Table Saw

SCIE SUR TABLE / BANC DE SCIE

A. PART IDENTIFICATION:

B. PROCÉDURES SÉCURITAIRE:

1.Coupe Transversale

a. Sélectionné une lame pour coupe transversale ou combinée. Toujours utiliser des lames bien affûtées. Assurez-vous que la lame pointe vers l'avant ou sur le côté de l'opérateur.

b. Régler la hauteur de la lame de sorte que les dents dépassent la surface de la pièce par 1/4 de pouce.

c. Assurez vous que les gardent sont en place en tout temps. Si la scie dispose d'un dispositif qui prévient la pièce de toucher le derrière de la lame (splitter) assurez vous qu'il soit en place.

d. Utilisez toujours une jauge à onglet lorsque vous faites des coupes transversale.

e. Ne jamais utiliser le guide et la jauge à onglet en même temps. Si vous faites des coupes transversale, utilisez la jauge à onglet seulement.

f. Assurez vous que votre pièce soit bien en contact avec la jauge à onglet.

g. Ne jamais forcer votre pièce dans la lame.

2. Coupe avec le grain:

a. Sélectionné une lame pour coupe linéaire ou combinée.

b. Ne jamais faire de coupe à main lever. Toujours utiliser le guide.

c. Mesurer la distance de coupe entre le guide et la lame. Vérifier la distance devant et derrière la lame.

d. Utiliser un poussoir si votre pièce est étroite.

e. Assurez vous que le garde soit toujours en place.

f. Demandez de l'aide lorsque vous couper des matériaux trop long. Si vous êtes seul, utilisez un support à rouleau.

g. Ajustez la lame à la bonne hauteur, soit 1/4" au dessus de votre matériel.

h. Ne pas forcer le matériel dans la lame. Si la lame devient chaude, vérifier celle-ci afin de vous assurez qu'elle est bien affûté..

3. Coupe de Dado:

a. Utilisez une lame multiple utilisée spécifiquement pour les dado. Si cette lame n'est pas disponible, vous pouvez utiliser une lame pour coupe combiner et bouger votre guide par 1/8" après chaque coupe.

b. Monter la lame à la hauteur désiré.

c. Dans certaine occasion, le garde doit être soulever. Si cela ce produit, assurez vous de la remettre en place aussitôt la coupe terminé.

4. Coupe en angle (coupe avec le grain):

a. Sélectionné une lame pour coupe linéaire ou combinée.

b. Ajuster la scie à l'angle désiré

c. Ajustez la lame à la bonne hauteur, soit 1/4" au dessus de votre matériel.

d. Ajustez le guide à la largeur désiré.

5. Coupe en angle (Coupe transversale):

a. Sélectionné une lame pour coupe transversale ou combinée

b. Vous utilisez la jauge à onglet pour faire vos coupes.

C. GENERAL SAFETY PRACTICES:

1. Wear eye protection and proper clothing.

2. obtain permission from instructor to operate bench saw.

3. Use only sharp blades of the proper type for the job.

4. Be sure blade is correctly installed in saw. make certain power is off and properly disconnected before removing blade insert. To losen arbor nut,turn wrench toward normal direction of travel holding blade with waste piece of wood. Do not overtighten arbor nut when replacing blade.

5. Do not stand in line with the blade while sawing or aloowing fingers to hands to be in line of cut.

6. Be sure that all adjustemnts are tight and the table part of the saw is free to tools, chips, small pieces of wood or other materials.

7. Do not talk to anyone while using the saw. The operator should be the only person inside the safety zone.

8. Be sure the floor is clean and free from scraps and rubbish. Do not work on wet or slippery floors. Non-skid materials are recommended.

9. Saw only material that has a straight edge.

10. Study the adhjustments and make sure you understand them before starting to work.

11. Use saw guard where possible.

12. Use a "push" stick for ripping narrow pieces.

13. Hold material against the ripping fence when ripping, and miter gage when crosscutting. Never saw freehand.

14. Never use the ripping fence for a gage when crosscutting short pieces.

15. Do not place the hands over or in front of the blade. Never reach over the blade.

16. Turn off the saw before removing short pieces from near the blade.

17. Be sure the power is "locked" off before adjusting or working on the saw.

Avoiding Kickback

Kickback is caused when the blade catches the workpiece and violently throws it back to the rear of the saw, towards the operator. It can be thrown very hard and can injure the operator.

Blade must be sharp and clean. Novices often do not recognize the importance of using a clean and sharp blade. Pitch buildup on a blade greatly increases friction and decreases the quality of the cut, causing burning. Pitch also increases the probability of kickback.

Saw must be aligned. The blade must be adjusted so that it is parallel with the miter grooves and the rip fence. If the blade is out of parallel, it is possible for the workpiece to be pinched between the blade and the rip fence, which will cause violent kickback.

Use the blade guardThe blade guard on typical American market saws incorporates a spreader, which helps prevent the cut from closing on the back of the saw blade. Natural tension can exist in wood that causes the cut to close. Some blade guards have anti-kickback devices that allow only forward travel past the blade.

Push the workpiece past the blade. Do not release a workpiece until it is past the blade and removed from the saw. Turn the saw off before removing small cut off pieces.

Always maintain control. Do not execute a cut where you do not have complete control of the situation. Make sure there are no obstructions. Do not cut a workpiece that is too large to handle.

Do not use the rip fence as a guide during crosscuts. If you need cuts, use a stop block in front of the blade so the workpiece is not in contact with the rip fence during the cut. It is easy for the workpiece to twist out of perpendicular at the end of the cut and thus get caught by the blade and thrown.

Be careful about flaws in the wood. Cutting through a loose knot can be dangerous. Cutting a warped or twisted board along the rip fence is dangerous because it can get pinched between the fence and blade.

Here is a video about a Canadian Invention. On this video you will see the creator of the device being challenged into testing is invention in real life. Amazing, this will hopefully become a standard on all table saws in the near future.

Bank of Questions: (Table Saw)

Missing words

1. A ______________ is used to support long pieces of material while sawing.

2. The _____________ is used for a guide when ripping.

3. The __________ ___________ is used as a guide when crosscutting.

4. A ___________or _____________ blade may be used for crosscutting.

5. A ____________ ____________ is used when ripping narrow pieces.

6. When making a bevel cut the saw is adjusted by tilting the_______________ .

7. Saw only material that has a _______________edge against the fence.

8. The saw should be _____________ before removing short pieces from the blade.

9. A ____________ blade can be used when plowing or dadoing.

10. The blade should extend above the material the depth of one ____________ .

Short answer Questions

1. What is a kickback?

2. What should you do in order to prevent kickback?

3. Why should you keep pushing your piece until it passes the blade completely?

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

1. Using the fence and the mitre gage while crosscutting

2. Having the blade set at it’s maximum height

3. Cutting stock without a true edge (straight edge)