Operation - Delta 31-780 Instruction Manual

4. Slide the used abrasive sleeve off the sanding drum.
Slide the new abrasive sleeve on(C) Fig. 21.
5. Attach the abrasive sleeve and sanding drum combina-
tion (C) Fig. 20, firmly on the spindle adapter. Fasten with the
arbor screw (removed in STEP 2). Replace the table insert
with the arrows up.
ADJUSTING SPINDLE ASSEMBLY
If excessive play develops in the spindle assembly, or if the machine increases its noise level after extended use, make
the following adjustment to the spindle assembly.
1. DISCONNECT THE TOOL FROM THE POWER SOURCE.
2. Turn the machine over and place it on a firm supporting surface. Be careful not to damage the spindle assembly.
3. Remove the four mounting screws (A) Fig. 22 and remove the case (B) from the machine.
4. IMPORTANT: Shaft (C) Fig. 23, must be positioned inside the center of bracket (D). To adjust, loosen the two lock-
nuts (E) Fig. 23. Tighten or loosen the two adjusting screws (F) as necessary until the shaft (C) is centered inside the
bracket (D), with the adjustment screws (F) contacting the shaft. Tighten the two locknuts (E) Fig. 23.
5. Attach the case with the four screws removed in STEP 3.
A

OPERATION

Fig. 24, illustrates sanding inside curves.
IMPORTANT: Always sand against the rotation of the
sanding drum.
The oscillating action of the sanding drum minimizes
score marks and prevents clogging of the sanding drum,
providing faster, smoother sanding and increasing the
life of the sanding sleeve.
Fig. 22
A
9
C
Fig. 21
F
C
D
E
Fig. 23
Fig. 24