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  –  After W  –  Weekly For readiness reporting Interval Procedures Equipment is not tern Item to be Check for and have repaired ready/available No. B    D   A W inspected or adjusted as necessary if: 23 R.O. Pump Motor Wipe motor with a clean cloth dampened with an ap- proved cleaning solvent (P-D-680). Check oil level and Iubri- cate in accordance with lu- bricating order, LO 10- 4610–215-12/Ll    08580A–12 Inspect for signs of over- heating or too much wear. NOTE A new pump may run hotter for a few days. Change oil before first startup; watch oil level during break–in  period. Listen  for  uneven,  knocking Motor makes un- sound. familiar sounds during  operation. 24 R.O. Pump drain Inspect drain tube end to Drain  clogged  and tube end ensure that drain is open. cannot  be  cleared. Open  restricted  drain. 25 R.O. Pump cavity Remove the wing nut and cover seals and plungers plate which are located at the top center of pump. Plungers equipped with rubber splash guards are now exposed. Using spanner wrench from storage box, tighten packing nut. Inspect R.O. pump cavity to Water level in R.O. make  sure  excessive  leakage pump cavity rises is not occurring: near plungers dur- ing operation. CAUTION Excessive leakage will contami- nate the oil and score the plungers. 2-24