Harbor Freight Tools 98760 Manuel d'installation

METAL DETECTOR

98760

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.

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.

SKU 98760 For technical questions, please call 1-800-444-3353. Page 2

SAVE THIS MANUAL

Keep this manual for the safety warn-

ings and precautions, assembly, operat-

ing, 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

INSTRUCTIONS

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.

When using this

Metal Detector,

basic safety precautions

should always be followed to

reduce the risk of personal

injury, including the following:

READ ALL INSTRUCTIONS

Personal Safety

1. Wear ANSI-approved

safety goggles and heavy-

duty work gloves. Use

face or dust mask if operation is

located in dusty area.

Stay Alert2. - Watch what you are

doing. Use common sense. Do not

operate this Metal Detector when you

are tired.

DO NOT use this Metal Detector if3.

under the inuence of alcohol or

drugs. Read warning labels on pre-

scriptions to determine if your judge-



there is doubt, do not operate this

Metal Detector.

Avoid electrical shock.4. Metal

detector may discover underground

power lines, explosives and/or other

items which could cause personal

injury. DO NOT use this product in

areas where there might be under-

SKU 98760 For technical questions, please call 1-800-444-3353. Page 3

ground electric lines, or pipes buried

in shallow depth. NEVER search

in military zones where any type of

explosive may be buried. Avoid strik-

ing any line and/or conduit known

or suspected to be carrying electric

power. Do not search over any pipe-

line, particularly if it could contain a



uncertain conditions, use reasonable

caution before using the Metal Detec-

tor. IF THERE IS ANY QUESTION

OF SAFETY, DO NOT USE THIS

METAL DETECTOR.

Use and Care

Handle the Metal Detector care-1.

fully. Dropping can cause damage to

circuit boards and/or the case, which

can cause the Metal Detector to fail,

or work improperly.

Avoid Dangerous Environments - Do2.

not use in damp or wet locations.

Only use and store this Metal Detec-3.

tor in normal temperature environ-

ments. Extremes in temperature can

shorten the effectiveness of any elec-

tronic device and/or damage plastic

parts.

When servicing, use only identical4.

replacement parts.

Do not use this Metal Detector for5.

any purpose except that for which it is

intended.

6.

in dry place and keep out of the reach

of children.

Maintain Metal Detector with care.7.

Follow instructions. Keep the Search

Coil clean. The Search Coil is water-

proof and may be washed.

Do not8. submerge the Control Hous-

ing. Protect the Control Housing from

rain and blowing surf or heavy mist.

Wipe the aluminum Stem clean after

use in sandy areas.

Check for Damaged Parts - Before9.

further use of the Metal Detector,

check for breakage of parts, and any

other condition that may affect its op-

eration. A part that is damaged should

be properly repaired or replaced by a



elsewhere in this manual.

Maintain labels and nameplates on10.

the Metal Detector. These carry

-

readable or missing, contact Harbor

Freight Tools for a replacement.

The warnings, precautions, and in-11.

structions discussed in this instruction

manual cannot cover all possible con-

ditions and situations that may occur.



that common sense and caution are

factors which cannot be built into this

product, but must be supplied by the

operator.

SAVE THESE

INSTRUCTIONS.

SKU 98760 For technical questions, please call 1-800-444-3353. Page 4

SPECIFICATIONS

Construction

Materials

Housing, Support Arm, Meter

Housing and Search Coil: PVC

Thermoplastic.

Stem: 2-Piece Aluminum Shaft.

Earphone Port 1/8” Diameter Jack. Earphones

not supplied.

Adjustable

Length

31” Minimum, 43” Maximum

(Overall).

Power Source 6-AA Batteries 1.5V (Not

Supplied).

Search Coil

Adjustment 180°

UNPACKING

When unpacking, check to make sure



any parts are missing or broken, please

call Harbor Freight Tools at the number

shown on the cover of this manual as soon

as possible.

SET UP INSTRUCTIONS

Read the ENTIRE IMPORTANT

SAFETY INSTRUCTIONS

section at the beginning of this

manual including all text under

subheadings therein before set

up or use of this product.

