Table 4-1. UNIT PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS)
Item to be
Check the tank for leaks, dents, cracks, or breaks.
Tank has leaks,
Check for ruptures in the welded seams. Check the
cracks or breaks.
interior of the tank for dirt or contamination. Repair
leaks, dents or other damage. Replace a badly
damaged tank. Purge and clean.
Check all bolts and nuts for tightness. Check for dents,
Bolts and nuts
cracks or breaks. Check gaskets for wear and darnage.
are loose or missing.
Replace defective cover gasket. Repair or replace
Cracks or breaks
defective manhole cover and filler cover.
exist. Cover gasket,
manhole cover or
filler cover are de-
Check drain valve or drain plug for leaks or damage.
Control handle is
Check control handle for binding or damage. Replace
damaged control handle. lighten or replace a leaking or valve or drain plug
damaged drain valve or drain plug.
leaks or is damaged.
Check the emergency dump valve for leaks or damage.
Check the valve strainer screen for residue. Check the
valve leaks, valve
valve mounting gaskets for wear or damage. Check the
mounting gaskets or
control lever for binding or damage. Replace or repair
control lever are
damaged valve or control lever. Clear the valve strainer
and replace damaged gasket.
strainer has residue,
gasket is damaged.
Inspect hoses for leaks, breaks, cuts or worn areas and
Hoses, fitting or
defective gaskets. Replace damaged hoses, fitting or
damaged or defec-
Inspect cable for frayed, worn or corroded condition.
Cable is missing
Replace defective cable.
Inspect the nozzle for leaks, distortion and corrosion.
Nozzle leaks or is
Replace or repair a leaking or distorted nozzle. Clean