More than 37,700 water meters and 180 engines and pumps were overhauled during the year. Details of other works carried out in the workshops, meter repair shops and by this Division generally are given in Appendix CC.
Operations and Maintenance
11.57
The number of operators on shift work in pumping stations was reduced to the absolute minimum, and staff were discouraged from taking leave, in order to keep overtime payments to the lowest possible level. Maintenance of pumping equipment, with the exception of diesel engines and plant associated with supplies from China, was based on breakdown repairs. These measures were taken throughout the financial year in view of the restrictions on both recruitment and replacement of staff due to wastage and in the light of the need to reduce overtime expenditure.
11.58
Statistics at Appendix CC show that diesel engine overhauls have not increased appreciably. This is due to continuing regular maintenance routines established over many years. However, compared with 1974/75, there was a 76% increase in the number of pump overhauls and a 60% increase in the number of other repairs or works. In 1973/74, the total of the latter was 236. This year it has risen to 1,155, which represents a nearly fivefold increase. Careful analysis of the statistics revealed that frequent breakdowns and excessively high maintenance expenditure occurred and the need to revert to normal levels of operation and maintenance became abundantly clear.
11.59
An obsolete salt water pumping station at Chai Wan was removed from service and replaced by a new pumping station of increased capacity. The Victoria Road Booster Station became redundant by re-arrangement of supply zones and the plant was removed and installed to provide standby capacity at Chai Wan North Fresh Water Pumping Station. A small automatic unattended pumping station at Ma Wo Che, for the supply of a minor area at Sha Tin, was commissioned and taken over for maintenance.
11.60
At Tai Po Tau Pumping Station, an additional pumpset was taken over for local supply to the Sheung Shui/Tai Po area.
11.61
The inability of Cheung Sha Wan Salt Water Pumping Station to meet the increased demand for flushing water in the Kowloon South area required the installation of a temporary pumpset of 9,092 cubic metres per day capacity to be installed at Yau Ma Tei Pumping Station pending more permanent works at Cheung Sha Wan.
11.62
Failures of the peripheral carriage wheels of the 181,840 cubic metres per day accelators at Sha Tin Treatment Works persisted throughout the year. The failures were finally traced to faulty track laying. Re-surfacing was in progress. Similar defects at Tai Po Tau Treatment Works, albeit on a minor scale, were successfully rectified.
Page 144
More than 37,700 water meters and 180 engines and pumps were overhauled during the year. Details of other works carried out in the workshops, meter repair shops and by this Division generally are given in Appendix CC.
Operations and Maintenance
11.57
The number of operators on shift work in pumping stations was reduced to the absolute minimum, and staff were discouraged from taking leave, in order to keep overtime payments to the lowest possible level. Maintenance of pumping equipment, with the exception of diesel engines and plant associated with supplies from China, was based on breakdown repairs. These measures were taken throughout the financial year in view of the restrictions on both recruitment and replacement of staff due to wastage and in the light of the need to reduce overtime expenditure.
11.58
Statistics at Appendix CC show that diesel engine overhauls have not increased appreciably. This is due to continuing regular maintenance routines established over many years. However, compared with 1974/75, there was a 76% increase in the number of pump overhauls and a 60% increase in the number of other repairs or works. In 1973/74, the total of the latter was 236. This year it has risen to 1,155, which represents a nearly fivefold increase. Careful analysis of the statistics revealed that frequent breakdowns and excessively high maintenance expenditure occurred and the need to revert to normal levels of operation and maintenance became abundantly clear.
11.59
An obsolete salt water pumping station at Chai Wan was removed from service and replaced by a new pumping station of increased capacity. The Victoria Road Booster Station became redundant by re-arrangement of supply zones and the plant was removed and installed to provide standby capacity at Chai Wan North Fresh Water Pumping Station. A small automatic unattended pumping station at Ma Wo Che, for the supply of a minor area at Sha Tin, was commissioned and taken over for maintenance.
11.60
At Tai Po Tau Pumping Station, an additional pumpset was taken over for local supply to the Sheung Shui/Tai Po area.
11.61
The inability of Cheung Sha Wan Salt Water Pumping Station to meet the increased demand for flushing water in the Kowloon South area required the installation of a temporary pumpset of 9,092 cubic metres per day capacity to be installed at Yau Ma Tei Pumping Station pending more permanent works at Cheung Sha Wan.
11.62
Failures of the peripheral carriage wheels of the 181,840 cubic metres per day accelators at Sha Tin Treatment Works persisted throughout the year.
The failures were finally traced to faulty track laying. Re-surfacing was in progress. Similar defects at Tai Po Tau Treatment Works, albeit on a minor scale, were successfully rectified.
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