18.7. Machinery Checklist

Does the hood cover the part of the saw blade exposed above the material? AFI 91-203 para.

Is a spreader provided at the table saw to prevent the wood from clamping down on the saw blade? AFI 91-203 para.

Are table throat openings kept as small as possible to prevent material from dropping below the level of the table? AFI 91-203 para.

Are anti-kickback dogs and fingers or safety hold-down wheels installed when material is being ripped? AFI 91-203 para.

Are anti-kickback dogs and fingers inspected before each use? AFI 91-203 para.

Is the blade or cutting head inspected for proper cutting condition (e.g., teeth sharp and properly set, no cracks, free of foreign residue) before a job is started? AFI 91-203 para.

Do Services hobby shop supervisors label each saw with a sign or decal that states which type blade is installed and what it is used for? AFI 91-203 para.

Do operators take care not to crowd the saw (force material faster than it can be cut)? AFI 91-203 para.

Is a permanent line marked on the table in front of and in line with the saw blade to enable the operator to set the rip fence without lifting the saw guard? AFI 91-203 para.

Are hands kept out of the line of cut when feeding saws? AFI 91-203 para.

Are feather boards used as side guides and top hold-downs on operations (rabbeting, grooving and dadoing) when a saw blade hood cannot be used? AFI 91-203 para.

Are radial saws equipped with a hood that encloses the saw blade and arbor ends? AFI 91-203 para.

Is the lower section of the hood hinged so it rises and falls, adjusting itself automatically to the thickness of the material as the saw passes through it? AFI 91-203 para.

Does the saw have a positive limit-stop to prevent the saw from traveling beyond the front edge of the table? AFI 91-203 para.

Is the direction of saw rotation conspicuously marked on the hood? AFI 91-203 para.

Is a permanent decal that reads ―DANGER: DO NOT RIP OR PLOUGH FROM THIS END‖ affixed to the rear of the saw guard at approximately arbor level? AFI 91-203 para.

Is the locking device on the saw head securely fastened when angle or miter cuts are made? AFI 91-203 para.

When removing short pieces from a table close to a saw blade, does the operator ease the saw back to the idling position and make sure all bouncing has stopped before placing hands on the table? AFI 91-203 para.

Are both upper and lower wheels completely enclosed on both sides of band saws? AFI 91-203 para.

Is the band saw guard self-adjusting, and does it completely cover the portion of the saw blade between the guide rolls and the upper wheel enclosure? AFI 91-203 para.

If material binds or pinches on the blade, is the saw turned off and blade motion allowed to stop before the operator attempts to back the work away from the blade? AFI 91-203 para.

Are jointers with front-table-mounted fences equipped with an adjustable device to prevent thin stock from slipping laterally under the portion of the fence at the rear of the table? AFI 91-203 para.

Is an automatic guard provided to cover the working and nonworking side sections of the planer/jointer cutter head and prevent any opening between the guard and wood during the operation? AFI 91-203 para.

Do planer/jointer operators use hold-down push blocks, jigs or fixtures? AFI 91-203 para.

Are guards provided for feed rolls, cutting heads and hold-down rolls at the discharge end of power feed planers? AFI 91-203 para.

Are feed rolls guarded by a metal strip in front of the rolls that will prevent an operator‘s fingers being drawn into the planer/jointer? AFI 91-203 para.

When other than corrugated top feeders are used, is an anti-kickback device installed on the planer? AFI 91-203 para.

Are shapers equipped with a braking device that will stop the cutting head within 10 seconds after power is shut off? AFI 91-203 para.

Is a double-spindle shaper machine equipped with separate braking devices? AFI 91-203 para.

Does the shaper fence extend at least 18 inches on either side of the spindle? AFI 91-203 para.

Is a hinged metal shield or hood provided on rotating, cutter-type lathes? AFI 91-203 para.

Is a brake installed on automatic lathes? AFI 91-203 para.

Are guards that will contain the work piece if it separates from its anchorage installed on lathes used for turning long pieces of material? AFI 91-203 para.

Is a guard installed on the feed rolls of self-feed sanding machines? AFI 91-203 para.

Are guards installed at each nip point on a belt sanding machine? AFI 91-203 para.

Are hold-down devices installed on table-type boring or mortising machines? AFI 91-203 para.

Are feed chains and sprockets of double end tenoning machines completely enclosed? AFI 91-203 para.

