(3/8/11)
* unable to built up pressure during pump change over
* status after trial with coordinating electrical,mechanical and instrument team
- running pump 2A current 4.4 amp, pressure 38.30 kg/cm2, vibration normal,no sound
- pump 2B started at 09:41, current 4.3 amp, during both pump running pressure gradually increased up to 39.13 kg/cm2, vibration normal, no sound
- after taking trial for 10 minutes pump 2B stop at 09:51, pressured drop up to 37.25 Kg/cm2 (which is normal).
(DEH pump checking 7/3/11)
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| pump checking with open the venting plug and rotate manual the motor by hand, oil coming out normal |
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| take out the motor and checking condition of coupling, teeth of coupling & teflon still in good condition |
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| lift / take out the pump check all condition of connection and bolt also suction filter pump, all in good |
* after all checking than reassembly and trial, pressure ok, keep in stand by, with running pump 2A
* instrument replace pressure indicator with new one
MTC advice after checking:
" we suggest to electrical for tightening connection cable to the motor better use proper tools not tighten the nut with plier "
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