Radial Arm Saw
A. Safe Operational Procedures:
Changing the Saw Blade
a. Shut off main power switch or disconnect from wall plug.
b. Select the proper type blade for job.
c. Remove the saw guard, the arbor nut and arbor collars. Remember the arbor has left-hand threads. Remove the blade
d. Before replacing new blade check the inside collar. It should be replaced on the arbor with the recessed side out.
e. place the saw blade on the arbor so the teeth on the bottom of the blade or nearest the table point back or towards the elevating column. Generally, blades are marked "this side out."
f. Place the outside collar on the arbor with the recessed face against the saw blade.
g. Tighten the arbor nut using the same wrenches used in removing. 8. Before replacing the guard check the squareness of the saw blade and table by resting a framing square against the face of the blade and table top. If out of adjustment, consult the operator's manual for your saw.
h. Before replacing the guard check the squareness of the saw blade and table by resting a framing square against the face of the blade and table top. If out of adjustment, consult the operator's manual for your saw.
i. Assemble the guard kickback and elbow.
j. Replace the guard and lock in place.
Radial Arm Saw - Crosscutting
a. Select a crosscut or combination blade.
a. Have all guards in proper place.
c. Push the saw to the rear of the table. Tighten the rip lock to keep the saw from running forwards when it is turned on.
d. Adjust height of blade by turning the elevating handle until the teeth just touch the table top.
e. Adjust saw at right angle to fence and perpendicular to the table.
f. Place material to be cut on table with the straightest edge tight against the fence and with the mark in line with the saw blade.
g. Be sure the saw blade is not engaging the material. Start the saw and release the rip lock.
h Hold wood with left hand and saw with right hand, standing slightly to the left of the saw.
i. Pull saw toward operator feeding slow enough that the saw does not grab.
j. Return the saw to the rear of the table. Lock in place until ready to make another cut.
Radial Arm Saw - Ripping
a. Select ripping or combination blade.
b. Turn saw parallel to fence by releasing the swivel lock and turning the saw yoke. Lock in position with rip lock at proper width of cut.
c. Adjust safety guard to approximately 1/8" above the board and the anti-kickback device at 60 degrees when touching material to be ripped.
d. Adjust height of saw with elevating handle so the teeth just touch table.
e. Feed material from opposite end of anti-kick back device or into the bottom of the saw blade which is turning toward you.
f. Use a push stick when near blade to keep hands away from blade.
g. Assist help with long material or use a roller support.
Radial Arm Saw - Miter Cuts
a. Select crosscut or combination blade.
b. Set the motor yoke and the lock in the same position as for crosscutting. Release the arm clamp and the miter latch.
c. Swing the radial arm to the desired angle as indicated on the miter scale. Most saws have a notch or hole at 30, 45, 60 degrees, etc. so that the miter latch can be re-engaged at these angles. If there is no such notch, the arm can be clamped at any angle.
d. Re-engage the miter latch and tighten the arm clamp.
e. Make the cut in the same manner as described for crosscutting.
Radial Arm Saw - Bevel Cuts
a. Select a cross-cut or combination blade.
b. Lock the redial arm and the motor yoke in the same position as for crosscutting.
c. Raise the saw until the motor can be tilted to the desired bevel. Release the bevel clamp and the locating pin.
d. Tilt the saw end of the motor downward to the desired bevel as indicated on the bevel scale.
e. Re-engage the locating pin and tighten the bevel clamp.
f. Make the cut in the same manner as described for crosscutting.
g. Bevel rips can be made in a manner except the saw yoke is turned and locked in place as in ripping. Follow same procedures as discussed straight ripping.
h. A bevel-miter (compound angle cut) is a combination bevel and miter cut.
B. General safety Practices:
1. Wear eye protection at all times.
2. Do not operate saw without permission from the instructor.
3. Be sure blade is sharp, sound and of the proper type.
4. All adjustments should be tight and all guards in place.
5. Never leave tools, scraps or other materials on saw table. Keep area around saw clear.
6. Do not leave machine while it is running.
7. Be sure material is free of knots, nail points or other foreign matter.
9. Do not adjust machine while it is running.
10. Tighten rip lock before staring the saw.
11. Pull saw slowly through material. Return saw to rear of table after sawing before removing stock.
12. When ripping, make sure that the blade is rotating upward toward you. Feed the stock from the end opposite the anti-kickback device. Always use a push stick when ripping.
13. Do not stop blade by pushing stock against the blade.
14. Do not saw material freehand without a guide.
.Bank of Questions: (Radial Arm Saw)
Please state why each of the following represent a safety hazard.