Louisiana Administrative Code › Title 28 - EDUCATION › Part CXXXIII - Bulletin 1674 - Safety Manual for Career and Technical Education Programs › Chapter 25 - Mechanical Hazards Worksheet › Subchapter B - Hazard Identification › Section CXXXIII-2519 - Woodworking Machinery

Current through Register Vol. 50, No. 6, June 20, 2024
A. General
				  Machine Construction
Circle the Appropriate Answer
1. Is each machine constructed and installed so it
								is free from sensible vibration when the largest tool is mounted and run at
								full speed?
Y N N/A
2. Are arbors and mandrels constructed to have
								firm and secure bearing and be free from play?
Y N N/A
3. Are saw frames on tables constructed with lugs
								cast on the frame or with equivalent means to limit the size of the saw blade
								that can be mounted?
Note: This is done to avoid overspeed
								caused by mounting a saw larger than intended
.
Y N N/A
4. Are circular saw fences constructed so they can
								be firmly secured to the table without changing their alignment with the saw?
Y N N/A
5. Are circular saw gauges constructed so they
								slide in grooves or tracts that are securely machined, to ensure exact
								alignment with the saw for all positions on the guide?
Y N N/A
6. Are hinged table saws constructed so that the
								table can be firmly secured in any position and in true alignment with the saw?
Y N N/A
7. Are all belts, pulleys, gears, shafts, and
								moving parts guarded?
Y N N/A
8. Is each woodworking machine provided with a
								disconnect switch that can be locked in the off position?
Note: The construction standard 1926-304
								permits a disconnect switch that can be tagged in the off position.
Y N N/A
9. Are the frames of all exposed
								non-current-carrying metal parts grounded?
Y N N/A
10. If the possibility exists of contacting part
								of a circular saw either beneath or behind the table, is that part covered with
								either an exhaust hood or guard?
Y N N/A
11. Are revolving double arbor saws fully guarded?
Y N N/A
12. Is the placement and mounting of saws, cutter
								heads, or tool collars on machine arbors accomplished when the tool has been
								accurately machined to size and shape to fit the arbor?
Y N N/A
13. Are combs (featherboards) or suitable higs
								provided at the shop or lab for use when a standard guard cannot be used, as in
								dadoing, grooving, joining, moulding, and rabbetting?
Y N N/A
14. Is the operating speed etched or otherwise
								permanently marked on all circular saws over 20 inches in diameter and
								operating at over 10,000 peripheral feet per minute?
Y N N/A
15. Do woodworking tools and machinery meet the
								American National Standards Institute (ANSI) codes for safety?
Note: A label on the equipment or
								manufacturer's literature might indicate that it meets ANSI's standards. If in
								doubt, the manufacturer of the equipment should be contacted.
Y N N/A
B.
				  Machine Controls and Equipment
Circle the Appropriate Answer
1. Are mechanical or electrical power controls
								provided on each machine to make it possible for the operator to cut off the
								power without leaving his or her operating position?
Y N N/A
2. On machines driven by belts and shaftings, is a
								locking type belt shifter or equivalent positive device used?
Y N N/A
3. Is each operating treadle protected against
								unexpected tripping?
Y N N/A
4. Are automatic feeding devices installed on
								machines whenever the nature of the work permits?
Y N N/A
5. Do feeder attachments have the feed rolls or
								other moving parts covered or guarded to protect the operator from hazardous
								points?
Y N N/A
C.
				  Inspection and Maintenance of Woodworking Machinery
Circle the Appropriate Answer
1. Are dull, badly set, improperly filed, or
								improperly tensioned saws immediately removed from service before they cause
								the material to stick, jam, or kickback when it is fed to the saw at normal
								speed?
Y N N/A
2. Are all knives and cutting heads of woodworking
								machines kept sharp, properly adjusted, and firmly secured?
Y N N/A
3. Are all bearings well lubricated and kept free
								from lost motion?
Y N N/A
4. Are arbors of circular saws free from play?
Y N N/A
5. Is sharpening or tensioning of saw blades or
								cutters done only by people with demonstrated skill in this kind of work?
Y N N/A
6. Is cleanliness maintained around woodworking
								machinery so guards function properly and fire hazards are prevented in switch
								enclosures, bearings, and motors?
Y N N/A
7. Are all cracked saws immediately removed from
								service?
Note: Dispose of cracked saws in a manner
								that will prevent injury to anyone handling the discarded saws.
