27
Replacing Conveyor Belts
To replace the conveyor belt, the conveyor assembly
must be removed from the machine. Raise the drum/
brush carriage to its highest position using the
height adjustment handle. Turn off power source
to machine. Unplug main drive motor and inverter
from receptacle (in gear motor assembly). Loosen the
conveyor take-up screws (Fig. 9) to relieve belt tension
and slide the driven roller fully inward. Remove the
two bolts (inboard side) that attach the conveyor
assembly to the base (see Fig. 11A & 17). Remove
the two nuts and washers (outboard side) (Fig. 7 &
18). Lift the conveyor and remove it from the sander.
Stand conveyor on motor side. Avoid tearing the belt
on any edges underneath the conveyor bed during
removal. Reverse the procedure for re-installation.
Re-install the conveyor bed to sander.
Conveyor Belt Tension:
To adjust the tension of
the conveyor belt, first adjust the take-up screw nut
(Fig. 9) on both sides of the conveyor to obtain
approximately equal tension on both sides of the belt
when taut. Insufficient belt tension will cause slippage
of conveyor belt on the drive roller during sanding
operation. The conveyor belt is too loose if it can
be stopped by hand pressure applied directly to the
top of the conveyor belt. Excessive belt tension can
result in bent rollers, premature wearing of the bronze
bushings or conveyor belt
Conveyor Belt Tracking:
Belt tracking adjustments
are made while the conveyor belt is running. After
the proper belt tension is obtained (see above), turn
the conveyor unit on and set it at the fastest speed
setting. Watch for a tendency of the conveyor belt to
drift to one side of the conveyor. To adjust the belt
tracking, tighten the take-up screw nut (Fig. 9) on the
side the belt is drifting toward, and loosen the take-up
screw nut on the opposite side. Adjusting the take-up
screw nuts on either side of the conveyor allows belt
tracking adjustments to be made without affecting
belt tension. Note: Adjust the take-up screw nuts
only 1/4 turn at a time. Then allow time for the belt
to react to the adjustments before proceeding further.
Avoid over-adjustments.
Fig. 17 Inboard conveyor attachment bolts.
Fig. 18
Summary of Contents for SuperMax 19-38 Combo
Page 1: ...19 38 Combo Brush Drum Sander Owner s Manual Lagunatools com SKU 219383...
Page 31: ...31...
Page 34: ...34 34...
Page 36: ...36...
Page 39: ...39...
