Maintenance - DeWalt DW390 Originalanweisungen

EN GLI SH
adjustments or removing/installing
attachments or accessories.
WARNING:
• Ensure the material to be sawn is
secured in place.
• Apply only a gentle pressure to the
tool and do not exert side pressure on
the saw blade.
• Avoid overloading.
Proper Hand Position (fi g. 5)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the main
handle (q) with the other hand either on the front
handle (c) or the side handle (d).
Switching On and Off (fi g. 1)
DW390
For safety reasons the ON/OFF switch (a) is
equipped with a lock-off button (b).
1. Press the lock-off button (b) to unlock the tool.
2. To run the tool, press the ON/OFF switch (a).
As soon as the ON/OFF switch is released the
lock-off switch is automatically activated to
prevent unintended starting.
3. Always switch off the tool before unplugging.
DW391
For safety reasons the variable speed switch (a) is
equipped with a lock-off button (b).
1. Press the lock-off button (b) to unlock the tool.
2. To run the tool, press the variable speed
switch (a). The pressure exerted on the switch
determines the tool speed. As soon as the
variable speed switch is released the lock-off
switch is automatically activated to prevent
unintended starting.
3. Always switch off the tool before unplugging.
Sawing (fi g. 1, 5 & 6)
NOTICE: Do not use the saw for cutting
curves or pockets. Make sure the bar
end protrudes from the workpiece.
For long, straight cuts first draw a line on the
workpiece and follow the line.
26
Make downward cuts only. Avoid cutting earth as
this will blunt the saw blades very quickly.
When using a saw horse always cut on the outside
of the saw horse arms.
1. Clamp the workpiece on one side only to
prevent the bar from jamming in the workpiece.
Should this happen, ease open the cut with
wedges to relieve the strain on the blade. Do
not try to wrench the saw free.
2. Hold the saw as described in Proper Hand
Position.
To increase performance and lifetime of non-painted
saw blades, regularly apply oil to the blades and in
the oil holes (k) (every 15–30 min.). Do not lubricate
painted blades.
Regularly check the saw blade fixing screws (h).
Sawing in Wood (fi g. 5)
Gently rock the tool as shown. This increases
performance and lifetime of the saw blades and
helps to remove sawdust.
When the tool is used indoor for extended
periods of time, it must be connected to a suitable
dust extractor. Use a dust extractor designed in
compliance with the applicable Directives regarding
dust emission.
Sawing in Cellular Concrete (fi g. 1)
WARNING: Cellular concrete contains
lime and quartz sand.
To guarantee optimum performance, the
saw blades, the bar and the saw blade
guide slot (l) must be thoroughly cleaned
after use.

MAINTENANCE

Your D WALT power tool has been designed to
E
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing
set-ups or when making repairs.
Be sure the trigger switch is in the OFF
position. An accidental start-up can
cause injury.