Central Machinery 94029 User manual

1HP MINI DUST COLLECTOR
Model 94029
ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit ourWeb site at: http://www.harborfreight.com
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
Copyright©2005 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.
For technical questions or replacement parts, please call 1-800-444-3353.
®

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PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY RULES
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed in the following
pages may result in electric shock, fire, and/or serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark areas
invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in the
Item Description
Electrical Requirements 120V / 60 Hz / 750 Watts / 1HP
Single Phase
3 Prong Power Plug
6’-5” Power Cord Length
Power Switch Safety Key Feature
Easy Access Carbon Brushes (Qty. 2)
Inlet/Outlet Dimensions 4” Diameter
Collector Bag Particle Filtration Capacity 35 Micron
Collector Bag Holding Capacity 12 Gallons
CFM Capacity 914 CFM
Sound Rating 107~112 dB @ 3 Feet
Overall Dimensions 13-1/4” x 12” x 12”
Unit Weight 18-1/2 Pounds

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3. Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed.
presence of flammable liquids, gases, or dust. Power tools create sparks
which may ignite flammables.
ELECTRICAL SAFETY
4. Grounded tools must be plugged into an outlet properly installed and
grounded in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adapter
plugs. Check with a qualified electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should electrically malfunction or
break down, grounding provides a low resistance path to carry electricity away
from the user.
5. Double insulated tools are equipped with a polarized plug (one blade is
wider than the other). This plug will fit in a polarized outlet only one way. If
the plug does not fit fully in the outlet, reverse the plug. If it still does not
fit, contact a qualified electrician to install a polarized outlet. Do not
change the plug in any way. Double insulation eliminates the need for the
three wire grounded power cord and grounded power supply system.
6. Avoid body contact with grounded surfaces such as pipes, radiators,
ranges, and refrigerators. There is an increased risk of electric shock if your
body is grounded.
7. Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
8. Do not abuse the Power Cord. Never use the Power Cord to carry the tools
or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,
sharp edges, or moving parts. Replace damaged Power Cords immedi-
ately. Damaged Power Cords increase the risk of electric shock.
9. When operating a power tool outside, use an outdoor extension cord
marked “W-A” or “W”. These extension cords are rated for outdoor use, and
reduce the risk of electric shock.
PERSONAL SAFETY
10. Stay alert. Watch what you are doing, and use common sense when oper-

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ating a power tool. Do not use a power tool while tired or under the influ-
ence of drugs, alcohol, or medication. A moment of inattention while operat-
ing power tools may result in serious personal injury.
11. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
12. Avoid accidental starting. Be sure the Power Switch is off before plugging
in. Carrying power tools with your finger on the Power Switch, or plugging in
power tools with the Power Switch on, invites accidents.
13. Remove adjusting keys or wrenches before turning the power tool on. A
wrench or a key that is left attached to a rotating part of the power tool may result
in personal injury.
14. Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the power tool in unexpected
situations.
15. Use safety equipment. Always wear eye protection. Dust mask, nonskid
safety shoes, hard hat, or hearing protection must be used for appropriate condi-
tions.
TOOL USE AND CARE
16. Use clamps (not included) or other practical ways to secure and support
the workpiece to a stable platform. Holding the work by hand or against your
body is unstable and may lead to loss of control.
17. Do not force the tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed.
18. Do not use the power tool if the Power Switch does not turn it on or off.
Any tool that cannot be controlled with the Power Switch is dangerous and must
be replaced.
19. Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool accidentally.
20. Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.

