THERMOJET
®
G3500E SERIES
OIL PURIFIER SYSTEM
INSTALLATION AND OPERATING MANUAL
Doc #
77740123
Rev
14
Date
June 2020
Page
77
of
104
Draining and Cleaning Procedures
Draining and cleaning procedures must be practiced if the ThermoJet is being used to remove water
contaminant in different type of oil and from different reservoirs. The following procedures are listed in order
of criticality. Depending upon any variety of individual situations, they may be either followed to conclusion,
modified as desired, or discontinued at any point.
1. Shut off the reservoir drain valve; energize the motor so that the major portion of oil in the system can
be pumped out within a few minutes. Piping must have an atmospheric vent in order for air to enter the
piping system. If the suction and the discharge hoses were attached to the portable unit, care must be
taken to ensure that oil in these lines are pumped out.
2. Remove the drain cap from the separation vessel and drain the oil into a suitable container.
3. To drain the oil from the filter housing, remove the air vent screw located on the top of the filter housing
to prevent siphoning of oil out of the heater tube. Then open the drain valve at the bottom of the filter
housing and allow the oil to drain into a suitable container.
4. To drain the heater vessel, open the drain valve and drain the oil into a suitable container.
5. Remove the oil filter element and install a new one.
6. Remove the screen from the Y-strainer and clean it.
7. If preparing the unit for use on a significantly different type of oil, perform one or all of the following
procedures:
•
Connect the ThermoJet to a small supply of the next oil to be purified (minimum 20 gallons), and
circulate the fresh oil to flush out the existing oil for a minimum of 15 minutes, or up to 60 minutes if
the ThermoJet is especially dirty.
•
Connect the system to a supply of compatible solvent (or other cleaning agent) and circulate to
flush for a minimum of 15 minutes.
NOTICE:
This procedure allows the pumps to run “dry”, but it will not
damage them since they are lubricated with the residual oil.
However, this procedure should not continue for more than a few
minutes because the pump requires inlet oil to lubricate and cool
the gears of the pump, and the operator should be in attendance to
monitor it while draining the equipment.
NOTICE:
For many situations the above procedures are adequate for
removing most of the oil from the system in order to prepare the
ThermoJet for use on similar or compatible oil..
Do not use flammable cleaning solvents to flush
this system. Failure to do so may result in
serious injury or even death
.
