Bosch 1811PS - Manual (Page 9)

-9-
Hold the tool with both hands
while starting the tool, since
torque from the motor can cause the tool to twist.
Start the tool before applying to work and let
the tool come to full speed before contacting
the workpiece. Lift the tool from the work
before releasing the switch. DO NOT turn the
switch “ON” and “OFF” while the tool is under
load; this will greatly decrease the switch life.
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. 6).
TO SWITCH TOOL "OFF": Release pressure
on paddle lever. The switch is spring loaded
and will return to "OFF" position automatically.
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. 6).
TO SWITCH TOOL "OFF": Release pressure
on paddle lever. The switch is spring loaded
and will return to "OFF" position automatically.
"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. 6).
TO SWITCH TOOL "OFF": Squeeze and
release paddle switch.
! WARNING
Operating Instructions
SELECTING GRINDING WHEELS
Before using a grinding
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
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.
"LOCK-ON" BUTTON
(Models 1810PS &
1811PS only)
"LOCK-OFF"
SWITCH
RELEASE LEVER
PADDLE
SWITCH
FIG. 6
Grinding Operations
! WARNING
BM 1609929J65 02-08 2/20/08 11:30 AM Page 9