Otto Bock 21Y21 Instructions For Use Manual page 12

21Y21 ClickValve (Fig. 1)
(5) Air release button
(6) Vacuum forming dummy
(7) Lamination dummy
(8) 501S86=M5x12 Countersunk Head Screw
(9) 503S3 Screw
(10) Pin wrench
(11) O-ring
3 Handling
The dummy provided is used during vacuum forming or lamination and al-
lows for precise fitting into the socket made of different materials. Please
always make sure that the full dummy surface rests on the plaster positive.
3.1 Setup
NOTICE
Risk of damage to the valve. The valve is not intended for the fixation
of inner socket and frame socket. It has no holding function. Only attach
the valve to the test socket / to the flexible inner socket.
3.1.1 Installation preparation for sockets made of ThermoLyn
The enclosed vacuum forming dummy (6) provides for that the lower screw
ring is flush on the inner side of the socket.
• Soak 99B25 Nylon Stockinette with 85F1 Plaster Parting Agent and pull
it over the plaster positive.
• Secure the vacuum forming dummy to the plaster positive with the en-
closed 503S3 Screw (Fig. 2).
3.1.1.1 Completion of a test socket
• After vacuum forming of the test socket of ThermoLyn, grind away the
material covering the vacuum forming dummy until it is flush (Fig. 3).
• Remove the 503S3 Screw and vacuum forming dummy.
12 | Ottobock