Hello everyone, I measured the vibration in the vertical direction of the electrical motor (1800 rpm) shown in the picture below. And the spectrum showed a high peak at exactly 1.5X. Someone could tell me what problem it should be? Thank youRead More...

I am a new user of MHM, and I am trying to make a backup of database in MHM v5.7 but appears several errors because zip tool could not found files *.mdb *.dbz. I have database in a folder named custdataPlant1 not in the default custdata. ThanksRead More...

Dear all We have an issue high vibration on BRG #2&3 , finish the Major Inspection on this unit when we start the unit , at FSNL ( 3000 RPM ) the vibration for BRG # 2&3 stable not exceed (6 mm/s ) , when the unit is loaded the vibration increase on BRG 2&3 Only , at full load the Vibration reach on BRG # ( 9- 13 mm/s fluctuating ) and BRG #3 ( 7- 8.5 mm/s ) , and in the MI inspection we made casing Alignment as recommended from manufacturer GE because when open the unit we found...Read More...

Hi, We have a issue on Bag Filter fan Drive Bearing, It has been running on high temperature for last month. Around 100 degree C. It was replaced before three months, After a right quantity of greasing its temperature remains high. I can see there is no High G's Value or early signs of bearing in a peakVue, Infact there is a little resonance ( wobbling ) in one belt. Bearing BPFO Peaks are not matching a little difference with matched lines, there is not high temperature on pulleys or shaft.Read More...

Dear All, I am Looking for CSI 404B Tachometer for Our 2130 Vibration Analyzer, If someone want to sale or any reference, Please let me know. Please see the attached file I have highlighted the items in yellow color, that's what I exactly need. ThanksRead More...

We have a vibration problem on the turbine gas. Vibration in the bearing casing has increased after 1.5 hours of operation from 4 mm / s to 8 mm / s, while the vibration shaft is constant 52 um. Request: If anyone has encountered same issue and has been able to solve, please help me with your valuable suggestions.Read More...

Increased vibration over time Hello experts A few days ago a bearing change was made and gas seal was connected to a centrifugal compressor, however, when the machine starts operating at a constant speed, the vibration values increase on the free and coupling side, it has been observed that the increase In the vibration values it is directly proportional to the temperature of the bearings, it is observed that the increase of the vibration at constant speed stops when the temperature becomes...Read More...

Hello Dear>> We have problem with turbine shell & exhaust frame blower motor ( 160kw,2975rpm) , MONTALY CHANGE BEARING OR MOTOR COIL DAMAGED , UP To now we change bearing for three motor and motor coil damaged for 2 motor > This including with GE TURBINE FRAM 9FA 265MW. On GE Frame 9FA turbines (265MW capacity) design is different: only one 1TK fan remains in service, the other one is standing by. In case that for the running motor (lead motor) any defect is detected (motor's...Read More...

Dear All, I have a case of high temperature issue at double helical gearbox which journal bearing temp of HSS increased to 103oC after 3 months and then fluctuated from 83 to 102oC. What done are: major maintenance for GB and revamping for Ammonia unit. It means the load increased 107-110% than normal. I summarized the information and my solution in slide. Hope to receive your discussion and any advice. Thanks & Regards,Read More...

Hi ! I need simple work instructions for Thermography inspection of Steam Straps Regards, VipulRead More...