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21. Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools with a sharp cutting edge are less likely to bind and are easier
to control. Do not use a damaged tool. Tag damaged tools “Do not use” until
repaired.
22. Check for misalignment or binding of moving parts, breakage of parts,
and any other condition that may affect the tool’s operation. If damaged,
have the tool serviced before using. Many accidents are caused by poorly
maintained tools.
23. Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
24. Tool service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of injury.
25. When servicing a tool, use only identical replacement parts. Follow
instructions in the
“Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
SPECIFIC SAFETY RULES
1. Always wear ANSI-approved safety impact eye goggles, hearing protec-
tion, and a dust mask or respirator when operating this product.
2. The sound rating for this product is 107-112 dB. The operator should al-
ways wear ANSI-approved hearing protection when using this product.
3. WARNING! The Collector Body (27) of this product contains a high speed
Impeller (20) that can amputate fingers, grab loose clothing and long hair, and
propel sawdust at high velocities. NEVER operate this product without the Inlet
Cover (25), Safety Screen (26), and all other parts in place and working properly.
(See Assy. Diagram.)
4. CAUTION! If using this product to help keep airborne sawdust within
acceptable limits, you must regularly monitor airborne sawdust and maintain the
Dust Collection system to avoid exceeding dust limits. Each application is
unique, and your maintenance schedule must be tailored to your specific use of
the Dust Collector.

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5. Industrial applications must follow OSHA requirements.
9. WARNING! Some dust created by power sanding, sawing, grinding, drilling,
and other construction activities, contain chemicals known (to the State of Cali-
fornia) to cause cancer, birth defects or other reproductive harm. Some ex-
amples of these chemicals are: lead from lead-based paints, crystalline silica
from bricks and cement or other masonry products, arsenic and chromium from
6. Use the right tool or attachment for the right job. 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 product was designed. It will do the job better
and more safely at the rate for which it was intended. Do not modify this product,
and do not use this product for a purpose for which it was not intended.
7. Always turn off the Dust Collector and unplug the Power Cord Plug (1) from
its electrical outlet before changing accessories or performing inspection,
maintenance, or cleaning procedures.
8. WARNING! People with pacemakers should consult their physician(s)
before using this product. Operation of electrical equipment in close proximity to
a heart pacemaker could cause interference or failure of the pacemaker.
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 designed to filter out microscopic particles.
(California Health & Safety Code 25249.5, et seq.)
10. WARNING! The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations that may occur. The
operator must understand that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.
11. Maintain labels and nameplates on the Dust Collector. These carry important
information. If unreadable or missing, contact Harbor Freight Tools for a replace-
ment.
SAVE THESE INSTRUCTIONS
GROUNDING
WARNING!
Improperly connecting the grounding wire can result in the risk of electric
shock. Check with a qualified electrician if you are in doubt as to whether the

SKU 94029 For technical questions, please call 1-800-444-3353. Page 7
outlet is properly grounded. Do not modify the power cord plug provided with
the tool. Never remove the grounding prong from the plug. Do not use the
tool if the power cord or plug is damaged. If damaged, have it repaired by
a service facility before use. If the plug will not fit the outlet, have a proper
outlet installed by a qualified electrician.
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
1. Tools marked “Double Insulated” do not require grounding. They have a special
double insulation system which satisfies OSHA requirements and complies with
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
1. Tools and equipment marked with “Grounding Required” have a three wire cord
and three prong grounding plug. The plug must be connected to a properly
grounded outlet. If the tool or equipment should electrically malfunction or break
down, grounding provides a low resistance path to carry electricity away from the
user, reducing the risk of electric shock. (See Figure A.)
2. The grounding prong in the plug is connected through the green wire inside the
cord to the grounding system in the tool. The green wire in the cord must be the
only wire connected to the tool’s grounding system and must never be attached
to an electrically “live” terminal. (See Figure A.)
3. Your tool must be plugged into an appropriate outlet, properly installed and
grounded in accordance with all codes and ordinances. The plug and outlet
should look like that in the following illustration. (See Figure A.)
FIGURE A
120 VOLT, GROUNDED,
ELECTRICAL OUTLET
3 PRONG PLUG NOTE:
THIS PRODUCT IS
EQUIPPED WITH A
3 PRONG PLUG.

