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Figure 29. Marked height handwheel.
ADJUSTMENTS
-18-
PART 3: Drum-to-Conveyor Height
For this adjustment, you will find a reference
height for the front drum and then adjust the
rear drum so it is 0.007" to 0.010" lower than the
front drum. See Figure 27.
To adjust the drum-to-conveyor height, do these
steps:
1. Lower the conveyor table, and position the
30" gauge block to one side of the conveyor
belt and flush with the end of the feed
conveyor drive roller. See Figure 28.
2. Raise the conveyor table so the gauge block
barely touches the front drum and mark this
height position with tape on the handwheel
at the 12:00 o’clock position. See Figure 29.
3. Turn the handwheel counter-clockwise exactly
1
⁄2 turn to lower the conveyor.
4. Unlock the rear-drum micro-adjusting lock
lever and turn the micro-adjusting knob so
the rear drum lowers until it just barely
touches the gauge block.
5. Repeat Step 14 at both ends of the rear drum.
Figure 28. The 30" gauge block positioning.
0.007" to 0.010"
REAR DRUM
FRONT DRUM
Figure 27. Drum-to-conveyor height.
NOTICE
Make sure you use the same part of the 30" gauge
block at the opposite side of the conveyer belt
when adjusting the drum-to-conveyor height.
Otherwise, the adjustment may be inconsistent.
NOTICE
Once the rear drum height is set, the height
can be fine-tuned later without having to
complete all four parts of this section.
However, you must make sure that when you
adjust the rear drum height you adjust it
equally on both sides so it stays square and
level with the conveyor table. Using a pencil,
mark a squiggly line on the workpiece and sand
it to test for even sanding. Look for uniform
removal of the line. If the line is not removed
uniformly, readjust the sander accordingly.