Jointer

JOINTER

.B. Safe Operational Procedures:

1. Keep the guard covering the cutterhead in place and free to function at all times.

2. Remember the jointer's main function is to straighten the edge of lumber and it should not be used as a surfacer planer.

3. Keep the knives sharp and properly grounded / adjusted. Dull knives are more likely to cause a kickback.

4. The depth of cut is adjusted with the front table adjusting hand wheel. The machine should never be set to cut more than 1/8" for softwood or 1/16" for hardwoods.

5. The fence should be moved back and forth to different positions periodically so as not to cut at the same position on the cutterhead.

6. Check grain of lumber to be certain the knives are cutting with the grain and not against it.

7. Have a push stick handy so it can be used on narrow pieces.

8. The cutterhead turns down towards the front infeed table; therefore, it will have a tendency to throw the work back towards the operator.

9. Do not attempt to joint stock less than 1/2" thick or pieces shorter than 12" in length.

10. Turn off the power and allow machine to stop before leaving the area.

A. General Safety Practices

1. Wear eye protection at all times

2. Do not operate the jointer without permission from your instructor

3. Use only sharp knives

4. Keep floor and area around jointer clean and free of scraps and rubbish.

5. Do not make any adjustments with machine running.

6. Double check all adjustments before turning on power.

7. Do not attempt to joint or edge material containing nails, paint, severe knots or other defects.

8. Always keep guard in place and working freely.

9. Do not reach over or around cutterhead while machine is running.

10. Talking to others while operating or diverting attention to something other than the jointer can cause accidents.

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Bank of Questions: (Jointer)

Missing words

1. Stock shorter than ____ inches should not be run on the jointer.

2. The depth of cut is adjusted by moving the ________table up or down.

3. Stock should be at least ________ thick to be run on the jointer.

4. A _____ _____ should be used for narrow stock..

5. The stock should be fed into the jointer so the machine is cutting ________ the grain and not _________ the grain.

6. The jointer should never be operated with the _________ removed.

Short answer Questions

1. According to recommended speedof moving stock (16’ min.) over the jointer, how long should it take to edge a 4 foot board?

2. Why should we move the fence back and forth over the cutterhead (bi-monthly)?

3. When should you use a push stick?

4. What is the jointer’s main function?

Please state why each of the following represent a safety hazard.

1. Trying to joint end grain

2. Standing directly inline with the infeed table

3. Making a beveled edge

4. A malfunctioning guard