Harbor Freight Tools Scale 98059 User Manual

Bench Top Digital Scale  
Item 98059 - 33 LB. Weight Capacity  
Read this material before using this product.  
Failure to do so can result in serious injury.  
SAVE THIS MANUAL.  
Not legal for trade or postage.  
When unpacking, make sure that the product is intact and undamaged.  
If any parts are missing or broken, please call 1-800-444-3353 as soon as possible.  
©
®
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. 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.  
Manual Revised 11d  
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use. Use of a cord suitable for outdoor  
use reduces the risk of electric shock.  
of the Scale for operations different from those  
intended could result in a hazardous situation.  
f. If operating the Scale in a damp location  
is unavoidable, use a Ground Fault Circuit  
Interrupter (GFCI) protected supply. Use of  
a GFCI reduces the risk of electric shock.  
5.  
Battery tool use and care  
a. Recharge only with the AC/DC Adapter (25)  
specified by the manufacturer. An Adapter that  
is suitable for one type of Battery may create a  
risk of fire when used with another Battery Pack.  
3.  
Personal safety  
a. Stay alert, watch what you are doing and use  
common sense when operating the Scale. Do  
not use the Scale while you are tired or under  
the influence of drugs, alcohol or medication.  
A moment of inattention while operating the  
Scale may result in serious personal injury.  
b. Use this Scale only with specifically  
designated Batteries. Use of any other  
Battery may create a risk of injury and fire.  
c. When the Battery (21) is not in use, keep it  
away from other metal objects, like paper clips,  
coins, keys, nails, screws or other small metal  
objects, that can make a connection from  
one terminal to another. Shorting the Battery  
Terminals together may cause burns or a fire.  
b. Use safety equipment. Always wear  
eye protection. Safety equipment  
such as ANSI-approved safety impact  
goggles will reduce personal injuries.  
d. Under abusive conditions, liquid may be  
ejected from the Battery (21). If contact with  
liquid from the battery accidentally occurs,  
flush with water. If liquid contacts eyes,  
additionally seek medical help. Liquid ejected  
from the Battery may cause irritation or burns.  
c. Prevent unintentional starting. Ensure the  
Power Switch (11) is in the off-position before  
connecting to power source and/or battery  
pack, picking up or carrying the tool. Carrying  
battery operated equipment with your finger on  
the Power Switch or energizing equipment that  
have the Power Switch on invites accidents.  
6.  
Service  
a. Have your Scale serviced by a qualified  
repair person using only identical  
d. Do not overreach. Keep proper footing  
and balance at all times. This enables better  
control of the Scale in unexpected situations.  
replacement parts. This will ensure that  
the safety of the equipment is maintained.  
4.  
Scale use and care  
Specific Safety Warnings  
a. Do not force the Scale. Use the correct  
Scale for your application. The correct  
Scale will do the job better and safer at  
the rate for which it was designed.  
1.  
Maintain labels and nameplates on the tool.  
These carry important safety information. If  
unreadable or missing, contact Harbor  
Freight Tools for a replacement.  
b. Do not use the Scale if the Power Switch (11)  
does not turn it on and off. Any equipment  
that cannot be controlled with the Power  
2.  
This Scale contains a sealed lead Battery. Do not  
dispose of an old Battery in fire to avoid explosion  
and possible personal injury. Recycle old batteries  
according to local solid waste authority procedures.  
Switch is dangerous and must be repaired.  
c. Disconnect the AC/DC Adapter Cord  
before making any adjustments, changing  
accessories, or storing the Scale. Such  
preventive safety measures reduce the risk  
of starting the equipment accidentally.  
3.  
4.  
5.  
Do not exceed the Scale’s maximum  
weight capacity of 33 pounds.  
Avoid unintentional starting. Prepare to  
begin work before turning on the Scale.  
d. Store idle battery powered equipment  
out of the reach of children and do not  
allow persons unfamiliar with the Scale  
or these instructions to operate the  
Do not leave the Scale unattended when it’s AC/  
DC Adapter is plugged into an electrical outlet.  
Turn off the equipment, and unplug the AC/DC  
Adapter from its electrical outlet before leaving.  
equipment. Battery powered equipment are  
dangerous in the hands of untrained users.  
e. Maintain the Scale. Check for misalignment or  
binding of moving parts, breakage of parts and  
any other condition that may affect the Scale’s  
operation. If damaged, have the Scale repaired  
before use. Many accidents are caused by poorly  
maintained battery operated power equipment.  
6.  
