-38-
W1772/W1773 37" Drum Sander
SE
RV
IC
E
Adjusting.Drum.Height.&.Drum-to-Conveyor.
Parallelism.
The rear drum can be adjusted parallel to the conveyor
belt in fine increments at the pillow bearings with the
micro-adjust knobs, or the front drum can be adjusted
parallel to the conveyor with the set screws on the pillow
bearings. If, after performing the following procedure, you
cannot adjust the drums parallel to the conveyor belt, it
is possible that the conveyor table needs further adjust-
ment. In that case, follow instructions on
Page.42.
for
.
adjusting the table parallel to the drums at the table lift
screws.
Keep in mind that having the drums parallel to the top of
the conveyor belt (see
Figure.54
) is critical to the sanding
operation. Take care to adjust the drums parallel to the
conveyor surface within 0.002" from one side to the other.
To.adjust.the.rear.drum.height.and.adjust.the.drums.
parallel.to.the.conveyor.belt,.do.these.steps:
1.
DISCONNECT POWER TO THE SANDER!
2.
Open the top and pulley covers, remove the V-belts,
and remove sandpaper from the drums for best
results.
3.
Place the gauge blocks (refer
Page.30
) on the convey-
or table and position them under the drums, as shown
in
Figure.55
.
4.
Raise the table up until the gauge blocks are approxi-
mately 0.010" below the rear drum, checking with a
feeler gauge. This setting will be used to determine
rear drum-conveyor bed parallelism.
Note:
Each full
turn of the table height handwheel raises the conveyor
table approximately 0.020".
(Front View)
CORRECT
INCORRECT
B
A
B
A
B
=
A
=
A
B
(Within 0.002" side-to-side)
Sanding Drum
Sanding Drum
Conveyor Belt
Conveyor Belt
Figure.54.
Drum parallel to conveyor belt.
Figure.55
. Gauge blocks under drum
rollers.
Continued on next page
