Harbor Freight Tools 97870 User Manual
AIR MICRO DIE GRINDER
Model
97870
SET UP AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
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© 2008 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.
Manual Revised 11h
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 ...................... 5
SERVICE ............................................5
AIR SOURCE ......................................5
SYMBOLS AND SPECIFIC
SAFETY INSTRUCTIONS ........... 6
SYMBOL DEFINITIONS ..................... 6
SPECIFIC SAFETY INSTRUCTIONS 6
VIBRATION PRECAUTIONS ........ 7
ACCESSORY LIST ...................... 14
PARTS LIST ................................. 15
ASSEMBLY DIAGRAM ................ 15
LIMITED 90 DAY WARRANTY .... 16
FUNCTIONAL DESCRIPTION ....... 8
SPECIFICATIONS ..............................8
COMPONENTS AND CONTROLS .... 8
INITIAL TOOL SET UP/
ASSEMBLY .................................. 8
UNPACKING .......................................8
AIR SUPPLY ....................................... 8
OPERATING INSTRUCTIONS .... 10
TOOL SET UP ..................................10
WORK PIECE AND WORK AREA
SET UP ..........................................10
GENERAL OPERATING
INSTRUCTIONS ............................10
USER-MAINTENANCE
INSTRUCTIONS ........................ 12
CLEANING, MAINTENANCE, AND
LUBRICATION ??? .......................12
LUBRICATION DIAGRAM .......... 12
Page 2SKU 97870 For technical questions, please call 1-800-444-3353.
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.
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
Safety Alert Symbol and Signal
Words
In this manual, on the labeling,
and all other information
provided with this product:
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.
INSTRUCTIONS
INSTRUCTIONS PERTAINING
TO A RISK OF FIRE,
ELECTRIC SHOCK, OR
INJURY TO PERSONS
WARNING – When using tools, basic pre-
cautions should always be followed,
including the following:
General
a. To reduce the risks of electric
shock, re, and injury to persons,
read all the instructions before using the tool.
Work area
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.
a. Keep the work area clean and well
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, re, and injury to persons.
b. Do not operate the tool in explo-
sive 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.
c. Keep bystanders, children, and
visitors away while operating the
Page 3SKU 97870 For technical questions, please call 1-800-444-3353.
tool. Distractions are able to result in
the loss of control of the tool.
conditions. Wear heavy-duty work
gloves during use.
Personal safety
a. Stay alert. Watch what you are do-
ing 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.
b. Dress properly. Do not wear loose
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.
c. Avoid unintentional starting. Be
sure the switch is off before connecting to the air supply. Do not
carry the tool with your nger on the
valve or connect the tool to the air
supply with the valve on.
d. Remove adjusting keys and
wrenches before turning the tool
on. A wrench or a key that is left at-
tached to a rotating part of the tool
increases the risk of personal injury.
e. Do not overreach. Keep proper
footing and balance at all times.
Proper footing and balance enables
better control of the tool in unexpected situations.
f. Use safety equipment. A
dust mask, non-skid safety
shoes and a hard hat must
be used for the applicable
g. Always wear eye protec-
tion. Wear ANSI-approved safety goggles.
h. Always wear hearing
protection when using
the tool. Prolonged expo-
sure to high intensity noise
is able to cause hearing loss.
i. Keep this product and all other tools
away from children and animals. Do
not allow spectators in or around the
work area.
j. Never submerge this tool in liquids or
use while in an excessively moist, or
volatile environment.
k. Ensure the bit, Collet Nut and work
piece are tightly secured before each
use.
l. Use only included and/or recom-
mended parts & accessories with this
tool. Never use a carbide tipped or
steel circular saw blade with this Die
Grinder. Do not use a wood carving
blade, carving disc with chain saw
cutters, or a cutting carving disc with
this Die Grinder.
m. Never exceed the maximum rated
air pressure for this tool. Also never
attempt to use a propellant other than
what has been recommended/speci-
ed.
n. Use for intended purposes only.
Never force or modify a tool to perform a task for which it was not constructed.
Page 4SKU 97870 For technical questions, please call 1-800-444-3353.
Tool use and care
a. Use clamps or another practical
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.
b. Do not force the tool. 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.
c. Do not use the tool if the valve
does not turn the tool on or off.
Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.
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.
h. Use only accessories that are
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. Wheels and
other accessories running over rated
speed can y apart and result in a
risk of injury to persons.
Service
a. Tool service must be performed
only by qualied repair personnel.
d. Disconnect the tool from the 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 throttle and/or turn
the switch to its off position before
leaving the work area.
e. Store the tool, when it is idle, out
of reach of children and other untrained persons. A tool is dangerous
in the hands of untrained users.
f. Maintain the tool with care. Keep a
cutting tool sharp and clean. A properly maintained tool, with sharp cutting edges reduces the risk of binding
and is easier to control.
g. Check for misalignment or bind-
ing of moving parts, breakage of
parts, and any other condition that
b. When servicing a tool, use only
identical replacement parts. Use
only authorized parts.
c. Use only the lubricants supplied
with the tool or specied by the
manufacturer.
Air source
a. Never connect to an air
source that is capable of
exceeding 90 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
rated air pressure or within the rated
air-pressure range.
Page 5SKU 97870 For technical questions, please call 1-800-444-3353.
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