Is the motor START switch on the machine protected against accidental or inadvertent operation? AFI 91-203 para.

Is machinery installed IAW the NEC? AFI 91-203 para.

Are control switches available to workers at their operating positions so they do not need to reach over moving parts of machinery? AFI 91-203 para.

Is the stop control switch identified by a printed word or color coded red? AFI 91-203 para.

Are under-voltage protective devices installed on machines that are not safeguarded to protect the worker during under-voltage situations? AFI 91-203 para.

Have installation safety offices and shop supervisors identified those machines that require under-voltage protection? AFI 91-203 para.

Are foot treadle controls protected against unexpected or accidental tripping? AFI 91-203 para.

Are exposed non-current-carrying metal components of machines grounded? AFI 91-203 para.

Are all machine energy sources or energy isolating devices, such as disconnect switches or circuit breakers, locked out or tagged out before maintenance is performed or major adjustments are made with guards and panels removed? AFi 91-203 para.

Are proper lockout/tagout procedures followed? AFI 91-203 para.

Are machines or their dangerous moving parts positioned so hazardous areas are not accessible or do not present a hazard to workers during normal operation? AFI 91-203 para.

Before use of any safeguarding techniques, is a thorough hazard analysis made of each machine and particular situation? AFI 91-203 para.

Is the main source of power disconnected and locked in the OFF position when maintenance, service or machine adjustments are made? AFI 91-203 para.

Are safeguarding devices installed, adjusted, and used according to manufacturer‘s operating and maintenance instructions? AFI 91-203 para.

Are hazardous parts that are not protected by a safeguarding device, guarded IAW AFI 91-203 para.

Whenever a guard is removed for other than an operational requirement, is the machine shut down and the control switch(s) locked and tagged in the OFF position? AFI 91-203 para.

Are enclosure and barrier guards interlocked with the machine control so the machine cannot be activated unless the guard or the hinged or movable sections of the guard are in position? AFI 91-203 para.

Are fan blades guarded when the blades are less than seven (7) feet above the floor or working level? AFI 91-203 para.

Are all guards designed and installed so no part of the body can be inadvertently placed in, on, under or over the edges of the guard where it might contact a moving part? AFI 91-203 para.

Does the installation CE or Ground Safety office determine the best material for guard construction in environments where chemical or corrosive operations are performed? AFI 91-203 para.

Are pulleys with cracks or pieces broken out of the rims taken out of service? AFI 91-203 para.

Do operators and maintenance personnel inspect guards prior to use and after maintenance? AFI 91-203 para.

Are holding tools used only to supplement guard protection when it would otherwise be necessary to place hands in the danger zone? AFI 91-203 para.

Are presence-sensing devices used only on part-revolution clutch presses? AFI 91-203 para.

Are press areas not protected by presence-sensing devices guarded? AFI 91-203 para.

Do buttons on two-hand control devices operate only when the buttons are depressed concurrently and continuously (holding time) on the press downstroke or else is the clutch disengaged, the brake applied and the slide stopped? AFI 91-203 para.

Are energy controls isolated by a lockout device and safety blocks during press repairs or alterations of the die area? AFI 91-203 para.

Are operating levers on hand-tripped machinery with more than one operating station interlocked? AFI 91-203 para.

Is a means provided to select OFF, INCH, SINGLE STROKE or CONTINUOUS modes of operation integrated with the clutch brake control to govern the operation mode of the press? AFI 91-203 para.

During the inch operating mode, is concurrent use of both hands required to actuate the press clutch? AFI 91-203 para.

For presses with a single control, is it protected against accidental actuation and located so the worker cannot reach into the point of operation while actuating the control? AFI 91-203 para.

Are individual operator‘s two-hand trip controls designed and constructed so use of both hands is required to protect against unintentional press operations? AFI 91-203 para.

Do two-hand trip systems on full-revolution-clutch presses provide anti-repeat protection for operators? AFI 91-203 para.

When two-hand trip systems are used on multiple operator press machines, does each operator have a separate set of controls? AFI 91-203 para.

Are operators provided picks, pliers, tongs and other hand-feeding tools required for the safe handling of stock, dies or materials? AFI 91-203 para.

Is a die setter‘s safety bar used for turning the flywheel when the power is off? AFI 91-203 para.

Are power presses safeguarded to prevent the operator‘s hands entering the area between the dies during press cycling? AFI 91-203 para.

