw away.
- Full PPE on and properly fitted—no shortcuts.
- Chain tension checked and adjusted if needed.
- Chain brake test passed—locks and releases correctly.
- Bar and chain are free of damage, chain is sharp.
- Saw is on bare, level ground; no flammable material nearby.
- Both hands on the handles, thumbs wrapped, left thumb under the front handle.
- Cut zone clear of bystanders—minimum 10 feet, 150 feet for felling.
- Brake engaged or engine off before carrying, refueling, or adjusting.
References & Sources
- OSHA. Standard 1910.266 — Logging Operations. Establishes legal safety requirements for chainsaw operation, including drop-start prohibition and brake engagement rules.
- STIHL. How to Use a Chainsaw Safely. Manufacturer guidance on PPE, pre-operation checks, and safe starting procedure.
- Husqvarna. Chainsaw Safety Basics. Covers thumb-under grip, safety distances, and kickback avoidance.
- Missouri Extension. Operating a Chain Saw Safely (G1959). Detailed cutting techniques and post-cut safety steps.
- Arkansas Cooperative Extension. Chain Saw Safety (FSA-1009). Comprehensive safety standards including felling distances and injury response.