7. MAINTENANCE
89
ENGLISH
• Advantages of maintenance contract system
(1) Economic efficiency
- By making and implementing maintenance plan, the aging of the machine can be minimized.
- By increasing the lifespan of a machine, the possibility of major accidents is lowered thus saving the maintenance
cost.
- By implementing the contract provisions in a fixed amount of money annually, budget managing is possible.
- We provide consultation service to customers in advance, so as to avoid unfortunate cost caused by unexpected
breakdowns.
- It eliminates any opportunity loss in the production process caused by a sudden stop of the machine.
(2) Safety
- Through maintenance on a number of safety devices installed on the machine, the machine can be safely oper-
ated without accident.
- A breakdown can be prevented by conducting a periodic check beforehand.
- In case the maintenance contract is made, the maintenance skills will be improved through the on-site technical
training.
(3) Speed
- The condition of the machine will be always identified through the regular maintenance, and therefore, accurate
advice can be provided for a breakdown even via telephone.
- Even during the busy season for service work, a prompt action can be provided preferentially for the maintenance
contract service.
Contents of Maintenance Contract(standard)
• Machine for air conditioning only
1. Inspection before air conditioning
(1) Tightness test
(2) Refrigerant charging
(3) Electricity related insulation test
(4) Safety device inspection/adjustment
(5) Operation test between starter panel and control panel
(6) Vacuuming
(7) Chiller operation adjustment
2. Inspection during air conditioning period (1 time)
(1) Electricity related insulation test
(2) Operation log checking
(3) Chiller operation adjustment
3. Inspection after completion of air conditioning
(1) Refrigerant extraction
(2) Nitrogen gas filling
(3) Filter checking(replacement)
(4) Oil tank cleaning
(5) Operation log checking
(6) Sensor inspection(replacement)
(7) Oil extraction
(8) Tightness test
(9) Electricity related insulation test
(10) Operation test between starter panel~control panel
(11) Oil pump inspection
(12) Chiller operation adjustment
4. Water quality analysis(1 time)
Summary of Contents for LCWW
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