| Ref No. | Title | Engine Type | Issued Date | Attachment | | | | | | |
| HGS-HSM-SL-21-002 | Dicontinuation of Governor Products(Woodward) | HiMSEN H32,H32P,H32V | 2021-01-29 |  | GAE2021010002 | Dicontinuation of Governor Products(Woodward) | 51085995 | HGS-HSM-SL-21-002_Discontinuance of Governor Products (Woodward) F.pdf | http://eas.hhishipas.com/attach/2021/01/5108599501.pdf | |
| HGS-HSM-SL-21-001 | Improvement of safety function for DF Engine | HIMSE DF | 2021-01-05 | | GAE2021010001 | To whom it may concern,
This letter intends to inform operators of HiMSEN DF engine of safety function update in Diesel mode.
HiMSEN DF engine has additional sensors, comparison with conventional diesel engine, like cylinder pressure/vibration sensors. Those sensors are installed for safety functionality of gas mode. By applying those sensors to diesel mode also, we have improved the stability of operation. To apply this update to delivered engines, please contact us for service arrangement.
For more information, please refer to the attached technical circular, TEC2020-K2J0-YO-006-R0. Should you have any queries, please feel free to contact us.
| 51065145 | HGS_HSM_SL_21_001_IMPROVEMENT OF SAFETY FUNCTION for DF ENGINE.pdf | http://eas.hhishipas.com/attach/2021/01/5106514501.pdf | |
| HGS-BWTS-SL-20-001 | BWTS - The Notice of Revised Maintenance Manual for Electrolyzer | BWTS MAINTENANCE MANUAL | 2020-12-23 | | GAE2020120002 | Dear Our Valued Clients,
Recently, HiBallast’s maintenance manual has been revised and please find the attached document about Updated Maintenance Procedure for an Electrolyzer, which is to inform you how to maintain and clean an Electrolyzer.
We hope our guidance will be of service to you.
Enclosure
1) HGS-BWTS-SL-20-0001 : The Notice of Revised Maintenance Manual for an Eletrolyzer
2) The Revised Maintenance Manual (For Reference Only) | 51057054 | HGS-BWTS-SL-20-0001 BWTS (The Notice of Revised Maintenance Manual for Electrolyzer).pdf | http://eas.hhishipas.com/attach/2020/12/5105705401.pdf | |
| HGS-MAN-SL-20-010 | Top Controlled Exh. Valve (TCEV) | TECV, MAN, G90, G95 | 2020-11-23 | | GAE2020110001 | To whom it may concern,
For your guidance, we enclose a copy of the following Circular Letter;
CL23949-2020 dated October 2020
Top Controlled Exh. Valve (TCEV)
- HPS start-up pressure difficulties
Action Code: WHEN CONVENIENT
| 51033184 | HGS-MAN-SL-20-010 Top Controlled Exh. Valve (TCEV).pdf | http://eas.hhishipas.com/attach/2020/11/5103318401.pdf | |
| HGS_HSM_SL_20_007 | Adjustment of Valve clearance | valve clearance | 2020-10-28 | | GAE2020100002 | To whom it may concern,
Recently we’ve experienced that the intake valve clearance exceeded the specification. According to the onboard inspection, we found the intake valve clearance was improperly adjusted due to DVT application.
In case of DVT application, the valve clearance could be adjusted improperly due to the spring inside of DVT. In this regard, non-adjusting side of intake rocker arm should be fully compressed several times.
For more details, please refer to the attached technical information, TEC2020-K2D0-010-YOP-R0.
Should you have any queries, please feel free to contact us.
Faithfully yours, | 51016482 | HGS_HSM_SL_20_007_Adjustment of Valve clearance.pdf | http://eas.hhishipas.com/attach/2020/10/5101648201.pdf | |
| HGS-MAN-SL-20-009 | Load-up program | MAN, LOADUP, LOAD-UP PROGRAM | 2020-10-26 | | GAE2020100001 | To whom it may concern,
For your guidance, we enclose a copy of the following Service Letter;
SL2020-705/JAP dated October 2020
LOAD-UP PROGRAM
- Update of load-up recommendations in SL09-503/JAP
Action Code: WHEN CONVENIENT
| 51014001 | HGS-MAN-SL-20-009 Load-up program.pdf | http://eas.hhishipas.com/attach/2020/10/5101400101.pdf | |
| HGS-MAN-SL-20-008 | Third-party spindle guides and nozzles | MC/MC-C, ME/ME-C, fuel nozzle, Third party | 2020-09-04 | | GAE2020090001 | To whom it may concern,
For your guidance, we enclose a copy of the following Service Letter;
SL2020-701/KNB dated August 2020
Third-party spindle guides and nozzles
- increased risk of scavenge space fire
Action Code: IMMEDIATELY | 50980271 | HGS-MAN-SL-20-008 Third-party spindle guides and nozzles.pdf | http://eas.hhishipas.com/attach/2020/09/5098027101.pdf | |
| HGS-SCR-SL-20-007 | Air filter maintenance for MES 1001 NOx sensor | NOx sensor | 2020-08-28 | | GAE2020080001 | To whom it may concern,
As the number of delivered NoNOx SCR is getting increased, NOx sensor(MES 1001, Danfoss IXA) claims have been reported, especially UV lamp contamination.
Recently, we investigated NOx sensor completes considered as UV lamp contamination and found that interior of the sensor showed signs of missing maintenance, excessive amounts of oil on the cooler(picture 2&3 marked with red arrow on picture 2), on the inside of the backend(picture 4&5 marked with read arrows), on the pneumatic air distributor block and on the inside of compressed air tubes.
It was revealed that the oil penetration could occur by air filter element which was not replaced periodically as per the maker’s maintenance plan. Since the oil penetration could bring an uncertainty regarding uptime operation since the oil could result in future malfunction of the sensor, we strongly recommend the vessel to replace air filter element at least every half year(table. 1).
| 50975541 | HGS_SCR_SL_20_007_Air filter maintenance for MES 1001 NOx sensor.pdf | http://eas.hhishipas.com/attach/2020/08/5097554101.pdf | |
| HGS-MAN-SL-20-007 | Support bolts for EGR cooler | MAN EGR Cooler | 2020-07-31 | | GAE2020070002 | To whom it may concern,
For your guidance, we enclose a copy of the following Circular Letter;
CL21144-2020 dated July 2020
Support bolts for EGR coolers
Action Code: When Convenient | 50957238 | HGS-MAN-SL-20-007 Support bolts for EGR coolers.pdf | http://eas.hhishipas.com/attach/2020/07/5095723801.pdf | |
| HGS-SCR-SL-20-006 | 40% urea solution quality for NoNOx SCR system | UREA | 2020-07-22 | | GAE2020070001 | To whom it may concern,
As the number of delivered NoNOx SCR is getting increased, we have received several queries for NoNOx SCR, especially the quality of 40% urea solution.
This letter is to inform the customers of the allowable urea concentration of 40% urea solution and of precautions for quality control.
For more details, please refer to the attached technical information, TI2020-K2F0-005-R1.
Should you have any queries, please feel free to contact us.
Faithfully yours,
| 50953072 | HGS_SCR_SL_20_006_40% urea solution quality for NoNOx SCR system.pdf | http://eas.hhishipas.com/attach/2020/07/5095307201.pdf | |