69
BLITZ
G BG B
G BG B
G B
10.3 FITTING A NEW BLADE
The saw blade should be changed when it is noticed that the cutting quality is not optimal because of wear or
because some teeth are broken. To do this carry out the following procedure.
Wear gloves.
Position the head to 90°.
Turn the pneumatic disconnecting switch to “0” and padlock it; open the main switch locking it in place with
a padlock.
WARNING - IMPORTANT
After switching off the compressed air supply, wait at least 10 sec. before cutting off power to the machine,
to make sure, for safety reasons, that the blades have stopped completely in braked mode (with a time of less
than 10 sec.). Otherwise, if this rule is not followed, when power to the machine is cut off, it will be necessary
to wait at least 3 min. before gaining access to the blade.
Take away blade safety guard “A” by undoing the 3 screws “B” (Fig. 10-05).
With one of the tools supplied “C” secure the flange by inserting the 2 pins of the tool in the relative holes and
with the other tool “D” remove fixing screw “E” turning counter clockwise for the fixed head and clockwise for
the mobile head (Fig. 10-06).
Pull out by hand flange “F” of the motor shaft (Fig. 10-07).
Remove the blade carefully, slipping it off the motor shaft.
WARNING
When refitting the new blade, make sure that the teeth are pointing in the right direction.
After positioning the sawblade on the shaft, fit flange “F” - Fig. 10-07 by hand after greasing it suitably, then
refit fixing nut “E” - Fig. 10-06 (clamping torque = 35 Nm).
Lastly, refit safety guard “A” securing the 3 fixing screws “B” (Fig. 10-05).
Release and turn the pneumatic disconnecting switch to “I”, remove the padlock from the main switch, then
restore power to the machine using the same switch.
Carry out a few test runs of the blade (to check for any vibrations).
10-05
B
A
