Metabo HPT CD 1805DB Manual página 5

– if the blade becomes twisted or misaligned in the cut,
the teeth at the back edge of the blade can dig into
the top surface of the steel materials causing the
blade to climb out of the kerf and jump back toward
the operator.
Kickback is the result of saw misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
1. Maintain a firm grip with both hands on the saw
and position your arms to resist kickback forces.
Position your body to either side of the blade,
but not in line with the blade.
Kickback could cause the saw to jump backwards,
but kickback forces can be controlled by the operator,
if proper precautions are taken.
2. When blade is binding, or when interrupting a
cut for any reason, release the trigger and hold
the saw motionless in the material until the blade
comes to a complete stop.
Never attempt to remove the saw from the work
or pull the saw backward while the blade is in
motion or kickback may occur.
Investigate and take corrective actions to eliminate
the cause of blade binding.
3. When restarting a saw in the workpiece, centre
the saw blade in the kerf so that the saw teeth
are not engaged into the material.
If a saw blade binds, it may walk up or kickback from
the workpiece as the saw is restarted.
4. Support large panels to minimise the risk of
blade pinching and kickback.
Large panels tend to sag under their own weight.
Supports must be placed under the panel on both
sides, near the line of cut and near the edge of the
panel.
5. Do not use dull or damaged blades.
Unsharpened or improperly set blades produce
narrow kerf causing excessive friction, blade binding
and kickback.
6. Blade depth and bevel adjusting locking levers
must be tight and secure before making the cut.
If blade adjustment shifts while cutting, it may cause
binding and kickback.
7. Use extra caution when sawing into existing
walls or other blind areas.
The protruding blade may cut objects that can cause
kickback.
Lower guard function
1. Check the lower guard for proper closing before
each use. Do not operate the saw if the lower
guard does not move freely and close instantly.
Never clamp or tie the lower guard into the open
position.
If the saw is accidentally dropped, the lower guard
may be bent.
Raise the lower guard with the retracting handle and
make sure it moves freely and does not touch the
blade or any other part, in all angles and depths of
cut.
2. Check the operation of the lower guard spring. If
the guard and the spring are not operating
properly, they must be serviced before use.
Lower guard may operate sluggishly due to damaged
parts, gummy deposits, or a build-up of debris.
3. The lower guard may be retracted manually only
for special cuts such as "plunge cuts" and
"compound cuts".
Raise the lower guard by the retracting handle
and as soon as the blade enters the material, the
lower guard must be released.
For all other sawing, the lower guard should operate
automatically.
4. Always observe that the lower guard is covering
the blade before placing the saw down on bench
or floor.
An unprotected, coasting blade will cause the saw to
walk backwards, cutting whatever is in its path.
Be aware of the time it takes for the blade to stop after
switch is released.
SPECIFIC SAFETY RULES AND SYMBOLS
1. Adjustments. Before cutting be sure cutting
depth adjustment is tight.
2. Avoid cutting nails. Inspect for and remove all
nails from work piece before cutting.
3. When operating the saw, keep the cord away
from the cutting area and position it so that it will
not be caught on the workpiece during the
cutting operation.
Operate with proper hand support, proper workpiece
support, and supply cord routing away from the work
area.
WARNING
It is important to support the work piece properly
and to hold the saw firmly to prevent loss of
control which could cause personal injury. Fig. 1
illustrates typical hand support of the saw.
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