7
OPERATION (CONTINUED)
BELT TRACKING
Refer to Figures 10 and 11.
Belt (Ref. No. 1) should ride centered on drive and idler drums (Ref.
Nos. 11 and 44). The sander is shipped with the tracking mecha-
nism properly adjusted. However, if adjustment is necessary:
•
Loosen knob (Ref. No. 33) on either side of belt housing (Ref. No.
34).
•
Turn the unit on.
•
Insert a
1
⁄
8
“ or
5
⁄
32
“ hex wrench into the hole on adjusting nut
(Ref. No. 42 or 47) on either side.
•
Turn the adjusting nut to the right to move belt toward you or
turn the adjusting nut to the left to move belt away from you.
•
Make sure belt rides on the center of drive and idler drums.
•
Turn the unit off.
•
Tighten knobs on both sides of belt housing to secure tracking
adjustment.
REPLACING BELT
Refer to Figures 10 and 11.
•
Sanding belt must be replaced when worn, torn, or glazed.
•
Push up the belt tension handle (Ref. No. 31) to release belt
tension.
•
Loosen knob (Ref. No. 46) securing belt guard (Ref. No. 50).
•
Loosen and remove four knobs (Ref. No. 49) from the rear of the
sander.
•
Remove belt cover (Ref. No. 48).
•
Remove knob and bracket (Ref. Nos. 2 and 3).
•
Slide old belt off the drive and idler drums (Ref. Nos. 11 and 44).
NOTE:
There may be an arrow on the inside of the belt. The arrow
should point down toward the belt table to ensure that the splice
in the belt will not come apart.
•
Slide new belt over the drive and idler drums; center belt on
drums.
•
Push the belt tension handle toward the drive drum to tension
belt.
•
Replace belt cover using knobs.
•
Replace belt guard and bracket.
•
Wear a protective glove and manually rotate the belt by hand
to check tracking. If tracking needs to be adjusted, follow steps
described in “Belt Tracking”.
•
Make sure belt rides centered on drive and idler drums.
POSITION DISC TABLE
Refer to Figure 11.
•
Disc table (Ref. No. 4) is adjustable from 0° to 45° outward and
0° to 20° inward.
•
To adjust the disc table position, loosen the two handles (Ref.
No. 58) from either side of the disc table.
•
Use the scale on disc table trunnions to set table at the desired
angle.
•
Secure disc table position by tightening the two handles.
ABRASIVE DISC FINISHING
•
Abrasive disc sanding is well suited for finishing small flat
surfaces and convex edges.
•
Move workpiece across down side (left) of abrasive disc.
•
Abrasive disc moves fastest and removes more material at
outer edge.
•
For accuracy, use miter gauge.
REPLACING ABRASIVE DISC
Refer to Figures 11 and 12.
•
Loosen and remove four bolts (Figure 11, Ref. No. 24) from disc
cover plate (Figure 11, Ref. No. 68).
•
Loosen two top bolts (Figure 12, Ref. No. 25) from dust
collection port (Figure 12, Ref. No. 32).
•
Remove disc cover plate.
•
Remove old abrasive by peeling it from the aluminum disc.
Removing aluminum disc is not necessary.
•
Clean aluminum disc if necessary. Select the proper abrasive
disc and apply to aluminum disc.
·
•
Additional abrasive discs are available.
•
Replace disc cover plate.
•
Tighten bolts on dust collection port.
•
Replace four bolts to secure disc cover plate.
MAINTENANCE
WARNING:
Make certain that the unit is disconnected from
power source before attempting to service or remove any compo-
nent.
REPLACING V-BELT
Refer to Figures 11 and 12.
•
Turn sander off and disconnect it from power source.
•
Loosen and remove two handles (Figure 11, Ref. No. 58) from
either side of the disc table (Figure 11, Ref. No. 69).
•
Slide out disc table from the disc guard (Figure 11, Ref. No. 61).
•
Loosen the set screw (Figure 11, Ref. No. 65) securing the alu-
minum disc (Figure 11, Ref. No. 66). Use the hole on the top of
disc guard to locate and loosen set screw. Do not remove set
screw.
•
Loosen and remove four bolts (Figure 11, Ref. No. 24) from disc
cover plate (Figure 11, Ref. No. 68).
•
Loosen and remove four bolts (Figure 12, Ref. No. 25) from dust
collection port (Figure 12, Ref. No. 32).
•
Remove disc cover plate and dust collection port.
•
Slide out and remove aluminum disc.
•
Open cabinet door (Figure 12, Ref. No. 53).
•
Turn knob (Figure 12, Ref. No. 52) on bracket (Figure 12, Ref. No.
51) to release tension on V-belt (Figure 11, Ref. No. 64).
•
Replace V-belt. Use parts list to order the appropriate V-belt.
•
Tighten knob on bracket to tension the V-belt.
•
Do not over tension the V-belt. Excessive tension on V-belt will
reduce life of the belt and function of the tool. A belt is proper-
ly tensioned when light pressure applied to midpoint of the
belt produces about
1
/
2
” deflection.
Palmgren Operating Manual & Parts List
81110
Figure 10 - Belt Tracking
Summary of Contents for 81110
Page 24: ...NOTES NOTAS...