Consolidate, and add some content from wiki.

Author: iykdw

syllabuses/Workshop/Bantam Lathe/risk-assessment.md

@@ -1,65 +1,43 @@
 # Bantam Lathe
 
-## Injuries from tools or workpiece
+## Pinching in moving axis
 
 ### Severity
 
-H
-
-### Likelihood
-
 M
 
-### Who may be harmed & how
-User - the user may receive cuts from tools while handling or sharpening them. They may also be cut by sharp edges on the workpiece. Long swarf can wrap around the workpiece causing unexpected sharp edges.
-
-### Control measures
-- Training - user should not touch cutting surfaces at any time, and should be aware of potential sharp edges on the workpiece. Workpieces should be sanded where appropriate before being considered "finished."
-- Training - swarf cleanup should be done with shop vac or dustpan and brush, not by hand.
-- Equipment - an emergency stop button is installed. A first aid kit is available.
-
-
-## Injuries from improper setup
-
-### Severity
-
-H
-
 ### Likelihood
 
 L
 
 ### Who may be harmed & how
-- User - the user may be hurt if the workpiece comes loose, a tool is improperly secured and is ejected from the machine, or if the chuck key is left in the lathe.
-- Bystanders and other users of the room - other users in the room may similarly be hurt if the workpiece, tool, or chuck key are ejected from the machine.
+- User - the user's extremities may be crushed by the table and slide as they are moving, particularly if power feed is being used. A risk of crushing is also present when movingthe tailstock.
 
 ### Control measures
-- Training - user should ensure workpieces and tools are secured and the chuck key is removed before starting the machine.
-- Awareness - user must inform all users of the room that they are using the lathe.
-- Equipment - anyone in the room while the lathe is being used should be wearing appropriate PPE (eye protection, ear protection, and closed-toe shoes). An emergency stop button is installed, and first aid it is available.
+- Equipment - A first aid kit is available. A mechanical foot brake and emergency stop button are installed.
+- Training - user should be aware of crushing risk when performing movement or cutting operations, and ensure that they are clear of potential crush zones. User should ensure that threading lead screw and power feed are disengaged before using machine.
 
 
-## Entanglement in moving parts
+## Injury or damage while changing chuck
 
 ### Severity
 
-H
+M
 
 ### Likelihood
 
 L
 
 ### Who may be harmed & how
-- User - the user is most at risk from loose clothing, jewellery, or hair being caught in the spindle or leadscrews. Theymay also be entangled while holding a file or other tool in contact with the workpiece.
-- Bystander - anyone standing close by the lathe while it is in operation may become entangled if they have loose clothing, jewellery, or long loose hair.
+- User - the chucks are heavy and hard to grip, and require movement to unergonomic positions during changing. Dropping a chuck could cause a crushing injury to hands or feet. Positioning the chuck may aggravate existing muscular or skeletal conditions.
+- The space - the lathe may also be damaged if a chuck is dropped on it.
 
 ### Control measures
-- Training - user must ensure that they and anyone nearby have removed secured clothing, removed jewellery, and tied hair back. User should avoid holding files and must not hold sandpaper or emery paper in their hand. If sanding using the lathe is required, the sanding medium should be glued to a piece of wood. In all cases, tools held againt the workpiece must be held with a very loose grip, and should be released immediately in the event of unexpected force.
-- Awareness - user must inform all users of the room that they are using the lathe.
-- Dual Working - user should not use the lathe if they are the only person in earshot. Where possible, the user should inform other lab users that they are using the lathe, and give an estimate of how long for. User should - at minimum - have a mobile phone capable of calling 999 easily accessible about their person.
-- Equipment - an emergency stop button is installed.
+- Training - the user should ensure plentiful space around the chuck is cleared before attempting to change the chuck, and that they are aware of other users who might jostle or bump them. A piece of wood should be placed under the chuck before removal. Chucks should not be changed if the user is injured or has a disability which may impact the operation.
+- Equipment - appropriate shoes, preferably with steel toecaps, should be worn during chuck changes. A first aid kit is available.
 
-## Crushing in moving axis
+
+## Injury from tools
 
 ### Severity
 
@@ -70,83 +48,90 @@ M
 L
 
 ### Who may be harmed & how
-- User - the user's extremities may be crushed by the table and slide as they are movin, particularly if power feed is being used.
+- User - tools can become hot due to friction while cutting and could cause burns. Tools are also sharp and may cause cuts.
 
 ### Control measures
-- Equipment - the power feed will disengage if significant resistance to movement is encountered. A first aid kit is available. An emergency stop button is installed.
-- Training - user should be aware of crushing risk when performing movement or cutting operations, and ensure that they are clear of potential crush zones.
+- Training - the user should use coolant during cut operations where appropriate. The user should be aware that tools should not be touched immediately after a cut is finished, and never in cutting regions.
+- Equipment - a first aid kit is available.
 
-## Injury from flying swarf
+
+## Injuries from improper setup
 
 ### Severity
 
-M
+H
 
 ### Likelihood
 
-M
+L
 
 ### Who may be harmed & how
-- User - the user may experience harm if swarf is ejected from the workpiece.
-- Bystanders and other users of the room - though less likely, swarf ejected during cutting may injure other users in the room.
+- User - the user may be hurt if the workpiece comes loose, a tool is improperly secured and is ejected from the machine, or if the chuck key is left in the lathe.
+- Bystanders and other users of the room - other users in the room may similarly be hurt if the workpiece, tool, or chuck key are ejected from the machine.
 
