10
8. Lift tensioning lever to tighten sanding belt on
drums.
9. Install guard (75) and secure with screw (76).
10. Install guard (96) and secure with eight screws
(97).
11. Connect electrical power and operate machine
to check operation.
12. If belt does not track properly, adjust tracking
(
sect. 9.1
).
11.4
Replacing sanding disc
1. Disconnect
electrical
power.
2. Loosen screw (65). Remove disc table (60).
3. Remove four screws (56) and plate (55) from
disc shroud (53).
4. Insert a long T-handle Allen wrench through
side opening in shroud (53) and into set screw
(57). Loosen disc set screw (57) and remove
disc (58).
Use care when using knife to
separate sanding disc (59) from machine disc
(58). Injury from the knife may occur if the knife
slips or if sanding disc should suddenly come
free.
5. Using a knife, slowly work tip of knife blade
under sanding disc (59). Slowly work tip around
circumference of disc (58). Continue to work
around the circumference until sanding disc can
be separated by hand from disc (58).
6. Remove paper backing from replacement
sanding disc (59). Place sanding disc (59) on
machine disc (58). Make sure sanding disc is
placed evenly at outside diameter of disc (58).
7. Press on sanding disc to remove any entrapped
air and to make sure sanding disc is adhering to
disc (58).
8. Install disc (58) onto shaft (16). Position disc on
the shaft to provide clearance between plate
(55) and sanding disc. Tighten set screw (57).
NOTE:
There is a close fit between edge of disc
(58) and disc shroud. To ease installation and
positioning of disc, use an L-shaped tool (such
as an Allen wrench) under outer edge of disc to
support and position the disc while tightening
set screw.
9. Install plate (55) and secure with four screws
(56). Check for clearance between plate (55)
and sanding disc.
10. Install table (60) onto rod (74). Position table so
it is level and tighten screw (65) against rod
(74).
11. Connect electrical power and operate machine
to check operation.
11.5
Replacing V-belts
1. Disconnect
electrical
power.
2. Remove sanding belt table.
3. Remove sanding disc table.
4. Remove sanding disc and shroud.
5. Remove pulley cover. Loosen set screw in
pulley.
6. With second person holding belt housing,
alternately loosen and remove two screws.
7. Remove V-belt from pulley (11). Remove pulley
from shaft while separating assembled belt
housing from machine base.
8. Remove key from sanding belt drum shaft.
9. Loosen set screw in pulley (20).
10. Remove pulley. While removing pulley, slip V-
belts from pulley.
11.
Remove four screws from base. With
assistance of a second person, lift base from
stand.
NOTE:
Place base on bench. As an alternative,
the stand may be used to support the base
while removing drive motor screws.
12. Place base on bench with underside of base
facing up.
13. Remove two hex head screws, two nuts, and
two washers from motor base on shaft side of
motor.
14. Loosen (but do not remove) two hex bolts, two
nuts, and two washers on the side of motor
base opposite motor shaft.
15. Tip motor enough to provide clearance between
end of shaft and wall of base. Remove motor
drive belt.
16. With base still on the bench, slip V-belt (15) over
end of idler shaft.
NOTE:
Install V-belt for sanding belt first,
followed by motor V-belt.
17. Install replacement V-belt over end of motor
shaft.
18. Install two hex bolts, two nuts, and two washers
in the motor base on the shaft side of motor.
Tighten all four hex nuts and hex head screws.
19. Install key in idler shaft with keyway facing up.
Install pulley (20) on idler shaft.
20. Install motor V-belt (18) in outermost groove of
pulley (20) and on pulley (18) on motor shaft.
21. Position motor belt (18) on idler shaft so it is
parallel with inner wall of base. Tighten set
screw in pulley (20).
22. Place assembled base on stand. Secure with
four screws, washers, nuts.
