Harbor Freight Tools 67378 Installation manual

9-FUNCTION
METAL DETECTOR
67378
SET UP AND OPERATING INSTRUCTIONS
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©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.
Revised Manual 10b

Page 2 For technical questions, please call 1-800-444-3353. SKU 67378
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.
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.
General Power Tool Safety
Warnings
WARNING Read all safety
warnings and instructions.
Failure to follow the warnings and
instructions may result in electric
shock, re and/or serious injury.
Save all warnings and
instructions for future reference.
The term ″power tool″ in the
warnings refers to your battery-
operated (cordless) power tool.
Electrical safety1.
Do not expose power tools to rain
or wet conditions. Water entering
a power tool will increase the risk of
electric shock.
Personal safety2.
Stay alert, watch what you area.
doing and use common sense
when operating a power tool. Do
not use a power tool while you
are tired or under the inuence
of drugs, alcohol or medication.
A moment of inattention while
operating power tools may result in
serious personal injury.
Do not overreach. Keep properb.
footing and balance at all times.

Page 3For technical questions, please call 1-800-444-3353.SKU 67378
This enables better control of the
power tool in unexpected situations.
Power tool use and care3.
Do not use the power tool if thea.
switch does not turn it on and
off. Any power tool that cannot
be controlled with the switch is
dangerous and must be repaired.
Remove the batteries fromb.
the power tool before making
any adjustments, changing
accessories, or storing power
tools. Such preventive safety
measures reduce the risk of starting
the power tool accidentally.
Store idle power tools out ofc.
the reach of children and do not
allow persons unfamiliar with the
power tool or these instructions
to operate the power tool. Power
tools are dangerous in the hands of
untrained users.
Maintain power tools. Checkd.
for misalignment or binding of
parts, breakage of parts and any
other condition that may affect
the power tool’s operation. If
damaged, have the power tool
repaired before use. Many
accidents are caused by poorly
maintained power tools.
Service4.
Have your power tool serviced bya.
a qualied repair person using
only identical replacement parts.
This will ensure that the safety of the
power tool is maintained.
Metal Detector Safety Warnings
Maintain labels and nameplates on1.
the tool. These carry important safety
information. If unreadable or missing,
contact Harbor Freight Tools for a
replacement.
Handle Tool carefully at all times.2.
Dropping Tool can cause damage to
circuit boards and housing, which can
cause the tool malfunction or failure.
Position batteries in proper polarity3.
and do not install batteries of different
types, charge levels, or capacities
together.
Wear ANSI-approved safety goggles4.
and heavy-duty work gloves when
assembling and digging holes.
Consult local regulations before5.
using detector, digging, or taking
any ndings. Obtain property
owner’s permission before detecting
on their property.
Only use and store in normal6.
temperature environments.
Extremes in temperature can shorten
effectiveness of electronic devices
and melt or damage plastic parts.
Avoid electrical shock.7. Any metal
detector may discover underground
power lines, explosives or other
items which when struck could
cause personal injury. Do not use
this product in areas where there
might be underground electric lines
or pipes buried at shallow depths.
Never search in military zones where
bombs or other explosives may be
buried. Avoid striking any line known
or suspected to be carrying electric
power. Do not search any pipeline,
particularly if it could contain a
ammable gas or liquid. In areas of
uncertain conditions, use reasonable
caution before using the Tool. If there

Page 4 For technical questions, please call 1-800-444-3353. SKU 67378
is any question about a condition
being safe of unsafe, do not operate
the Tool.
Keep the Metal Detector away from8.
any lights, TVs, computers, and
moble telephones. These can all
cause electro-magnetic interference.
Only the Search Coil (23) and9.
plastic section of the Lower
Leg (18) are water proof. Do not
immerse the unit any further into
water beyond the plastic section of
the Lower Leg.
Keep the Tool clean.10. Wipe the
housing after each use. The search
coil is washable and can be fully
submerged. Never submerge the
control housing. Protect the control
housing from rain, blowing surf and
heavy mist. Disassemble the Leg
and wipe it clean after use in sandy
areas.
Use the right tool for the job11. .
There are certain applications for
which this tool was designed. Do not
modify this tool and do not use this
tool for a purpose for which it was not
intended.
This product is not a toy.12. Keep it
out of reach of children.
People with pacemakers should13.
consult their physician(s) before
use. Electromagnetic elds in close
proximity to heart pacemaker could
cause pacemaker interference or
pacemaker failure. In addition,
people with pacemakers should:
• Avoid operating alone.
• Properly maintain and inspect to
avoid electrical shock.
WARNING:14. This product contains
or, when used, produces a chemical
known to the State of California to
cause cancer and birth defects or
other reproductive harm. (California
Health & Safety Code § 25249.5, et
seq.)
The warnings, precautions,15.
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 5For technical questions, please call 1-800-444-3353.SKU 67378
SPECIFICATIONS
Electrical Input 6 AA Batteries (not included)
Earphone Jack 3.5 mm mini-jack Socket
Functions
Sensitivity Adjuster;
Metal-Type Discriminator;
All-Metal Indicator; Tone
Adjuster; Volume Control;
Target Locator; Low Battery
Indicator; Auto Ground
Balance; Mode Selector
UNPACKING
When unpacking, make sure the item
is intact and undamaged. If any parts
are missing or broken, call Harbor Freight
Tools at 1-800-444-3353.
INSTRUCTIONS FOR
PUTTING INTO USE
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.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch of the
tool off and remove the
batteries before assembling
or making any adjustments to
the tool.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Components & Controls
Lower Leg (18)
Upper Leg (15)
Control Box
Battery
Cover
(26)
Handle (8/10)
Arm Support (13)
Earphone Jack
Search Coil (23)
Knob Bolt (22)
Cable (25)
Figure 1
Lock Nut (20)
View Meter (36)
Coil Pivot (21)