The AC/DC Adapter gets hot during  
use. The Adapter’s heat can build up  
to unsafe levels and create a fire  
hazard if it does not receive adequate  
ventilation, due to an electrical fault,  
or if it is used in a hot environment.  
f. Use the Scale in accordance with these  
instructions, taking into account the working  
conditions and the work to be performed. Use  
Do not place the Adapter on a flammable surface.  
Especially avoid placing the Adapter on carpets  
and rugs; they are not only flammable, but they  
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also obstruct air flow under the Adapter. Place  
the Adapter on a stable, solid, nonflammable  
surface (such as a stable metal workbench or  
concrete floor) at least 1 foot away from all  
flammable objects, such as drapes or walls. Keep  
a fire extinguisher and a smoke detector in the  
area. Frequently monitor the Adapter and Battery  
during use.  
Grounding  
TO PREVENT ELECTRIC  
SHOCK AND DEATH FROM  
INCORRECT GROUNDING  
WIRE CONNECTION:  
Check with a qualified electrician if you  
are in doubt as to whether the outlet is  
properly grounded. Do not modify the  
Adapter Cord Plug provided with the tool.  
Never remove the grounding prong from  
the Plug. Do not use the Adapter if the  
Cord or Plug is damaged. If damaged,  
have it repaired by a service facility before  
use. If the Plug will not fit the outlet, have  
a proper outlet installed by a qualified  
electrician.  
7.  
8.  
This product is not a toy. Keep it  
out of reach of children.  
People with pacemakers should consult their  
physician(s) before use. Electromagnetic fields 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.  
• Any power cord must be properly  
Double Insulated Tools: Tools  
with Two Prong Plugs  
grounded. Ground Fault Circuit Interrupter  
(GFCI) should also be implemented – it  
prevents sustained electrical shock.  
9.  
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.  
SAVE THESE  
Outlets for 2-Prong Plug  
INSTRUCTIONS.  
1.  
Tools marked “Double Insulated” do not require  
grounding. They have a special double insulation  
system which satisfies OSHA requirements  
and complies with the applicable standards of  
Underwriters Laboratories, Inc., the Canadian  
Standard Association, and the National Electrical  
Code.  
(See Outlets for 2-Prong Plug.)  
2.  
Double insulated tools may be used in either of the  
120 volt outlets shown in the preceding illustration.  
(See Outlets for 2-Prong Plug.)  
Extension Cords  
1.  
Grounded tools require a three wire extension  
cord. Double Insulated tools can use  
either a two or three wire extension cord.  
2.  
As the distance from the supply outlet increases,  
you must use a heavier gauge extension cord.  
Using extension cords with inadequately sized wire  
causes a serious drop in voltage, resulting in loss  
of power and possible tool damage.  
The smaller the gauge number of the wire, the  
greater the capacity of the cord. For example,  
a 14 gauge cord can carry a higher current  
than a 16 gauge cord. (See Table A.)  
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3.  
4.  
When using more than one extension cord  
to make up the total length, make sure  
each cord contains at least the minimum  
wire size required. (See Table A.)  
If you are using one extension cord for more  
than one tool, add the nameplate amperes  
and use the sum to determine the required  
minimum cord size. (See Table A.)  
5.  
6.  
If you are using an extension cord outdoors, make  
sure it is marked with the suffix “W-A” (“W” in  
Canada) to indicate it is acceptable for outdoor use.  
Make sure the extension cord is properly wired  
and in good electrical condition. Always replace  
a damaged extension cord or have it repaired  
by a qualified electrician before using it.  
7.  
Protect the extension cords from sharp objects,  
excessive heat, and damp or wet areas.  
RECOMMENDED MINIMUM WIRE  
GAUGE FOR EXTENSION CORDS*  
(120/240 VOLT)  
EXTENSION CORD  
NAMEPLATE  
LENGTH  
AMPERES  
(at full load)  
0 – 2.0  
2.1 – 3.4  
18  
18  
18  
18  
18  
14  
12  
18  
18  
18  
16  
14  
12  
10  
18  
18  
16  
14  
12  
10  
-
18  
16  
14  
12  
10  
-
16  
14  
12  
12  
-
3.5 – 5.0  
5.1 – 7.0  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
-
-
-
* Based on limiting the line  
voltage drop to five volts at  
150% of the rated amperes.  
TABLE A  
Symbology  
Double Insulated  
Canadian Standards Association  
Underwriters Laboratories, Inc.  
Volts Alternating Current  
Amperes  
V~  
A
No Load Revolutions per Minute  
(RPM)  
n xxxx/min.  
0
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Charging the Battery  
Operating Instructions  
FIGURE A  
(BOTTOM VIEW)  
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.  