Y N N/A
8. Is inserting wedges between the saw disk and
								the collar to form what is commonly known as a wobble saw prohibited?
Y N N/A
9. Are push sticks or blocks provided at
								workplaces in several sizes and types suitable for the work to be done?
Y N N/A
D.
				  Hand-Fed Ripsaws
Circle the Appropriate Answer
1. Is each circular hand-fed ripsaw guarded by a
								hood that completely encloses the portions of the saw that are above the table
								and above the material being cut?
Y N N/A
2. Is the hood and mounting arranged so that the
								hood will automatically adjust itself to the thickness of the material and
								remain in contact with the material being cut?
Note: The hood should not offer
								considerable resistance to insertion of the material.
Y N N/A
3. Is each hand-fed circular ripsaw furnished with
								a spreader to prevent material from squeezing the saw or being thrown back on
								the operator?
Y N N/A
4. Is each hand-fed circular ripsaw provided with
								non-kickback fingers or dogs located to oppose the thrust or tendency of the
								saw to pick up the material or throw it back toward the operator?
Y N N/A
E.
				  Hand-Fed Crosscut Table Saws
Circle the Appropriate Answer
1. Is each hand-fed crosscut table saw guarded by
								a hood that completely encloses portions of the saw that are above the table
								and above the material being cut?
Y N N/A
2. Is the hood and mounting arranged so that the
								hood will automatically adjust itself to the thickness of and remain in contact
								with the material being cut?
Note: The hood should not offer
								considerable resistance to insertion of the material.
Y N N/A
F.
				  Circular Resaws
Circle the Appropriate Answer
1. Is each circular resaw guarded by a hood or
								shield of metal above the saw?
Y N N/A
2. Does each circular resaw have a spreader
								fastened securely behind the saw?
Y N N/A
G.
				  Self-Feed Circular Saws
Circle the Appropriate Answer
1. Are feed rolls and saws protected by a hood or
								guard to prevent the hands of the operator from coming into contact with the
								in-running rolls at any point?
Note: The guard must be constructed of
								heavy material (preferable metal), and the bottom of the guard must come down
								to within 3/8 inch of the plane formed by the bottom or working surfaces of the
								feed rolls. This distance may be increased to 3/4 inch, provided the lead edge
								of the hood is extended to at least 5-1/2 inches in front of the nip point
								between the front roll and the work.
Y N N/A
2. Is each self-feed circular ripsaw provided with
								sectional non-kickback fingers for the full width of the feed rolls?
Y N N/A
H.
				  Swing and Sliding Cutoff Saws
Circle the Appropriate Answer
1. Are swing and sliding cutoff saws provided with
								a hood that completely encloses the upper half of the saw, the arbor end, and
								the point of operation of all positions of the saw?
Note: The hood must be constructed to
								protect the operator from flying splinters and broken saw teeth. It must
								automatically cover the lower portion of the blade so that when the saw is
								returned to the back of the table, the hood will rise on top of the fence, and
								when the saw is moved forward, the hood will drop on top of and remain in
								contact with the table or material being cut.
Y N N/A
2. Are swing and sliding cutoff saws equipped with
								an effective device to return the saw automatically to the back of the table
								when released at any point of its travel?
Y N N/A
3. Are swing and sliding cutoff saws equipped with
								limit chains or other equally effective devices to prevent the saw from
								swinging beyond the front or back edges of the table, or beyond a forward
								position where the gullets of the lowest saw teeth rise above the table top?
Y N N/A
4. Are inverted swing cutoff saws provided with a
								hood that covers the part of the saw that protrudes above the table or above
								the material being cut?
Note: The hood must automatically adjust
								itself to the thickness of the material and remain in contact with the material
								being cut.
Y N N/A
I.
				  Radial Saws
Circle the Appropriate Answer
1. Does the upper hood completely enclose the
								upper portion of the blade down to the point that will include the end of the
								saw arbor?
Y N N/A
2. Are the sides of the lower exposed portion of
								the blade guarded to the full diameter of the blade by a device that
								automatically adjusts itself to the thickness of the stock? Does this device
								remain in contact with the stock being cut to give maximum protection for the
								operation being performed?
Y N N/A
3. Are radial saws used for ripping provided with
								non-kickback fingers or dogs located on both sides of the saw to oppose the
								thrust or tendency of the saw to throw material back toward the operator?
