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The grading mesh replacement procedure shall be as follows:
1.
De-energize the METRA GPC.
2. Perform the METRA GPC cleaning.
3. Remove all the protective casing.
4. Remove the geared motor from the drive shaft.
5. Remove the frame with the grading mesh using a crane or by hoist.
6. Lower the frame on a flat, clean surface.
7.
Release the tension device and reduce the maximum shaft.
8. Remove the grading mesh, moving it aside.
9. Set the desired mesh size.
10. The tensioner may potentially stretch the mesh, hence make sure that drive and support shafts are parallel to each other.
11. Install the frame with a grid in the hopper
12. Check the smoothness of the grading mesh rotation.
13. Set geared motor to the drive shaft.
14. Install all protective casing.
15. Switch on the METRA GPC with no grain supply. Make sure that the grading mesh rotation occurs smoothly without
jumps or delays.
9
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