Delta SA350K User Manual
Bench
Oscillating
Spindle Sander
SA350K
Ponceuse
d’établi
à broche
oscillante
Lijadora de eje
oscilante de
banco
Instruction Manual
Manuel d’utilisation
Manual de instrucciones
A20932_04-23-07_Rev. 2
Copyright © 2007 Delta Machinery
FRANÇAIS (12) ESPAÑOL (22)
www.deltamachinery.com
(800) 223-7278 - US
(800) 463-3582 - CANADA
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS ....................2
SAFETY GUIDELINES - DEFINITIONS .....................2
GENERAL SAFETY RULES .......................................3
ADDITIONAL SPECIFIC SAFETY RULES ................4
FUNCTIONAL DESCRIPTION ...................................6
CARTON CONTENTS ...............................................6
ASSEMBL Y .................................................................7
OPERA TION ...............................................................9
TROUBLESHOOTING ................................................10
MAINTENANCE ..........................................................10
SERVICE .....................................................................10
ACCESSORIES ...........................................................11
WARRANTY ................................................................11
FRANÇAIS ..................................................................12
ESPAÑOL ....................................................................22
IMPORTANT SAFETY INSTRUCTIONS
Read and understand all warnings and operating instructions before using any tool
or equipment. When using tools or equipment, basic safety precautions should always be followed
to reduce the risk of personal injury. Improper operation, maintenance or modification of tools or
equipment could result in serious injury and property damage. There are certain applications for which
tools and equipment are designed. Delta Machinery strongly recommends that this product NOT be modified and/or
used for any application other than for which it was designed.
If you have any questions relative to its application DO NOT use the product until you have written Delta Machinery and
we have advised you. Contact us online at www.deltamachinery.com or by mail at Technical Service Manager, Delta
Machinery, 4825 Highway 45 North, Jackson, TN 38305. In Canada,125 Mural St. Suite 300, Richmond Hill, ON, L4B 1M4)
Information regarding the safe and proper operation of this tool is available fr om the following sources:
• Power Tool Institute, 1300 Sumner Avenue, Cleveland, OH 44115-2851or online at www.powertoolinstitute.org
• National Safety Council, 1121 Spring Lake Drive, Itasca, IL 60143-3201
• American National Standards Institute, 25 W est 43r d Street, 4 floor, New York, NY 10036 www .ansi.org - ANSI 01.1
Safety Requirements for Woodworking Machines
• U.S. Department of Labor regulations www .osha.gov
SAVE THESE INSTRUCTIONS!
SAFETY GUIDELINES - DEFINITIONS
It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY
and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information.
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
Used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided,
may result in property damage.
CALIFORNIA PROPOSITION 65
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities
contains chemicals known to cause cancer, birth defects or other reproductive harm. Some
examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, al ways
wear NIOSH/OSHA approved, properly fit ting face mask or res pi ra tor when us ing such tools.
2
1. FOR YOUR OWN SAFETY, READ THE INSTRUCTION
MANUAL BEFORE OPERATING THE MACHINE. Learning
the machine’s application, limitations, and specific hazards
will greatly minimize the possibility of accidents and injury.
2. WEAR EYE AND HEARING PROTECTION. ALWAYS
USE SAFETY GLASSES. Everyday eyeglasses are NOT
safety glasses. USE CERTIFIED SAFETY EQUIPMENT.
Eye protection equipment should comply with ANSI Z87.1
standards. Hearing equipment should comply with ANSI
S3.19 standards.
3. WEAR PROPER APPAREL.
3
ADDITIONAL SPECIFIC SAFETY RULES
Failure to follow these rules may result in serious personal injury.
1. DO NOT OPERATE THIS MACHINE until it is
completely assembled and installed according to
the instructions. A machine incorrectly assembled
can cause serious injury.
2. OBTAIN ADVICE from your supervisor, instructor,
or another qualified person if you are not thoroughly
familiar with the operation of this machine.
3. FOLLOW ALL WIRING CODES and recommended
electrical connections to prevent shock or
electrocution.
4. NEVER TURN THE MACHINE “ON” before clearing
the table/work area of all objects (tools, scraps of
wood, etc.).
5. NEVER TURN THE MACHINE “ON” with the work-
piece contacting the abrasive surface.
6. SECURE THE MACHINE to a supporting surface.
Vibration can cause the machine to slide, walk, or
tip over.
