Western Safety 47277 User manual

ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright © 2002 by Harbor Freight Tools®. All rights reserved. No portion of his
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
REV 10/02; 05/05
Important: Read and understand the entire manual before using the
Welding Helmet.
AUTO-DARKENINGAUTO-DARKENING
AUTO-DARKENINGAUTO-DARKENING
AUTO-DARKENING
WELDING HELMETWELDING HELMET
WELDING HELMETWELDING HELMET
WELDING HELMET
with ANSI Approved Lenswith ANSI Approved Lens
with ANSI Approved Lenswith ANSI Approved Lens
with ANSI Approved Lens
Model 47277

Page 2SKU 47277 For technical questions, please call 1-800-444-3353.
Specifications
Welding Protection Types For All Arc Welding Processes; Not for
Laser Welding Processes; Not for Oxyacetylene
Welding/Cutting Processes. Clear State: 3 / 4
Shell Material High Impact Resistant Plastic
Darkness Range 9 to 13; Clear State: 3 / 4
Lens Protection UV / IR up to 16 (DIN) at all times; ANSI Approved
Viewing Area 6.52 Square Inch
Size of Filter Cartridges 4.33” x 3.54” x .35”
Lens Switching Speed 1/25,000 Second
Lens Clear Time Control Adjustment for dark-to-clear recovery time
Sensitivity Can be adjusted at high/low level-see page 6
Power Source Solar Cells (no battery required)
Weight 0.90 Lbs.
Power ON / OFF Fully Automatic
Operating Temperature 23 degrees F. to 131 degrees F.
StoringTemperature -4 degrees F. to 158 degrees F.
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 re-
duce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1. Do not use the Welding Helmet if the lens is cracked, the lens and sensors are
dirty, or the lens and front retaining frame are loose.
2. Keep work area clean. Cluttered areas invite injuries.
3. 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 lighted. Do not use electrically
powered tools in the presence of flammable gases or liquids.
4. Keep children away. Children must never be allowed in the work area. Do not let
them handle machines, tools, or extension cords.
REV 05/03; 05/05

Page 3SKU 47277 For technical questions, please call 1-800-444-3353.
5. 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.
6. 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. Do not modify this tool and do not use this tool for a purpose for which it
was not intended.
7. Dress properly. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically nonconductive clothes and nonskid footwear are
recommended when working. Wear restrictive hair covering to contain long hair.
8. Use eye and ear protection. Always wear ANSI approved impact safety goggles.
Wear an ANSI approved dust mask or respirator when working around metal, wood,
and chemical dusts and mists. When welding, wear ANSI approved impact safety
goggles AND the Auto-Darkening Welding Helmet.
9. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines.
10. Stay alert. Watch what you are doing, use common sense. Do not operate any tool
when you are tired.
11. 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. Check for alignment and binding of moving parts; any broken parts
or mounting fixtures; and any other condition that may affect proper operation. 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.
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 under-
stood by the operator that common sense and caution are factors which cannot be
built into this product, but must be supplied by the operator.
Safety Warnings and Precautions (continued)
WARNING: This product is used with welding and similar applications that produce
chemicals known to the State of California to cause cancer and birth defects (or other
reproductive harm). (California Health & Safety Code 25249.5 et seq.)

Page 4SKU 47277 For technical questions, please call 1-800-444-3353.
Helmet Safety Warnings and Precautions
1. The Welding Helmet is not suitable for laser welding processes, and not suitable for
Oxyacetylene welding/cutting processes.
2. The Welding Helmet’s Auto-Darkening filter must never be placed on hot surfaces.
3. Never open or tamper with the Auto-Darkening filter.
4. The Welding Helmet will not protect against severe impact hazards, including
fragmenting grinding disks; never use Welding Helmet when grinding.
5. The Welding Helmet will not protect against explosive devices or corrosive liquids.
6. Don’t make any modifications to either the filter or helmet, other than those specified in
this manual. Don’t use any replacement parts other than those specified in this
manual. Unauthorized modifications and replacement parts will void the warranty and
expose the user to the risk of personal injury.
7. Should the Auto-Darkening Welding Helmet not darken upon striking an arc, stop
welding immediately and have the helmet checked by an authorized service
technician.
8. Don’t immerse the filter in water.
9. Don’t use any solvents on filter’s screen or helmet components.
10. Use only at temperatures: 23 degrees F. to 131 degrees F.
11. Storing temperature: -4 degrees F to -158 degrees F.
12. Protect filter from liquid and dirt contact.
13. Clean filter’s surfaces regularly; do not use strong cleaning solutions. Always keep
sensors and solar cells clean using a clean lint-free tissue/cloth.
14. Regularly replace the cracked/scratched/pitted Front Cover Lens.
Warning: Severe personal injury could occur if the user fails to follow the
aforementioned warnings, and/or fails to follow the operation instructions.
Warning: Read and understand all instructions before using!
REV 05/04

