Rev. 3F Aug 2020
P/N 77740213
Page
8
resulting supply mist pressure should be approximately 30 - 55 inches of H
2
O. Most typical mist supply pressures will be 35 - 45
inches of H
2
O.
During the first 24 hours of operation, the oil level in the reservoir will drop. This is a result of the internals of the supply tubing
and bearing housing and the stripping filter becoming “wet” with oil. Add lubricant as necessary to bring the oil level to the normal
operating level. When adding lubricant, the air supply to the unit should be closed, preferably using the user installed valve so
that there is no need to readjust the air supply with the pressure regulator.
Trouble Shooting
The operation of the LubriMate
®
has been reduced to checks of the generator and the lubricated equipment. Except for
emergencies, routine adjustment of the generator is not required. The LubriMate
®
, once installed and balanced, supplies a
constant amount of oil mist to all lubrication points.
Any change in the supply mist pressure, return pressure, or regulated air pressure (inlet air supply pressure) from initial set points
is an indication that some mist system component or compressed air supply system may have malfunctioned. Adjustments of the
controls to offset the failure symptom may lead to more serious problems before correction of the root cause can be made. If mist
generation is sporadic, seems to fluctuate or is non-existent, check the following:
1.
Check reservoir oil level and add if necessary. The operating oil level should be between the “full” and “add oil” marks on
the oil level sight glass.
2.
Remove and check the oil suction screen for plugging or restrictions. Clean and replace as needed.
NOTE:
In order to check the oil suction screen, it is necessary to shut down and restart the LubriMate
®
.
3.
Verify that the LubriMate
®
is operating within the recommended minimum operating temperature (see page. 6). Variations
in output are directly affected by changes in oil viscosity due to temperature changes.
4.
Verify that minimum airflow requirements through the mist generator have been established. See Section “Maintaining
Minimum Air Flow to the LubriMate
®
” for instruction.
5.
Check the mist supply pressure by making a visual check of the mist pressure gauge. Normal operating pressure is 20-35
inches of H
2
O. Change in the mist supply pressure should not be corrected by adjusting the regulated air supply. Changes
in mist pressure are most likely caused by situations external to the oil mist generator. The following should be
investigated:
5.1. Low mist pressure may indicate a leak or loose connection in the supply tubing, a missing application fitting or a
broken line.
5.2. High mist pressure may indicate plugged application fitting, or a restricted bearing housing vent or drain line.
5.3. No mist pressure could indicate loss of air supply to the mist generator. Check the inlet air supply.
5.4. Surging mist pressure usually is caused by an oil pocket or trap in the distribution header or fluctuating air supply.
6.
Check the return mist pressure gauge.
6.1. If the return mist pressure is set too low (due to insufficient vacuum or when a positive pressure exists), inefficient or
ineffective air stripping will result. Adjust if necessary, and recheck mist supply pressure. See start-up procedures for
system adjustments.
6.2. Low return mist pressure (vacuum) may be caused by plugged or restricted return lines. Check all return tubing lines
for low pockets that might trap oil or kinks that can restrict flow. Repair or correct as necessary.
Re-Start Procedure:
A gurgling noise or puffs of visible mist being heard or observed from underneath the
demisting filter is caused by inadequate pressure to the demisting filter assembly.
This may be accompanied by a noted positive pressure on the return mist pressure
gauge. To correct, increase the air supply pressure by adjusting the air pressure
regulator. Turn the adjusting knob clockwise to increase the air pressure until the
return mist pressure gauge reads +0.5 inches of H
2
O. Allow the LubriMate
®
to operate
until the mist supply pressure returns to a constant vacuum of +0.4 to +0.5 inches of
H
2
O. Readjust the air pressure regulator by turning the knob counter-clockwise until
the normal return mist pressure of -0.10 to -0.15 inches of H
2
O is reestablished.
6.3. Insure that minimum airflow requirements are being maintained. See the section titled
Maintaining Minimum Air Flow
to the LubriMate
®
.
Adjust if necessary, and recheck mist supply pressure. See start-up procedures for system
adjustments.
7.
Insure that the bulls eye sight glass on the front of the LubriMate
®
is clear and that oil is not accumulating in the chamber
behind the glass.
7.1. Check the return mist pressure adjustment. Insufficient airflow through the air stripper may be inadequate to purge
the returning liquid oil into the oil reservoir. Adjust if necessary.
7.2. Check the return orifice located behind the bulls eye for plugging or restriction.
NOTE:
In order to check the orifice, it is necessary to shut down and restart the LubriMate
®
.
CAUTION:
Do not adjust the air stripper control valve so as to achieve return mist pressure that is in
excess of -0.15 inches of H2O (vacuum). Improper adjustments may draw outside air and
contamination into the machinery bearing housings and the LubriMate
®
Lubrication System.
