USG Manufactured Housing Handbook User Manual

Page 19

Avoid twisting the taping tool. As
soon as possible, begin operating the
tool at a 45° angle to the joint. This
will help prevent tape “creeping.”

Corner Roller

After joint tape and compound have
been applied to an inside angle (cor-
ner), the corner roller is used to
embed the tape firmly into the com-
pound. The rollers in the tool embed
and smooth the tape while forming a
sharp corner.

For best results, start in the middle of
the joint and work toward both ends,
using light pressure. Then repeat the
procedure using firm pressure. This
will force the excess compound from
under the tape, preparing the angle
for the corner finisher.

Corner Finisher or Angle Head (With
Pole Handle)

The corner finisher, also known as an
angle head, is used to smooth the
compound in a corner, leaving a uni-
form finish. This tool is designed to
wipe down and feather both sides of
an angle in one pass. It is used after
the corner roller to wipe down the
excess compound left when the tape
is embedded.

To use the corner finisher, you must
first attach it to the detachable pole
handle. If necessary, set the fin-
isher’s spring tension.

To smooth compound over the tape,
seat the tool at the beginning of the
joint. Applying firm pressure, move
the tool along the joint. Make sure
that the open end is pointing in the
direction of movement, and that the
handle leads the corner finisher.

After using the corner finisher, you
should detail corner and ceiling angle
intersections using a drywall knife.

The corner finisher or angle head is
also used in conjunction with the cor-
ner pump or angle applicator to apply
a finishing coat over the angles.

Banjo

This tool offers an alternative method
of applying tape and compound. It is
simpler to use and less expensive
than the automatic taping tool.

The banjo has a hinged side panel
for hand-loading compound into the
tool, and an adjusting slide to control
the amount of compound dispensed
onto the tape.

To apply tape, hold the banjo with
one hand while pulling tape through
the tool with the other hand.

As the tape emerges from the banjo,
compound will adhere to one side.
Lay the compound-covered side
against the joint while continuing to
pull tape through the banjo as you
move the tool along the wall.

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Always run the taping tool at a slight
angle, with only one wheel resting on
the surface. If both wheels contact
the surface, compound will drip from
the sides of the tape.

After applying tape and compound
with an automatic taping tool, always
wipe down the joint manually using
the appropriate drywall knife. This
will ensure that the tape is flat and
securely embedded.

Tips
To get the feel of the automatic tap-
ing tool, run it first without com-
pound. This makes the tool lighter,
and allows you to practice the cutting
operation. It is important to stop
movement of the taping tool com-
pletely during cutting (if you don’t
stop completely during both strokes,
the blade will jam the tape). If a tape
jam does occur, it will be much sim-
pler to remove without compound.
Practicing the unjamming process
without compound will make it easier
for you to unjam the tape during reg-
ular operation.

It is best to tape the butt joints first,
then the tapered joints, and finally
the inside corners.

Vertical Joints
To tape a vertical joint, place the tap-
ing tool at the bottom of the joint,
parallel to and slightly above the
floor. Lead with the head of the tap-
ing tool as soon as possible to make
tracking easier. Remember to roll
with only one wheel in contact with

the wall until about 3

Љ from the top.

Stop completely, cut the tape, and
roll to the end of the joint on both
wheels.

To start the next joint, move the drive
wheels against the surface of the
wall, starting the compound flow,
while advancing the tape with the
control tube.

Horizontal Joints
To tape horizontal joints, advance the
joint compound and about 1-1/2

Љ of

tape by pushing forward on the con-
trol tube while rolling the drive
wheels on the wall.

Roll along the joint, stopping about 2-
1/2

Љ from the end of the joint; cut the

tape. Roll out the last 2-1/2

Љ of tape

while feeding tape with the control
tube. This will apply compound to the
beginning of the tape for the next
joint.

Ceilings
For ceilings, use both drive wheels for
the first 4

Љ-6Љ of tape to secure it to

the ceiling. Then tilt the automatic tap-
ing tool toward you at a slight angle,
leaving only one drive wheel on the
drywall surface. Walk backwards,
leading with the head of the tool.

Inside Corners
To tape inside angle joints, position
the taping tool so that it bisects the
angle, with both wheels running in
contact with the adjacent wall sur-
faces. Move the taping tool in a
straight line with the creaser wheel
extended (use the trigger located
near the trailing end of the automatic
taping tool). The extended creaser
wheel pushes the tape securely into
the angle.

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