Sperian 71039500, Instructions Manual

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MAINTENANCE INSTRUCTIONS
Except for the changing of the speech diaphragm (14) and the nut of the valve box (11), all maintenance operations can be performed without special tools.
Inhalation valve flap and connector gasket.
The inhalation valve flap (12) and the connector gasket (8) can be replaced by hand. Make sure that the valve (12) is correctly positioned.
Exhalation valve flap ("Negative pressure mask")
•
Take off the lid of the valve box and the old valve flap (13).
•
Insert the new valve flap (16) and make sure that it is clean (no dust).
•
Put lid back.
Inner mask.
•
Remove old inner mask.
•
Insert new inner mask, positioning its two holes Ø 27 into the grooves of the case.
Valve box and speech case.
•
Remove the inner mask (1).
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Hold tight valve box (5) and speech case (6).
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Unscrew nut (11) with the help of the SPERIAN key intended for this.
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Remove old valve box (5) or speech case (6).
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Position new valve box (5) or speech case (6) in the face blank and make sure that the faceblank rubber is correctly positioned.
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Refasten nut (11) and put back inner mask (1).
Mask connector.
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Cut the connector fixing ring (18) with a pair of pincers.
•
Change the connector (7) and make sure the face blank rubber is correctly positioned.
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Tighten the new connector fixing ring (18) with SPERIAN pliers or possibly with a pair of nippers:
Visor.
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Loosen the screws (3) which hold the visor clamps.
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Slip visor (2) out of the mask by gently pulling away mask rubber ensuring the groove of the mask is clean.
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Ease new visor (2) into groove and ensure it is correctly positioned all around.
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Refit clamps, push firmly into position and secure clamp screws and nuts (3).
Speech diaphragm and O-ring seal.
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Unscrew the speech case lid with the SPERIAN key.
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Remove the speech diaphragm (14).
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Change the O-ring seal (15) and lubricate with silicon grease.
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Position the speech diaphragm (14) in the box and screw lid back on.
Head harness.
•
Pull front and side straps of head harness (4) free of the reels (17) while pushing the buckle clips forward.
•
Pull the straps of the new head harness (4) through the reels (17) which you find on the buckles.
PARTS LIST
Item Description P/N
1 Inner mask, black EPDM 1710115
1 Inner mask, yellow silicon 1710117
2 PMMA Visor (marked CL2) 1710083
2 PC Visor (marked CL2) 1710086
3 Black visor frame with nuts and screws 1710096
4 Head harness with infused rectangle 1710019
4 Head harness without infused rectangle 1710021
5 Black expiration valve box. 1701372
6 Speech case 1701366
7 Connector Rd40 x 1/7" complete 1702000
8 Inhalation valve seat for mask connector. 1705207
9 Valve for inner mask 1715070
10 Valve seat for inner mask 1715069
11 Nut for speech case and valve box 1701417
12 Inhalation valve flap 1702150
13 Expiration valve flap 1701040
14 Speech diaphragm Ø 54 1705205
15 O-ring for speech diaphragm 1705211
16 Neck strap with openings 1710317
17 Roller rectangle 1710050
18 Connector fixing ring for mask connector 1702248
OPTIONS / ACCESSORIES
P/N Description
1701381 Key for valve box nut or speech case
1701384 Key for speech case lid
1022300 Spectacle rims for mask
1710297 Head harness connecting straps for F1 and F1A with 2 CL S, M3-30 screws
1772500 Rigid mask case
1779061 ALTUSIL oilcan (product for cleaning of visors)
1779065 EPI-US, 5 litre can
1779502 Pliers for mask connector clamps
1792128 Test bench for air-tightness of mask
1792132 Test bench for air-tightness of mask
1792252 Test bench software 1792132