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TO START AND STOP THE DRYWALL SANDER (FIG. 5)
Be certain that the power circuit voltage is
the same as that shown on the
specification plate of the tool, and that the
switch is OFF (O). Connect the tool to the
power circuit.
The Drywall Sander is equipped with a
"rocker" type switch (H). The top end of
the switch button is labeled "O" (OFF),
and the bottom end of the button is
labeled "I" (ON). To start the sander, press
the bottom end of the "I" switch. To stop
the sander, press the top end of the "O"
switch.
SPEED CONTROL (FIG. 5)
The 7800 Sander is equipped with a variable speed control. Adjust the speed by
turning the control knob (I). The control knob is numbered "1" through "5". The setting
"1" is the slowest speed (approximately 1000 RPM) and "5" is the fastest speed
(approximately 2,000 RPM).
Use the higher speed settings for fast stock removal. Use the lower speed setting to
reduce removal rate for more precise control. The Model 7801 Drywall Sander has a
constant speed of 2,000 RPM.
BRUSH-TYPE SKIRT (FIG. 6)
A brush-type skirt (J) surrounds the abrasive
pad on the Model 7800. This skirt serves
two purposes:
•
It extends below the surface of the
abrasive pad to prevent the abrasive
from "gouging" the work.
•
It helps contain the drywall dust until
the vacuum cleaner pulls it away.
Replace the skirt if it is damaged or if it is
worn excessively. Replacement skirts are
available from any PORTER-CABLE Service
Center.
Since the Model 7801 requires no vacuum
cleaner, the skirt is shorter, but still prevents
"gouging".
(FIG. 6)
TO REPLACE A SKIRT
To reduce the risk of injury, turn unit off and disconnect it from
power source before installing and removing accessories, before adjusting or
when making repairs. An accidental start-up can cause injury.
1.
Remove abrasive pad (see Abrasive Pad Replacement).
2.
Use a cross head screwdriver to remove the six retaining screws (K).
3.
Lift the skirt out of housing.
4.
Position the new skirt to the housing and install the six retaining screws.
5.
Replace the abrasive pad.
SANDING DRYWALL (FIG. 7, 8, 9)
The Drywall Sander has an articulating sanding head. The head can swivel in multiple
directions, allowing the abrasive pad to conform to the work surface. This action
enables you to sand the top, middle, and bottom of a wall or ceiling joint without
changing position.
FIG. 5
I
FIG. 6
10 - ENG
H
J
K
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