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Your lubrication problems

Your lubrication problems In each issue, this page will feature practical help and advice to maintenance engineers and others on their lubrication problems. Readers are invited to submit their queries, which will be answered by competent authorities. Sketches accompanying queries should be neatly drawn in clear ink for possible reproduction. Queries should be submitted to the Editor, Scientific LUBRICATION Information Bureau, Scientific Publi­ cations, Hampton Hill, Wellington, Shropshire. Nomme-de-plume may be used if wished but the name and address of the sender must accompany any correspondence. Replies will be sent by post to annual subscribers only and stamped addressed envelopes must be enclosed. QUESTION : We are told that it is dangerous to use condensation since we find the inside surfaces of the bed Heavy Duty oils unless the changeover is made under plate above the oil level, are quite rusty. Is there any strict supervision. Can you tell us what points should remedy for this and is it harmful to use the centrifuge be watched to ensure trouble-free running after such a continuously? (J.L., London). changeover. (An Oxfordshire Transport Co.). ANSWER : The bedplate needs better ventilation ANSWER : The main advantages of Heavy Duty but this cannot be achieved by just leaving the inspection covers open. Fit ventilating pipes in oils in automobile engines are due to their detergent each corner of the bed plate. If easier, drill and tap properties. These keep all solid matter in suspension in the oil and also have the initial effect of loosening the inspection covers for these pipes, but the corners such deposits if present. It is the latter which could of the bed plate are the worst offenders and the cause trouble by choking oil filters and oil pipes. ventilators should be near to them. Use one inch diameter pipe and bend the end round twice at right If the changeover can be made after the engine has angles, or fit two elbow joints to each. been overhauled, pistons drawn and cleaned, filters The best method is to fit three of these ventilators renewed, etc., there can bo no possibility of any and fit a fourth one with a small fan or blower to trouble. If, however, the changeover is made keep air circulating throughout the bed plate. between overhauls, the engine should be first flushed After fitting the ventilators be certain to clean out with a solvent typo of flushing oil that most oil the bed plate thoroughly and centrifuge the oil when companies will provide. This will free a lot of the it is expected that condensation will be considerably deposits and thus lessen the burden on the detergent reduced and probably eliminated. It will not then oil. Two flushings of approximately 15 min. each bo necessary to continuously centrifuge. A good with the engine running gently is the usual recom­ quality oil will stand a lot of centrifuging but con­ mendation. After flushing, clean the filter or fit a stant subjecting to atomisation in this way will tend new one. to cause more rapid oxidation. The first filling of detergent oil should be emptied much earlier than normally if the engine is thought to bo dirty, say at 500 miles. The second charge can QUESTION : Can you give us any references in be left for 1,000 miles and thereafter normal sump published literature to the maintenance of insulating changing periods can be resorted to. During the oils for transformers etc., with particular reference to first 500 miles, a watch should be kept on the oil methods of testing for acid. (S.L., London). filter which could get choked with deposits if the detergent oil i s functioning fully upon a dirty engine. ANSWER : J.Inst. Elec. Engrs., 1943, (Vol. 90(2), This is particularly important if the engine was not pp. 15-22). Paper by A. A. POLLITT discusses, inter flushed at the changeover and if it was known to be alia, the causes of deterioration in insulating oils. in a dirty condition. The same journal contains other articles dealing with I t will thus be seen that the precautions suggested transformer and insulating oils. J.Inst. Pet., July, 194G, (Vol. 32, No. 271.) This are important if the changeover is being made on contains eight papers covering a general discussion a dirty engine. on transformer oils. A brief review of the papers is contained in Petroleum for June and July, 1946. QUESTION : Our 3,000 kW turbo generator holds (Vol. IX, Nos. 6 and 7). its circulating oil in the bed plate from whence it flows Mechanical World, Apr. 25, 1947, Vol. 121, No. to the oil cooler and filler on the floor below and is 3145, and May 2nd, 1947, Vol. 121, No. 314G. Article pumped back to the bearings. We find considerable by W. FRANCIS on Recent Developments in the water in the oil, necessitating almost constant use of Technology of Lubricating and Insulating Oils the centrifuge. We have ascertained that the glands covering, inter alia, effects of oxidation, accelerated are in perfect order and that this water is caused by oxidation test, recovery of used insulating oils, etc. Scientific LUBRICATION 21 October, 1948 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Your lubrication problems

Industrial Lubrication and Tribology , Volume 1 (1): 1 – Jan 1, 1948

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0036-8792
DOI
10.1108/eb051979
Publisher site
See Article on Publisher Site