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the applicable standards of Underwriters Laboratories, Inc., the Canadian
Standard Association, and the National Electrical Code. (See Figure B.)
2. Double insulated tools may be used in either of the 120 volt outlets shown in the
following illustration. (See Figure B.)
EXTENSION CORDS
1. Grounded tools require a three wire extension cord. Double Insulated tools
can use either a two or three wire extension cord.
2. As the distance from the supply outlet increases, you must use a heavier gauge
extension cord. Using extension cords with inadequately sized wire causes a
serious drop in voltage, resulting in loss of power and possible tool damage.
(See Figure C, next page.)
3. The smaller the gauge number of the wire, the greater the capacity of the cord.
For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.
(See Figure C.)
4. When using more than one extension cord to make up the total length, make
sure each cord contains at least the minimum wire size required.
(See Figure C.)
FIGURE B
5. If you are using one extension cord for more than one tool, add the nameplate
amperes and use the sum to determine the required minimum cord size.
(See Figure C.)
6. If you are using an extension cord outdoors, make sure it is marked with the
suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.
7. Make sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualified

SKU 94029 For technical questions, please call 1-800-444-3353. Page 9
electrician before using it.
8. Protect your extension cords from sharp objects, excessive heat, and damp or
wet areas.
SYMBOLOGY
V ~
A
xxxx/min.
FIGURE D
Double Insulated
Canadian Standards
Association
Underwriters
Laboratories, Inc.
Volts Alternating
Current
Amperes
No Load Revolutions
Per Minute (RPM)
FIGURE C
no
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*
(120 VOLT)
NAMEPLATE
AMPERES
(At Full Load)
EXTENSION CORD LENGTH
25
FEET
50
FEET
75
FEET
100
FEET
150
FEET
0-2.0 18 18 18 18 16
2.1-3.4 18 18 18 16 14
3.5-5.0 18 18 16 14 12
5.1-7.0 18 16 14 12 12
7.1-12.0 18 14 12 10 -
12.1-16.0 14 12 10 - -
16.1-20.0 12 10 - - -
*Based on limiting the line voltage drop
to five volts at 150% of the rated amperes.

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ASSEMBLY INSTRUCTIONS
UNPACKING
When unpacking, check to make sure all that all the parts listed in the Parts List on page
13 are included. If any parts are missing or broken, please call Harbor Freight Tools at the
phone number shown on the front cover of this manual as soon as possible.
NOTE:
For additional information regarding the parts mentioned in
the following pages, refer to the Assembly Diagram on page 14.
To Attach The Four Casters To The Machine Base:
1. To attach the four Casters (39) to the Machine Base (41), place a Lock Washer
(37) onto the threaded portion of each Caster. (See Assy. Diagram.)
2. Insert the threaded portion of each Caster (39) upward through the four mounting
holes in the Machine Base (41). Then secure each Caster to the Machine Base,
using four Lock Washers (37) and four Cap Nuts (36). (See Assy. Diagram.)
To Attach The Collector Bag To The Collector Body:
To attach the Collector Bag (23) to the Collector Body (27), slide the opening of
the Collector Bag over the opening of the Collector Body. Then secure the Col-
lector Bag to the Collector Body, using the Clamp (24). (See Assy. Diagram.)
To Attach An Inlet Hose To The Collector Body:
The Dust Collector is designed for use on one machine at a time, depending on
the sawdust output of a particular machine. The Inlet Cover (25) of the Dust
Collector can be connected to a machine using a 4” inside diameter flex hose
and a clamp (available at most local hardware retail outlets). The Dust Collector
can also be used as a portable vacuum to clean the shop area with a
4” inside
diameter
flex hose and vacuum attachment (neither included).
(See Figure E, next page.)
REV 03/06

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OPERATING INSTRUCTIONS
NOTE:
For additional information regarding the parts mentioned in
the following pages, refer to the Assembly Diagram on page 14.
1. NOTE: The Power Switch is equipped with a Safety Key (7) to prohibit unautho-
rized starting of the Dust Collector. The Safety Key must be fully inserted into the
Power Switch in order to turn the Power Switch to its “ON” position. When
finished using the Dust Collector, turn the Power Switch to its “OFF” position.
Remove the Safety Key, and store it in a safe location out of reach of children
and unauthorized users. (See Figure F, next page.)
2. Insert the Safety Key (7) into the Power Switch (8), and check to make sure the
Power Switch is in its “OFF” position. Then, plug the Power Cord Plug (1) into
the nearest 120 volt, grounded, electrical outlet. (See Figure F.)
3. If the Dust Collector is connected to a machine, turn the Power Switch (8) of the
Dust Collector to its “ON” position. Then, turn on the machine. If the Dust
Collector is connected to a floor sweep accessory, hold the floor sweep acces-
sory firmly to keep it from “whiplashing”. Then, turn the Power Switch of the Dust
Collector to its “ON” position. (See Figure F.)
4. When finished using the Dust Collector, turn the Power Switch (8) to its “OFF”
position, and remove the Safety Key (7) from the Power Switch. Unplug the
CLAMP
(NOT INCLUDED)
4” DIAMETER
FLEX HOSE
(NOT INCLUDED)
FIGURE E
TO
MACHINE
OR
VACUUM HOSE
ATTACHMENT
INLET COVER
(25)

