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HA025
Owner’s Manual &
Safety Instructions
21k
7″ Universal Surface Grinding Dust Shroud
WARNING: To prevent serious injury, User must read and
understand Owner’s Manual. SAVE THIS MANUAL.
When unpacking, make sure that the product is intact and undamaged.
If any parts are missing or broken, please call 1-888-866-5797
as soon as possible. Reference 193175450173.
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IMPORTANT SAFETY INFORMATION
INSTRUCTIONS PERTAINING TO A RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO PERSONS
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
1. Do not leave appliance when plugged in. Unplug
from outlet when not in use and before servicing.
2. Do not use outdoors or on wet surfaces.
3. Do not allow to be used as a toy. Close attention
is necessary when used by or near children.
4. Use only as described in the manual. Use only
manufacturer’s recommended attachments.
5. Do not use with damaged cord or plug.
If appliance is not working as it should, has been
dropped, damaged, left outdoors, or dropped
into water, return it to a service center.
6. Do not pull or carry appliance by cord, use cord as
a handle, close a door on cord, or pull cord around
sharp edges or corners. Do not run appliance
over cord. Keep cord away from heated surfaces.
7. Do not unplug appliance by pulling on cord.
To unplug, grasp the plug, not the cord.
8. Do not handle plug or appliance with wet hands.
9. Do not put any object into openings. Do not use
with any opening blocked; keep free of dust, lint,
hair, and anything that may reduce air flow.
10. Keep hair, loose clothing, fingers, and all parts
of body away from openings and moving parts.
11. Turn off all controls before unplugging.
12. Use extra care when cleaning on stairs.
13. Do not use to pick up flammable or
combustible liquids, such as gasoline, or
use in areas where they may be present.
14. Connect appliance to a properly
grounded outlet only.
15. Do not pick up anything that is burning
or smoking, such as cigarettes,
matches, or hot ashes.
16. Do not use without dust bag
and/or filters in place.
17. Use only 7″ diamond cup wheels with
the 7″ shroud. Using the incorrect size
or type of accessory may cause personal
injury or damage to the shroud or tool.
18. FOR HOUSEHOLD USE ONLY.
19. Stay alert, watch what you are doing and use
common sense when operating an appliance.
Do not use an appliance while you are tired or
under the influence of drugs, alcohol or medication.
A moment of inattention while operating
appliances may result in serious personal injury.
20. Maintain labels and nameplates
on the appliance. These carry important safety
information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
21. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
22. The warnings, precautions, and instructions
discussed in this instruction manual 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.
SAVE THESE INSTRUCTIONS
Page 2 For technical questions, please call 1-888-866-5797. Item 58919
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Specifications
OPERATION
Vacuum Attachment 1-1/2" O.D., 1-1/4" I.D.
Wheel Capacity 7"
Setup - Before Use
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Turn the Power Switch of the appliance off and
unplug the appliance from its electrical outlet
before performing any procedure in this section.
Note: For additional information regarding the
parts listed in the following pages, refer to the
Parts List near the end of this manual.
1. Carefully inspect condition of Dust Shroud
parts before use. Check for damaged parts.
Do not use and replace any damaged part.
2. Use only identical replacement parts. Use
of any other part will void warranty.
3. Use the right part for the job. Do not modify
the Dust Shroud or use its parts for a purpose
for which they were not intended.
4. Do not place Vacuum Hose in walkways
or in any trafficked location. Set up Dust
Shroud in a location where people or
vehicles will not trip or run over hose.
5. Keep hose away from sharp
objects and excessive heat.
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section at the
beginning of this manual including
all text under subheadings therein
before set up or use of this product.
Attaching Tool to Dust Shroud
1. Remove the tool’s battery pack,
guard, and any accessories.
2. Turn tool upside down and place on even surface.
3. Install appropriate size ring (15) onto tool.
4. Open Clamp Handle (10) and loosen Clamp Nut
(13) to allow enough room for tool to fit securely
5. Turn Shroud upside down and place over tool’s
spindle, making sure the tabs on Shroud align
with corresponding slots on tool. See below.
Tabs
6. Turn Shroud and tool upright and
rotate Shroud to desired position.
7. Make sure Shroud is centered on spindle. Close
Clamp Handle (10), then retighten Clamp Nut (13).
8. Attach desired accessory to tool according
to instructions in the tool’s manual.
9. Test fit the accessory to the tool. The grinding
surface of the accessory should be close
to flush with the ends of the brush.
10. If the accessory is not close to flush, a spacer
(16) can be added between accessory
and spindle to improve the distance.
11. Insert Vacuum Hose (18) into dust port.
Page 3For technical questions, please call 1-888-866-5797.Item 58919
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MAINTENANCE AND SERVICING
Procedures not specifically explained
in this manual must be performed
only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Turn the Power Switch of the appliance off and
unplug the appliance from its electrical outlet
before performing any procedure in this section.
TO PREVENT SERIOUS INJURY
FROM APPLIANCE FAILURE:
Do not use damaged equipment.
If abnormal noise or vibration occurs, have
the problem corrected before further use.
CAUTION! After installation, check the condition of
accessory parts during use. If any damage is seen, stop
immediately and replace part before continuing use.
CLEANING, MAINTENANCE,
AND LUBRICATION
1. BEFORE EACH USE, inspect the
general condition of the appliance. Check for:
• loose hardware,
• misalignment or binding of moving parts,
• cracked or broken parts,
• damaged electrical wiring, and
• any other condition that may
affect its safe operation.
2. AFTER USE, wipe external surfaces of
the appliance with clean cloth. Store in an
indoor dry area out of reach of children.
3. DAILY: With a soft brush, cloth, or vacuum,
remove debris from the Dust Collector Accessory
Kit. If necessary, a mild detergent may be used.
Page 4 For technical questions, please call 1-888-866-5797. Item 58919
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PARTS LIST AND DIAGRAM
Part Description Qty
1 Short Brush 1
2 Pin 1
3 Long Brush 1
4 Swivelling Cover 1
5 Flange 1
6 Cross Recessed Countersunk
Head Screw
7 Washer 1
8 Countersunk Head Rivet 2
9 Grinding Guard 1
2
Part Description Qty
10 Clamp Handle 1
11 Washer 1
12 Lock Circle 1
13 Clamp Nut 1
14 Rivet 4
15 Ring 1
16 Spacer (2,3,6,10mm) 1
17 Pipe Joint-8 1
18 Vacuum Hose 1
19 Pipe Joint-9 1
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Replacement parts are not available. Reference UPC 193175450173.
Page 5For technical questions, please call 1-888-866-5797.Item 58919
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LIMITED 90 DAY WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability
standards, and warrants to the original purchaser that this product is free from defects in materials
and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to
damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside
our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent,
special or consequential damages arising from the use of our product. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion
may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
Page 6 For technical questions, please call 1-888-866-5797. Item 58919
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Email our technical support at: productsupport@harborfreight.com
Visit our website at: http://www.harborfreight.com
For technical questions, please call 1-888-866-5797
Copyright© 2021 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.
Page 7For technical questions, please call 1-888-866-5797.Item 58919
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26677 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797
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