Central Machinery 43468 Set Up And Operating Instructions Manual

DISC SANDER - 12 INCH

43468

SET UP AND OPERATING INSTRUCTIONS

Distributed exclusively by Harbor Freight Tools®.

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our website at: http://www.harborfreight.com

Read this material before using this product.

Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Copyright© 2000 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight
Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual
product may differ slightly from the product described herein. Tools required for assembly and service may not
be included.

For technical questions or replacement parts, please call 1-800-444-3353.

Cover Revised 09b

Specications

Motor 120 V~ / 60 Hz / 1.25 HP; 1750 RPM
Power Switch On/Off with removable locking key
Power Cord 6 Foot, 3-prong
Sanding Surface 12” Disc (one 80 grit disc supplied)
Table 16-3/8 (L) x 6-7/8 (W) inches;

Tilt: 0 ~ 30° and 0 to 50° in 5° increments

Height: 7-5/8 inches
Mitre Gauge 90° ~ 30° left and right in 1° increments
Vacuum Port 2.8 inches (O.D.)
Weight 83.2 lb.

Note: Performance of this tool may vary depending on variations in local line voltage. Ex-

tension cord usage may also affect tool performance.

Save This Manual

You will need the manual for the safety warnings and precautions, assembly instructions,
operating and maintenance procedures, parts list and diagram. Keep your invoice with this
manual. Write the invoice number on the inside of the front cover. Keep the manual and
invoice in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to reduce

the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

Keep work area clean1. . Cluttered areas invite injuries.
Observe work area conditions2. . Do not use machines or power tools in damp or wet

locations. Don’t expose to rain. Keep work area well lighted. Do not use electrically

powered tools in the presence of ammable gases or liquids.

Keep children away3. . Children must never be allowed in the work area. Do not let
them handle machines, tools, or extension cords.

Store idle equipment4. . When not in use, tools must be stored in a dry location to
inhibit rust. Always lock up tools and keep out of reach of children.

Do not force tool5. . It will do the job better and more safely at the rate for which it
was intended. Do not use inappropriate attachments in an attempt to exceed the tool
capacity.

Use the right tool for the job6. . Do not attempt to force a small tool or attachment to
do the work of a larger industrial tool. There are certain applications for which this tool
was designed. Do not use a tool for a purpose for which it was not intended.

Dress properly7. . Do not wear loose clothing or jewelry as they can be caught in mov-
ing parts. Protective, electrically non-conductive clothes and non-skid footwear are
recommended when working. Wear restrictive hair covering to contain long hair.

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REV 09b

Use eye and ear protection8. . Always wear ANSI approved impact safety goggles.

Wear a full face shield if you are producing metal lings or wood chips. Wear an ANSI

approved dust mask or respirator when working around metal, wood, and chemical
dusts and mists. Wear ear protection when sanding for long periods.

Do not overreach9. . Keep proper footing and balance at all times. Do not reach over
or across running machines.

Maintain tools with care10. . Keep tools sharp and clean for better and safer perfor-
mance. Follow instructions for lubricating and changing accessories. Inspect tool
cords periodically and, if damaged, have them repaired by an authorized technician.

Disconnect power11. . Unplug when not in use.
Remove adjusting keys and wrenches12. . Check that keys and adjusting wrenches

are removed from the tool or machine work surface before plugging it in.
Avoid unintentional starting13. . Be sure the switch is in the Off position when not in

use and before plugging in.
Stay alert14. . Watch what you are doing, use common sense. Do not operate any tool

when you are tired.
Check for damaged parts15. . Before using any tool, any part that appears damaged

should be carefully checked to determine that it will operate properly and perform its
intended function. Check for alignment and binding of moving parts; any broken parts

or mounting xtures; and any other condition that may affect proper operation. Any
part that is damaged should be properly repaired or replaced by a qualied technician.

Do not use the tool if any switch does not turn On and Off properly.
Guard against electric shock16. . Prevent body contact with grounded surfaces such as

pipes, radiators, ranges, and refrigerator enclosures.
Replacement parts and accessories17. . When servicing, use only identical replace-

ment parts. Use of any other parts will void the warranty. Only use accessories in­tended for use with this tool. Approved accessories are available from Harbor Freight
Tools.

