- Replace belts and check belt tension
Carrying out the maintenance activities described below requires
special knowledge. For this reason, these maintenance activities
must be carried out only by authorized personnel of the
manufacturer!
Orientation
Use only the original belts according to the spare or wear parts list.
Requirement
After replacing a drive belt, be sure to observe the values (Hz)
specified in the table below for the belt tension of the respective axis.
A frequency meter is required for testing.
Also the reference point may need to be checked or adjusted.
Setting values in Hertz (Hz) for belt tension
Up to machine number 10310028, drive belts with a width of 20 mm
are used for the Z1, Z2, and Z5 axes. Starting with machine
10310029, they are replaced by drive belts with a width of 30 mm.
These drive belts are pretensioned with a value of 94 Hz (see table
above).
Procedure
1.
Caution
Uncontrolled movements of axes or machine components.
Severe cut and crush injuries.
Secure all axes or components against uncontrolled movements
during maintenance or repair work.
Move the tool slides to a suitable position.
2. Replace Z1 belt.
3. Measure belt tension (frequency meter) and adjust belt.
4. Replace Z2 belt.
Maintenance Summary - 4.000 Operating hours
72
Maintenance Instructions
G220
DIE017EN - 05.06.2019
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