WASTE WATER EVACUATION TANK TRAILER
MOISTURE TRAP AND OIL CATCH MUFFLER
77W Water Treatment Specialist
Engine shut off
Ignition key removed
Emergency stop button pushed in
Emergency brake set
Protective clothing and equipment must be worn. A heavy-duty rubber apron,
rubber gloves, respirator, safety splash goggles and/or face shield are
required when potential exists for contact with wastewater or contaminated
surfaces. Wastewater and surfaces may be contaminated with pathogenic
microorganisms, bacteria or viruses, which present a risk of serious illness or
death to personnel. Refer to cleaning and sanitizing procedures in WP 0018
INSPECT (MOISTURE TRAP)
Inspect the moisture trap as described below. Describe any condition that must be reported to unit
maintenance on DA Form 2404.
1. Inspect the moisture trap body (figure 1, item 1) for damage, secure attachment to the tank bracket
(figure 1, item 2) and condition of pressure gage (figure 1, item 3). Report a damaged moisture trap
housing and/or pressure gage to unit maintenance. Replace missing, or tighten loose bracket nuts
and bolts (figure 1, item 4).
2. Visually inspect the drain valve (figure 1, item 5) for damage. Report a broken or bent drain valve to
3. Determine the condition and ensure secure attachment of the drain hose (figure 1, item 6). Replace
a missing or damaged drain hose as required.
4. Inspect the condition of the upper air hose (figure 1, item 7) and the pump air hose (figure 1, item
8). Ensure hose clamps (figure 1, item 9) are tight. Report a damaged air hose to unit maintenance.
Tighten hose clamps as necessary.
5. Ensure moisture trap cover (figure 1, item 10) is securely fastened to the body (figure 1, item 1) and
attaching hardware is in place and tight (figure 1, item 11). Report a loose lid or missing hardware to