Harbor Freight Tools 94767 Assembly And Operating Instructions Manual

Digital Welding Gauge

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www.harborfreight.com

Copyright © 2006 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 and replacement parts, please call 1-800-444-3353

94767

Due to continuing improvements, actual product may differ slightly from the product described herein.

SKU 94767

For technical questions please call 1-800-444-3353

Page 2

Specifications

Save This Manual

You will need the manual for the safety warnings and precautions, assembly instructions,
operating and maintenance procedures, parts list and diagram. Keep your invoice
with this manual. Write the invoice number on the inside of the front cover. Keep the
manual and invoice in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be fol­lowed to reduce the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

1. Keep work area clean. Cluttered areas invite injuries.

2. Observe work area conditions. Do not use machines or power tools in

damp or wet locations. Don’t expose to rain. Keep work area well lit. Do not
use electrically powered tools in the presence of flammable gases or liquids.

3. Keep children away. Children must never be allowed in the work area. Do

not let them handle machines, tools, or extension cords.

4. Store idle equipment. When not in use, tools must be stored in a dry

location to inhibit rust. Always lock up tools and keep out of reach of children.

5. Use the right tool for the job. Do not attempt to force a small tool or

attachment to do the work of a larger industrial tool. There are certain
applications for which this tool was designed. It will do the job better
and more safely at the rate for which it was intended. Do not modify this
tool and do not use this tool for a purpose for which it was not intended.

6. Do not overreach. Keep proper footing and balance at all times. Do not

reach over or across running machines.

7. Use eye and ear protection. Always wear ANSI approved impact safety

goggles. Wear a full face shield if you are producing metal filings or wood chips.

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This gauge can be used to measure undercut, excess material, fillets, preparation
angle and misalignment of weld joints. The digital readout is easy to read.

SKU 94767

For technical questions please call 1-800-444-3353

Page 3

8. Maintain tools with care. Keep tools maintained and clean for better and

safer performance. Follow instructions for maintenance and changing
accessories. The handles must be kept clean, dry, and free from oil and
grease at all times.

9. Stay alert. Watch what you are doing, use common sense. Do not operate

any tool when you are tired.

10. Check for damaged parts. Before using any tool, any part that appears

damaged should be carefully checked to determine that it will operate
properly and perform its intended function. Any part that is damaged should be
properly repaired or replaced by a qualified technician. Do not use the tool if
any switch does not turn On and Off properly.

11. Guard against electric shock. Prevent body contact with grounded surfaces

such as pipes, radiators, ranges, and refrigerator enclosures.

12. Replacement parts and accessories. When servicing, use only identical

replacement parts. Use of any other parts will void the warranty. Only use
accessories intended for use with this tool. Approved accessories are
available from Harbor Freight Tools.

13. Do not operate tool if under the influence of alcohol or drugs. Read

warning labels on prescriptions to determine if your judgment or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.

14. Maintenance. For your safety, service and maintenance should be performed

regularly by a qualified technician.

Warning: The warnings, cautions, 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.

Unpacking

When unpacking, check to make sure the following parts are included.

Digital Welding Gauge
Storage Case

NOTE: Battery is not included. Any of the following sizes will fit:

303 / 357 / SR44SW / LR44 / SP303 / D303

SKU 94767

For technical questions please call 1-800-444-3353

Page 4

Battery Installation

To install battery, slide the battery
compartment door open as shown
in the photo. Install one 1.5 volt
button battery with positive polarity
toward the battery compartment
door, as shown in the photo.
NOTE: The positive end is marked
with a + sign.

Gauge Features and Controls

Angle Templates

mm / in. scale selector

ON / OFF Switch

ZERO Switch

Battery Compartment

Reference
Points

Angle Template

Locking Knob

Operating Instructions

1. Turn the gauge on and off by pressing the ON / OFF button.

2. Reset the gauge to Zero by pressing the ZERO button at any time the gauge
is turned ON.

3. Select between inch and millimeter readout by pressing the mm / in. button at
any time the gauge is turned ON.

SKU 94767

For technical questions please call 1-800-444-3353

Page 5

Using the Digital Welding Gauge

Measuring Undercut

1. Undercuts are grooves which form at one or both sides of a weld joint. They
are usually caused by moving the welding rod too quickly, or too high current
being used during welding. Undercut is considered a welding defect.

2. It is difficult to measure undercut because of the small size of the defect.
Place the Reference Points and the tip of the 60º template on the material
surface. Press the ON button, and press the ZERO button.

3. Place the Reference Point on the material surface, and press the 60º template
into the template. The depth of the undercut will be displayed on the readout.

Measuring Fillets and Excess Material

1. Place one of the Reference Points and the tip of the 60º template on the
material surface. Press the ON button, and press the ZERO button.

2. If the weld is on a flat surface, place both of the Reference Points on the
material surface on both sides of the weld. Adjust the 60º template until the
tip is touching the top surface of the weld. The digital readout will display the
height of the weld.

3. If the weld is a fillet in an angle, place the Reference Points and the tip of the
60º template on the material surface. Press the ON button, and press the
ZERO button. Place one of the Reference Points on top of the weld. Adjust
the 60º template until the tip is touching the top surface of the work material.
The digital readout will display the height of the weld.

4. Excess material is any weld material beyond that called for by the blueprint
or appropriate welding standard.

Checking Preparation Angle and Misalignment.

1. Place any of the Templates in the groove prepared for the weld. Try various
Templates until the one most closely matching the groove angle is found. This
will tell you the approximate angle of the prepared weld groove.

2. Misalignment can be found by placing the appropriate Template in the weld
groove. If the adjoining work material pieces are misaligned, it will be apparent
when compared to the Template.

SKU 94767

For technical questions please call 1-800-444-3353

Page 6

Maintenance

1. When not in use, press the ON / OFF button to turn the device OFF, and store
your Digital Welding Gauge in its case.

2. Protect your Digital Welding Gauge from damage from impacts. Do not allow it
to become wet. Keep it clean by wiping with a clean cloth when necessary.

Troubleshooting

1. If Gauge will not turn ON, or fails to register readout, replace battery.

2. If gauge gives erratic or obviously wrong readout, turn OFF, then ON. If this
does not help, replace the battery.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE
BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY 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.

Replacement Parts are not Available for this Gauge.

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, or to lack of maintenance.
We shall in no event be liable for death, injur ies 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 par t 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.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]

LIMITED 90 DAY

WARRANTY

WARRANTY