DeWalt DCS777 Manual page 18

English
Compound Mitre (Fig. S, T)
This cut is a combination of a mitre and a bevel cut. This is the type of cut
used to make frames or boxes with slanting sides like the one shown in
Figures S and T.

WARNING: If the cutting angle varies from cut to cut, check that
the bevel clamp handle and the mitre clamping knob are securely
tightened. These must be tightened after making any changes in bevel
or mitre.
• The chart shown below will assist you in selecting the proper bevel and
mitre settings for common compound mitre cuts.
• To use the chart, select the desired angle "A" (Fig. T) of your project
and locate that angle on the appropriate arc in the chart. From that
point follow the chart straight down to find the correct bevel angle and
straight across to find the correct mitre angle.
8 siDED BOX
Set this bevel angle on saw
1. Set your saw to the prescribed angles and make a few trial cuts.
2. Practice fitting the cut pieces together.
Example: To make a four-sided box with 25° exterior angles (angle "A")
(Fig. T), use the upper right arc. Find 25° on the arc scale. Follow the
horizontal intersecting line to either side to get the mitre angle setting
on the saw (23°). Likewise follow the vertical intersecting line to the top
or bottom to get the bevel angle setting on the saw (40°). Always try
cuts on a few scrap pieces of wood to verify the settings on the saw.

WARNING: Never exceed the compound mitre limits of 45° bevel with
45° left or right mitre.
Dust Extraction (Fig. A, U)

WARNING: To reduce the risk of serious personal injury, turn
tool off and disconnect battery pack before making any
adjustments or removing/installing attachments or accessories.
An accidental start-up can cause injury.

WARNING: Certain dust, such as oak or beech dust, is considered
carcinogenic, especially in connection with wood-treatment additives.
• Always use dust extraction.
• Provide for good ventilation of the work space.
• It is recommended to wear an appropriate respirator.

CAUTION: Never operate this saw unless the dust bag or
D WALT dust extractor is in place. Wood dust may create a
e
breathing hazard.

CAUTION: Check and clean the dust bag each time after using.
16
sQUARE BOX
6 siDED BOX

WARNING: When sawing aluminium, remove the dust bag, or
disconnect the dust extractor to avoid the risk of fire.
Your mitre saw has a built-in dust port
either a dust bag (33 mm nozzles) or direct attachment to the D
AirLock (DWV9000-XJ) .
45
Observe the relevant regulations in your country for the materials to
be worked.
To Attach the Dust Bag
1. Fit a dust bag to the dust port
To Empty the Dust Bag
1. Remove dust bag from the saw and gently shake or tap the dust bag
to empty.
2. Reattach the dust bag back onto the dust port.
You may notice that all the dust will not come free from the bag. This will
not affect cutting performance but will reduce the saw's dust collection
efficiency. To restore your saw's dust collection efficiency, depress the
spring inside the dust bag when you are emptying it and tap it on the side
of the trash can or dust receptacle.
External Dust Extraction
When vacuuming dry dust that is especially detrimental to health or
carcinogenic, use a special dust Class M vacuum cleaner.
Connecting to an Airlock Compatable Dust Extractor (Fig. U)
The dust port on your mitre saw is compatable with the D
30
AirLock connection system. The AirLock allows for a fast, secure connection
between the dust extractor hose and the mitre saw.
1. Ensure the collar on the AirLock connector
Align notches on collar and AirLock connector as shown for unlock and
lock positions.
2. Push the AirLock connector onto the dust port
3. Rotate the collar to the locked position.
nOTE: The ball bearings inside collar lock into slot and secure
the connection.The mitre saw is now securely connected to the
dust extractor.
MAINTENANCE
Your D WALT power tool has been designed to operate over a long period
e
of time with a minimum of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.

WARNING: To reduce the risk of serious personal injury, turn
machine off and disconnect battery pack before making any
adjustments or removing/installing attachments or accessories.
An accidental start-up can cause injury.

WARNING: If the saw blade is worn replace it with a new sharp blade.
Lubrication
Your power tool requires no additional lubrication.
Cleaning
Before use, carefully check the upper blade guard, movable lower blade
guard as well as the dust extraction tube to determine that it will operate
properly. Ensure that chips, dust or workpiece particle cannot lead to
blockage of one of the functions.
In case of workpiece fragments jammed between saw blade and guards
disconnect the machine from the power supply and follow the instructions
given in section Changing or Installing a New Saw Blade. Remove the
jammed parts and reassembling the saw blade.

WARNING: Blow dirt and dust out of the main housing with dry air
as often as dirt is seen collecting in and around the air vents. Wear
that allows connection to
30
WALT
e
.
30
WALT
e
45 is in the unlock position.
.
30