Harbor Freight Tools Safety Guard for Angle Grinders Product manual
ANGLE GRINDER
SAFETY GUARD
Model
45921
INSTALLATION INSTRUCTIONS
Note: Cutting Blade and Angle Grinder sold separately.
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© 2001 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.
Manual Revised 09l
SAVE THIS MANUAL
Keep this manual for the safety warnings
and precautions, installation, 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.
IMPORTANT SAFETY
INFORMATION
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.
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.
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.
WARNING Read all safety warnings
and instructions. Failure to follow the
warnings and instructions may result
in serious injury.
Save all warnings and instructions
for future reference.
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.
Installation Precautions
Unplug the angle grinder before installing 1.
this guard.
Use only with 4” or 4.5” angle grinders 2.
from Harbor Freight Tools. They guard
may not be able to attach properly to
other angle grinders, and may come
loose during operation.
Install only according to these 3.
instructions. Improper installation can
create hazards.
Wear ANSI-approved safety goggles 4.
and heavy-duty work gloves during
installation.
Keep installation area clean and well lit.5.
Keep bystanders out of the area during 6.
installation.
Page 2 For technical questions, please call 1-800-444-3353. SKU 45921
Do not install when tired or when under 7.
the inuence of drugs or medication.
Operation Precautions
The guard must be securely attached 1.
to the power tool and positioned for
maximum safety, so the least amount
of wheel is exposed towards the
operator. The guard helps to protect
operator from broken wheel fragments
and accidental contact with wheel.
Do not “jam” the cut-off wheel 2.
or apply excessive pressure. Do
not attempt to make an excessive
depth of cut. Overstressing the wheel
increases the loading and susceptibility
to twisting or binding of the wheel in the
cut and the possibility of kickback or
wheel breakage.
Do not position your body in line 3.
with and behind the rotating wheel.
When the wheel, at the point of
operation, is moving away from your
body, the possible kickback may propel
the spinning wheel and the power tool
directly at you.
When wheel is binding or when 4.
interrupting a cut for any reason,
switch off the power tool and hold
the power tool motionless until the
wheel comes to a complete stop.
Never attempt to remove the cut-off
wheel from the cut while the wheel
is in motion otherwise kickback may
occur. Investigate and take corrective
action to eliminate the cause of wheel
binding.
Do not restart the cutting operation 5.
in the workpiece. Let the wheel reach
full speed and carefully reenter the
cut. The wheel may bind, walk up or
kickback if the power tool is restarted in
the workpiece.
Support panels or any oversized 6.
workpiece to minimize the risk of
wheel pinching and kickback. Large
workpieces tend to sag under their own
weight. Supports must be placed under
the workpiece near the line of cut and
near the edge of the workpiece on both
sides of the wheel.
Use extra caution when making a 7.
“pocket cut” into existing walls or
other blind areas. The protruding
wheel may cut gas or water pipes,
electrical wiring or objects that can cause
kickback.
Follow instructions and precautions in 8.
angle grinder manual at all times.
Use a cutting wheel/blade appropriate 9.
for the size of both the grinder and this
guard. Using a wheel/blade larger than
the grinder is designed for causes safety
problems, even if the guard can handle
the wheel/blade. (For example: The
body of a 4” grinder may be too short to
keep your hands clear of a 4.5” wheel.)
Adjust depth and lock depth knobs 10.
before use.
Hold onto grinder securely when nishing 11.
a cut because it will have a tendency to
snag the edge of the material.
Wear ANSI-approved safety glasses, 12.
NIOSH-approved dust mask/respirator
and hearing protection under full face
shield along with heavy-duty work gloves
and steel-toed work boots during use.
Keep bystanders and animals out of the 13.
work area.
Do not use when tired or when under the 14.
inuence of drugs or medication.
Keep work area clean and well lit.15.
Page 3For technical questions, please call 1-800-444-3353.SKU 45921
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