AC/DC ADAPTER CORD  
(25)  
POWER SWITCH  
(11)  
TO PREVENT SERIOUS  
INJURY FROM ACCIDENTAL  
OPERATION:  
CHARGING INPUT PORT  
Turn off and unplug the unit before  
performing any inspection, maintenance,  
or cleaning procedures.  
Scale Set Up  
1.  
2.  
3.  
Always place the Scale on a clean, dry, flat, level  
workbench capable of supporting the weight  
of the Scale and all objects to be weighed.  
The workbench area must be free of  
vibration, strong air currents, direct  
sunshine, and high temperatures.  
LEVELING FOOT  
(15)  
To level the scale before use:  
d. Turn the scale upside down.  
1.  
To charge the Battery (21) of the Scale, insert  
the AC/DC Adapter (25) Cord into the Charging  
Input Port located on the underside of the  
Scale. Make sure the Power Switch (11) is  
in its “OFF” position throughout the charging  
process. Plug the AC/DC Adapter into the  
nearest 120 volt, grounded, electrical outlet.  
e. Rotate the Leveling Feet (15) clockwise until they  
are fully recessed. Then turn counterclockwise  
three full turns. Hold each foot and rotate the  
locking nut two full clockwise turns or until  
the locking nut is not tightened on the foot.  
f. Turn the scale right side up and place on the  
work surface. Use the built-in leveling bubble  
at the front left hand side of the Scale to check  
if the scale is level. Rotate the feet individually  
until the leveling bubble is centered.  
IMPORTANT: The charge time for the Battery is 8 to 10  
hours. Do not overcharge the Battery to avoid  
damage to the Battery and/or AC/DC Adapter.  
When finished charging, unplug the AC/DC Adapter  
from its electrical outlet. Then unplug the Cord  
from the Charging Input Port of the unit.  
g. When the scale is level, secure each foot in place  
by turning its locking nut counterclockwise until  
tight. Re-check the level, and re-adjust the feet if  
necessary. The scale is now set for operation.  
8.  
9.  
Check that the Scale’s Platform (1) will  
not come in contact with any object before  
or during the weighing process.  
Route the AC/DC Adapter (25) Cord along  
a safe route to reach the workbench  
area without creating a tripping hazard or  
exposing the Cord to possible damage.  
SKU 98059  
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Change Units of Measure  
Operating the Scale  
1.  
Press the “UNIT” button to switch between  
the measurement unit settings. The Kg  
(Kilogram) and LB (Pound) indicator lights  
are located to the right of the Weight  
Components and Controls  
FIGURE B  
Window, indicate which setting is current.  
KILOGRAMS  
TARE  
Set Container to Zero before Weighing  
POUNDS  
The Tare button is used to reset the scale to  
zero when an empty container is set on the  
scale, and the container is not included in  
the weight of the objects to be weighed.  
ZERO  
AC POWER  
PLATFORM (1)  
1.  
2.  
The “TARE” Indicator Light is located at the  
top/left of the Weight Window (See Figure B).  
Once the Scale is turned on, it will illuminate  
to indicate the TARE weight is cleared.  
”UNIT”  
To weigh objects in a container, but not include  
the container weight, place an empty container on  
the Platform (1) of the Scale. Press the “TARE”  
button and wait for the Weight Window to display  
“0.000”, indicating the Scale is ready for weighing.  
Place the objects into the container, and the Weight  
Window will display the weight of the objects.  
“ZERO”  
“TARE”  
Turning off the Scale  
SCALE LEVEL  
(26)  
WEIGHT WINDOW  
1.  
To turn off the Scale, simply turn the Power  
Switch (11) to its “OFF” position.  
Refer to the above photos for the following  
instructions. The function buttons (Tare,  
Unit and Zero) are on the right side of the  
front of the Scale. The indicator lights on  
either side of the Weight Window display  
information about the Scale’s settings.  
2.  
Always make sure to store the Scale in  
a clean, dry, safe location out of reach of  
children and other unauthorized persons.  
Note: Disconnect charger. Do not store the  
scale with anything on top of it.  
Turning on the Scale  
Turn the Power Switch (11) to its “ON” position.  
The Scale will do a self-check, during which  
you can determine whether the Weight Window  
and Zero functions are working normally.  
Reset Weight to Zero  
1.  
The “ZERO” Indicator Light is located at the  
bottom/left of the Weight Window (See Figure  
B). Once the Scale is turned on, it will illuminate  
to indicate the Scale is at the ZERO position.  
2.  
If the Weight Window does not display  
“0.000” before you weigh an object, and  
the zero range is less than 60g, press  
the “ZERO” key. Begin weighing when  
the Weight Window displays “0.000”.  
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Maintenance and Servicing  
Procedures not specifically explained in this manual must  
be performed only by a qualified technician.  