Page 5SKU 47277 For technical questions, please call 1-800-444-3353.
REV 05/03; 03/04
The Auto-Darkening Welding Helmet is designed to protect the eyes and face from sparks,
splatter, and harmful radiation under normal welding conditions. The Auto-Darkening
Filter automatically changes from a clear state to a dark state when an arc is struck,
and it returns to the clear state when welding stops.
The Auto-Darkening Welding Helmet comes ready for use. The only thing you need to do
before your welding is to adjust the position of the headband and select the correct
shade number for your application.
BEFORE WELDING
Remove the protective film from both sides of the new cover lens.
Check the Front Cover Lens to makes sure that it is clean, and that no dirt is covering the
two sensors on the front of the Filter Cartridge. Also check the Front/Inside Cover
Lens and the Front Lens Retaining Frame, and make sure that they are secure in
place.
Inspect all operating parts before each use for signs of wear or damage. Any scratched,
cracked, or pitted parts should be replaced immediately before using again to avoid
severe personal injury.
Check for light tightness before each use.
Select the shade number you need for your setting at the turn of a shade knob (See Shade
Guide Table on page 7). Finally, be sure that the shade number of the Welding Helmet
is the correct shade number for your application.
Adjust headband so that the helmet is seated on the head as low as possible and close to
your face. Adjust helmet’s angle when in the lowered position by turning the
adjustable limitation washer.
DARK SHADE NUMBER SELECTION
The shade number can be infinitely set manually between 9 - 13. Check with the Shade
Guide Table on page 7 to determine the proper shade number for your application. To
select a shade number, simply turn the shade knob till the arrow points to the desired
shade number.
Important Note: Test the helmet auto-darkening filter lens before welding. While
wearing the helmet, briefly strike an arc, keeping your face and eyes turned
slightly away, and to one side. The lens should darken evenly when not directly
facing the arc. If it does not darken, do not use the Welding Helmet.
Unpacking
When unpacking, check to make sure all the parts are included. Refer to the Parts List and
Assembly Diagram at the end of this manual. If any parts are missing or broken, please call
Harbor Freight Tools at the number on the cover of this manual as soon as possible.

Page 6SKU 47277 For technical questions, please call 1-800-444-3353.
PRODUCT FEATURES
At the moment the welding operation is started, the filter screen automatically changes from
clear to dark in only 1/25,000 seconds.
Dark to clear delay adjustment: Operator can vary the time for the filter to return to clear
state.
At the moment welding is stopped, the filter screen automatically changes from dark to clear
state according to your preset time. Note: turning the time-setting switch to the “FAST”
position - it can vary from 0.25 seconds to 0.35 seconds; turning the time-setting
switch to the “SLOW” position - it can vary from 0.6 seconds to 0.8 seconds.
This Welding Helmet utilizes high performance solar cells as power supply, and has two
built-in 3V lithium batteries as power backup. No change of battery is needed. Under
normal welding conditions, users can expect a battery lifetime of more than 6 years.
User-selectable (DIN) variable shades from 9 to 13 are adjusted at the turn of a shade knob
(shade variable). This product is in full conformity with related DIN, ISO, EN379 safety
standards and ANSI Z87.1-1989 standard.
The ultra high performance of UV and IR Auto-Darkening filters provides to the user’s eyes
and face full protection against UV and IR radiation during the entire welding process,
even in the clear state. The UV/IR protection level is up to Shade 16 (DIN) at all times.
COMMON PROBLEMS AND REMEDIES
Irregular Darkening Dimming
Headband has been set unevenly on the two sides of the helmet (unequal distances from
the eyes to the filter’s lens). Reset headband to reduce the difference in distances to
filter, if necessary.
REV 10/02; 05/03
Dark to Clear Delay Adjustment
In FAST Position = .25 to .35 Second
In SLOW Position = .60 to .80 Second
Sensitivity Adjustment *
Low = Activates at 4.92’ from lamp.
High = Activates at 9.84’ from lamp.
*Testing Ambient: Single Light Source
60W Incandescent Lamp.
Figure 1
(see Figure 1 below)
(View from inside of helmet.)

Page 7SKU 47277 For technical questions, please call 1-800-444-3353.
Figure 2
Auto-Darkening Filter Does Not Darken Or Flickers
Front Cover Lens is soiled or damaged (change the cover lens).
Sensors are soiled (clean surface of the sensors).
Welding current is too low (turn the switch to the “SLOW” position, if necessary.
Slow Response
Operating temperature is too low (do not use at temperatures below 23 degrees F.
Poor Vision
Front/Inside Cover Lens and/or filter soiled (change it).
Insufficient ambient light.
Shade number is incorrectly set (reset shade number).
Welding Helmet Slips
Headband is not adjusted properly (must be lowered).
WARNING: YOU MUST STOP USING THE AUTO-DARKENING WELDING
HELMET IMMEDIATELY IF THE ABOVE MENTIONED PROBLEMS CAN
NOT BE CORRECTED.
LENS AND HELMET MAINTENANCE
Replacing the Front Cover Lens if it is damaged
(cracked, scratched, soiled or pitted)
Step 1: Remove the front retaining frame by pulling
up the central part of the frame - see Figure 2 at right.
Step 2: Place the new cover lens into the right
position - see Figure 2. Please remove the protection film
from both sides of the new cover lens if it comes with the film on.
Step 3: Put the front retaining frame back onto the position by
inserting its four tabs into the four openings in the helmet shell. Push the four corners of the
frame by your thumb or palm until the tabs snap into place - see Figure 2.
Step 4: Check and make sure that the frame is securely installed.
Replace the Inside Cover Lens if it is damaged (cracked, scratched, soiled or pitted).
Clean the Filter Lens with a clean lint-free tissue or cotton cloth.
Don’t immerse the lens in water or any other liquid. Never use abrasives, solvents or oil based
cleaners.
Don’t remove the auto-darkening filter from the Auto-Darkening Welding Helmet. Never try to
open the filter. REV 05/03

Page 8SKU 47277 For technical questions, please call 1-800-444-3353.
WARNING: This product is used with welding and similar applications that produce
chemicals known to the State of California to cause cancer and birth defects (or other
reproductive harm). (California Health & Safety Code 25249.5 et seq.)
REV 05/03

Page 9SKU 47277 For technical questions, please call 1-800-444-3353.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBU-
TOR 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.
NOTE: Some parts are listed and shown for illus-
tration purposes only and are not available indi-
vidually as replacement parts.
*
* Includes Sensitivity and Delay Time Switches.
REV 05/03