Item No. 11 12 13 14 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 Interval B A W — Item to be inspected Chemical feed equipment: plastic pails, tubes, and strainers  and chemical cans Chemical feed pump Chemical  feed pump motor Chemical  feed pump priming valves Procedures Check for and have repaired or adjusted as necessary Inspect container/rack, pails/cans and tubes for cuts, cracks or holes. Inspect during operation for leaks Inspect strainer for clogging. After operation, drain and clean pails, tubes and strainers and chemical  cans. Inspect for loose mounting nuts. Inspect  for  cracked  or  broken fitting. Check oil level before oper- ation. Add oil as necessary. Refer  to  LO  5461  0–215-12/ LI  08580A–12. Listen for unusual noises during operation. Notify unit maintenance to replace malfunctioning pump. For sight glass location and oil filling instructions,  see lubrication order LO 10– 4610-215-12/Ll  08580A–12 Check for loose mounting nuts and bolts. Look for loose wires at conduit box. Listen for unusual noises during  operation. Notify unit maintenance to replace malfunctioning motor. Inspect for broken or missing pipe  nipples. Check for free operation of valve  handles. Check for chemical corrosion. For  readiness  reporting Equipment is not ready/available if: Pails/cans are so damaged that they will not  hold  chemicals Tubes will not draw chemicals into the pumps. Any one of the four pumps will not  supply  chemical to the purification cycle. Motor will not operate. Valves will not prime chemical feed pump. 2-21 D