5.1.6 Service
a)
Have your power tool serviced by a qualified
repair person using only identical replacement
parts.
This will ensure that the safety of the power
tool is maintained.
5.2 Safety instructions for all saws
5.2.1 Cutting procedures
a)
DANGER
Keep hands away from cutting area and the
blade. Keep your second hand on auxiliary han-
dle, or motor housing.
If both hands are holding
the saw, they cannot be cut by the blade.
b)
Do not reach underneath the workpiece.
The
guard cannot protect you from the blade below
the workpiece.
c)
Adjust the cutting depth to the thickness of the
workpiece.
Less than a full tooth of the blade
teeth should be visible below the workpiece.
d)
Never hold piece being cut in your hands or
across your leg. Secure the workpiece to a
stable platform.
It is important to support the
work properly to minimize body exposure, blade
binding, or loss of control.
e)
Hold power tool by insulated gripping surfaces,
when performing an operation where the cutting
tool may contact hidden wiring.
Contact with a
“live” wire will also make exposed metal parts of
the power tool “live” and shock the operator.
f)
When ripping always use a rip fence or straight
edge guide.
This improves the accuracy of cut
and reduces the chance of blade binding.
g)
Always use blades with correct size and shape
(diamond versus round) of arbour holes.
Blades
that do not match the mounting hardware of the
saw will run eccentrically, causing loss of control.
h)
Never use damaged or incorrect blade washers
or bolt.
The blade washers and bolt were specially
designed for your saw, for optimum performance
and safety of operation.
5.2.2 Further safety instructions for all saws
Causes and Operator Prevention of Kickback:
kickback is a sudden reaction to a pinched, bound or
misaligned saw blade, causing an uncontrolled saw to
lift up and out of the workpiece toward the operator;
when the blade is pinched or bound tightly by the kerf
closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator;
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 wood causing the blade to climb
out of the kerf and jump back toward the operator.
Kickback is the result of saw misuse and/or incor-
rect operating procedures or conditions and can be
avoided by taking proper precautions as given below.
a)
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.
b)
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.
c)
When restarting a saw in the workpiece, centre
the saw blade in the kerf and check that saw
teeth are not engaged into the material.
If saw
blade is binding, it may walk up or kickback from
the workpiece as the saw is restarted.
d)
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.
e)
Do not use dull or damaged blades.
Unsharp-
ened or improperly set blades produce narrow
kerf causing excessive friction, blade binding and
kickback.
f)
Blade depth and bevel adjusting locking levers
must be tight and secure before making cut.
If blade adjustment shifts while cutting, it may
cause binding and kickback.
g)
Use extra caution when making a “plunge cut”
into existing walls or other blind areas.
The
protruding blade may cut objects that can cause
kickback.
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