TO PREVENT

ACCIDENTAL

OPERATION:

Turn the Power Switch of the

Metal Detector to its “OFF”

before making any

adjustments.

ASSEMBLY

NOTE: There is NO assembly required for

this Metal Detector.

OPERATING INSTRUCTIONS

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.

Before operating the Metal Detector,1.



and other safety gear. Safety gog-

gles and other safety gear are sold

separately.

Turn off the Volume Control.2.

Figure 1

Battery

Compartment

Cover (37)

Battery Com-

partment (36)

3. 

Battery Compartment (36) is located

on the underside of the Control

Housing (9,17). Remove the Battery

-

ing careful to follow the Plus (+), and

minus (-) polarity markings inside the

Battery Compartment (36). Replace

the Battery Compartment Cover (37).

See Figure 1, above.

SKU 98760 For technical questions, please call 1-800-444-3353. Page 5

NOTE:4. Always remove old batteries

if the Metal Detector will be unused

for a prolonged period of time. Bat-

teries can leak chemicals that can

damage and/or destroy electronic

parts.

NOTE:5. Use only fresh AA batteries.

DO NOT mix old and new batteries.

DO NOT mix standard and recharge-

able batteries. Always dispose of old

batteries in accordance with all local

and federal regulations.

Control Functions

Power Switch: Thumb Dial Marked:1.

ON/OFF, Volume and Direction Ar-

row.

Audio Buzzer: Earphone Jack.2.

SENS (Sensitivity) Dial: Twist Marked3.



4.



5.

Search Coil, Stem Arm and

Controls Adjustment

Adjust the Search Coil (33). Loosen1.



Stem Arm (26) located just above the

Search Coil (33). Adjust the Search

Coil (33) to the desired angle (parallel

with the ground). Tighten the Knobs

just enough to keep the Search Coil

(33) from rotating or wobbling.

Adjust the Stem Arm (24,26) to the2.

correct height. You want to be able

to stand comfortably upright with the

Search Coil (33) able to sweep the

ground from side to side at a level of

1/2” to 2” from the ground with your

arm relaxed at your side. Twist the

Lock Nut Cover (29) that holds the

two sections of the Stem Arm (24,26)

together clockwise to loosen. Then



desired length and twist the Lock Nut

Cover (29) counterclockwise to lock

the stem. Do not overtighten. See

Figure 2 below.

Counterclockwise to tighten

Figure 2

Test the Metal Detector by laying3.

coins (copper, nickel or silver) on the

ground. You can also lay gold, brass,

tin or steel or any metal that you wish

to detect. Sweep the Search Coil

(33) just above the items and set the



Adjust the Volume to a comfortable4.

level. NOTE: You can extend the life

of your batteries by using earphones

(not supplied). Earphones also make

it easier to distinguish subtle changes

in the sounds you are hearing for

better detection results as well as for

blocking out some of the area noise.

Clockwise to loosen Lock Nut Cover (29)

SKU 98760 For technical questions, please call 1-800-444-3353. Page 6

5.

(not supplied), test and set the vol-

ume at its lowest setting before at-

tempting to search for objects. This

will prevent the possibility of hurting

your ears while using your Metal

Detector.

Set the SENS (Sensitivity) Dial (13)6.

clockwise for higher sensitivity. Set

the needle on the View Meter (5) to

“8” when the Search Coil (33) is di-

rectly above the metal it is detecting.

Take a different reading for each type

of metal.

View Meter (5) Earphone Jack (35)



Figure 3

7.

mode for sensing anything metallic

(ferrous or non-ferrous) within range

of the Detector. All Metal is the best



mode to discriminate between types

of metal.

NOTE:8. You will ordinarily set the





looking for. (See Table 1 for sample

readings, below.)

