Lathe Metal Green - Acraturn GH1440A

Aliases Green Lathe, Big Lathe
Other References
Official Maintainer Ben Jackson

Working

This machine requires induction to use.

Book an induction on Eventbrite.
https://www.eventbrite.com/cc/metalshop-inductions-804979

Required Always wear AS/NZS 1337.1 compliant safety glasses while operating this machine.
Required Enclosed shoes are required, no open sandals, thongs etc
Required Restrain hair while operating machine
Prohibited Loose clothing and jewellery not to be worn while operating this machine.
Recommended We recommend hearing protection.
Warning Entanglement hazard present while wearing gloves.
Maintenance Disconnect power to the machine before performing maintenance, including wheel changes
Name Value
Motor Power 415V, 3 Phase, 2.54kW
Speed Range 16 Speed, 45-1800RPM
Thread and feed gearbox Imperial
Change gears Current installed: 25/127/50. Additional change gears are not currently available.
Swing over bed 356mm (14“)
Swing over cross slide 220mm (8-5/8”)
Distance between centres 1000mm (40“)
Number of spindle speeds 16
Range of spindle speeds 45 - 1800 RPM
Spindle bore size 38mm (1-1/2”)
Spindle nose D1-4 Camlock
Taper of spindle bore Morse taper 5
Tailstock quill taper Morse taper 3

Manufacturer

  • Acraturn
Date Description Workaround Proposed Remediation
6/4/2022 Missing change gears for metric threads Investigate if missing 40 teeth (*2) and 32 teeth gears can be sourced.
6/4/2022 No Interlock Use key to unlock the 'Reset' kill switch Install interlock.
9/8/2022 Key missing for E-stop Use the brake to stop the machine Replace E-stop when installing the interlock.
Date Modified By Description Remediation Cost
4/2022 Ben Jackson Face plates loose/open Bolted face plates to headstock. $0
4/2022 Ben Jackson Power feed lever not disengaging Spaced out the lever guide block to ensure guide pin remains trapped. $0
4/2022 Ben Jackson Panels missing over drive pulley Replaced panel after finding new bolts. $0
4/2022 Ben Jackson Missing lever for feed direction Manufactured a new lever $0
4/2022 Ben Jackson Ill fitting coolant hose mount Removed the wood and modified the original mount to fit the coolant pipe. $0
4/2022 Ben Jackson Loose pulley on motor Re-positioned the pulley and locked it in place. $0
10/5/2022 Ryan Marple Installed Quick Change Toolpost $380
Image Category Accessory Name & Notes Location Buy from
Workholding Live Centre Top right draw in trolley next to green lathe.
Drilling Tailstock chuck Top right draw in trolley next to green lathe.
Workholding 4-Jaw Independent Chuck Bottom of trolley next to Green Lathe.
Note: Use the Lathe board to protect the ways.
Workholding 3-Jaw Self Centering Chuck On the machine.
Workholding Face Plate Bottom of trolley next to Green Lathe.
Note: Use the Lathe board to protect the ways.
Cutting Quick Change Tool Holders Top right draw in trolley next to green lathe.
Workholding Steady Rest Bottom of Trolley next to Green Lathe.
Workholding Follow Rest Bottom of Trolley next to Green Lathe.
Image Category Accessory Name & Notes Location Buy from
Interval Task
Each Use/Daily General lubrication via the oiler points on the carriage and tailstock. See image below.
Monthly Check oil levels in headstock, gearbox and apron. Refer to manual page 24.
Monthly Grease gear train.
Monthly Inspect and adjust the drive belt. Refer to manual page 22.
Annually Adjust Slide Ways and Cross-Slide nut. Refer to manual page 23.
Annually Change the oil in the headstock, gearbox and apron. Refer to manual page 24.

Task / Action Executive Cause Leader
Cause Team
Named Maintainer Trainers Cause Membership Implementer
Modification and Repairs - AC C I I I R
Induction changes C RACI RC I I I R

PLACEHOLDER: Risk assessment is important to ensure we are making tools available to members in a responsible fashion. Please make every effort to do a reasonable risk assessment. If there is a safety incident with the tool, please redo a risk assessment and add it to the table.

Ref / ID Pre-Mitigation Mitigations / Warnings / Remedies Post Mitigation
Risk Risk Severity Risk Likelyhood Risk Level Risk Severity Risk Likelyhood Risk Level Acceptable to Proceed
0001 Death Severe Possible 15 Induction to train users in correct usage. Severe Very Unlikely 5 Yes
0002 Electric Shock Major Unlikely 8 Induction to train users in correct usage.
Ensure power cables are properly connected and off the floor.
Cables are tested and tagged and inspected for damage.
Minor Very Unlikely 2 Yes
0003 Noise Moderate Likely 12 Train users to wear hearing protection. Insignificant Unlikely 2 Yes
0004 Tripping Hazard Moderate Possible 9 Train users to maintain a clean working area.
Keep all cables off the ground and secured out of the way.
Insignificant Unlikely 2 Yes
0005 Insufficient Lighting Minor Possible 6 Turn on shop lights.
Open metal-shop doors for natural lighting.
Insignificant Unlikely 2 Yes
0006 Entanglement Major Possible 12 Induction to train users in correct usage.
Remove any possible entanglement items such as long sleeves, gloves, watches, jewellery, etc.
Tie back long hair.
Minor Unlikely 4 Yes
0007 Impact Injury Major Possible 12 Induction to train users in correct usage.
Train users in correct use of the chuck/fixture plate as per the induction.
Train users in chuck key discipline (never leave the chuck key in while performing another task).
Train users to remove the chuck key before engaging the spindle motor.
Train users in appropriate use of tailstock support.
Require use of appropriate PPE.
Minor Unlikely 4 Yes
0008 Slip Major Possible 12 Induction to train users in correct usage.
Train users in correct use of coolant to avoid spilling on the floor.
Minor Unlikely 4 Yes
0009 Respiratory/Skin Irritation Moderate Unlikely 6 Induction to train users in correct usage.
Train users in the risks related to metalworking fluids.
Minor Unlikely 4 Yes
0010 Inhaliation of Fumes Moderate Possible 9 Induction to train users in correct usage.
Open metal-shop door to allow ventilation.
Fans are provided top assist in ventilation.
Train users to use the appropriate type and volume of coolant.
Require use of appropriate PPE.
Minor Unlikely 4 Yes
0011 Laceration/Dismemberment Major Possible 12 Induction to train users in correct usage.
Train users to keep clear of the cutting tool and the part.
Require that the cutting tool is securely fixed (in the quick change tool-post or tail-stock).
Require use of appropriate PPE.
Minor Unlikely 4 Yes
0012 Burn from workpiece Moderate Possible 9 Induction to train users in correct usage.
Allow parts to cool after cutting.
Train users to ensure adequate coolant is used.
Require assessing workpiece temperature before handling.
Insignificant Unlikely 2 Yes
Ref / ID Decision Details Impact Proposed Date Proposed By Status Approved By Date Resulting Actions and Comments
  • tools/metalshop/metal_lath_green
  • Last modified: 8 weeks ago
  • by capella_ben