Y N N/A
4. Is an adjustable stop provided that prevents
								the forward travel of the blade beyond the position necessary to complete the
								cut in repetitive operations?
Y N N/A
5. Is the installation designed so that the front
								end of the unit is slightly higher than the rear? (This design causes the
								cutting head to return gently to the starting position when released by the
								operator.)
Note: The cutting head should be fitted
								with an automatic return device.
Y N N/A
6. Is the direction of saw rotation conspicuously
								marked on the hood?
Y N N/A
7. Is a permanent label (at least 1/2 inch by 3/4
								inch) affixed to the rear of the guard at approximately the level of the arbor
								that reads as follows?
Danger: Do not rip or plow from this end.
Y N N/A
J.
				  Bandsaws and Band Resaws
Circle the Appropriate Answer
1. Are all portions of the band saws and band
								resaws enclosed or guarded, except for the working portion of the blade between
								the bottom of the guide rolls and the table?
Y N N/A
2. Does a self-adjusting guard raise and lower the
								guide?
Y N N/A
3. Is each bandsaw machine provided with a tension
								control device to indicate the proper tension for the standard saws used on the
								machine?
Y N N/A
4. Are feed rolls of band resaws protected with a
								suitable guard to prevent the hands of the operator from coming in contact with
								the in-going rolls at any point?
Y N N/A
K.
				  Jointers
Circle the Appropriate Answer
1. Is each hand-fed planer or jointer with a
								horizontal head equipped with a cylindrical cutting head?
Note: The knife projection of the
								cylindrical cutting head cannot exceed 1/8 inch beyond the cylindrical body of
								the head.
Y N N/A
2. Is the opening in the table kept as small as
								possible?
Note: The clearance between the edge of
								the rear table and the cutting head shall be 1/8 inch or less. The table throat
								opening shall not be more than 1 1/2 inches when tables are set or aligned with
								each other for a zero cut.
Y N N/A
3. Does each hand-fed jointer with a horizontal
								cutting head have an automatic guard that covers all sections of the head on
								the working side of the fence or gauge?
Y N N/A
4. Does each wood jointer with a vertical head
								have either an exhaust hood or other guard arranged so it completely encloses
								the revolving head, except for a slot wide enough for the material to be
								jointed?
Y N N/A
5. Is the knife blade of jointers installed and
								adjusted so that it does not protrude more than 1/8 inch beyond the cylindrical
								body of the head?
Y N N/A
L.
				  Tenoning Machines
Circle the Appropriate Answer
1. Are feed chains and sprockets of double-end
								tenoning machines completely enclosed, except for the portion of chain used for
								conveying the stock?
Y N N/A
2. Are sprockets and chains at the rear ends of
								frames guarded at the sides by plates projecting beyond the edges of sprockets
								and lugs?
Y N N/A
3. If used on tenoning machines, are cutting heads
								and saws covered by metal guards?
Note: The guards must cover at least the
								unused part of the periphery of the cutting head. If the guard is made of sheet
								metal, the material used must be at least 1/16 inch thick, and if it is cast
								iron, it must be at least 3/16 inch thick.
Y N N/A
4. If an exhaust system is used on a tenoning
								machine, is the guard part of the exhaust hood?
Y N N/A
M.
				  Boring and Mortising Machines
Circle the Appropriate Answer
1. Are safety-bit chucks with projecting-set
								screws prohibited?
Y N N/A
2. Are boring bits provided with a guard that
								encloses all portions of the bit and chuck above the material being worked?
Y N N/A
3. Is the top of the cutting chain and driving
								mechanism enclosed?
Y N N/A
4. When a counterweight is used, is one of the
								following (or equivalent means) used to prevent its dropping?
a. It is bolted to the bar by a bolt passing
								through both bar and counterweight.
b. A bolt is put through the extreme end of the
								bar.
c. Where the counterweight does not encircle the
								bar, a safety chain is attached to it.
d. Other types of counterweights are suspended by
								chain or wire rope and shall travel in a pipe (or other suitable enclosure) if
								they might fall and cause injury.
Y N N/A
5. Are universal joints on spindles of boring
								machines completely enclosed to prevent contact by the operator?
Y N N/A
6. Is each operating treadle covered by an
								inverted U-shaped metal guard, fastened to the floor, and of adequate size to
								prevent tripping?
Y N N/A
N.