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:  
Turn the Power Switch of the Scale to its “OFF” position and unplug the unit’s AC/DC  
Adapter from its electrical outlet before performing any inspection, maintenance, or  
cleaning procedures.  
TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE:  
Do not use damaged equipment. If abnormal noise or erratic values  
are shown, have the problem corrected before further use.  
Inspection, Maintenance, and Cleaning  
1.  
BEFORE EACH USE, inspect the general condition of the Scale.  
2.  
BATTERY REPLACEMENT: A Battery that fails to accept a charge is an indication the Battery  
should be replaced. To replace the Battery requires the use of a soldering tool and specific  
soldering expertise. It is recommended that only a qualified service technician perform a Battery  
replacement procedure. Note: Battery must be fully discharged prior to any soldering.  
3.  
4.  
AFTER USE, clean all external surfaces of the Scale with a soft, clean  
cloth. Do not use solvents. Do not immerse the Scale in liquid.  
WARNING! If the Cord of the AC/DC Adapter is damaged, it must  
be replaced only by a qualified service technician.  
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Troubleshooting  
DISPLAY  
MEANING  
ACTION TO BE TAKEN  
-------------------------------  
----  
(Mid horizontal line)  
A long period display. The ZERO position is  
unstable.  
Work area too windy or too damp. Move Scale to  
a calm, dry work area.  
-------------------------------  
----  
The ZERO position is too high.  
Have a qualified service technician service Scale.  
(Upper horizontal line)  
Lower horizontal line  
------------------------------- The ZERO position is too low.  
----  
Have a qualified service technician service Scale.  
LO  
Voltage is lower than 4.8 +/-- 0.1V  
(Alarm sound)  
Recharge or change Battery.  
OL  
Immediately remove object(s) being weighed. Do  
not exceed 33 LB. maximum weight capacity.  
Overload.  
(Alarm sound)  
NO  
Circuit integrator faulty.  
(Alarm sound)  
Have a qualified service technician service Scale.  
PLEASE READ THE FOLLOWING CAREFULLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN  
THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY  
REPRESENTATION OR WARRANTY OFANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKEANY  
REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT.  
IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS  
REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE  
BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE  
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION  
OF REPLACEMENT PARTS THERETO.  
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Parts List & Assembly Diagram  
Qty  
1
Part #  
14  
Description  
Bolt (M3 x 16)  
Foot  
Qty  
2
Part #  
Description  
Platform  
1
2
1
15  
4
Back Label  
1
16  
Adjuster  
1
3
Top Housing  
Bolt (M6 x 25)  
Top Support  
Sensor  
2
17  
Switch Label  
Circuit Board  
Bolt (M3 x 6)  
Face Label  
Battery  
1
4
1
18  
1
5
1
19  
2
6
1
20  
1
7
Bottom Support  
Bolt (M5 x 12)  
Bottom Housing  
Bolt (M4 x 18)  
Power Switch  
Fuse Holder  
10W Adapter  
4
21  
1
8
1
22  
Battery Cover  
Mike  
1
9
4
23  
1
10  
11  
12  
13  
24  
Bolt (m8 x 30)  
AC/DC Adapter  
2
1
25  
1
1
1
1
2
3
4
5
17  
6
7
18  
19  
24  
8
20  
22  
9
10  
11  
21  
12  
13  
14  
23  
16  
15  
Record Product’s Serial Number Here:  
Note:If product has no serial number, record month and year of purchase instead.  
Note:Some parts are listed and shown for illustration purposes only, and  
are not available individually as replacement parts.  
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90 Day Warranty  
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and  
durability standards, and warrants to the original purchaser that this product is free from defects  
in materials and workmanship for the period of 90 days from the date of purchase. This warranty  
does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents,  
repairs or alterations outside our facilities, criminal activity, improper installation, normal wear  
and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons  
or property, or for incidental, contingent, special or consequential damages arising from the use  
of our product. Some states do not allow the exclusion or limitation of incidental or consequential  
damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS  
EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE  
WARRANTIES OF MERCHANTABILITY AND FITNESS.  
To take advantage of this warranty, the product or part must be returned to us with transportation  
charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the  
merchandise. If our inspection verifies the defect, we will either repair or replace the product at our  
election or we may elect to refund the purchase price if we cannot readily and quickly provide you  
with a replacement. We will return repaired products at our expense, but if we determine there is  
no defect, or that the defect resulted from causes not within the scope of our warranty, then you  
must bear the cost of returning the product.  
This warranty gives you specific legal rights and you may also have other rights which vary from  
state to state.  
SKU 98059  
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3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
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