Bosch Power Tools 3912

Safety

“READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by BULLET (l) symbol listed

BELOW and other safety precautions, may result in serious personal injury.

•Cut only one workpiece at a time. Multiple workpieces

cannot be adequately clamped or braced and may bind

on the blade or shift during cutting.

•Be certain the miter saw is mounted or placed on a

level, firm work surface before using. A level and firm

work surface reduces the risk of the miter saw becoming

unstable.

•Plan your work. Provide adequate support

accessories such as tables, saw horses, table

extension, etc. for workpieces wider or longer than

the table top (see page 21). Workpieces longer or

wider than the miter saw table can tip if not securely

supported. If the cutoff piece or workpiece tips it can lift

the lower guard or be thrown by the spinning blade.

•Do not use another person as a substitute for a table

extension or as additional support. Unstable support

for the workpiece can cause the blade to bind or the

workpiece to shift during the cutting operation pulling

you and the helper into the spinning blade.

•The cutoff piece must not be jammed against or

pressured by any other means against the spinning

saw blade. If confined, i.e. using length stops, it could

get wedged against the blade and thrown violently.

•Always use a clamp or a fixture designed to properly

support round material such as dowel rods, or

tubing. Rods have a tendency to roll while being cut,

causing the blade to “bite” and pull the work with your

hand into the blade.

•When cutting irregularly shaped workpieces, plan

your work so it will not slip and pinch the blade and

be torn from your hand. A piece of molding, for

example, must lie flat or be held by a fixture or jig that will

not let it twist, rock or slip while being cut.

•Let the blade reach full speed before contacting the

workpiece. This will help avoid thrown workpieces.

•If the workpiece or blade becomes jammed or

bogged down, turn miter saw “OFF” by releasing

switch. Wait for all moving parts to stop and unplug

the miter saw, then work to free the jammed

material. Continued sawing with jammed workpiece

could cause loss of control or damage to compound

miter saw.

•Braking action of the saw causes the saw head to

jerk downward. Be ready for this reaction when

making an incomplete cut or when releasing the switch

before the head is completely in the down position.

•After finishing the cut, release the switch, hold the

saw arm down and wait for blade to stop before

removing work or cutoff piece. If blade does not stop

within five (5) seconds, unplug the saw and follow the

instructions in the Troubleshooting section.

REACHING WITH YOUR HAND UNDER A COASTING

BLADE IS DANGEROUS!

Some dust created by power sanding,

sawing, grinding, drilling, and other

construction activities contains chemicals known to

cause cancer, birth defects or other reproductive harm.

Some examples of these chemicals are:

• Lead from lead-based paints,

• Crystalline silica from bricks and cement and other

masonry products, and

• Arsenic and chromium from chemically treated

lumber.

Your risk from these exposures varies, depending on how

often you do this type of work. To reduce your exposure to

these chemicals: work in a well ventilated area, and work

with approved safety equipment, such as those dust masks

that are specially designed to filter out microscopic

particles.

•There are additional safety instructions for particular

operations of the saw in the operating section. Read

the rest of the manual for safe operation.

“SAVE THESE INSTRUCTIONS”

WARNIN