Craftsman 315.220380 - Manual (Page 30)

ASSEMBLY
Loose carriage bearings permit the blade to wander
slightly while cutting, which will result in a poor cut
and more wear and tear on the saw. Use the following
steps to check for tightness and to then adjust the
bearings if needed.
■ On the left side of the arm, remove the carriage
lock knob, the carriage cover screws, and the
carriage cover.
■ With one hand, grip the front bearing hard to keep it
still, and pull the carriage forward with the other
hand. The bearing should turn. If it stays still as the
carriage is moved, it needs to be adjusted.
CARRIAGE BEARING
ADJUSTING THE CARRIAGE BEARINGS
See Figures 21A and21B.
■ Use a 9/16 in. wrench to hold the eccentric screw
(top of bearing) and a 1/2 in. wrench to loosen the
nut below the bearing.
■ Turn the eccentric screw a partial turn as needed to
tighten the bearing.
■ Retighten the nut and repeat the second step to
test the tightness. Adjust it so the bearing turns
even against resistance when the carriage is
moved - but not so much that the carriage is difficult
to move and return it to its rear position.
■ Repeat for the left rear bearing.
Note: Adjust bearings on the left side only. Bearings
on the right side do not adjust.
■ Replace the carriage cover, carriage cover screws,
and carriage lock knob. :
ECCENTRIC SCREW
9/16 In.
WRENCH
GRASP AND HOLD
CARRIAGE BEARING Fig. 21A
WRENCH
Fig. 21B
CRRmHHN* RADIAL SAW 315.220380 30