Do not operate tool if under the inuence of alcohol or drugs18. . Read warning

labels on prescriptions to determine if your judgment or reexes are impaired while

taking drugs. If there is any doubt, do not operate the tool.
Avoid causing res19. . When sanding metals, remove dust collecting bags and hoses

from the machine. Sparks or hot metal could start a re. Clean all wood dust before

and after sanding metal.
Avoid ammable liquids20. . To avoid possible res, never use sander near ammable

liquids, vapors, or gases.

Avoid breathing dust21. . Wear a dust mask over your mouth and nose.
Use proper size and type extension cord22. . If an extension cord is required, it must

be of the proper size and type to supply the correct current to the tool without heating
up. Otherwise, the extension cord could melt and catch re, or cause electrical dam-

SKU 43468 For technical questions, please call 1-800-444-3353. Page 3

age to the tool. This tool requires use of an extension cord of 0 to 20 amps capability
(up to 50 feet), with wire size rated at 14 AWG. Longer extension cords require larger
size wire. If you are using the tool outdoors, use an extension cord rated for outdoor

use (signied by “WA” on the jacket).

People with pacemakers should consult their physician(s) before use. Electromag-23.

netic elds in close proximity to heart pacemaker could cause pacemaker interference

or pacemaker failure.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other 24.

construction activities, contains chemicals known [to the State of California] 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 or other masonry products

• 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, such as those dust masks that are specially de-

signed to lter out microscopic particles. (California Health & Safety Code § 25249.5,

et seq.)
WARNING: Handling the cord on this product will expose you to lead, a chemical 25.

known to the State of California to cause cancer, and birth defects or other reproduc-

tive harm. Wash hands after handling. (California Health & Safety Code § 25249.5, et
seq.)

The warnings, cautions, and instructions discussed in this instruction manual 26.
cannot cover all possible conditions and situations that may occur. It must be
understood by the operator that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.

Unpacking

When unpacking, check to make sure the following parts are included.
Parts should include: Disc Sander unit with Work Table, Mitre Gauge, Key Switch, and

three 12-inch sanding discs.
If any parts are missing or broken, please call Harbor Freight Tools at the number on the

cover of this manual as soon as possible.

Installation

Set the Disc Sander on a sturdy work bench. Optionally, the Rubber Pads (50) can be 1.
removed and the Disc Sander Base (49) can be permanently bolted to the bench.

Mount the Sanding Pad (1). See page 5 for instructions.2.
Place the Mitre Gauge on the Work Table (46).3.
Insert the Plug (73) into an electrical outlet with a minimum current capability of 20 4.

amps.

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REV 09b

Operation

Leveling Work Table

Place a combination square on the Work Table (46) so that it also touches the Sand-1.
ing Pad (1). Refer to the photos that follow. When the Work Table is 90 degrees to the

Sanding Pad, the square is ush on the pad.

If the Work Table is not 90 degrees to the pad, loosen the Lock Knob Bolts (7), and tilt 2.

the table until the square is ush with the pad.

Retighten the Lock Knob Bolts.3.

Work Table (46)

Lock Knob Bolts (7)

Screws (31)

Reference Pointer (29)

4. Loosen Screws (31) holding the Reference Pointer (29) and adjust Pointer until it is

aligned over “0” degrees.

Sanding Pad (1)

Work Table (46)

Safety Switch (65)

Cord and Plug (73)

Base (49)

Mitre Gauge (39)

5. Place the Mitre Gauge in the Work Table groove.

Placing the Work Table on an Angle

Loosen the Lock Knob Bolts (7), and tilt the table to the desired angle as read on the 1.
Scale Plate (43).

Retighten the Lock Knob Bolts.2.

Replacing Sanding Pad

Remove Work Table (46) assembly.1.

SKU 43468 For technical questions, please call 1-800-444-3353. Page 5

Peel off old Sanding Pad. It may be necessary to use a mild solvent to remove any 2.
remaining glue on the Disc Plate (4).

Locate Sanding Pad (1) and peel off the Disc backing.3.
Align perimeter of Sanding Pad over Disc Plate (4) and press in place until secure.4.
Replace Work Table assembly.5.

