ICAN 20-100 Instrucciones De Uso página 49

be fitted by locating their rubber connection piece in the hole at the centre of the
valve seat, and then, on the outside of the inner mask, carefully pulling the
connection piece until the membrane sits tight and flat against the valve seat.
5. REPLACING THE SPEECH MEMBRANE
ICAN FULL FACE's inner mask can be removed by pulling gently. The screw
ring can be screwed out and the speech membrane's cover removed. Then take out
the membrane and the O-ring. A new O-ring and membrane can then be fitted. The
cover and screw ring are mounted once again and the inner mask refitted. After
replacement of the speech membrane, a leakage test must be carried out using a
suitable leakage analyser.
6. REPLACING THE VALVE HOUSING (COMPLETE)
ICAN FULL FACE's inner mask can be removed by pulling it gently. The closing
band can be loosened with a screwdriver and removed. "Support for valve
housing" can be removed from the visor frame and the complete valve housing can
be pulled out of the body of the mask. A new original ICAN-valve housing can be
put in place, "support for valve housing" fitted onto the visor frame, and finally the
closing band can be refitted and tightened properly. After replacement of the
complete valve housing, a leakage test must be carried out using a suitable leakage
analyser.
TABLE 1. CONSTRUCTION PARTS (FIG. 1) :
Pos Name
1 Mask body
2 Button
3 Visor
4 Visor frame
5 Screw for visor
frame
6 Inner mask
7 Valve membrane
8 Valve
9 Supp. f. valve
housing
MAINTENANCE - TABLES
Pos Name
10 Screw ring
11 Cover 1 (speech
membrane)
12 Speech membrane
13 O-ring
14 Cover 2 (speech
membrane)
15 Valve housing
16 Outlet valve membrane
17 Inlet valve membrane
18 Inlet valve pin
20-100/ 300 JULI 02 REV. 01. (GB)
:
:
Pos Name
19 Inlet valve seat
20 Cover (valve housing)
21 Closing band
22 Screw for closing band
23 Head harness
24 Roller
25 Buckle
26 Carrying strap
27 Buckle (carrying strap)
(GB) 8
 copyright 2002