Operation - Hilti SC 70W‑A22 Operating Instructions Manual

7 Operation

NOTE
If the blade has jammed, the tool will not restart by itself
when the pressure applied to it is removed. The switch-on
interlock and the on/off button must be pressed again.
DANGER
en
Remove the battery from the power tool before mak-
ing any adjustments, before changing accessories
and before storing the power tool. Such preventive
safety measures reduce the risk of starting the tool acci-
dentally.
DANGER
Do not switch the power tool on if the saw blade,
the blade guard or the pivoting guard are not fitted
correctly.
CAUTION
Check all safety devices each time before using the
saw. Open the pivoting guard fully and check that the
guard automatically returns to the fully closed position
when released. Clean the pivoting guard if necessary
or have the power tool repaired by Hilti Service if it
malfunctions.
7.1 Changing the saw blade
CAUTION
Wear protective gloves when changing saw blades.
The saw blade, clamping flange and clamping screw get
hot and the cutting edges of the saw blade are sharp.
CAUTION
Check that the blade to be fitted complies with the
technical requirements and that it is well sharpened. A
sharp saw blade is an essential requirement for a perfect
cut.
7.1.1 Removing the saw blade 5
1. Insert the hex. socket wrench in the saw blade
clamping screw.
2. Press the drive spindle lockbutton and hold it in this
position.
3. Turn the saw blade clamping screw with the hex.
socket wrench until the spindle lockbutton engages
fully.
4. Release the clamping screw by turning the hex.
socket wrench further in the direction of the
direction-of-rotation arrow.
5. Remove the clamping screw from the outer clamping
flange.
6. Open the pivoting guard by swinging it to the side
and then remove the saw blade.
NOTE If necessary, the mounting flange can be
removed for cleaning.
7.1.2 Fitting the saw blade 6
1. Clean the mounting flange and the clamping flange.
2. Fit the mounting flange onto the drive spindle the
right way round.
20
3. Open the pivoting guard.
4. CAUTION Observe the direction-of-rotation ar-
row on the saw blade and on the power tool.
They must correspond.
Fit the new saw blade.
5. Fit the outer clamping flange the right way round.
6. Insert the clamping screw.
7. Insert the hex. socket wrench in the saw blade
clamping screw.
8. Press the drive spindle lockbutton.
9. Secure the clamping flange with the clamping screw
by turning the hex. socket wrench in the opposite
direction to the direction-of-rotation arrow.
The spindle lockbutton engages as you do so.
10. Before using the power tool, check that the saw
blade is correctly seated and tightened securely.
7.2 Adjusting the cutting depth 7
NOTE
The cutting depth set should always be approx. 5 to 10
mm greater than the thickness of the material to be cut.
NOTE
The depth setting can be read from the scale and pointer
at the rear of the blade guard.
7.3 Adjusting the cutting angle 8
The cutting angle preset makes it easy to set the max-
imum angle (22.5°, 45°, 50°).
1. Release the cutting angle adjustment clamping
lever.
2. Pivot the base plate to the 0° position.
3. Set the preset angle pointer to the desired maximum
angle.
4. Pivot the base plate to the desired angle.
5. Tighten the cutting angle adjustment clamping lever.
7.4 Sawing along a line 9
NOTE
Secure the workpiece to prevent movement.
NOTE
Position the workpiece so that the saw blade is free to
rotate beneath it.
NOTE
Check to ensure that the on / off switch on the power
tool is in the "off" position.
NOTE
Position the forward section of the saw's base plate on
the workpiece but do not bring the blade into contact
with the workpiece.