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Maintenance system
Necessity
ㅣ Ensuring safety of users
- • Elevators are not used only by their owners. They carry unspecific general people.
- • For the safety of users, it is obligatory to install safety devices and functions for elevators according to the Elevator Safety Management Act.
- • Safety devices are checked and inspected to ensure that their functions can be always maintained.
ㅣ Preservation of owned property
- • The elevator is an attached facility that should be used for a long time, and the installation cost is very high.
- • Replacement of the entire elevator is not only costly, but also inconvenient due to long construction period.
- • Maintenance is required to prevent fatal faults from ever occurring.
ㅣ Maintain performance of equipment
- • The elevator requires various functions and features to make it convenient and comfortable for users.
- • Maintenance is required to ensure that elevators’ functions and features are properly maintained while they are in use.
Maintenance procedures
Maintenance tips
ㅣ Active attention from managers
- • Most of the maintenance and management of an elevator is outsourced to a maintenance company.
- • Maintenance companies cannot manage an elevator daily due to time and space limitations.
- • It is needed that managers must actively pay much attention to their elevators.
ㅣ Write memos on problems and deliver them during maintenance checks
- • Problems must be solved by informing them no matter how minor they are.
- • Since minor problems are not inspected in many cases, they are to be notified before an inspection.
ㅣ Confirming causes of trouble and actions taken in case of failure
- • After checking the detailed matters of a failure, check its causes, and record and keep the measures taken.
- • Most of the recent elevators may be resumed their operation just by activating the on/off operation of the main power switches on control panels.
- • These minor failures can cause serious accidents if the causes of such failures are accumulated.
ㅣ Users should pay attention to the state of maintenance
- • Many users just want to sign the contract at the lowest possible price, paying attention only to the monthly maintenance fees.
- • When selecting a maintenance company that lacks technology and has no credit, a high-priced elevator can be short-lived.
- • Elevators are expensive, and complicated and sophisticated machinery, so it is necessary for maintenance companies to have sufficient technology and
- related equipment (software and special tools).
- • Users need to be always paying attention to which maintenance companies that they have made contracts with.
Maintenance Contract
ㅣ Types of maintenance contracts
| P.O.G contract | F.M contract |
|---|---|
| •Perform preventive maintenance through periodic inspections of elevators. •Repair elevators promptly to minimize users' discomfort in the event of a fault. •If a passenger is trapped, the maintenance company rescues the passenger quickly. •In the event of an accident, the maintenance company has the responsibility to rescue passengers quickly and deal with post-rescue matters. •The owner must pay for the cost of repair. |
•The maintenance company takes charge of repair expenses such as the replacement of parts in addition to those in simple maintenance contracts. •The maintenance company is responsible for all maintenance activities except daily maintenance. |
ㅣ Comparison of advantages and disadvantages of maintenance contracts
| Type/items | P.O.G(PARTS OIL GREASE) Contract | F.M(FULL MAINTENANCE) Contract |
|---|---|---|
| Contract coverage | Regular inspection Adjustment and oil supply Self-check Troubleshooting(always) Replacement of consumable parts Replacement of small parts |
Regular inspection Adjustment and oil supply Self-check Troubleshooting(always) Replacement of consumable parts Replacement of small parts Exchange of high-priced parts Repair work Undergoing statutory periodic inspections |
| Excluded areas | Repair of damage due to use or carelessness Repair of damage caused by natural disasters Replacement and repair of design parts, etc. Exchange of high-priced parts Repair work Undergoing statutory periodic inspections |
Repair of damage due to use or carelessness Repair of damage caused by natural disasters Replacement and repair of design parts, etc. |
| Advantages | Low monthly maintenance fee It is easy to change maintenance companies |
Easy budget planning Preventive maintenance is thorough Repair period is short Limitations of liability are clear in case of breakdowns or accidents Reliable maintenance of lifetime and features of elevators Low long-term maintenance fee |
| Disadvantages | In the event of major failure, repair process can be complex, and thus it may take long time In event of breakdown or accident, the limits of liability are ambiguous A lot of repair expenses can be incurred unexpectedly Preventive maintenance can be poor High long-term maintenance cost |
Monthly maintenance fee is relatively high It is difficult to change maintenance companies |
| Others | Short-term contracts are possible | Long-term contract can pay off handsomely |