Chatter-Wave Prevention - Amano American Sanders FloorCrafter Manual Del Operador

EN
American Sanders belt machines are designed and manufactured to the most rigid
tolerances. However, after a finishing cut it is possible to see "chatter" or "waves".
The best guarantee to remove the chatter is to finish the floor with a rotating
horizontal sander, such as the American Sanders Epoch HD.
To minimize chatter when using a belt or drum sander, the following steps should
be taken:
1. DRUM MARKS...are caused by the operator lowering the drum to the floor
without forward traverse. These marks should be removed by cutting at a 45
degree angle to the mark. Cutting at the mark while maintaining the same
path will only increase the mark depth and width.
(See figure 14)
2. UNEVEN WALKING SPACE...can leave lengthy "waves". The machine
cuts more material during the slower pace. Pay particular attention to a
steady even pace.
3. EXCESSIVE LIGHT CUTS...may reveal high spots on the paper/contact
wheel and cause chatter. Take a heavier cut and increase the pace.
4. DEBRIS...lodged between the paper and the drum will leave chatter. On a belt sander, debris may be adhered to the drum.
Insure the drum is clean and free of debris before placing the paper on.
5. ABRASIVE QUALITY...may vary. Belt seams can be thicker on low quality paper and cause chatter. Use only American Sanders
specified sandpaper. Store abrasive according to manufacturer's recommendation.
PROPER CARE OF YOUR MACHINE CAN MINIMIZE CHATTER AND WAVES.
1. V-BELTS...can cause vibration and chatter if they are of low quality. Use only belts specified by American Sanders.
2. TRUCK AND CASTER WHEELS...with flat spots, out-of-roundness, or debris adhered to their surface can cause "waves" or a "chatter effect".
Always clean and inspect all wheels before starting to sand, and before the finish cut. Replace or true the wheels if found to be out-of-round.
Never allow the sander to stand on hard surfaces for lengthy periods of time.
3. DUST PICK-UP SHOES...may need adjusted differently for different materials that are to be sanded. An improperly adjusted shoe will leave
trailing debris that will be run over by the wheels and cause "random waves".
4. CONTACT WHEELS (DRUMS)...may be out-of-round and cause "chatter". Contact your American Sanders dealer for assistance to true or
replace the drum.
Chatter Wave Prevention
13
Figure 14