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► Position the adapter in the prosthesis in a way that makes it easy
to adjust the structural height (e.g. close to the socket).
► Perform the "basic configuration," "static alignment" and
"dynamic optimisation" steps for each prosthetic component
combination.
Aligning the adapter
The adapter connections can be aligned proximally or distally as
required (see fig. 2). The anterior or posterior alignment of the
adapter is dependent upon its build height in the prosthesis. During
this process, the three balls of the locking mechanism are aligned in
different directions.
Prerequisite: The adapter is connected and locked into place.
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1) Carry out proximal/distal alignment of the adapter connections.
2) INFORMATION: A point on the base indicates the position of
each sphere.
Carry out anterior/posterior alignment of the adapter according to
the build height in the prosthesis:
→ Below the knee joint: Align two of the balls in the posteri
or, align one ball (with the point) in the anterior (see fig. 3).
→ Above a prosthetic knee joint: Align two balls in the
anterior, align one ball (with the point) in the posterior (see
fig. 4).
3) Carry out the prosthetic alignment.
4) For assembly above a prosthetic knee joint: Flex the prosthet
ic knee joint and check whether the adapter is touching the joint.
Take appropriate measures if they are touching, for example:
→ Increase the distance between the adapter and prosthetic
knee joint.
→ Insert a flexion stop.
Connecting the pyramid adapter and pyramid receiver
The pyramid adapter is fixed with the set screws of the pyramid receiv
er.
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Required materials: Torque wrench (e.g. 710D20), Loctite 241
636K13
1) When a component of the modular system for children is
connected: Insert reducer 4X907=1 into the pyramid receiver of
the Quickchange adapter.
2) Do not use Loctite during the fitting.
Fitting: Screw in and tighten the set screws.
Modular system for children: 9 Nm
Modular system: 10 Nm
3) Final assembly: Secure the set screws with Loctite and tighten
them.
Modular system for children: 9 Nm
Modular system: Pull forward 10 Nm, then tighten 15 Nm
4) Replace set screws that are protruding or have been screwed in
too far (see page 8).
Adjustment
The set screws of the pyramid receiver can be used to adjust the
alignment of the prosthesis.
Replacement and disassembly
To keep the position that was set using the set screws: Only unscrew
the two adjacent set screws that are screwed in the furthest.
6 Use
Both parts of the adapter can be pulled apart after they are unlocked.
After the prosthetic components are changed, the adapter is locked
once more.
INFORMATION
Sometimes the two parts of the adapter cannot be easily pulled
apart after unlocking. This can happen, for example, if you have not
unlocked the adapter for a long time; however, it can be easily cor
rected:
► Stand in a place where you can hold on tightly.
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