				  Wood Shapers and Similar Equipment
Circle the Appropriate Answer
1. Is the cutting head of each wood shaper or
								hand-fed panel raiser (or other similar machine that is not automatically fed)
								enclosed with a cage or adjustable guard designed to keep the operator's hand
								away from the cutting edge?
Y N N/A
O.
				  Planing, Molding, Sticking, and Matching Machines
Circle the Appropriate Answer
1. Is each planing, molding, sticking, and
								matching machine equipped with a metal guard covering the cutting heads?
Y N N/A
2. When an exhaust system is used, does the guard
								form part of the exhaust hood?
Note: If the guard is constructed of
								sheet metal, the material used shall be at least 1/16 inch thick, and if it is
								constructed of cast iron, it must be at least 3/16 inch thick.
Y N N/A
3. Are feed rolls guarded by a hood or suitable
								guard to prevent the hands of the operator from contacting the in-running
								rolls?
Y N N/A
4. Do the surfaces and planers (provided with the
								sectional infeed rolls) give sufficient feeding contact pressure on the stock
								thickness?
Y N N/A
P.
				  Profile and Swing-Head Lathes and Wood Heel Turning Machines
Circle the Appropriate Answer
1. Are the cutting heads of each profile and swing
								head lathe covered by a metal guard?
Y N N/A
2. Are cutting heads on wood-turning lathes
								covered as much as possible by hoods or shields?
Y N N/A
3. Do the following have hoods enclosing the
								cutter blades completely? (except at the contact points where the stock is
								being cut):
a. shoe last and spoke lathes;
b. doweling machines;
c. wood heal-turning machines; and
d. other automatic wood-turning lathes of the
								rotating knife type.
Y N N/A
4. Are lathes used for turning long pieces of wood
								stock held only between the two centers equipped with long, curved guards
								extending over the tops of the lathe?
Note: This is to prevent the work pieces
								from being thrown out of the machine if they become loose.
Y N N/A
5. When an exhaust system is used, does the guard
								form part or all of the exhaust hood?
Note: If the guard is constructed of
								sheet metal, the material used must be at least 1/16 inch thick, and if it is
								constructed of cast iron, it must be at least 3/16 inch thick
.
Y N N/A
Q.
				  Sanding Machines
Circle the Appropriate Answer
1. Are the feed rolls of self-feeding sanding
								machines protected with a semi-cylindrical guard to prevent contact with the
								in-running rolls?
Y N N/A
2. Does the bottom guard come to within 3/8 inch
								of a plane formed by the bottom or contact face of the feed roll where it
								touches the stock?
Y N N/A
3. Is each drum-sanding machine equipped with an
								exhaust hood or other guard if no exhaust hood is required?
Y N N/A
4. Does each disk-sanding machine enclose the
								revolving disk (except for the portion of the disk above the table if a table
								is used)?
Y N N/A
5. Is each belt-sanding machine provided with
								guards at each nip point where the sanding belt runs onto a pulley?
Y N N/A
R.
				  Veneer, Cutting and Wringers
Circle the Appropriate Answer
1. Are veneer-slicer knives guarded at the front
								and ready to prevent contact with the knife edge?
Y N N/A
2. Do veneer clippers have automatic feeds, or are
								they provided with a guard that makes it impossible to place a finger or
								fingers under the knife while feeding or removing the stock?
Y N N/A
3. Are sockets on chain or slat-belt conveyors
								enclosed?
Y N N/A
4. Are hand and foot power guillotine veneer
								cutters provided with rods or plates or other satisfactory means, arranged on
								the feeding side so that the hands cannot reach the cutting edge of the knife
								while feeding or holding the stock in place?
Y N N/A
5. Is the operator required to make sure that the
								machine is clear and that other people are not in a hazardous position before
								starting or restarting the machine? (For example, when veneer slivers or rotary
								veneer-cutting machines have been shut down to insert logs or to make
								adjustments.)
Y N N/A
S.
				  Miscellaneous Woodworking Machinery
Circle the Appropriate Answer
1. Are the feed rolls of roll-type glue spreaders
								guarded by a semi-cylindrical guard?
Note: The bottom of the guard shall come
								to within 3/8 inch of a plane formed by the bottom or contact face of the feed
								roll where it touches the stock.
Y N N/A
2. Is each point of operation for combination or
								universal woodworking machines guarded as required for such a tool in a
								separate machine?
Y N N/A
AUTHORITY NOTE:
					 Promulgated in accordance with
					 R.S.
					 17:6(A)(10).