Page 577 - Subyek Teknik Mesin - Forsthoffers Best Practice Handbook for Rotating Machinery by William E Forsthoffer

Be st Practice 1 0.8 The Post-Shipment Phase: Installation, Pre-Commissioning, Commissioning and Start-up Best Practices

Table 10.8.2 Lube system check list (example)dCont'd
Item Description Specified value Actual value Witnessed by

6D. L.P. case seal oil differential valve PDCV. Supply N 2 press, of 241 Kpa _____
5PSIG at gas reference side of PDT and read differential press on
PDI
6E. HP case seal oil differential valve. Supply N 2 pressure of 30 PSIG at 241 Kpa
gas reference side of PDT and read differential press on PDI
7. Record the following:
7A. Pump disch. press on P.I. Approx. 2600 _____
7B. Oil temp. upstream on T.I. Less than 65 C _____

7C. Oil temp. downstream on T.I. 49
7D. Cooler/filter DP on PDI Less than
Switch transfer valve and record: 70 Kpa _____
Bank ‘A’ DP _____
Bank ‘B’ DP
7E. Lube press at console on P.I. ) Approx. 283 Kpa _____
7F. Control press at console on P.I. ) 1091 Kpa _____
7G. LP case on DP PDI 241 Kpad _____
7H. HP case on DP PDI 241 Kpad _____
7I. Lube press at unit on P.I. 124 to 138 Kpa _____
7J. Control press at unit P.I. 883 Kpa _____
7K. All ‘sight’ glasses show oil flow _____
7L. Lube oil head tank is full e _____
7M. Turbine accumulator press on P.I. ) Approx. 900 Kpa _____
) Adjust as required to attain proper values at the unit

8. Record seal oil drainer level for each drainer for one hour.
Drainer A 2 fills per hour _____
Drainer B _____
Drainer C _____
Drainer D _____

9. Switch transfer valve from ‘A’ to ‘B’ bank and observe press _____
fluctuation on P.I. and confirm that PSL does not actuate.

10. Bleed low side of filter switch PD SH and confirm PDAH actuates at 241 Kpa Rising _____
specified value.
11. Bleed pressure off PSL (low oil press) and confirm @ unit annun. PAL 90 Kpa Falling
actuates at specified value. Read P.I.
12. Increase temporary N 2 press on PDSL (L.P. case seal low DP alarm 207 Kpa Falling _____
switch) and confirm Annun. PDAL actuates at specified value. Read
PDI
13. Repeat above for PDSL (H.P. case seal low DP alarm) confirm Falling _____
Annun. PDAL actuates read on PDI
(see note 2)
14. Bleed pressure off PSL (low oil trip switch) and observe: 76 Kpa Falling ______
A. Annun. PALL functions Read PI
B. T&T valve closes
C. Valve rack closes

15. Increase temporary N 2 press on PDSLL (L.P. case seal low DP trip
switch) and observe that:
(see Note 2)
A. Annun. PDALL functions. Read on PDI 138 Kpa Falling ______
B. Action occurs as in 14 above

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