Table 1

Setting of



Metal Detected

Near 11:00 

Near 12:00 Nickel Coin, Alu-

minum Pull Tab

Near 13:00 Zinc Coin

Near 15:00 Coper Coin



are based on a 24 hour clock (military

time). 12:00 would be straight up.



be pointed to the right center. By



Dial (15) is set when various metals

are detected, you can understand





metals. (See Step 7 of this section

for testing ideas.)

This Metal Detector will also search9.

in shallow water. The Search Coil is

waterproof. NOTE: 



Coil with fresh water afterward to

prevent corrosion.

SKU 98760 For technical questions, please call 1-800-444-3353. Page 7

Using the Metal Detector to

1.

mode, and the SENS Dial (13) to

“high” position (the larger white dots).

Hold the Search Coil (33) parallel2.

with the ground about 1” above the

surface. Sweep the Search Coil (33)

from side to side in a 3” arc.

When the Metal Detector detects a3.

buried metal object, it sounds a beep.

Make a visual note of the exact

spot on the ground where the beep

sounds.

Move the Search Coil (33) forward4.

and away from you and straight back

towards you a few times while ro-



away from All Metal, until the unit

does not beep.

You can then identify what type of5.

metal has been detected according to



The reading on the View Meter (5)6.

will read higher for larger deposits of

metal.

7.

Metal Detector, turn it off. Clean the

exterior surfaces with a soft cloth,

then store it indoors in a dry place,

out of the reach of children.

Listening Safely

Set the volume to lowest setting1.

before you begin listening. After you

begin, adjust the volume to a comfort-

able level.

2. WARNING: Do not listen at extremely

high volume levels. Extended high

volume can lead to partial or perma-

nent hearing loss.

MAINTENANCE AND

SERVICING

Procedures not specically

explained in this manual

must be performed only by a

qualied technician.

TO PREVENT

SERIOUS INJURY:

Do not use damaged

equipment. If anything

abnormal occurs, have the

problem corrected before

further use.

Cleaning and Maintenance

BEFORE EACH USE,1. inspect the

general condition of the Metal Detec-

tor. Check for loose screws, miss-

ing parts, cracked or broken parts,

damaged electrical wiring, and/or

any other condition that may affect its

safe operation.

AFTER USE,2. clean external surfaces

of the Metal Detector with soft, clean

cloth.

SKU 98760 For technical questions, please call 1-800-444-3353. Page 8

Troubleshooting

Problem Possible Causes Likely Solutions

Metal Detector will not

turn on

Old or worn batteries.1. Check battery position for correct1.

polarity.

Replace with fresh batteries of2.

similar type.

No response to any

metal

Battery voltage too low.1.

Defective meter.2.

Check and replace batteries.1.

2.

necessary, replace. Have all work



Follow all safety precautions whenever diagnosing or servicing the

appliance. Disconnect power supply before service.

PLEASE READ THE FOLLOWING CAREFULLY





















PARTS LIST

Part Description Q’ty

1 PCB 1

2 2

3 Nut M3 2

4 LED 1

5 View Meter 1

6 Washer 3mm 2

7 2

8 Control Panel 1

9 Support Arm (Right Side) 1

10 Nut M4 4

11  4

12  1

13 SENS Dial 1

14 Knobs 2

15  1

16 Speaker 1

17 Support Arm (Left Side) 1

18  2

19 Cap 1

PARTS LIST

Part Description Q’ty

20 Left Arm Rest Support 1

21  3

22 Right Arm Rest Support 1

23 Support Arm Adjustment Knob 1

24 Outer Stem 1

25 Washer 1

26  1

27  1

28 Lock Nut Exterior 1

29 Lock Nut Cover 1

30 Bushing 1

31 Coil Button (Nut) 1

32 Coil Button (Screw) 1

33 Search Coil 1

34 Support Arm Pad 1

35 Earphone Jack 1

36 Battery Compartment 1

37 Battery Compartment Cover 1

SKU 98760 For technical questions, please call 1-800-444-3353. Page 9

ASSEMBLY DIAGRAM

Record Product’s Serial Number Here:

Note: 

Note: Some parts are listed and shown for illustration purposes only, and are not avail-

able individually as replacement parts.

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