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5. MAINTENANCE
5.1. Changing the cartridge (Refer to fig.4)
5.1.1. All components clip into the rear of the helmet.
5.1.2. Pull the cartridge holder down pull the cartridge up and then down to disengage it from the top lugs.
5.1.3. Pull the black knob off the potentiometer shaft on the side off the helmet and undo the nut at the base of the shaft and remove it.
5.1.4. Push the potentiometer through into the inside of the helmet.
5.1.5. Carefully unclip the cartridge from its holder and replace.
5.1.6. Reassemble in the reverse order, ensuring that the pointer on the grinding knob is correctly orientated.
5.2. Replacing the outer protective lens cover
5.2.1. Follow steps 5.1.2. to 5.1.5.
5.2.2. Gently push the outer lens into the helmet, renew the lens, and refit the cartridge as above.
5.3. Replacing the inner protective cover lens
5.3.1. Use the recess on the top edge of the lens to pull it out and renew. Refit the lens under the clips at each side of the cassette.
5.4. Cleaning
5.4.1. Clean by wiping with a soft cloth. Clean cartridge surfaces regularly. DO NOT use solvent based cleaners. Clean sensors and solar cells
with methylated spirits using a clean cloth and wipe dry with a lint free cloth.
5.5. Replacing the battery (Refer to fig.4) Part No. CR2450
5.5.1. When the low battery indicator light illuminates turn the battery cover anticlockwise to open it. Insert a new battery making sure that it fits
the right way up.
6. TROUBLESHOOTING
Problem
Problem
Cause
Cause
Irregular darkening or
Irregular darkening or
The headband may have been unevenly set on the two
The headband may have been unevenly set on the two
dimming.
dimming.
sides of the helmet (unequal distances from the eyes to
sides of the helmet (unequal distances from the eyes to
the shade cartridge).
the shade cartridge).
Shade cartridge does
Shade cartridge does
The sensors are soiled or obstructed.
The sensors are soiled or obstructed.
not darken or flickers.
not darken or flickers.
Front cover lens oiled or damaged.
Front cover lens oiled or damaged.
Welding current too low.
Welding current too low.
Poor vision.
Poor vision.
Operative lenses and/or shade cartridge soiled.
Operative lenses and/or shade cartridge soiled.
Insufficient background lighting.
Insufficient background lighting.
Slow response.
Slow response.
Operating temperature too low.
Operating temperature too low.
Welding helmet slips.
Welding helmet slips.
Headband adjustments incorrect.
Headband adjustments incorrect.
© Jack Sealey Limited
Solution
Solution
Readjust the distance of the
Readjust the distance of the
shade cartridge.
shade cartridge.
Clean.
Clean.
Clean or replace.
Clean or replace.
Adjust weld amps.
Adjust weld amps.
Check, clean or replace.
Check, clean or replace.
Adjust light.
Adjust light.
Do not use at temperatures
Do not use at temperatures
below -10 o C (14 o F).
below -10 o C (14 o F).
Refer to section 4.
Refer to section 4.
Original Language Version
fig.4
PWH601
Issue: 1 - 15/11/16
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