RIKON Power Tools 50-142 - Manual (Page 14)

Adjustments
14
Squaring Disc Table
To square the sanding disc table:
1. DISCONNECT THE SANDER FROM
POWER!
2. Place a machinist's square or other 90°
measuring tool against the disc table and
sanding disc (see Figure 31).
3. Loosen the table lock handle, adjust the table
square with the sanding disc, then re-tighten the
table lock handle.
4. Loosen the Phillips head screw on the angle
pointer, position the red scale pointer over the
"0" mark on the angle scale, then retighten
the screw.
Fig.31
Tensioning/Replacing V-Belt
To adjust the V-belt tension:
1. DISCONNECT THE SANDER FROM
POWER!
2. Remove the disc table, dust port, dust
cover, and V-belt safety cover.
3. Lay the sander on its back, and loosen (but
do not remove) the two cap screws securing
the belt housing assembly.
4. Position the belt housing assembly so there
is about 1⁄4" V-belt deflection when moderate
pressure is applied to the V-belt between the
pulleys (see Figure 10 on Page 14)—then
fully tighten the cap screws to secure the belt
housing assembly in place.
5. Check the V-belt tension and re-adjust if
necessary.
6. Re-install the V-belt safety cover, dust cover,
dust port, and disc table.
7. Use same procedure to replace the belt if
worn.
Belt Housing
Assembly
Base
Fig.32
Fig.33