ON/OFF Safety Switch

Switch Key (64)

Insert the Switch Key (64) into the safety Switch (65).1.
To turn machine ON, place nger under safety Switch and push 2.

up.
To turn machine OFF, place nger over safety Switch and press 3.

down.
To lock safety Switch in the OFF position, pull the Switch Key out 4.

and store in a safe location.

Switch (65)

Caution: Never walk away from the machine when it is running. Always

lock the safety Switch in the OFF position when not in use.

Caution: Always sand on the down movement side of the Sanding Disc and Sanding Roll.

Otherwise, the workpiece could y up and hit you.

Maintenance

Apply a light coat of paste wax to the Work Table to make feeding stock easier.1.
Use compressed air to blow out dust and debris from sander and motor after each 2.

use.
Store in a clean and dry location.3.
Unplug when not in use.4.
Replace Sanding Pad when its paper backing begins to tear.5.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL
AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY
REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO
MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS
OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT
ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED
TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT
OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARIS­ING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

SKU 43468 For technical questions, please call 1-800-444-3353. Page 6

Parts List

Part Description Qty

1 Sanding Pad 1
2 Cross Countersunk Screw, M6x20 1
3 Washer 1
4 Disc Plate 1
5 Cross Panhead Screw, M5x20 3
6 Spring Washer, 5 3
7 Lock Knob Bolt 2
8 Adjusting Pin 2

9 Disc Plate Housing 1
10 Wave Washer 1
11 Bearing 2
12 Key 1
13 Rotor 1
14 Cent. Switch 1
15 Bafe Clip 1
16 Stator 1
17 Grounding Mark 1
18 Cross Panhead Screw, M5x6 1
19 Toothed Washer, 5 1

20a Run Capacitor, 20uF/300V 1

21 Capacitor Box 1
22 Flat Washer, 4 2
23 Cross Panhead Screw, M4x6 2
24 Flat Washer 4
25 Cross Panhead Screw 4
26 Seal Cover 1
27 Seal Washer 1
28 Spring Washer, 4 2
29 Reference Pointer 1
30 Flat Washer, 4 2
31 Cross Panhead Screw, M4x6 2
32 Cross Panhead Screw, M6x20 2
33 Spring Washer, 6 2
34 Dust Chute Cover 1
37 Adjustment Knob Bolt 1
38 Flat Washer, 5 1
39 Mitre Gauge 1
40 Cross Panhead Screw, M5x6 1
41 Mitre Gauge Pointer 1
42 Gauge Slide 1

Part Description Qty

43 Scale Plate 2
44 Spring Washer, 6 6
45 Hex. Bolt, M6x8 6
46 Work Table 1
47 Hex Nut, M8 4
48 Flat Washer, 8 4
49 Base 1
50 Rubber Pad 4
51 Flat Washer, 8 4
52 Hex. Bolt, M8x25 4
53 Spring Washer, 12 2
54 Hex. Bolt, M12x25 2
55 Cross Panhead Screw, M4x6 2
56 Cent. Switch Plate 1
57 End Bell 1
58 Spring Washer, 5 3
59 Cross Panhead Screw, M5x25 3
60 Fan Blade 1
61 Cross Panhead Screw, M4x6 3
62 Flat Washer, 4 3
63 Fan Cover 1
64 Switch Key 1
65 Switch 1
66 Cross Panhead Screw, M4x8 1
67 Toothed Washer, 4 1
68 Switch Box 1
69 Cross Panhead Screw, M5x10 4
70 Spring Washer, 5 4
71 Wiring Box 1
72 Cord Bushing 1
73 Cord and Plug 1
74 Grounding Lug 1
75 Flat washer, 5 1
76 Warning Label 1
77 Rotation Label 1
78 Name Plate 1
79 Start Capacitor 100uF/125V 1
80 Capacitor Box 1
81 Flat Washer 4 2
82 Cross Panhead Screw, M4*6 2

NOTE: Some parts are listed and shown for illustration purposes only and are not available

individually as replacement parts.

SKU 43468 For technical questions, please call 1-800-444-3353. Page 7

REV 09b

Assembly Drawing

SKU 43468 For technical questions, please call 1-800-444-3353. Page 8

REV 09b