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INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! Always make sure the Power Switch (8) is in its “OFF” posi-
tion, and unplug the Power Cord/Plug (1) from its 120 volt electrical outlet before
performing any inspection, adjustments, maintenance, or cleaning.
2. Before each use, inspect the general condition of the Dust Collector. Check for
loose screws, misalignment or binding of moving parts, cracked or broken parts,
damaged electrical wiring, and any other condition that may affect its safe opera-
tion. If abnormal noise or vibration occurs, have the problem corrected before
further use.
Do not use damaged equipment.
3. Daily: With a soft brush, cloth, or vacuum, remove all dust and debris from the
exterior of the Dust Collector. Then
4. To replace the Carbon Brushes: It may become necessary at sometime to
replace the
two Carbon Brushes (4) when the Motor performance decreases, or
Power Cord Plug (1) from its electrical outlet. Then store the Dust Collector in a
safe, clean, dry location out of reach of children and unauthorized users.
POWER SWITCH (8)
SAFETY KEY
(7)
BRUSH COVER (3)
CARBON BRUSH (4) BRUSH COVER (3)
CARBON BRUSH (4)
FIGURE F
COLLECTOR BAG (23)

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5. CAUTION! All maintenance, service, or repairs not listed in this manual
are only to be attempted by a qualified service technician.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
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.
PARTS LIST
Covers. NOTE: New Carbon Brushes tend to arc or spark when first used
until they wear and conform to the Motor’s Armature.
(See Figure F, previous page.)
Part
#
Description Qty
.
Part
#
Description Qty
.
1 Power Cord 1 23 Collector Bag 1
2 Cord Clamp 1 24 Clamp 1
3 Brush Cover 2 25 Inlet Cover 1
4 Carbon Brush 2 26 Safety Screen 1
5 Washer 1 27 Collector Body 1
6 Screw 1 28 Screw 9
7 Safety Key 1 29 Lock Washer 9
8 Power Switch 1 30 Hex Bolt 4
9 Screw 2 31 Lock Washer 4
10 Flat Washer 2 32 Machine Mounting Bracket 1
11 Switch Cover Plate 1 33 Hex Nut 4
12 Motor Mounting Bracket 1 34 Flat Washer 8
13 Shaft Key 1 35 Handle 1
14 Ground Conductor Cover 1 36 Cap Nut 4
15 Hex Screw 4 37 Lock Washer 8
16 Lock Washer 4 38 Hex Nut 4
17 Gasket 1 39 Caster 4
18 Collector Cover 1 40 End Cap 1
19 Gasket 1 41 Machine Base 1
20 Impeller 1
21 Washer 1
22 Hex Nut 1
the Motor Housing. To do so, remove the two Brush Covers (3). Then, remove
the two Carbon Brushes. If the Carbon Brushes are worn down more than 1/2,
replace both Carbon Brushes. If, however, the Carbon Brushes are just dirty
they may be cleaned by rubbing them with a pencil eraser. When installing the
Carbon Brushes, make sure the carbon portion of the Carbon Brushes contact
the Motor Armature, and that the springs face away from the Motor. Also, make
sure the springs operate freely. After cleaning or replacement, replace the Brush
stops working completely. The Carbon Brushes are located on each side of

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ASSEMBLY DIAGRAM
NOTE:
Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
12
3
4
5
6
7
89
10
11 12
13
14
15
16
17
18 19 20
21 22
23
24
25
26
27
28
28
28
28
29
2929
30
31
35
32
33
34
36
37
38
39
40
41