Is a power disconnect or Stop switch (capable of being locked) provided on hydraulic presses? AFI 91-203 para.

When using shears, is the area where sheared or punched refuse drops barricaded to prevent injuries to operators and helpers? AFI 91-203 para.

Are shears equipped with an emergency stop control? AFI 91-203 para.

Are tools adjusted in lathe tool rests so they are slightly above the center? AFI 91-203 para.

When chips are generated during lathe use, is a tool, puller, brush or shovel used to remove them? AFI 91-203 para.

Is a chip shield provided on planers to prevent chips from flying and striking personnel? AFI 91-203 para.

Do the supervisor and installation Ground Safety office develop requirements on machine safe-guards for saws not covered in this standard? AFI 91-203 para.

Are both upper and lower wheels of bandsaws completely enclosed on both sides? AFI 91-203 para.

Is there a self-adjusting guard on the bandsaw that will completely cover the saw blade between the guide rolls and the upper wheel enclosure? AFI 91-203 para.

Are vises, fixtures and other work-holding equipment used on hacksaws to hold the work piece securely? AFI 91-203 para.

Are riveting machines guarded to prevent operators placing their hands between dies? AFI 91-203 para.

When more than one operator is required to operate a machine from different control stations, is each station provided with a cycle start button? AFI 91-203 para.

Are all cycle start buttons other than the one being used made inoperative (when one operator can operate the machine from more than one station)? AFI 91-203 para.

Are the emergency stops color coded red and located at each operator control station? AFI 91-203 para.

Can machine motions that are stopped by the emergency or master switch only be restarted by deliberate action by the operator? AFI 91-203 para.

Do circuits employing accumulator tanks automatically vent the accumulator pressure or isolate the accumulator when the machine is shut off? AFI 91-203 para.

Are non-vented accumulators identified with a sign saying ―WARNING: PRESSURIZED VESSEL‖ or the nearest commercially available equivalent? AFI 91-203 para.

Are flexible pneumatic and hydraulic hoses arranged so they do not create a tripping hazard? AFI 91-203

Whenever pressure is maintained after power is off, is a warning plate used? AFI 91-203 para.

Are local exhaust ventilation systems provided and used when dry grinding, polishing or buffing is performed to maintain employee exposures within permissible exposure limits? AFI 91-203 para.

Are abrasive wheel machines only operated with safety guards installed? AFI 91-203 para.

Are work rests used during all off-hand grinding operations? AFI 91-203 para.

Are work rests adjusted closely to the wheel with a maximum opening of 1/8 inch to prevent work being jammed between the wheel and rest? AFI 91-203 para.

Are operators prevented from using abrasive grinding wheels to grind aluminum, brass, copper or other soft metals (unless the wheel is specifically designed for that purpose)? AFI 91-203

Are operators prevented from using the side of the wheel for grinding (other than wheels designed for that purpose)? AFI 91-203 para.

Do all operators ensure that the grinders, buffers and wire brush machines are turned off when work is completed or prior to leaving the vicinity of the machine? AFI 91-203 para.

Do the operators wear safety glasses or goggles for protection of the eyes, and a face shield for protection from wheel breakage, sparks and other grinding debris? AFi 91-203 para.

Are safety guards in place prior to starting a grinder? AFI 91-203 para.

Do personnel wear face shields over safety glasses for face protection when dressing grinder wheels? AFI 91-203 para.

On grinding wheels requiring guards, does the guard cover the spindle end, nut and flange projections? AFI 91-203 para.

Where the work is applied to the grinding wheel above the horizontal center line, is the exposure of the grinding wheel periphery as small as possible and not over 60 degrees? AFi 91-203 para.

Do supervisors of operations that use materials such as magnesium, titanium, thorium, and beryllium contact installation Ground Safety office, FES Flight and BE for assistance to determine safe work practices and protective equipment needs? AFI 91-203 para.


Report Routing

Supervisor Signature:


Superintendent Signature:


Commander Signature:


Safety Office Signature:


Wing Commander Signature:


Please note that this checklist is a hypothetical example and provides basic information only. It is not intended to take the place of, among other things, workplace, health and safety advice; medical advice, diagnosis, or treatment; or other applicable laws. You should also seek your own professional advice to determine if the use of such checklist is permissible in your workplace or jurisdiction.