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Troubleshooting - Matco Tools WH900V Manual De Instrucciones

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SHADE CONTROL
Select the shade DIN 9 to 13 based upon the welding process you will use by consulting the "Shade Guide Table".The
variable shade control knob is for external adjustment. The welding helmet can also be used to protect the face when
cutting, using shade DIN 5 to 8. Grind mode DIN 4 prevents filter lens from auto-darkening for grinding use.
SHADE GUIDE TABLE
Welding
Process
1.5
6
10
15
30
40
60
SMAW
8
MAG
8
TIG
8
9
MIG (heavy)
9
MIG (light)
10
PAC
9
PAW
4
5
6
7
*SMAW-covered electrodes
*MIG-(heavy)-MIG with heavy metals
NOTE
*MAG-metal arc welding
*MIG-(light)-MIG with light alloys
*TIG-Gas tungsten arc welding
SENSITIVITY CONTROL
Five settings are available from low to high (1,2,3,4,5) by pressing "SENS" button. Sensitivity should be adjusted
according to welding type and ambient light.
1. Setting "1" is suitable for welding with a heavy current, in bright light, or in a surrounding where light
is interfered.
2. Setting "5" is suitable for welding with a low current or in a darker place, especially to low current argon
arc welding.
DELAY TIME CONTROL
Five settings are available from slow to fast (0.2-1.0s) by pressing "DELAY" button. Delay time refers to the time it
takes the filter to change from dark to light state. Delay time should be adjusted according to welding current and level
of light.
1. Setting "1", delay time will be set at 0.20s, which is suitable for spot welding or short welding.
2. Setting "5", delay time will be set at 1.0s, which is suitable for heavy current welding or when light
is produced.
MODE CONTROL
Three modes are available by pressing the "MODE" button for grinding, welding, or cutting.
1. Selecting mode "GRIND", the ADF will be suitable for grinding use.
2. Selecting mode "WELD", the ADF will be suitable for welding use, with a DIN level of 9-13.
3. Selecting mode "CUT", the ADF will be suitable for cutting use, with a DIN level of 5-8.
MAINTENANCE:
FRONT COVER LENS REPLACEMENT
Replace the front cover lens if it is damaged (cracked, scratched, pitted, or dirty). Remove the old front lens cover by
removing the two plugs and sockets on the sides of the helmet then lifting the old front cover lens out. To install the new
front cover lens, place lens in the opening then secure the lens using the plugs and sockets.
INSIDE COVER LENS REPLACEMENT
Replace the inside cover lens if it is damaged (cracked, scratched, pitted, or dirty). Place your finger or thumb into the
recess and flex the inside cover lens upward until it release from one edge. Then remove any protective film or debris
before installing the new one.
BATTERY REPLACEMENT
When low voltage indicator (inside the helmet, on the left) turns red, the battery must be changed. Remove the ADF
assembly from the helmet, then detach the ADF from the press card. Slide open the battery compartment and replace old
battery with a new CR2450. Close the battery compartment, reattach the ADF to the press card, and reinstall into
the helmet.
CLEANING AND STORING
Keep the sensors, solar cell, and filter lens clean. Clean filter cartridge and helmet shell using a soapy water solution and
soft cloth. Do not use solvents or abrasive cleaning detergent. Switch the product to grind mode and put it in a clean, dry
location for storage.
Arc Current (Amperes)
70
100 125 150 175 200 225 250 300 350 400 450 500 600
9
10
11
12
13
9
10
11
12
10
11
12
13
10
11
12
13
11
12
13
10
11
12
13
8
9
10
11
12
*PAC-plasma jet cutting
*PAW-microplama arc welding

TROUBLESHOOTING

PROBLEM(S)
Difficult to see through filter
Filter does not darken when arc
is struck
14
13
14
14
Filter darkens without arc
14
Filter remains dark after welding
PARTS BREAKDOWN:
8
6
7
5
PART #
DESCRIPTION
1
Mode Button
2
Low Volume Indicator
3
Power On / Off Button
4
Display Screen
5
LCD
6
Shade Switch Button
12
11 10 9
PART #
DESCRIPTION
1
Helmet Shell
2
Front Cover Lens
3
Auto-Darkening Filter (ADF)
4
Inner Cover Lens
5
Press Card
6
Headgear
2
POSSIBLE CAUSE(S)
Cover lens dirty
Filter lens dirty
Grind mode selected
Sensors or Solar Panel blocked
Sensitivity set to LOW
Low voltage of lithium batteries
Sensitivity set to HIGH
Set delay to MAX
4
1
12
3
2
11
PART #
DESCRIPTION
7
Delay Switch Button
8
Sensitivity Switch Button
9
Battery Compartment
10
UV / IR Filter
11
Arc Sensor
12
Solar Case
1
2
3
4
11 10 9
PART #
DESCRIPTION
7
Headgear Adjusting Knobs
8
Headgear Angle & Distance Adjusting Knobs
9
Fix Plug for Protective Plate
10
Fix Socket for Protective Plate
11
Side Screen
12
Protective Plate
SUGGESTED SOLUTION(S)
Clean or replace cover lens
Clean filter lens
Adjust Shade from 5-8 / 9-13
Make sure there are no obstructions
between the sensors or solar
panels and the weld arc
Adjust sensitivity to required level
Replace with new lithium batteries
if indicator turns red
Adjust sensitivity to required level
Adjust delay to required level
9
10
5
6
7
8
3

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