Maintenance - DeWalt DW770 User Manual

ENG LI SH
3. Loosen the knob to adjust the clamp up or down, then use the fine
adjust knob to firmly clamp the workpiece.
NOTE: Place the clamp on the right side of the base when beveling.
ALWAYS MAKE DRY RUNS (UNPOWERED) BEFORE FINISH CUTS TO
CHECK THE PATH OF THE BLADE. ENSURE THE CLAMP DOES NOT
INTERFERE WITH THE ACTION OF THE SAW OR GUARDS.
Compound Mitre (fi g. 23, 24)
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 figure 23.
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. 24) 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.
0 5 10 15
45
40
35
6 SIDED BOX
30
25
20
15
10
8 SIDED BOX
5
0 5 10 15
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. 24), 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.
Support for Short and Long Pieces (fi g. 3, 4)
CUTTING SHORT MATERIAL
It is advisable to use the length stop (oo) for short workpieces both for
batch sawing and for short individual workpieces of different lengths.
The length stop can only be used in conjunction with a pair of optional
guide rails (ii).
CUTTING LARGE MATERIAL
WARNING: To reduce the risk of injury, always support
long workpieces.
Figure 3 shows the ideal configuration for sawing long workpieces when
the saw is used free-standing (all items available as an option).
These items (except the legstand and the material clamp) are required
both on the infeed and the outfeed side:
– Legstand (nn) (supplied with mounting instructions).
12
20 25 30 35 40 45
SQUARE BOX
40
35
30
25
20
15
10
20 25 30 35 40 45
– Guide rails (500 or 1,000 mm) (ii).
– Stands (mm) to support the guide rails. Do not use the stands to
support the machine! The height of the stands is adjustable.
– Material support plates (jj).
– Table end plate (hh) for supporting the rails (also when working
on an existing bench).
– Material clamp (kk).
– Swivelling stop (ll).
1. Place your saw on the legstand and fit the guide rails.
2. Firmly screw the material support plates (jj) to the guide rails (ii).
3. The material clamp (kk) now functions as a length stop.
4. Install the table end plates (hh).
5. Install the swivelling stop (ll) to the rear rail.
6. Use the swivelling stop (ll) to adjust the length of medium and long
workpieces. It can be adjusted sideways or swung out of the way
when not in use.
Dust Extraction (fi g. 1, 6)
Connect a dust collection device designed in accordance with the
relevant regulations. The air velocity of externally connected systems
shall be 20m/s +/- 2 m/s. Velocity to be measured in the connection
tube at the point of connection, with the tool connected but not
running.
A separate dust kit is available as an option (DE7777).
1. Fit the dust extraction tubes (qq) to the nozzles (q); the longer hose
to upper nozzle.
2. Connect the hoses to the three-way connector (rr).
Transporting (fi g. 1)
5
1. To transport the saw, set the bevel and mitre positions to 0°.
2. Press the lower guard lock up release lever (b) (fig.1).
3. Press the head down and press the lock down button (w) (fig. 2).
4. Bring the saw blade to rest position and press the traverse lock (r).

MAINTENANCE

Your D WALT power tool has been designed to operate over a long
E
period of time with a minimum of maintenance. Continuous satisfactory
operation depends upon proper tool care and regular cleaning.
Lubrication
Your power tool requires no additional lubrication.
WARNING: Whenever possible, connect a dust extraction
device designed in accordance with the relevant regulations
regarding dust emission.
WARNING: In order to conveniently carry the mitre saw,
the base is provided with two hand indentations (ff). Never
use guards to lift or transport the mitre saw.
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.
WARNING: If the saw blade is worn replace it with a
new sharp blade.