Harbor Freight Tools 37025 Owner's Manual
ABRASIVE HOPPER KIT
37025
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© 1997, 2009 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.
CONTENTS
TROUBLESHOOTING ......................13
SAFETY ALERT SYMBOL AND
SIGNAL WORDS .............................3
IMPORTANT SAFETY
INSTRUCTIONS .......................... 3
GENERAL ...........................................3
WORK AREA ......................................3
PERSONAL SAFETY ......................... 4
TOOL USE AND CARE ......................4
SERVICE ............................................ 5
AIR SOURCE ......................................5
SYMBOLS AND SPECIFIC
SAFETY INSTRUCTIONS ........... 5
SYMBOL DEFINITIONS ..................... 5
SPECIFIC SAFETY INSTRUCTIONS 6
FUNCTIONAL DESCRIPTION ....... 8
PARTS LIST & ASSEMBLY
DIAGRAM .................................. 14
DISCHARGE GUN PARTS LIST
& PARTS DIAGRAM ................. 15
LIMITED 90 DAY WARRANTY .... 16
SPECIFICATIONS ..............................8
COMPONENTS AND CONTROLS ....8
INITIAL TOOL SET UP/
ASSEMBLY .................................. 8
UNPACKING ....................................... 8
AIR SUPPLY .......................................8
OPERATING INSTRUCTIONS .... 10
TOOL SET UP ..................................10
ASSEMBLY.......................................10
WORK PIECE AND WORK AREA
SET UP ..........................................10
GENERAL OPERATING
INSTRUCTIONS ........................ 11
USER-MAINTENANCE
INSTRUCTIONS ........................ 12
CLEANING, MAINTENANCE, AND
LUBRICATION ............................... 12
Page 2 For technical questions, please call 1-800-444-3353. SKU 37025
SAVE THIS MANUAL
Keep this manual for the safety
warnings and precautions, assembly,
operating, inspection, maintenance and
cleaning procedures. Write the product’s
serial number in the back of the manual
near the assembly diagram (or month
and year of purchase if product has no
number). Keep this manual and the
receipt in a safe and dry place for future
reference.
Safety Alert Symbol and Signal
Words
In this manual, on the labeling,
and all other information
provided with this product:
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
IMPORTANT SAFETY
INSTRUCTIONS
INSTRUCTIONS PERTAINING
TO A RISK OF FIRE,
ELECTRIC SHOCK, OR
INJURY TO PERSONS
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
WARNING – When using tools, basic
precautions should always be
followed, including the following:
General
To reduce the risks of electric shock,
re, and injury to persons, read all the
instructions before using the tool.
Work area
Keep the work area clean and well a.
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, re, and injury to persons.
Do not operate the tool in b.
explosive atmospheres, such as in
the presence of ammable liquids,
gases, or dust. The tool is able to
create sparks resulting in the ignition
of the dust or fumes.
Keep bystanders, children, and c.
visitors away while operating the
Page 3For technical questions, please call 1-800-444-3353.SKU 37025
tool. Distractions are able to result in
the loss of control of the tool.
Personal safety
Stay alert. Watch what you are a.
doing and use common sense
when operating the tool. Do not
use the tool while tired or under
the inuence of drugs, alcohol, or
medication. A moment of inattention
while operating the tool increases the
risk of injury to persons.
Dress properly. Do not wear loose b.
clothing or jewelry. Contain long
hair. Keep hair, clothing, and
gloves away from moving parts.
Loose clothes, jewelry, or long hair
increases the risk of injury to persons
as a result of being caught in moving
parts.
Avoid unintentional starting. c.
Be sure the switch is off before
connecting to the air supply. Do not
carry the tool with your nger on the
switch or connect the tool to the air
supply with the switch on.
Do not overreach. Keep proper d.
footing and balance at all times.
Proper footing and balance
enables better control of the tool in
unexpected situations.
e. Use safety equipment. A
dust mask, non-skid safety
shoes and a hard hat must
be used for the applicable
conditions. Wear heavy-duty work
gloves during use.
f. Always wear eye
protection. Wear ANSI-
approved safety goggles.
g. Always wear hearing
protection when using
the tool. Prolonged
exposure to high intensity
noise is able to cause hearing loss.
Tool use and care
Use clamps or another practical a.
way to secure and support the
workpiece to a stable platform.
Holding the work by hand or against
the body is unstable and is able to
lead to loss of control.
Do not force the tool.b. Use the
correct tool for the application. The
correct tool will do the job better and
safer at the rate for which the tool is
designed.
Do not use the tool if the switch c.
does not turn the tool on or off.
Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.
Disconnect the tool from the d.
air source before making
any adjustments, changing
accessories, or storing the tool.
Such preventive safety measures
reduce the risk of starting the tool
unintentionally. Turn off and detach
the air supply, safely discharge any
residual air pressure, and release the
trigger before leaving the work area.
Store the tool when it is idle out e.
of reach of children and other
untrained persons. A tool is
dangerous in the hands of untrained
users.
Maintain the tool with care. f.
Keep the tool clean and free of
obstructions. A properly maintained
Page 4 For technical questions, please call 1-800-444-3353. SKU 37025
tool reduces the risk of accidents and
is easier to control.
rated air pressure or within the rated
air-pressure range.
Check for misalignment or binding g.
of moving parts, breakage of
parts, and any other condition
that affects the tool’s operation.
If damaged, have the tool serviced
before using. Many accidents are
caused by poorly maintained tools.
There is a risk of bursting if the tool is
damaged.
Use only accessories that are h.
identied by the manufacturer for
the specic tool model. Use of an
accessory not intended for use with
the specic tool model, increases the
risk of injury to persons.
Service
Tool service must be performed a.
only by qualied repair personnel.
Service or maintenance performed by
unqualied personnel could result in
a risk of injury.
Never use oxygen, carbon dioxide, b.
combustible gases or any bottled
gas as an air source for the tool.
Such gases are capable of explosion
and serious injury to persons.
SAVE THESE
INSTRUCTIONS.
SYMBOLS AND
SPECIFIC SAFETY
INSTRUCTIONS
Symbol Denitions
Symbol Property or statement
n
o
.../min
PSI
No-load speed
Revolutions or reciprocation per
minute
Pounds per square inch of pressure
When servicing a tool, use only b.
identical replacement parts. Use
only authorized parts.
Air source
a. Never connect to an air
source that is capable of
exceeding 200 psi. Over
pressurizing the tool may
cause bursting, abnormal operation,
breakage of the tool or serious injury
to persons. Use only clean, dry,
regulated compressed air at the rated
pressure or within the rated pressure
range as marked on the tool. Always
verify prior to using the tool that the
air source has been adjusted to the
ft-lb
BPM
CFM
SCFM
NPT
NPS
Foot-pounds of torque
Blows per minute
Cubic Feet per Minute ow
Cubic Feet per Minute ow at
standard conditions
National pipe thread, tapered
National pipe thread, straight
WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
eye protection.
WARNING marking concerning Risk
of Hearing Loss. Wear hearing
protection.
Chart continued in next column.
Page 5For technical questions, please call 1-800-444-3353.SKU 37025
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