Different type of maintenance, and safety tool lockout tagout details

1. MAINTENANCE TYPES
BY KARAN MAHATO

2. AMINTENANCE OF HYDROELECTRIC PLANTS
maintenance
Planned
maintenance
Corrective
maintenance
•Preventive
maintenance
Unplanned
maintenance
Breakdown
maintenance

3. BREAKDOWN MAINTENANCE
• When equipment all of a sudden come to
breakdown stage (stop functioning) then
maintenance done to make equipment come to
operation is breakdown maintenance.

4. PREVENTIVE MAINTENANCE
• It is regular and routine maintenance of equipment in order to keep them
running and prevent any costly unplanned downtime from unexpected
equipment failure. (Examples: repairing and replacing parts, lubricating)
• The benefits includes;
Improved reliability and life of equipment
Fewer costly repairs and downtime
Fewer error in operation
Reduced health and safety risk and improve safety

5. PREVENTIVE MAINTENANCE TYPES
• Preventive maintenance are two types:
1) Periodic (time based): Periodic maintenance is a strategy that requires
maintenance tasks to be planned ahead of time on equipment and performed
at set time intervals while the asset is operational.
2) Predictive maintenance ( condition based): It is a technique that uses data
analysis tools and techniques to detect possible defects in equipment so you
can fix them before they result in failure.

6. CORRECTIVE MAINTENANCE
• Maintenance tasks that are undertaken to identify isolate and repair a fault in
order to restore equipment with same working efficiency as before called
corrective maintenance.
• Advantage include:
Less planning than preventive maintenance.
Cost effective in short term, (costly for longterm)
Extend equipment lifespan.

7. LOCKOUT/TAGOUT
• It is practices to safeguard employees from the unexpected energization or
startup of machinery and equipment, or release of hazardous energy during
service or maintenance activities.
• “Lockout” is the placement of a lockout device on an energy-isolating device, in
accordance with an established procedure, ensuring that the energy-isolating
device and the equipment being controlled cannot be operated until the lockout
device is removed.
• “Tagout” is the placement of a tagout device on an energy-isolating device, in
accordance with an established procedure, to indicate that the energy-isolating
device and the equipment being controlled may not be operated until the tagout
device is removed.

8. STEPS FOR LOCKOUT/TAGOUT
1) Prepare for shutdown
2) Shutdown the machine or equipment
3) Disconnect the energy-isolating device
4) Apply the lockout/tagout device
5) Render all stored and residual energy safe
6) Verify the isolation and deenergization of machine or equipment prior to
starting work.