20-Gallon
Self-Evacuating Portable
Oil Drain & Fluid Evacutor
Model JDI-20COMBO
Owner’s Manual
™
REV 10/31/17
151 Snyder Ave. www.johndow.com
Barberton, OH 44203 [email protected]
OPERATOR’S MANUAL JDI-20COMBO
Operation:
Troubleshooting:
3. Oil recovery with gravity systems:
a. To position the off-center oil collection pan in the desired position and
lock the tube with the screw.
b. When emptying the oil from the vehicle, open valve G. Open the air
valve E, close the discharge valve F, the oil flows into underlying tank.
(See Fig. 7)
c. Level indicator indicates the quantity of oil recovered in the tank.
IMPORTANT!
Never fill the tank over the maximum limit that can be seen on the
level indicator.
Close the upper ball valve and open the lower ball valve before
connecting the air supply. When the tank is empty, close air valve E
and disconnect the air supply.
(See Fig. 8)
IMPORTANT!
Do Not use air pressure in excess of 10 psi. The evacuator is fitted
with a safety valve calibrated at 20 psi.
Fig. 7
Fig. 8
For Service Assistance
Phone Toll Free 1-800-433-0708
www.johndow.com
THE MACHINE DOES NOT GENERATE A VACUUM
•
This could be due to insufficient pressure in workshop
compressed supply.
•
Use air pressure of at least 100-150 psi.
•
The vacuum meter is incorrectly calibrated (this can easily
happen due to impact or other events).
•
Replace it.
•
Valve should be open.
THE VACUUM METER NEEDLE DOES NOT MOVE
•
The vacuum meter could be broken (this can easily happen
due to impact or other accident).
•
The device functions all the same, try blowing in air fro 2-3
minutes and check if it works.
•
Remove the vacuum meter and check whether the air input is
clear.
•
The vacuum meter is incorrectly calibrated (this can easily
happen due to impact or other events).
•
Replace it.
•
Valve A should be closed.
THE MACHINE DOES NOT EXTRACT THE USED OIL
•
This ball valve on the extractor pipe is closed, open the valve.
•
This could be due to the oil being cold.
•
Bring the oil to a temperature of °F before extracting, always
extract oil with engine off.
•
This cause could be the probe touching the bottom of the
sump.
•
Lift the probe a couple of millimeters.
•
Check the probe.
THE MACHIN DOES NOT MAINTAIN VACUUM
•
The machine OR’s could be worn.
•
Check OR’s and replace if necessary.
•
The probe is broken.
•
Replace it.
