Pressure Rollers
The spring tension of the pressure rollers can be adjusted to reduce snipe. (Note: roller pressure is also affected by the drum height.)
To adjust the pressure rollers:
1.Disconnect the sander from the power source!
2.Remove sanding head cover (disconnect dust collector hose if attached).
3.Loosen the jamnuts on the hex bolts. Turn the hex bolts downward to increase the pres- sure roller spring tension. See Figure 11. Increasing the tension will increase the pres- sure of the board on the conveyor belt, but will also be less forgiving of irregularities in the board and could cause jamming. You will need to determine experimentally the optimal tension for your stock.
4.Replace the sanding head cover and recon- nect the dust collector.
Roller Pressure
Adjusting Bolt
Figure 11. Location of pressure roller tensioners.
To provide increased operator control, the Model G1066Z features height adjustment controls for the feed roller. These controls are located on the underside of the roller pressure spring controls and consist of a hex bolt and jamnut setup, exact- ly like the roller pressure spring tension controls.
To adjust the pressure roller height on the Model G1066Z:
1.Disconnect sander from the power source!
2.The “Drum Alignment” instructions must be followed before this adjustment can be per- formed. Use the same 2x4 for this procedure.
3.With the 2x4 in place on one end of the table, raise the table up to reference height #1.
4.Lower the table 1 full turn with the hand- wheel.
5.On the same side as the 2x4, loosen the jam- nuts on the roller height hex bolts.
6.Adjust all 3 pressure rollers by turning the hex bolts. The pressure rollers should barely touch the surface of the 2x4, allowing just enough room to rotate. At this position, tight- en the jamnut on the bolt so it does not move.
7.Repeat steps
These adjustments should be used as a starting point. Once you are familiar and comfortable with the adjustment procedures, you should experi- ment to arrive at the best settings for your specif- ic application.
G1066/G1066Z/G1079 Drum Sander |
