Woodstock W1773, W1772 owner manual Rear right sanding drum micro Adjusting knob

W1772/W1773 37" Drum Sander

5.Loosen the lock lever or lock handle (see Figures 56 & 57) at one end of the rear drum.

6.Turn the micro-adjustment knob until a 0.010" feeler gauge fits between the drum and gauge board (Figure 58).

7.Repeat the adjustment in Step 6 on the other side of the rear drum until the height difference between both ends is 0.002" or less.

8.Lock the micro-adjustment lock lever and lock han- dle.

Micro-Adjust

Knob

Lock Lever

Figure 56. Rear right sanding drum micro-

adjusting knob.

9.Loosen the front drum pillow bearing lock nuts (Figure 51, Page 39).

10.Adjust the height of the front drum ends by adjusting the set screws (Figure 51) on the pillow bearing up or down until the largest size feeler gauge you can fit between the front drum and 36" long gauge blocks (at both ends) is 0.017"–0.025.

Note: The 0.017"–0.025" setting is a recommended range and includes the 0.010" setting on the rear drum and the additional 0.007" to 0.015" height from Step 12 (See Figure 58). Some trial-and-error may be needed to find the optimal setting based upon the sandpaper grit size you use (ie, coarse grit = smaller number; fine grit = larger number).

11.Tighten the front pillow bearing lock nuts.

12.Check to make sure that when you tightened the nuts the front drum did not move horizontally, and that the front drum is still parallel with the rear drum, using the small gauge blocks.

—If the gauge blocks are snug between the front and rear drums, go to Step 14.

—If the gauge blocks are not snug betwen the front and rear drums, repeat Step 11 and 12 on Page 39.

13.Calibrate the scale pointer as described on Page 43.

14.Remove all gauge blocks, reinstall the sandpaper on the drums, reinstall the V-belts, and close the pulley and top covers.

	Micro-Adjust
Lock	Knob
Handle

Figure 57. Rear left sanding drum micro-

adjusting knob.

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Figure 58. Rear drum set below front

drum.

SERVICE

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