Delta 31-390 Instruction Manual Download Page 8

ASSEMBLING AUXILIARY ABRASIVE
DRUM AND SPINDLE ASSEMBLY TO
DRIVE PULLEY

The auxiliary abrasive drum and spindle assembly is
furnished as standard equipment with the edge sander
and is used for finish sanding of small contour
workpieces. To assemble the abrasive drum and spindle
assembly, proceed as follows:

NOTE:

The top guard and dust chute assembly has been

removed for clarity.
1. 

DISCONNECT TOOL FROM POWER SOURCE.

2. Align the three holes (A) Fig. 11, in adapter plate (B)
with three holes in top of drive pulley (C) and fasten
adapter plate (B) Fig. 12, to drive pulley with three 5/16-
18 x 3/4" long flat head screws (D).
3. Three abrasive drum spindles are supplied as stand-
ard equipment with the edge sander. Loosen set screw
(E) Fig. 13, in adapter plate (B), and insert the desired
abrasive drum spindle, one of which is shown at (F), into
the adapter plate (B). 

NOTE:

Make certain flat on spindle

(F) is facing set screw (E).
4. Firmly tighten set screw (E) Fig. 14, to fasten drum
spindle (F) in place.
5. Assemble the proper abrasive sleeve (G) Fig. 15, over
the desired drum spindle (F). 

NOTE:

There are three

abrasive sleeves supplied, with inside diameters of 1-
1/2", 2" and 3" which will fit over the abrasive drum
spindles (F) Fig.16 supplied. 

IMPORTANT:

If the

abrasive sleeve (G) will not slide over the spindle drum
(F) Fig. 15, smoothly, loosen spindle nut (H) until abrasive
sleeve (G) fits on spindle drum (F).
6. Tighten spindle nut (H) Fig. 16, to hold abrasive sleeve
(G) firmly on spindle drum.

8

Fig. 12

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Fig. 11

A

B

C

D

B

F

B

E

E

F

G

H

F

H

G

F

Summary of Contents for 31-390

Page 1: ...92 PART NO 406 11 651 0006 03 12 02 Copyright 2002 Delta Machinery To learn more about DELTA MACHINERY visit our website at www deltamachinery com For Parts Service Warranty or other Assistance please...

Page 2: ...y to get caught in moving parts Nonslip footwear is recommended Wear protective hair covering to contain long hair 12 SECURE WORK Use clamps or a vise to hold work when practical It s safer than using...

Page 3: ...WORKPIECE AGAINST THE ROTATION OF THE SANDING SURFACE Hold the workpiece securely on the table 15 USE A DUST COLLECTION SYSTEM 16 CLEAN THE MACHINE AND DUST COLLECTION SYSTEM THOROUGHLY BEFORE AND AF...

Page 4: ...and interchange any two of the three leads that are connected to terminals Ll L2 L3 Fig B 5 Replace cover on the starter box PERMANENTLY CONNECTED TOOLS If the tool is intended to be permanently conn...

Page 5: ...vier the cord EXTENSION CORDS Fig C MINIMUM GAUGE EXTENSION CORD RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC TOOLS Ampere Total Length Gauge of Rating Volts of Cord in Feet Extension Cord 0 6 2...

Page 6: ...DELS ONLY Your edge sander is supplied with magnetic starter controls transformer and overload block LVC the starter box is shipped completely wired to the motor and push button controls However the s...

Page 7: ...elt changing without removing the guard assembly B from the machine To assemble the top guard and dust chute assembly B Fig 8 to the edge sander proceed as follows 1 Place a 1 2 flatwasher C Fig 9 on...

Page 8: ...stand ard equipment with the edge sander Loosen set screw E Fig 13 in adapter plate B and insert the desired abrasive drum spindle one of which is shown at F into the adapter plate B NOTE Make certain...

Page 9: ...emble lockwashers and hex nuts and tighten securely NOTE The top guard and dust chute assembly has been removed for clarity 3 Turn the auxiliary end table D Fig 19 face down on a supporting surface an...

Page 10: ...gle of tilt has been set tighten lock knobs B The tilting table allows for bevel sanding operations to be performed and reduces the amount of friction on the sanding belt when edge sanding certain sha...

Page 11: ...e vertically loosen lock knob A Fig 30 and move the table assembly B up or down as necessary Tighten lock knob A after adjustments are made 3 To adjust the table horizontally loosen locking screw C Fi...

Page 12: ...g belt A Fig 35 must be parallel to the top of the straight platen B If it is not parallel adjust as follows 1 CAUTION DISCONNECT TOOL FROM POWER SOURCE 2 NOTE If the sanding belt A Fig 35 is running...

Page 13: ...The table B should be positioned close to but not touching the sanding belt C It is advisable to raise or lower the table B periodically to prevent spot wear and improve belt life CONTOUR SANDING AROU...

Page 14: ...oceed as follows 1 DISCONNECT TOOL FROM POWER SOURCE 2 Loosen hex nut A Fig 40 until abrasive sleeve B will lift easily off spindle drum C 3 Assemble new abrasive sleeve B Fig 40 on spindle drum C and...

Page 15: ...fitness for purpose or otherwise are expressly disclaimed by Delta Printed in U S A PARTS SERVICE OR WARRANTY ASSISTANCE All Delta Machines and accessories are manufactured to high quality standards...

Page 16: ...61 Los Angeles 3949A East Guasti Road Phone 909 390 5555 Fax 909 390 5554 San Leandro 94577 Oakland 3039 Teagarden Street Phone 510 357 9762 Fax 510 357 7939 FLORIDA Davie 33314 Miami 4343 South State...

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