Saimp milling machine - safe operating procedure
Preparation - work area check:
- Ready access to and egress from the machinery (min of 600mm clearance required)
- Area is free from grease, oil, debris and objects, which can be tripped over.
(Use diatomaceous earth ('kitty litter') or absorption pillow to soak up grease, coolant, oil and other fluids)
- Area is clear of unauthorised people before commencing work.
Personal Attire & Safety Equipment:
- Approved closed toe footwear must be worn at all times.
- Approved safety spectacles/goggles must be worn at all times.
- Clothing must be tight fitting.
- Long hair must be confined close to the head by an appropriate restraint.
- Finger rings and exposed loose jewellery (eg bracelets and necklaces) must not be worn. Medic Alert bracelet must be taped if exposed.
- Gloves must not be worn when operating machine, excepting where specifying otherwise.
Operation Of Emergency Stop Button:
- Switch lights and power on at their respective main switches, where required.
- Insert key and start machine using the Start switch.
- Check that the Emergency Stop Button is working.
- Check that the Machine Guard interlock Emergency Stop micro-switches (where fitted) are working.
- Release the Emergency Stop button in preparation for next machine use.
Machine Pre-operational Safety Checks - Safety Precautions that MUST be Observed:
- Visual inspection of machine to verify it is in good operational order, ensuring no damage to any stationary and/or moving parts. Any unsafe equipment is to be reported to an authorised staff member/supervisor and tagged out.
- Ensure lighting and power are switched on their respective main switches, where required
- Ensure that machine lighting is adequate.
- Start machine by pressing the Start Button.
- Check that the Emergency Stop Button is working
- Check that the guards chosen from the available guard set are appropriate for the job.
- Check that the Machine Guard interlock Emergency Stop micro-switches (where applicable) are working.
- Check that all longitudinal, cross and vertical power feeds are disengaged prior to starting the machine.
- Assess material's size and weight to be machined. DO NOT exceed the size and weight capacity for the machine's maximum cut width and overall mill bed length.
IF IN DOUBT, ASK
- Assess material type to be machined. Additional PPE may be required (i.e. hearing protection for thin resonant materials; dust mask or full face mask for, possibly toxic, dust forming materials).
IF IN DOUBT, ASK
- Inspect material to be machined for sharp and/or hazardous edges. Leather safety gloves must be worn at all times when handling materials with sharp or brittle edges or surfaces.
- Inspect mill head, bed vice and/or clamping mechanisms for defects (e.g. collets not clamping correctly, or out of round). Any unsafe equipment to be reported to an authorised staff member and tagged out (see policy/procedure).
- Inspect milling cutters, etc., for damage before use. DO NOT use blunt or damaged tools.
- Locate and be familiar with the operation of the ON/OFF starter lever.
- Locate and be familiar with the operation of the Emergency Stop Button and interlocked guards and devices.
- Wear appropriate PPE for task being performed (i.e. safety glasses. Leather gloves required when cleaning).
- Ensure light and power is switched on at their respective switches.
- Ensure item to be machined is securely clamped in the table vice and vice is securely fixed to the mill table. Or, that the item to be machined is securely clamped directly onto the mill table, using approved clamping mechanisms.
- Ensure milling cutter is securely tightened in the collet and tightened using the correct collet key, and/or;
- When drilling, ensure drill bit is securely tightened in the chuck, using the correct chuck key.
- Select the correct spindle speed for the size of milling cutter (drill bit) to be used and type of material to be machined.
- Remove the collet key (chuck key) and tools used for clamping work piece, prior to start up.
- Ensure that the fixed guards are in the correct safe operating position.
- Ensure that the milling cutter (drill bit) is clear of the work piece prior to starting machine.
- Engage starter lever/button.
- Cautiously introduce milling cutter (drill bit) to the work piece.
- DO NOT force the milling cutter (drill bit) into the work piece.
- When milling use a steady uniform forward motion (when using manual feed) until cut complete.
- When drilling use a gentle back and forwards motion to clean drill flutes of swarf until the drill operation is completed.
- DO NOT exceed optimum cutting feed and speed for the material being machined.
- NEVER LEAVE MILLING MACHINE RUNNING WHILST UNATTENDED.
- Once machining operation is completed, engage stop button and allow machine to come to rest.
- Remove metal swarf etc. so no slipping hazards exist for the next operator.
- Remove work piece, cutting tools and drill bits used.
- Return excess stock material to metal storage area.
- Clean up machine and surrounding area.
- Visual inspection of plant prior to use. Unsafe plant to be tagged out and reported to Workshop Manager.
- Keep all parts of your body and attire safely clear of the rotating and moving parts.
- Ensure scheduled maintenance for this machine has been carried out; including scheduled testing of Emergency Stop.
- Only authorised qualified staff to operate this machine, or students who have received full Competency Training from an authorised qualified staff member (recorded in training register).
- Guards must be correctly fitted to the machine at all times during operation. DO NOT open guards while machine is in use.
- NEVER LEAVE MILLING MACHINE RUNNING WHILE UNATTENDED.
- Safety glasses must be worn at all times during the operation of this machine.
- Closed Steel Toed Shoes must be worn at all times during the operation of this machine.
- Loose hair to be securely tied back, loose clothing to be rolled up and/or secured, loose jewellery to be removed.
- Hearing protection to be worn, where appropriate to the task being performed.
- Leather Safety Gloves to be worn, where appropriate to the task being performed.
- Ensure fingers and leather safety gloves are kept clear of revolving and/or moving parts, and cutting and/or sharp tools and/or other instruments.
- Switch Off machine before leaving it unattended.
Note: This Safe Operating Procedure must be reviewed:
a) after any accident, incident or near miss;
b) when training new staff;
c) if adopted by new work group;
d) if equipment, substances or processes change; or
e) within 1 year of date of issue.