A wood chipper inspection is the check an operator makes before the first branch goes into the infeed: is the machine roadworthy, are the fluids up and the hoses dry, are the knives sharp and bolted tight, are the guards on, and above all does the feed control bar stop the rollers every time and does every emergency stop shut it down. This checklist records the unit and its engine hours, scores each item, and ends with a plain decision on whether the chipper runs today. Fill it in here and download a PDF without an account, or speak while you walk, and the document writes itself.
Test the stops before anything else runs
The feed control bar around the infeed hopper is the one control an operator can reach if a glove or sleeve is caught. It should stop the feed rollers, or reverse them where the machine is designed to, from wherever it is pushed or pulled. Each emergency stop should shut the feed down, and the engine where the maker designs it to. This form scores each of those as a separate safety check, run with the engine going and nothing in the chute, because a chipper with a sticky or bypassed bar should not run at all.
Knives, anvil and the locked-out checks
Knives and the anvil are only looked at with the engine off, the key out and the disc or drum stopped and pinned the way the manual describes. Dull or chipped knives make the machine pull harder and throw more; loose knife bolts can let a knife go. The belt, belt guard and hood latch are checked at the same time, and the grease points done.
On the road and on the site
For a towed chipper, a gated section covers the hitch and coupler, crossed safety chains, the breakaway cable, the trailer plug and every light, tire condition and lug nuts, and the jack stand. A tracked or truck-mounted machine skips it. The work-zone section then checks where the chipper is parked, cones or traffic control, the discharge chute aimed away from people, cars and buildings, and that a second worker is close enough to hit a stop.
One decision at the end
The form ends with In service or Out of service. Tagging the chipper out is a safety finding at the top of the report, with a tag number, and every fault found becomes a corrective action with a person and a date.
Common questions
How often should a wood chipper be inspected?
Before each day's use, and again after anything strikes the knives, a jam is cleared or a repair is made. Fuller inspections and services follow the hours in the maker's manual, which is why this form records engine hours.
How do you test a chipper feed control bar?
With the engine running, nothing in the infeed and everyone clear, set the rollers turning and then push and pull the bar from each side and position the maker's manual describes. The rollers should stop, or reverse where designed to, every time. If they do not, the chipper is tagged out.
Can I check the knives with the engine idling?
No. Knives, anvil and the drum or disc are only inspected with the engine off, the key removed and the rotor fully stopped and locked as the maker directs. Rotors coast for a long time after shutdown.
Does this checklist work for drum and disc chippers?
Yes. Pick the style at the top. The checks are written for both, and anything that does not apply to your machine can be marked N/A without lowering the score.
Does completing this make the chipper compliant?
It records what was checked, what was found, the engine hours and who decided whether the chipper could run. Whether a machine meets ANSI Z133, the maker's requirements or any other rule is judged against that document.