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Figure 8-3.Single-arm trackway gravity davit.
Elevators

Engineman 2 - Intermediate engine mechanics training manual
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Figure 8-4.—Aircraft carrier weapons elevator. read  and  heed  any  of  the  safety  precautions  and warnings  like  the  following: WARNING Before  starting  disassembly  of  any  piece  of equipment, be certain the power is off and the switch is tagged. Do not re-energize any tagged circuit  until  safety  of  doing  so  is  definitely established. When you determine that a repair or replacement of part(s)  will  require  disassembly,  tag  the  system  out. Remove  any  interfering  guards  or  obstructions.  To reduce the chance of dirt and other contaminants from getting into the works as the parts are disassembled, you must take the time to properly clean the machinery. Keep the  dirt  out  of  open  gear  cases  and  be  sure  parts  are cleaned   before   reassembly.   If   the   oil   becomes contaminated, drain and flush the system with light oil and refill it with proper lubricant. Water in the oil will cause rust, and dirt can act as an abrasive to wear out the machinery. You must match marked parts that could be installed in more than one way so that you can return the machinery  parts  to  their  original  position. Components  like  winches  and  other  actuating machinery are covered in considerable detail by their manufacturer’s  technical  manuals.  Any  repairs  to  be 8-12







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