1 MAINTENANCE SCHEDULE Documents/Grasso... · 1 MAINTENANCE SCHEDULE 1.1 Maintenance works,...

1 MAINTENANCE SCHEDULE

1.1 Maintenance works, maintenance timing for screw compressor

The maintenance works for the compressor listed in the following tables are to be performed at least at the givenmaintenance times.It is recommended that all maintenance works performed during the entire run-time of the compressor be docu-mented.

Hint!

The maintenance works performed require documented evidence during the warranty period.

The maintenance works to be carried out during the maintenance works of the compressor are dependent on theoperating mode of the compressor, the style of compressor and the compressor design:

• Compressor in single stage operating mode (style: S, M; compressor design: R, S); page 2,

• Compressor in single stage operating mode (style: M; compressor design: T); page 3,

• Compressor in single stage operating mode (style: M; compressor design: T; refrigerant CO2). page 4

• Compressor in single stage operating mode (style: M; compressor design: B); page 5,The instructions regarding the maintenance works to be performed on the compressor are described in theInstallation instructions for the compressor in the "CLEANING, SERVICING, MAINTENANCE" chapter.

Maintenance schedule | M SerieScrew Compressor Packages

GEA Refrigeration Germany GmbH | P_262511_1 | Generated 22.04.2015 1

Maintenance timing for compressor in single stage operating mode (style: S, M; compressor design: R, S)

Maintenance work

Point in time *)

Operating year after commissioning

500h 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.

Check/retighten screwed connectors X X X X X X X X X X X X X X X X

Checking of leak tightness X X X X X X X X X X X X X X X X

Checking of coupling X X X X X X X X X X X X X X X X

Measurement of axial play (HR) X X X X X X X X

Measurement of face gap (HR + NR) X X X X X X X

Checking of bearing noise X X X X X X X X X X X X X X X X

Checking of shaft seal(Shaft seal)

X X X X X X X X X X X X X X X X

Checking of check valve suction side X X X X X X X X X X X X X X X X

Checking and cleaning of suction filter X X X X X X X X

Style S:Checking of solenoid valve Vi-adjust-ment


Style S:Checking of movement of the Vi slide


Style M:Checking of solenoid valves of controlslide / control slide stop-adjustment


Style M:Checking of motion of control slide /control slide stop


Checking of alignment of position sen-sor X X X X X X X X X X X X X X X X

Changing of wear parts X

*) point in time:500 h = after 500 operating hours.1. = in the 1st operating year or after 5,000 operating hours, depending on which occurs first.2. - 15. = once annually or after further 5,000 operating hours respectively, depending on which occurs first.Further maintenance instants are reached after a further 5,000 operating hours or once annually, depending onwhich occurs first, with counting beginning from the first maintenance instant.


2 GEA Refrigeration Germany GmbH | P_262511_1 | Generated 22.04.2015

Maintenance timing for compressor in single stage operating mode (style: M; compressor design: T)

Maintenance work

Point in time *)


500h 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
















Changing of wear parts

*) point in time:500 h = after 500 operating hours.1. = in the 1st operating year or after 5,000 operating hours, depending on which occurs first.2. - 15. = once annually or after further 5,000 operating hours respectively, depending on which occurs first.Further maintenance times take place after further 5,000 operating hours respectively or once annually, depend-ing on which occurs first, beginning at the first counting of maintenance time.



mueller.ka

Schreibmaschinentext

x

mueller.ka


mueller.ka


mueller.ka


Maintenance timing for compressor in the single stage operating mode (style: M; compressor design: T; refrigerant CO2).

Maintenance work

Point in time *)


500h 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.




















Maintenance timing for compressor in single stage operating mode (style: M; compressor design: B)

Maintenance work

Point in time *)


500h 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.




















1.2 Maintenance works, maintenance timing for screw compressor packages

The maintenance works for the package listed in the following table are to be performed at least at the givenmaintenance times and in addition to the maintenance works on the compressor ().It is recommended that all maintenance works be performed throughout the entire run-time of the unit.

Hint!

The maintenance works performed require documented evidence during the warranty period.

The instructions regarding the maintenance works to be performed on the package are described in the operat-ing manual in the "CLEANING, SERVICING, MAINTENANCE" chapter.

Hint!

Follow the national directives applicable at the place of installation regarding the maintenanceand inspection of chillers.

Maintenance timing for screw compressor packages

Maintenance work

Point in time*)


500h 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.

Check/retighten threaded connections X X X X X X X X X X X X X X X X

Check/retighten the mounting bolts ofthe switching cabinet X X X X X X X X X X X X X X X X


Replacing the oil filter X X X X X X X X X X X X X X X X

Oil quality analysis (physico-chemical) /change oil X X X X X X X X X X X X X X X X

Checking of oil level / replenish oil X X X X X X X X X X X X X X X X

Inspect oil pump (coupling, gasket) X X X X X X X X X X X X X X X X

Checking of oil separator function, oilconsumption X X X X X X X X X X X X X X X X

Change oil separator cartridges1) X X


Gauging / alignment of the coupling2) X X X X X X X X X X X X X X X X

Check functioning of check valves X X X X X X X X X X X X X X X X

Checking of oil heater X X X X X X X X X X X X X X X X

Lubricate motor3) X X X X X X X X X X X X X X X X



Maintenance timing for screw compressor packages

Maintenance work

Point in time*)


500h 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.

Clean motor (outside) X X X X X X X X X X X X X X X X

Checking of tightening torque of the fas-tening bolts X X X X X X X X X X X X X X X X

Checking of the setting of the safetydevices X X X X X X X X X X X X X X X X

Checking of the safety pressure limiter X X X X X X X X X X X X X X X X

Checking of the emergency-OFF switch X X X X X X X X X X X X X X X X

Checking of the electrical connectionsof the control cabinet X X X X X X X X X X X X X X X X

Checking of the earthing connection X X X X X X X X X X X X X X X X

Checking of the start-up control X X X X X X X X X X X X X X X X

Measurement of power consumption at100% load X X X X X X X X X X X X X X X X

*) Point in time:500 h = after 500 operating hours.1. = in the 1st operating year or after 5,000 operating hours, depending on which occurs first.2. - 15. = once annually or after further 5,000 operating hours respectively, depending on which occurs first.Further maintenance times take place after further 5,000 operating hours respectively or once annually, depend-ing on which occurs first, beginning at the first counting of maintenance time.1) Change oil separator cartridges: in case of the doubling of the oil consumption, the oil separator cartridgesmust be changed outwith the specified intervals.2) Only for compressors without coupling housing, external inspection of the coupling hub.3) Lubrication intervals and amount according to motor documentation or motor type label.



1 MAINTENANCE SCHEDULE Documents/Grasso... · 1 MAINTENANCE SCHEDULE 1.1 Maintenance works,...

Documents

Transcript of 1 MAINTENANCE SCHEDULE Documents/Grasso... · 1 MAINTENANCE SCHEDULE 1.1 Maintenance works,...