Craftsman 315.117120 Owner's Manual page 7

OPERATION
TO ADJUST SANDING BELT TRACKING
See Figure 10.
TO adjust sanding belt tracking, connect sander to power
supply. Hold sander as shown in figure 1O. pultswitchtdgger
and release immediately.
NOTE: This position is for adjustments only. Sanding belt
should not be in contact with workpiece or any foreign
objects when making belt tracking adjustments,
Observe tracking of sanding belt, If the sanding belt rur_s
inward,slOWly turnthe trackingscrew clockwise. Itthe sanding
belt runsoutward, slowly turnthe tracking screw counterclock-
wise,This should be done untilyouare sure belt willnot runoff
sander, or come in contact withintemal pads, After inslallinga
new sanding belt, it may become necessary to change the
adjustmentseveral times untilthe belt becomes pUable.
When you are sure the beltwill not rubagainst internal pads,
start your sander and fine adjust the tracking screw untilthe
belt stabilizes. See Figure 10.
When correctly adjusted, the outer edge of the bch will be
even with the outer edge of the platen assembly. Belt lifewill
be greatly increased ifa few seconds are spent adjustingthe
belt tracking,
REPLACE TORN SANDING BELTS IMMEDIATELY.
NOTE: The front pulley of your sander was not designed for
contour sanding. Sanding on the front pulley could cause
irregularity in sanding belt tracking.
SANDING BELT
TO PLACE TENSION ON SANDING
BELT, PRESS OR TAP FRONT PULLEY
Fig. 8
Page 7
Fig. 9
TO ADJUST SANDING BELT TRACKING:
TURN TRACKING SCREW AS SHOWN Fig. 10