Adjusting The Vacuum Pump - Ottobock 4R180 Harmony P4 Instrucciones De Uso

5) Pull a piece of carbon fibre woven hose (2 times the length of the plaster model) over the
plaster model up to the socket brim. Tie off the excess carbon fibre woven hose and fold it
over the plaster model.
6) Pull a piece of nylglass stockinette over the plaster model.
7) Pull a piece of carbon fibre woven hose (2 times the length of the plaster model) over the
plaster model up to the socket brim. Tie off the excess carbon fibre woven hose and fold it
over the plaster model.
8) Pull a piece of Perlon stockinette (2 times the length of the plaster model) over the plaster
model up to the socket brim. Tie off the excess Perlon stockinette and fold it over the plaster
model.
9) Soak a PVA bag and pull it over the plaster model.
10) Complete the lamination process with Orthocryl.
11) Finish the prosthetic socket (see Page 19).
5.4.2 Finishing the prosthetic socket
Required materials: 636W46 Loctite 242
>
1) Remove the PVA bag.
2) Sand off the laminate distally on the lamination plate and remove the lamination dummy.
3) Mark the trim line and cut it using an oscillating saw.
4) Drill a hole (Ø 4 mm) through the middle of the lamination plate into the plaster model.
5) Remove the prosthetic socket from the plaster model.
6) Sand the trim line and round off the edges. Deburr the hole on the inside of the socket.
7) Use compressed air to clean the prosthetic socket, bore hole and lamination plate.
8) Clean the inside of the lamination plate.
9) Install the vacuum pump (see Page 19).
INFORMATION: Seal the hole in the prosthetic socket with a piece of adhesive tape if
the prosthetic socket requires modification after pump installation. This prevents
debris from entering the vacuum pump.
10) Optional: Install the 2R117-0 socket connector as described in the applicable instructions for
use. This allows the vacuum level to be determined.
5.5 Installing the vacuum pump
Required materials: 636W46 Loctite 242
>
1) Slide the threaded ring onto the vacuum pump (see fig. 9).
2) With the supplied vice jaws, secure the vacuum pump in a vice (see fig. 10).
3) Set the lamination plate onto the vacuum pump and align it.
4) Fitting:
Use the pin wrench to tighten the threaded ring (torque: 50 Nm) (see fig. 11).
Screw the two (2) set screws into the threaded ring (see fig. 12).
5) Definitive mounting:
Use the pin wrench to tighten the threaded ring (torque: 50 Nm) (see fig. 11).
6) Apply Loctite to the two (2) set screws and screw them into the threaded ring (see fig. 12).
Screw in the set screws until they touch the lamination plate; then tighten them by half a turn.
7) Install the distal prosthetic components as described in the respective instructions for use.

5.6 Adjusting the vacuum pump

The vacuum pump offers the following adjustment possibilities: vacuum generation and damping
by elastomer rod, rotation between vacuum pump and lamination plate, plantar flexion and dor­
siflexion, and pronation and supination via the pyramid receiver. The distal prosthetic components
have to be removed to adjust the elastomer rod. If there is no other possibility to do so, the con­
nection between the vacuum pump and lamination plate has to be loosened to adjust the rotation
of the prosthetic foot.
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