21
• Checkand,ifnecessary,cleanthesealgrooveinthevalve
seat.
• Press the new membrane securely on the pin. Carefully
check that the membrane is fully in contact with the valve
seat.
• Press the valve cover firmly back into position. A ‘snap’
indicates that it is locked in position.
4.4.2 Replacement of visor
No tools are required to replace the visor. Do the following:
• Unhookthefacesealfromtheharness(fig.8).
• Removethelowervisorframe(fig.17).
• Removethevisor.
• Fitthevisorintothelowervisorframe.Applyingalittlewater
to the seal will make fitting easier (fig.6).
• Fit the lower visor frame to the helmet by sliding it into
position. A ‘click’ indicates that is locked in position
(fig. 7a-7d).
• Checkthatthevisorhasachievedafullsealaroundtheentire
visor frame.
• Attachthehooksintheharness(fig.8).
4.4.3 Replacement of face seal
The face seal plastic frame has a groove in which a flange on
the lower visor frame fits. The frame locks into position using
two pins – one at either end -, which fit into a hole in the visor.
The face seal covering has hooks at either end that attach to
the head harness. Do the following:
• Unhookthefacesealfromtheheadharness(fig.8).
• Removethelowervisorframe(fig.17).
• Unfasten the faceseal by pulling its frameuntil the pins
release from the holes in the visor (fig. 5).
• Removethefaceseal.
• Fitthefacesealontheinnerflangeinthelowervisorframe
(fig. 3) Start at one side, push the pin upwards and control
that the lip is fastened in the lower visor frame. (fig. 4).
• Pushalongthefacesealframesoitissecurelyfastenedon
the lower visor frame (fig. 5). Control that the pin and lip is
fastened on both sides (fig. 4).
• Fit the lower visor frame to the helmet by sliding it into
position. A ‘click’ indicates that it is locked in position
(fig. 7a-7d).
• Attachthehooksintheheadharness(fig.8).
4.4.4 Replacement of sweatband
The sweatband is attached to the forehead strap by a Velcro
tape. Do the following:
• Unhookthefacesealfromtheheadharness(fig.8).
• Removethesweatband.
• FittheVelcrotapewiththeroughsidetowardstheforehead
strap and the groove facing upwards.
• Attachthefacesealhooksintheheadharness(fig.8).
4.4.5 Replacement of gasket
The gasket is located inside the helmet (fig 1a/2a). Do the
following:
• Unscrewthehosefromthehelmet.
• Removethegasketfromtheflangeandfitthenewgasket.
5. Parts list
Designation Order no.
Helmet, incl. air duct R06-0801
Upperframeset R06-0802
Lowerframeset R06-0803
Head harness R06-0804
Faceseal R06-0805
Leafspring R06-0806
Set of valves R06-0807
Visor, PC R06-0808
Sweatband R06-0809
Breathing hose for SR 580 R06-0810
O-ring fo r hose, fig. 1c/2c R06-0202
Gasket SR 200/SR 580, fig 1a/2a R01-1205
Peel of set SR 582 * T06-0801
Cleaning wipes. 50/box H09-0401
* Must not be used in potentially explosive atmosphere
6. Approvals
SR 580 with SR 500/SR 500 EX or SR 700: EN 12941:1998,
class TH3.
SR 580 with SR 507 and compressed air hose SR 358 or SR
359: EN 14594:2005, class 3A, 3B.
SR 580 with SR 507 and compressed air hose SR 360: EN
14594:2005, class 3A.
Helmet: EN 397:1995.
SR 580 in combination with fan SR 500 EX is approved in
accordance with ATEX Directive 94/9/EC and IECEx Scheme.
ATEX-codes:
II 2 G Ex ib IIA T3 Gb
II 2 D Ex ib IIIC T195°C Db
Key to ATEX markings:
Explosion protection mark.
II Equipment group (explosive atmospheres other
than mines with fire damp).
2 G Equipmentcategory(2=Highlevelofprotectionfor
Zone1,G=Gas).
2 D Equipmentcategory(2=Highlevelofprotectionfor
Zone21,D=Dust).
Ex Explosion protected.
ib Type of protection (Intrinsic safety).
IIA Gas group (Propane).
IIIC Dust material group (zone with conductive dust).
T3 Temperature class, gas (maximum surface
temperature+200°C).
T195°C Temperature class, dust (maximum surface
temperature+195°C).
Gb EquipmentProtectionLevel,gas(highprotection).
Db EquipmentProtectionLevel,dust(highprotection).
IECEx codes:
Ex ib IIA T3 Gb
Ex ib IIIC T195°C Db
Key to IECEx markings:
Ex Explosion protected.
ib Type of protection (Intrinsic safety).
IIA Gas group (Propane).
IIIC Dust material group (zone with conductive dust).
T3 Temperature class, gas (maximum surface
temperature+200°C).
T195°C Temperature class, dust (maximum surface
temperature+195°C).
Gb EquipmentProtectionLevel,gas(highprotection).
Db EquipmentProtectionLevel,dust(highprotection).
Type approval in accordance with PPE Directive 89/686/EEC
has been issued by Notified Body No. 0194.
Foraddress,seebackcover.
Type approvals in accordance with ATEX Directive 94/9/EC
and IECEx Scheme have been issued by Notified Body No.
0470.NEMKOAS,Gaustadalléen30,N-0314Oslo,Norway.