Bosch 1810PS Operating/Safety Instructions Manual page 14

BM 1609929J65 01-11:BM 1609929J65 01-11 1/20/11 10:41 AM Page 14
PADDLE SWITCH WITH
"LOCK-OFF"FEATURE
(Models 1810PSD, 1811PSD &
1812PSD only)
The Paddle switch enables the operator to
control the switch functions of "Lock-OFF",
and "ON/OFF".
TO UNLOCK SWITCH AND TURN TOOL
"ON": Push "Lock-OFF" switch release lever
backward to unlock paddle switch, then
squeeze paddle switch (Fig. 9).
SELECTING GRINDING WHEELS
Before using a grinding
WARNING
wheel, be certain that its
maximum safe operating speed is not
exceeded by the nameplate speed of the
grinder. Do not exceed the recommended
wheel diameter.
DISC GRINDING WHEELS
Grinding wheels should be carefully selected in
order to use the grinder most efficiently.
Wheels vary in type of abrasive, bond,
hardness, grit size and structure. The correct
type of wheel to use is determined by the job.
Use disc grinding wheels for fast grinding of
structural steel, heavy weld beads, steel
casting, stainless steel and other ferrous
metals.
GRINDING TIPS
Efficient grinding is achieved by controlling the
pressure and keeping the angle between
FIG. 9
PADDLE
SWITCH
"LOCK-OFF"
SWITCH
RELEASE LEVER
"LOCK-ON" BUTTON
(Models 1810PS &
1811PS only)
-14-
TO SWITCH TOOL "OFF": Release pressure
on paddle lever. The switch is spring loaded
and will return to "OFF" position automatically
(Fig. 9).
PADDLE SWITCH WITH "LOCK-OFF" AND
"LOCK-ON" FEATURE
(Models 1810PS & 1811PS only)
The Paddle switch enables the operator to
control the switch functions of "Lock-OFF",
"ON/OFF" and "Lock-ON".
TO UNLOCK SWITCH AND TURN TOOL
"ON": Push switch release lever backward to
unlock ON/OFF switch, then squeeze paddle
switch (Fig. 9).
TO SWITCH TOOL "OFF": Release pressure
on paddle lever. The switch is spring loaded
and will return to "OFF" position automatically
(Fig. 9).
"LOCK-ON" BUTTON
(Models 1810PS & 1811PS only)
The "Lock-ON" feature, incorporated into the
paddle switch, is a convenience for long
operations.
TO LOCK SWITCH "ON": After paddle switch
has been activated push "Lock-ON" button at
rear of tool completely in and release paddle
switch (Fig. 9).
TO SWITCH TOOL "OFF": Squeeze and
release paddle switch (Fig. 9).
wheel and workpiece at 10° to 15°. If the wheel
is flat, the tool is difficult to control. If the angle
is too steep, the pressure is concentrated on a
small area causing burning to the work
surface.
Excessive or sudden pres-
WARNING
sure on the wheel will slow
grinding action and put dangerous stresses on
the wheel.
When grinding with a new wheel be certain to
grind while pulling tool backwards until wheel
becomes rounded on its edge. New wheels
have sharp corners which tend to "bite" or cut
into workpiece when pushing forward.
CUTTING METAL
Using the optional type 1 wheel guard
(supplied with 1812PSD only), it is possible
to perform limited cutting on small stock such
as metal tubes, piping or rebar. When
cutting, work with moderate feed, adapted to