WASTE WATER VACUUM TANK TRAILER
Tool Kit, General Mechanic's, Automotive (WP
MOS 77W, Water Treatment Specialist
Tank empty, at atmospheric pressure
Tank cleaned and sanitized
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
To replace the moisture trap, proceed as follows:
If moisture trap is being removed as part of the engine/vacuum pump skid removal,
perform only steps 1., 6., and 7., to remove it and steps 15., 16., and 22 to install.
1. Loosen the hose clamps (figure 1, item 1) on the pump air hose (figure 1, item 2) and upper air
hose (figure 1, item 3) and remove the hoses from the nipples (figure 1, item 4). Retain hose
clamps on the hoses.
2. Using a pipe wrench remove the nipples (figure 1, item 4) and elbow fittings (figure 1, item 5) from
the moisture trap. (The nipples and fittings may also be removed as an assembly, as required.