Fein GRIT GIR Instrucciones De Uso página 14

GIR_GIRA - Buch Seite 14 Dienstag, 8. August 2006 11:37 11
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Mounting/replacing the grinding belt.
Before any work on the machine itself, pull
the power plug from the socket outlet.
When starting the operation of the GI 150/
GI 150 2H belt grinder for the first time:
Check the direction of rotation.
Loosen the belt tension lever (11)
and assemble a grinding belt,
size 150 x 2250 mm.
The direction-of-rotation mark of the
grinding belt must correspond with the
direction of rotation.
Tension the grinding belt with the belt ten-
sion lever (11).
Rotate the grinding belt manually and
observe if it moves left or right of the con-
tact roller (27).
Adjust the guidance of the drive wheel on
the belt grinder in such a manner that the
grinding belt runs centred. The exact adjust-
ment is made with the machine running.
Operating instructions.
Wear safety glasses.
Close the cover/side cover (26)/(5). When
the protective devices are not mounted, the
grinding belt can catch hold of your clothing
and cause serious injury.
Turn the button of the red emergency
OFF pushbutton on the GI 150/GI 150 2H
belt grinder toward the right and flip the
button upward. The On/Off switch is
located below the red emergency
OFF pushbutton.
Switching ON:
Push the green button.
Switching OFF:
Push the red button.
In case of an emergency, immediately push
the red emergency OFF pushbutton on the
belt grinder.
14
Adjusting the grinding belt.
Briefly switch on the belt grinder.
Observe the tracking direction of the grind-
ing belt.
Adjust the belt tracking on the belt grinder
until the grinding belt runs centred on the
contact roller (27).
When the belt tracking can not be adjusted cen-
tred, the parallelism of the GIR/GIRA must be
readjusted (fig. 5):
Loosen the four mounting bolts (12).
Loosen the two bolts (10).
Readjust the alignment mounting
screws (30) using an Allen key, size 4 mm.
Tighten bolts (10) and (12) again.
Check the parallelism of the belt tracking. Repeat
the previous step if the results are not satisfac-
tory.
NOTE: The guide mechanism for the contact
roller of the GIR/GIRA is factory-set to be paral-
lel. Readjustment is only required when centred
tracking is not achieved while adjusting the drive
wheel.
Adjusting the centre height (Figure 3).
The height of the contact roller is usually set to
the centre of the pipe. However, the adjustment
can be changed:
Unclamp the clamping lever (15).
Adjust the contact roller to the required
height with the lever (13).
Tighten the clamping lever again.
Check the adjustment by carrying out a
grinding test.
Connecting the compressed air
(GIRA – Figure 6).
Connect the compressed-air hose to the com-
pressed-air connection (36).
Check the pressure on the manome-
ter (31) (operating pressure: 6 bar (10 bar
max.)) When the pressure is too low, the
automatic does not operate properly.
When the pressure is too high, the com-
pressed-air control can be damaged.
GIR/GIRA