7. REPLACE SLEEVES WHEN WORN OR
DAMAGED. A torn or damaged sleeve could be
unexpectedly expelled from the machine if not
replaced
8. PROPERLY SECURE SANDING DRUM on spindle
before operating.
9. DO NOT USE THE MACHINE for wet sanding
applications.
10. CLEAN THE MACHINE and dust collector
thoroughly when processing different types of
workpieces (wood, steel, or aluminum). Combining
wood and metal dust can create an explosion or fire
hazard.
11. TO REDUCE THE RISK OF FIRE, do not sand or
polish magnesium.
12. HOLD WORKPIECE FIRMLY ON THE SANDER
TABLE. To prevent loss of control use a solid grip.
13. INSPECT MATERIALS FOR DEFECTS. Knots and
splinters can be thrown from the machine with great
force. Make sure defective materials are not used
on this spindle sander.
14. FOREIGN OBJECTS SUCH AS NAILS AND
STAPLES should be removed before sanding.
15. AVOID AWKWARD OPERATIONS AND HAND
POSITIONS. A sudden slip could cause a hand to
contact the abrasive sleeve.
16. KEEP TABLE INSERT IN PLACE. Use correctly
sized table insert for each sanding sleeve to reduce
risk of fingers being pinched or material being
pulled down.
17. ALWAYS FEED WORKPIECE AGAINST the
direction of the sanding belt rotation.
18. DO NOT SAND very small or very thin workpieces
that cannot be safely controlled. Loss of control of
the workpiece can result in injury.
19. TO MAINTAIN CONTROL, properly support long or
wide work-pieces.
20. NEVER PERFORM LAYOUT, ASSEMBLY, OR
SET-UP WORK on the table/work area when the
machine is running. A sudden slip could cause a
hand to move into the abrasive surface.
21. TURN THE MACHINE “OFF”, disconnect the
machine from the power source, and clean the
table/work area before leaving the machine. LOCK
THE SWITCH IN THE “OFF” POSITION to prevent
unauthorized use.
22. ADDITIONAL INFORMATION regarding the safe
and proper operation of power tools (i.e. a safety
video) is available from the Power Tool Institute,
1300 Sumner Avenue, Cleveland, OH 44115-2851
(www.powertoolinstitute.com). Information is also
available from the National Safety Council, 1121
Spring Lake Drive, Itasca, IL 60143-3201. Please
refer to the American National Standards Institute
ANSI 01.1 Safety Requirements for Woodworking
Machines and the U.S. Department of Labor OSHA
1910.213 regulations.
SAVE THESE INSTRUCTIONS.
Refer to them often and use them to instruct others.
4
POWER CONNECTIONS
A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should
be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have
3-prong grounding type plugs and matching receptacle which will accept the machine’s plug. Before connecting the
machine to the power line, make sure the switch (s) is in the “OFF” position and be sure that the electric current is of
the same characteristics as indicated on the machine. All line connections should make good contact. Running on low
voltage will damage the machine.
Do not expose the machine to rain or operate the machine in damp locations.
MOTOR SPECIFICATIONS
Your machine is wired for 120 volt, 60 HZ alternating current. Before connecting the machine to the power source, make
sure the switch is in the “OFF” position.
GROUNDING INSTRUCTIONS
This machine must be grounded while in use to protect the operator from electric shock.
1. All grounded, cor d-connected machines:
In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to
reduce the risk of electric shock. This machine is equipped with an electric cord having an equipment-grounding
conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.
Improper connection of the equipment-grounding conductor can result in risk of electric shock. The conductor with
insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor.
If repair or replacement of the electric cord or plug is necessary, do not connect the equipment-grounding conductor
to a live terminal.
Check with a qualified electrician or service personnel if the grounding instruction are not completely understood, or
if in doubt as to whether the machine is properly grounded.
Use only 3-wire extension cords that have 3-prong grounding type plugs and matching 3-conductor receptacles that
accept the machine’ s plug, as shown in Fig. A.
Repair or replace damaged or worn cord immediately.
2. Grounded, cord-connected machines intended for use on a supply circuit having a nominal rating less than
150 volts:
If the machine is intended for use on a circuit that has an outlet that looks like the one illustrated in Fig. A, the
machine will have a grounding plug that looks like the plug illustrated in Fig. A. A temporary adapter, which looks like
the adapter illustrated in Fig. B may be used to connect this plug to a matching 2-conductor receptacle as shown
in Fig. B, if a properly grounded outlet is not available. The temporary adapter should be used only until a properly
grounded outlet can be installed by a qualified electrician. The green-colored rigid ear, lug, and the like, extending
from the adapter must be connected to a permanent ground such as a properly grounded outlet box. Whenever the
adapter is used, it must be held in place with a metal screw .
