TM    10-4610-215-10 TM  08580A-10/1 Table   2-3.   Operator/Crew   Preventive   Maintenance   Checks   and   Services (Unit)   (Continued) B   -   Before D   -During A - A f t e r W  -  Weekly For readiness reporting Interval Procedures Equipment Is not Item Item to be Cheek for and have repaired ready/available No. B    D   A W inspected or adjusted as necessary if: 37 Circuit breakers Inspect  for  cracked  or  broken Any circuit breaker parts. Before connecting is damaged or will generator set, check for free not move easily movement of handle. Inspect for signs of burning or  arcing. 38 Water  testing Check for cracked or broken equipment: glass. Check to see that all lab beaker, markings are readable. Re- graduated   cylin- place damaged items. der,  solution indicator,  ther- mometer CAUTION When checking rupture disc, do not overtighten the hold down screw. Finger tighten and then tighten 1/8 turn with wrench. 39 Rupture  disc Before operation make sure A rupture assembly an intact rupture disc is not in place. place. Check for leaks around There is leakage rupture  disc  assembly. around rupture disc seat. 40 Pulse dampener Inspect for broken, rusted, There is any dam- or missing mounting hard- age to weldment. ware. Check for cracks on weldment. Inspect for leaks. 41 High-pressure Inspect for rust. Check for There is leakage relief  valve leakage at base of relief at relief valve valve. union to pipe. 2-27