Porter-Cable 7814 Instruction Manual page 11

NOTE: A small sponge filter is located next to the top filter. This
filter helps to cool the motor. Check the filter on a regular basis. If it
is dirty, clean it by blowing dry compressed air through it.
DRY PICK-UP
smoldering, or smoking such as matches, cigarettes, or hot ashes.
Do not use to vacuum combustible explosive materials, such as
coal, grain, or other finely divided combustible material.
Do not use to vacuum hazardous, toxic, or carcinogenic materials,
such as asbestos, pesticide or lead-based paint debris.
The vacuum cleaner may be used to pick up dry material with or without a
dust bag installed. The dust bag provides a convenient method for disposing
of the material that is collected.
Always use a dust bag when collecting fine dust. The bag will reduce
clogging of the flat filter, and increase dust holding capacity.
WET PICK-UP
diesel fuel, heating oil, paint thinner, etc.), acids or solvents.
Always remove paper bag before picking up liquids or wet material. The
vacuum motor will shut off automatically when the container is full. Turn the
Vacuum Cleaner "OFF" before emptying container.
CIRCUIT BEFORE REMOVING POWER UNIT FROM CONTAINER.
The Model 7814 has a drain hose located at the rear of the container.
Remove the hose from its holder and point it downward to drain the
container (see Fig. 10).
Always clean and dry the interior of the container after using the machine for
wet pick-up. Also clean the two brass colored electrodes (see Fig. 11), on
the bottom of the motor unit. These electrodes are part of the low-voltage
system that stops the vacuum motor when the container is full of liquid or
wet material.
Do not pick up anything that is burning,
Never pick-up explosive liquids (e.g. gasoline,
DISCONNECT APPLIANCE FROM POWER
Fig. 10
11
A
Fig. 11