NOTE: In Canada, the use of a temporary adapter is not permitted by the Canadian Electric Code.
In all cases, make certain that the receptacle in question is properly grounded. If you are not sure,
have a qualified electrician check the receptacle.
GROUNDED OUTLET BOX
CURRENT
CARRYING
PRONGS
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
Fig. A Fig. B
GROUNDED OUTLET BOX
GROUNDING MEANS
ADAPTER
5
EXTENSION CORDS
Use proper extension cords. Make
sure your extension cord is in good condition and is a
3-wire extension cord which has a 3-prong gr ounding
type plug and matching receptacle which will accept
the machine’s plug. When using an extension cord,
be sure to use one heavy enough to carry the current
of the machine. An undersized cord will cause a
drop in line voltage, resulting in loss of power and
overheating. Fig. D-1 shows the correct gauge to use
depending on the cord length. If in doubt, use the
next heavier gauge. The smaller the gauge number,
the heavier the cord.
FUNCTIONAL DESCRIPTION
FOREWORD
The Delta Model SA350K has a large 18" diameter castiron table to support large workpieces. This machine has
a heavy-duty motor assembly with a 1/4 H.P. direct drive
induction motor for quiet, and smooth operation.
MINIMUM GAUGE EXTENSION CORD
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Total
Ampere
Rating Volts
0-6 120
0-6 120 25-50 16 AWG
0-6 120 50-100 16 AWG
0-6 120 100-150 14 AWG
6-10 120
6-10 120 25-50 16 AWG
6-10 120 50-100 14 AWG
6-10 120 100-150 12 AWG
10-12 120
10-12 120 25-50 16 AWG
10-12 120 50-100 14 AWG
10-12 120 100-150 12 AWG
12-16 120
12-16 120 25-50 12 AWG
12-16 120
Length of
Cord in
Feet
up to
25 18 AWG
up to
25 18 AWG
up to
25 16 AWG
up to
GREATER THAN 50 FEET NOT RECOMMENDED
Fig. D-1
Gauge of Extension
Cord
25 14 AWG
NOTICE: The photo on the manual cover illustrates the current production model. All other illustrations contained in the
manual are representative only and may not depict the actual labeling or accessories included. These are intended to
illustrate technique only .
1. Bench Oscillating Spindle Sander
2. 3/4" Sanding Drum & Abrasive Sleeve
3. Table insert for the 3/4" Assembly
4. Table insert for the 3" Assembly
5. Table insert for the 2"" Assembly
6. Table insert for the 1-1/2" Assembly
7. Table insert for the 1" Assembly
8. 1" Sanding Drum & Abrasive Sleeve
9. 1-1/2 Sanding Drum & Abrasive Sleeve
10. 2" Sanding Drum & Abrasive Sleeve
11. 3" Sanding Drum & Abrasive Sleeve
12. 1-1/4" O.D. Drum Washer
13. 1-3/4" O.D. Drum Washer
14. 2-3/8" O.D. Drum Washer (2)
15. Arbor Screw
16. 3/16" Hex Wrench
17. 1/2" Socket Wrench
18. Spindle Adapter
19. Dust Bag
UNPACKING AND CLEANING
CARTON CONTENTS
2
1
14
19
4
3
11
18
10
17
5
6
9
167
7
8
12
13
15
Carefully unpack the machine and all loose items from the shipping container(s). Remove the rust-preventative oil from
unpainted surfaces using a soft cloth moistened with mineral spirits, paint thinner or denatured alcohol.
Do not use highly volatile solvents such as gasoline, naphtha, acetone or lacquer thinner for cleaning your
machine.
After cleaning, cover the unpainted surfaces with a good quality household floor paste wax.
6
ASSEMBLY
For your own safety, do not connect the machine to the power source until the machine is
completely assembled and you read and understand the entire instruction manual.
ASSEMBLY TOOLS REQUIRED
3/16" Hex Wrench (Supplied)
1/2" Socket Wrench (Supplied)
7/16' open-end wrench
ASSEMBLY TIME ESTIMATE
Assembly for this machine takes less than 1/2 hour.