Abstract

In each issue, this page will feature practical help and advice to maintenance engineers and others on their lubrication problems. Readers are invited to submit their queries, which will be answered by competent authorities. Sketches accompanying queries should be neatly drawn in clear ink for possible reproduction. Queries should be submitted to the Editor, Scientific LUBRICATION Information Bureau, Scientific Publi­ cations, Hampton Hill, Wellington, Shropshire. Nomme-de-plume may be used if wished but the name and address of the sender must accompany any correspondence. Replies will be sent by post to annual subscribers only and stamped addressed envelopes must be enclosed. QUESTION : We are told that it is dangerous to use condensation since we find the inside surfaces of the bed Heavy Duty oils unless the changeover is made under plate above the oil level, are quite rusty. Is there any strict supervision. Can you tell us what points should remedy for this and is it harmful to use the centrifuge be watched to ensure trouble-free running after such a continuously? (J.L., London). changeover. (An Oxfordshire Transport Co.). ANSWER : The bedplate needs better ventilation ANSWER : The main advantages of Heavy Duty but this cannot be achieved by just leaving the inspection covers open. Fit ventilating pipes in oils in automobile engines are due to their detergent each corner of the bed plate. If easier, drill and tap properties. These keep all solid matter in suspension in the oil and also have the initial effect of loosening the inspection covers for these pipes, but the corners such deposits if present. It is the latter which could of the bed plate are the worst offenders and the cause trouble by choking oil filters and oil pipes. ventilators should be near to them. Use one inch diameter pipe and bend the end round twice at right If the changeover can be made after the engine has angles, or fit two elbow joints to each. been overhauled, pistons drawn and cleaned, filters The best method is to fit three of these ventilators renewed, etc., there can bo no possibility of any and fit a fourth one with a small fan or blower to trouble. If, however, the changeover is made keep air circulating throughout the bed plate. between overhauls, the engine should be first flushed After fitting the ventilators be certain to clean out with a solvent typo of flushing oil that most oil the bed plate thoroughly and centrifuge the oil when companies will provide. This will free a lot of the it is expected that condensation will be considerably deposits and thus lessen the burden on the detergent reduced and probably eliminated. It will not then oil. Two flushings of approximately 15 min. each bo necessary to continuously centrifuge. A good with the engine running gently is the usual recom­ quality oil will stand a lot of centrifuging but con­ mendation. After flushing, clean the filter or fit a stant subjecting to atomisation in this way will tend new one. to cause more rapid oxidation. The first filling of detergent oil should be emptied much earlier than normally if the engine is thought to bo dirty, say at 500 miles. The second charge can QUESTION : Can you give us any references in be left for 1,000 miles and thereafter normal sump published literature to the maintenance of insulating changing periods can be resorted to. During the oils for transformers etc., with particular reference to first 500 miles, a watch should be kept on the oil methods of testing for acid. (S.L., London). filter which could get choked with deposits if the detergent oil i s functioning fully upon a dirty engine. ANSWER : J.Inst. Elec. Engrs., 1943, (Vol. 90(2), This is particularly important if the engine was not pp. 15-22). Paper by A. A. POLLITT discusses, inter flushed at the changeover and if it was known to be alia, the causes of deterioration in insulating oils. in a dirty condition. The same journal contains other articles dealing with I t will thus be seen that the precautions suggested transformer and insulating oils. J.Inst. Pet., July, 194G, (Vol. 32, No. 271.) This are important if the changeover is being made on contains eight papers covering a general discussion a dirty engine. on transformer oils. A brief review of the papers is contained in Petroleum for June and July, 1946. QUESTION : Our 3,000 kW turbo generator holds (Vol. IX, Nos. 6 and 7). its circulating oil in the bed plate from whence it flows Mechanical World, Apr. 25, 1947, Vol. 121, No. to the oil cooler and filler on the floor below and is 3145, and May 2nd, 1947, Vol. 121, No. 314G. Article pumped back to the bearings. We find considerable by W. FRANCIS on Recent Developments in the water in the oil, necessitating almost constant use of Technology of Lubricating and Insulating Oils the centrifuge. We have ascertained that the glands covering, inter alia, effects of oxidation, accelerated are in perfect order and that this water is caused by oxidation test, recovery of used insulating oils, etc. Scientific LUBRICATION 21 October, 1948

Journal

Industrial Lubrication and TribologyEmerald Publishing

Published: Jan 1, 1948

There are no references for this article.