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Trouble Shooting and Failure Analysis |
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Lubrisolve Engineering Solutions Ltd can provide in-depth analysis of a lubrication problem and provide a solution tailored to your requirements.
This also extends to identifying the causes for a particular failure with the documented report detailing the recommendations for corrective action and solutions for future prevention. Such a report can be used in a Root Cause Analysis strategy.
The photograph above shows a large gearbox that suffered a catastrophic failure. The gears were splash lubricated from the 24.2 gallon sump and the bearings were fed via pipe work from an externally mounted electric motor and pump. The vertically mounted driving pinion gear, shown in the photograph below, was almost completely stripped of its teeth, and the mating gear set showed severe burring on the leading edges where the metal had been mechanically displaced by heat.
The cause of this failure turned out to
be low oil level. The photograph below shows the bottom half of the gearbox
with the arrow marking the approximate position of the correct oil level,
measured by a dipstick when the gearbox was inoperative. The position X
depicts the bottom of the lowest gear, and the position Y was the actual
level of the oil. A thorough investigation took place and a full report was
issued detailing the causes of the failure, the current lubricating regime,
as well as recommendations covering lubrication, maintenance schedules, and
operating procedures. This failure cost a large sum of money in lost
production alone.
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