Assembly And Adjustments - DeWalt DWS780 Instruction Manual

To transport the saw, lower the arm of the saw and press in the lock down pin
the arm.

ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of serious personal injury, turn unit off and disconnect
it from power source before making any adjustments or removing/installing
attachments or accessories. An accidental start-up can cause injury.
NOTE: Your miter saw is fully and accurately adjusted at the factory at the time of manufacture.
If readjustment due to shipping and handling or any other reason is required, follow the steps
below to adjust your saw.
Once made, these adjustments should remain accurate. Take a little time now to follow these
directions carefully to maintain the accuracy of which your saw is capable.
Assembling the Base Extensions (Fig. C)
WARNING: Base extensions must be assembled to both sides of the saw's base before using
the saw.
1. Locate the preassembled threaded stud
2. The extension should be oriented as shown in the illustration, sliding fully rearward in the
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U-shaped supports.
3. Clamp the extension's rods against the miter saw base by inserting the clamp
threaded stud, followed by the washer
extension is secure by pulling on the extension to verify no movement.
4. Repeat steps 1 through 3 on the other side.
Fig. C
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Changing or Installing a New Saw Blade (Fig. A, D–F)
WARNING: To reduce the risk of serious personal injury, turn off the tool and
disconnect it from the power source before attempting to move it, change
accessories or make any adjustments.
CAUTION:
• Never depress the spindle lock button while the blade is under power or coasting.
• Do not cut ferrous metal (containing iron or steel) or masonry or fiber cement product
with this miter saw.
Removing the Blade
1. Unplug the saw.
2. Raise the arm to the upper position and raise the lower guard
3. Loosen, but do not remove guard bracket screw
enough to access the blade screw 34
the guard bracket screw.
4. Depress the spindle lock button 35
lock engages.
5. Keeping the button depressed, use the other hand and the blade wrench
loosen the blade screw. (Turn clockwise, left-hand threads.)
17
54 underneath the saw's base.
56 , and tightening the wing nut 33
54
55
33
4 as far as possible.
until the bracket can be raised far
58
. Lower guard will remain raised due to the position of
while carefully rotating the saw blade by hand until the
36
to secure Fig. D
55 over the
. Ensure the
6. Remove the blade screw
clamp 40 and if used, the 1" (25.4 mm) blade adapter, may be left on the spindle.
NOTE: For blades with a blade hole of 5/8" (15.88 mm), the 1" (25.4 mm) blade adapter is
not used.
Fig. F
34
56
Installing a Blade
1. Unplug the saw.
2. With the arm raised, the lower guard held open and the guard bracket raised, place the blade
on the spindle, onto the blade adapter [if using a blade with a 1" (25.4 mm) diameter blade
hole] and against the inner blade clamp with the teeth at the bottom of the blade pointing
toward the back of the saw.
3. Assemble the outer blade clamp onto the spindle.
4. Install the blade screw
blade wrench provided. (Turn counterclockwise, left-hand threads.)
NOTE: When using blades with a 5/8" (15.88 mm) diameter blade hole, the blade adapter will
not be used and should be stored in a safe place for future use.
5. Return the guard bracket to its original position and firmly tighten the guard bracket
screw 58 to hold bracket in place.
WARNING:
• The guard bracket must be returned to its original position and the screw
tightened before activating the saw.
provided to
• Failure to do so may allow the guard to contact the spinning saw blade resulting
in damage to the saw and severe personal injury.
Miter Scale Adjustment (Fig. A, G)
Unlock the miter lock handle
it at the 0° miter position. Do not lock the miter lock handle. Place a square against the saw's
fence and blade, as shown. (Do not touch the tips of the blade teeth with the square. To do
so will cause an inaccurate measure ment.) If the saw blade is not exactly perpendicular to the
fence 10 , loosen the four miter scale screws
lock handle and the scale left or right until the blade is perpendicular to the fence, as measured
with the square. Retighten the four screws. Pay no attention to the reading of the miter pointer
at this time.
58
36
Fig. E
34 , outer blade clamp 37 , and blade
37
and, engaging the spindle lock, tighten the screw firmly with the
34
5 and swing the miter arm until the miter latch button
8 that hold the miter scale and move the miter
ENGLISH
34
35
38 . The inner clamp
38
40
6 locks
5