 ### Control measures
-- Training - user should perform cuts at appropriate feeds and speeds to ensure swarf is an appropriate size. User should stop the machine immediately if swarf is being ejected violently or is too big or too small.
-- Equipment - user and other users of the room should wear eye protection, ear protection, closed toed shoes, and long sleeves. A first aid kit is available. An emergency stop button and footbrake are installed.
+- Training - user should ensure workpieces and tools are secured and the chuck key is removed before starting the machine.
+- Awareness - user must inform all users of the room that they are using the lathe.
+- Equipment - anyone in the room while the lathe is being used should be wearing appropriate PPE (eye protection and closed-toe shoes). An emergency stop button is installed, and first aid it is available.
 
 
-## Crushing from chuck
+## Entanglement in moving parts
 
 ### Severity
 
-M
+H
 
 ### Likelihood
 
 L
 
 ### Who may be harmed & how
-- User - the chucks are heavy and hard to grip, and require movement to unergonomic positions during changing. Dropping a chuck could cause a crushing injury to hands or feet.
-- The space - the lathe may also be damaged if a chuck is dropped on it.
+- User - the user is most at risk from loose clothing, jewellery, or hair being caught in the spindle or leadscrews. They may also be entangled while holding a file or other tool in contact with the workpiece.
+- Bystander - anyone standing close by the lathe while it is in operation may become entangled if they have loose clothing, jewellery, or long loose hair.
 
 ### Control measures
-- Training - the user should ensure plentiful space around the chuck is cleared before attempting to change the chuck.
-- Equipment - appropriate shoes, preferably with steel toecaps, should be worn during chuck changes. A first aid kit is available.
+- Training - user must ensure that they and anyone nearby have removed secured clothing, removed jewellery, and tied hair back. Gloves must not be worn.
+- Training - user should avoid holding files and must not hold sandpaper or emery paper in their hand. If sanding using the lathe is required, the sanding medium should be glued to a piece of wood. In all cases, tools held againt the workpiece must be held with a very loose grip, and should be released immediately in the event of unexpected force.
+- Training - user must ensure that neither they nor anyone else lean into the machine when the VFD is powered. Before starting the machine, user should ensure that the threading lead screw is disengaged.
+- Awareness - user must inform all users of the room that they are using the lathe, and ask them to keep clear to avoid jostling or pushing.
+- Dual Working - user should not use the lathe if they are the only person in earshot. Where possible, user should inform other lab users that they are using the lathe, and give an estimate of how long for. User should - at minimum - have a mobile phone capable of calling 999 easily accessible about their person.
+- Equipment - a mechanical footbrake and emergency stop button are installed.
 
 
-## Burns from tools or workpieces
+## Fire
 
 ### Severity
 
-M
+H
 
 ### Likelihood
 
 L
 
 ### Who may be harmed & how
-- User - the workpiece and tools can become hot due to friction while cutting and could cause burns.
+- User - the user may sustain burns if the material or swarf catches fire.
+- The space - a fire in the workshop could damage the tools and the building as a whole.
+- Next user - if flammable swarf is left on the machine, the next user could be burned if it catches fire.
 
 ### Control measures
-- Training - the user should use coolant during cut operations where appropriate. The user should be aware that workpiece and tools should not be touched immediately after a cut is finished.
-- Equipment - a first aid kit is available.
+- Training - user must use coolant for flammable metals. User must ensure all flammable swarf (metals and wood) are removed from the machine after operation and that a thorough cleanup is performed. Wood should not be turned on this machine. Flammable metals must be turned with extreme care and preparation, and after consultation with qualified users if there is any uncertainty.
+- Equipment - a fire extinguisher is available. If turning flammable materials, the user should ensure it is within easy reach and is in-date.
 
 
-## Fire
+## Injuries from workpiece and swarf
 
 ### Severity
 
 H
 
 ### Likelihood
 
-L
+M
 
 ### Who may be harmed & how
-- User - the user may sustain burns or eye damage if the material or swarf catches fire.
-- The space - a fire in the workshop could damage the tools and the building as a whole.
-- Next user - if flammable swarf is left on the machine, the next user could (inadvertently and blamelessly) be burned or sustain eye damage if it catches fire.
+User - the user may receive cuts or burns from swarf or the workpiece.
 
 ### Control measures
-- Training - user must use coolant for flammable metals. User must ensure all flammable swarf (metals and wood) are removed from the machine after operation and that a thorough cleanup is performed. Wood should not be turned on this machine. Flammable metals must be turned with extreme care and preparation, and after consultation with qualified users if there is any uncertainty.
-- Equipment - a fire extinguisher is available. If turning flammable materials, the user should ensure it is within easy reach and is in-date.
+- Training - user should not touch cutting surfaces at any time, and should be aware of potential sharp edges on the workpiece (including from swarf which has not fallen clear). Workpieces should be sanded where appropriate before being considered "finished." Where possible, the perspex cut guard should be lowered for all operations. Users should select appropriate feed and speeds to ensure swarf is appropriately sized.
+- Training - swarf cleanup should be done with shop vac or dustpan and brush, not by hand.
+- Equipment - if available, tight long sleeves should be worn. An emergency stop button is installed. A first aid kit is available.