Black & Decker 446033 - Manuel (Page 3)

NOTES THE FOLLOWING INFORMATION COVERS
VARIOUS CONSTRUCTIONS OF
BLACK & DECKER TOOLS. PLEASE
SELECT THE APPROPRIATE INSTRUCTIONS
FOR YOUR MODEL TOOL.
SWITCH OPERATION
PADDLE SWITCH (FIG. 1)
To start the .grinder, slide the paddle to the rear of the
tool while you are depressing It at the same time. To turn the
tool off, release the paddle. The switch can be locked on by
engaging the lock button located near the rear of the tool
while holding the paddle depressed. Always be sure that the
tool is QM locked on before plugging the tool in. To turn the
tool off when It is locked on, squeeze and release the paddle
once.
TRIGGER SWITCH (FIG. 2)
The “ON-OFF” switch is operated by depressing and
releasing, the .trigger switch. Depressing trigger turns the tool
“ON”-Releasing it turns the tool “OFF”. To Jock the switch
“ON”, depress the trigger fully, press and hold In the locking
button, and release trigger switch. Release locking button
and tool will stay “ON”. To then turn tool "OFF”, depress and
release trigger switch.
CAUTION: Grasp tool firmly with both hands before starting
tool.
SLIDE SWITCH (FIG. 3)
TO LOCK. SWITCH ON-Push'button with a forward and
downward motion and release. Switch Is locked on
automatically.
TO RELEASE, OR SHUT TOOL OFF-Push slide bar forward
and release as shown. (FIG. 3)
On other Portable and Die Grinders, TOGGLE, ROCKER or
SLIDE SWITCHES are used. In all cases the “ON” or "OFF”
positions are marked on the switch housing.
TO INSTALL AUXILIARY HANDLE
(FIG. 4)
An auxiliary handle Is furnished with your grinder and can be
installed on either side of the front housing. This handle-
SHOULD BE USED AT ALL TIMES To maintain complete
control of the tool.
SANDING WITH ABRASIVE DISCS
(FIG. 5)
To install Sanding Discs:
Be sure that the tool is unplugged. Push the hub of the Disc
Nut through the center of the Sanding Disc, as far as it will go,
and also through the Backing Disc. Put the Disc Backup on
the tool spindle where required. Engage the Disc Nut Hub
with the tool spindle and thread the assembly clockwise,
completely down on the spindle. Hold the spindle with a
wrench, or engage the lock pin if your tool is equipped with
one.
When using an abrasive disc, hold the tool so that an angle of
10° to 15° exists between the disc and the work. If only the
outer edge of the sanding disc is used a rough cut surface
will result. If the sanding disc is pressed flat against the work
the sanding action will be irregular and bumpy, and the tool
will be difficult to control.
14
REMOVING DISC (FIG. 6)
Using a cloth or glove to protect your hand, turn the disc
assembly counter-clockwise to remove it from the tool
spindle. Hold the spindle with a wrench or engage Lock Pin.
GRINDING WITH DEPRESSED-
CENTER WHEELS (ANGLE GRINDERS
ONLY) (FIG. 7)
Depressed center wheels may be used for moderate metal
removal on flat or contoured surfaces.
CAUTION:
Never use Depressed Center Wheels without the proper
guard.
To install Depressed Center Wheels:
1. Be sure tool Is disconnected from power supply and switch
is in “OFF” position.
2. Be sure the guard assembly is securely attached to the
spindle housing.
3. Put the backing flange onto the tool spindle.
4. Check rated speed on depressed center wheel. Never use
wheel with rated speed lower than the speed on the name­
plate of the tool.
5. Place the Depressed Center Wheel on the tool spindle.
6. Thread the Clamp Washer on tool spindle, hold the tool
spindle by engaging the Lock Pin, and tighten Clamp
Washer with Spanner Wrench.
When using a Depressed Center Wheel, hold the tool so that
an angle of approximately 30° exists between the wheel and
the work.
V\^IRE BRUSHING
1. Disconnect tool from power source. Rest Grinder on its
back with spindle facing up.
2. Thread brushes onto spindle and tighten.
3. Common applications for knotted wire cup brush includes
cleaning welds, angles, cornere and for paint removal.
4. Usage of the knotted wire wheel brush is the same as the
wire cup brush. Also they can be used to finish irregular
surfaces and corners.
OPERATION (FIG. 8)
GRINDING (PORTABLE GRINDERS ONLY)
To Install Grinding Wheels:
1. UNPLUG ELECTRIC CORD AND BE SURE THAT SWITCH
REMAINS IN THE “OFF” POSITION.
2. Remove or unlatch and pivot away Wheel Guard Cover.
3. Remove Mounting Nut by turning it counter-clockwise
(when facing outer side of wheel). The spindle can be held
stationary by -
a. Inserting and holding a suitable pin in one of the holes
provided in the spindle collar, next to the inward side of
the wheel (5” and 6" Portable Grinders).
b. Holding a wrench on the “flats” provided on the ex­
posed portion of the spindle (2%” Portable Grinder).
4. When installing the new grinding wheel, always use
blotters between the wheel and each surface it contacts
(all Grinders). For 5" and 6" Portable Grinders, use the
clamp washers, supplied with the tool, on either side of the
grinding wheel.
5. Cniy tighten arbor nut sufficiently to drive the wheel with-
^ out slippage.
6. Be sure to replace guard end cover.
7. When starting the tool (with a new or replacement wheel
installed) hold the tool in a well protected area. If the wheel
has an undetected crack or flaw, it should burst in less than
one minute. Never start’the tool with a person in line with
the wheel. This includes the operator.