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 er W  -  Weekly For readiness reporting Interval Procedures Equipment Is not Item Item to be Check for and have repaired ready/available No. B    D   A W inspected or adjusted as necessary if: Do not operate ROWPU with an open control box assembly; it can kill you. Inspect  the  plug  connectors, toggle switches, and lamps for loose mountings and bad parts. Replace lamps that don’t work. See that the junction box is securely mounted and kept closed. 20 R.O.  pump  drive Inspect belt guard for loose Belt guard off or belt  guard mounting bolts. Tighten all hanging. studs, nuts, and capscrews. 21 R.O.  Pump  drive Check all five V-belts for Belt tension re- belts cracks, rubbing, and signs quires adjustment; of wear. Check belt ten- belts are defec- sion: You should be able to tive. push belts down only a half- inch at center of span. 22 R.O. pump, wiring, Inspect wire connection go- motor  mounts, ing to junction box. ln- head  gasket spect the motor mounts for and  piping cracks or breaks. Look for dirt, corrosion, or water damage. Check for head gas- ket leaks and piping leaks. P–D-680 is potentially dangerous. Avoid repeated and prolonged breathing of vapors and skin contact with the liquid. Do not use near open flame, arcing equipment or other ignition sources. Always wear protective clothing  and  eyewear. 2-23