stinkycat
Well-Known Member
Had large turbocharged marine engines and if they set for a very long time we could have some bearing problems not often but there was other machinery running ie, fire pumps that over time would or could cause bearing failure. We would spin the propeller shaft so they wouldn't set in the same position. On some of the steam powered ships I was on when at anchor our plants were in stand by we spin the steam turbine every 15 to 30 minutes to keep the turbine rotors straight. Welding was another problem the arc welders were grounded to the hull and you only had a positive lead so you could arc across bearings out come pitted shafts and bearings. You had to be sure your machinery grounds were good.
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