1. Carefully turn the machine upside down. Place it on a clean, firm, supporting surface.
2. Use a flat-head screwdriver or similar device to remove the plug (A) Fig. 1 to gain access to socket-head screw
(not shown).
3. Carefully place the machine on its side (Fig. 2). Attach the spindle adapter (B) Fig. 2 to the motor shaft (A) by
turning the spindle adapter counter-clockwise on the shaft.
NOTE: Motor shaft has a left-hand thread.
4. Place a 7/16" open-end wrench (D) Fig. 3 (not sup plied) on the flats of spindle adapter (B). Insert a 3/16" hex
wrench (E) Fig. 3 (supplied) into the socket-head screw located where the plug (A) Fig. 1 was removed in STEP 2.
5. Hold the hex wrench (E) Fig. 4 to prevent the motor shaft from turning. Tur n the wrench (D) coun ter -clock wise to
fasten the spindle adapter on the motor shaft.
6. Install the plug (A) Fig. 1 that was removed in STEP 2.
A
A
FIG. 1
FIG. 2
B
FIG. 3
B
D
E
7
D
FIG. 4
ATTACHING THE SANDING DRUM, ABRASIVE SLEEVE AND TABLE INSERT
E
C
FIG. 7
D
A
F
F
G
FIG. 5
G
D
FIG. 6
G
C
D
E
C
H
FIG.8
1. Place the 2-3/8" diameter washer (A) on the spindle.
2. Select the correct abrasive sleeve for your workpiece.
3. Slide that abrasive sleeve (C) Figs. 5 and 6 over the matching sanding drum (D) Figs. 5 and 6. Position this
assembly on the spindle adapter. Place the matching washer (A) Fig. 5 (largest, but not larger than the rubber
drum) on top of the assembly and fasten it with a 5/16" screw (E) Fig. 5, using the socket wrench (F) Fig. 7.
NOTE: Turn the screw (E) Fig. 5 counter-clockwise to tighten and clockwise to loosen.
4. Place the table insert (G) Figs. 7 & 8 over the abrasive sleeve (C) and in the cut-out on the table.
NOTE: Arrows on the table insert indicate the top surface.
5. Use the compartments (H) Fig. 8 on the sides of the sander for storing workpieces or accessories.
ATTACHING THE DUST BAG
To attach the dust bag (B) Fig. 10 to the 1-1/2"dust chute (A) Fig. 9, squeeze the spring clamp on the dust bag and
slide it over the dust chute. Release the clamp.
B
A
FIG. 9
FIG. 10
FASTENING THE SANDER TO A SUPPORTING SURFACE
If the machine has any tendency to tip over, slide, or
walk on the supporting surface, you must secure the
machine base to the supporting surface. Use the four
holes, three of which are shown at (A) Fig. 11 to attach
the machine to the supporting surface.
A
FIG. 11
8
OPERATION
OPERATIONAL CONTROLS AND ADJUSTMENTS
STARTING AND STOPPING THE SANDER
The on/off switch (A) Fig. 12 is located on the sander
base. To tur n the sander “ON”, move the switch up to
the “ON” position. To turn the sander “OFF”, move the
switch down to the “OFF” position.
LOCKING THE SWITCH IN THE “OFF” POSITION
IMPORTANT: When the machine is not in use, the
switch should be locked in the "OFF" position to
prevent unauthorized use. To lock the machine, grasp
the switch toggle (B) and pull it out of the switch (Fig. 13).
With the switch toggle (B) removed, the switch will not
operate. However, should the switch toggle be removed
while the sander is running, the machine can be turned
"OFF," but cannot be restarted without re-inserting the
switch toggle (B).
A
FIG. 11
B
ADJUSTING THE SPINDLE ASSEMBLY
If excessive play develops in the spindle assembly, or
if noise level increases after extended use, adjust the
spindle assembly.
FIG. 13
A
A
B
C
D
E
F
9
MACHINE USE
Sanding inside curves is illustrated in Fig. 16.
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. 16
TROUBLESHOOTING
For assistance with your machine, visit our website at www.deltamachinery.com for a list of service centers or call the
DELTA Machinery help line at 1-800-223-7278 (In Canada call 1-800-463-3582).
MAINTENANCE
KEEP MACHINE CLEAN
Periodically blow out all air passages with dry compressed air. All plastic parts should be cleaned with a soft damp
cloth. NEVER use solvents to clean plastic parts. They could possibly dissolve or otherwise damage the material.
10
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