DEFICIENCIES DURING THE SANDING OPERATION
1. The stock to be sanded is thinner at the beginning.
CAUSE:
•
The rear pressure bar is too low in relation to the contact roller.
2. The stock to be sanded is thinner at the end.
CAUSE:
•
The front pressure bar is too low in relation to the contact roller.
3. The sanding paper clogs too quickly.
CAUSE:
•
The grit of the sanding paper is too fine.
•
Too much material is sanded off.
•
The wood is too oily and clogs the abrasive grains too quickly.
•
The exhaust is insufficient.
•
There is too much dirt of glue on the wood.
•
The wood is too moist.
4. When sanding veneers it sands through too quickly.
CAUSE:
•
The front pressure bar is not fixed.
•
The front pressure bar is too high.
5. Too much rounding occurs along the edges when solid wood is sanded.
CAUSE:
•
Too much material is removed so that the contact roller is pressed too much.
6. There are differences in thickness between the left and the right side of the work piece.
CAUSE:
•
The table is not in correct position in relation to the contact roller.
•
The front pressure bar is not in a correct position in relation to the contact roller.
7. There are differences in thickness between the front and backsides of the work piece.
CAUSE:
•
Through feed speed is too high.
•
Too much stock is being removed.
•
The sanding paper is too fine in relation to the stock removal.
8. The work piece slips on the conveyor belt.
CAUSE:
•
Too little pressure between the pressure bar, work piece and/or table, work piece.
•
When sanding veneers, too little table pressure.
•
Conveyor belt is too smooth.
•
Too much dust on the conveyor belt.
•
The rear pressure bar is too low, so that this stops the work piece.
Содержание XS-1A25
Страница 1: ...XS 1A25 EXTREMA MACHINERY COMPANY INC PO BOX 1450 ALBANY LOUISIANA 70711 877 398 7362 FAX 225 567 2966...
Страница 18: ......
Страница 19: ......
Страница 20: ...MAIN FRAME GROUP...
Страница 22: ...WORKING TABLE CONVEYOR GROUP...
Страница 24: ...P HEAD GROUP...
Страница 26: ...PRESSURE ROLLER GROUP...