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5.  mAintenAnce

5.1.    

cHAnging tHe cArtriDge

5.1.1.   

All components clip into the rear of the helmet.

5.1.2. 

  

Bend the tabs on the bottom of the cartridge holder inwards to release them. Pull the cartridge holder down to disengage it from the  

 

top lugs (fig.6).

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 (fig.5).

5.1.4.   

Push the potentiometer through into the inside of the helmet. 

Do not

 loose the plastic disc from under the knob. Use the plastic disc  

 

locating pin (fig.5) as a reference for correct placement.

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 slot the two tabs at the bottom of the lens into the slots at the bottom    

 

 

of the opening on the helmet, push the new lens in at the top until you  

 

 

 

hear the tabs click into place, and refit the cartridge as above (fig.8)

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 (fig.7). 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.

6.  troubleSHooting

Problem

cause

Solution

Irregular darkening or dimming.

The headband may have been unevenly 

set on the two sides of the helmet (unequal 

distances from the eyes to the shade 

cartridge).

Readjust the distance of the shade cartridge.

S

hade cartridge does not darken or flickers.

The sensors are soiled or obstructed.

Clean.

Front cover lens oiled or damaged.

Clean or replace.

Poor vision.

operative lenses and/or shade cartridge 

soiled.

Check, clean or replace.

I

nsufficient background lighting.

Adjust light.

Slow response.

operating temperature too low.

Do not

 use at temperatures below -10°C 

(14°F).

Welding helmet slips.

Headband adjustments incorrect.

Refer to section 4.

Locating Pin

Lock Nut

   fig.5

   fig.6

   fig.8

   fig.7

P

WH1, PWH2, PWH3, PWH4 Issue 1 17/06/19

Original Language Version

© Jack Sealey limited

Содержание PWH1

Страница 1: ... it is not designed 8 8 DO NOT use helmet unless you have been instructed in its use by a qualified person 8 8 DO NOT open or tamper with the shade cartridge 8 8 DO NOT get the helmet wet or use in damp or wet locations 8 8 DO NOT leave work place with helmet in lowered position as bright light source may darken cartridge unexpectedly 8 8 DO NOT place the helmet on a hot surface 8 8 DO NOT use hel...

Страница 2: ... up to move it to make the helmet tilt up further or to tilt down further Then retighten the external thumbwheels 4 3 Selecting the shade level See fig 1 4 4 Refer to the shade guide in Section 7 and adjust the knob on the side of the helmet to the correct setting 4 5 Grind position See fig 1 4 5 1 Turn the shade knob anticlockwise until it clicks into the grind position DANGER When grinding is fi...

Страница 3: ...e cartridge as above fig 8 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 fig 7 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 cle...

Страница 4: ...al and Electronic Equipment WEEE When the product is no longer required it must be disposed of in an environmentally protective way Contact your local solid waste authority for recycling information Note It is our policy to continually improve products and as such we reserve the right to alter data specifications and component parts without prior notice Important No Liability is accepted for incor...

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