Table 3.
Valve Removal Process
| Activity | Energy flow | Target | Controls and barriers |
|---|---|---|---|
| Fetch cylinder from stock | Cylinder | Staff (lesion) | Personal Protective Equipment (PPE) |
| Fetch cylinder from stock | Staff | Valve (damage) | Absence of barriers and controls |
| Positioning the cylinder in the vise | Vise for cylinder valving process and extender | Staff (lesion) | PPE |
| Positioning the cylinder in the vise | Vise for the valving process the cylinder | Valve (damage) | Maintenance and Training |
| Removal of the handle | Incorrect handling of the screwdriver | Handle/valve(damage) | Absence of barriers and controls |
| Loosening the valve | Incorrect handling of the wrench | Staff (lesion) | PPE and training |
| Loosening the valve | Incorrect handling of the wrench | Valve (damage) | Absence of barriers and controls |
| Handle installation | Incorrect handling of the screwdriver | Handle/valve(damage) | Absence of barriers and controls |
| Loosening of the vise | Vise for cylinder valving process and extender | Staff (lesion) | PPE and training |
| Cylinder return to stock | Cylinder | Staff (lesion) | PPE |
| Cylinder return to stock | Staff | Valve (damage) | Absence of barriers and controls |
Source: Own elaboration