Ottobock 3R30 Gebrauchsanweisung Seite 11

casting has hardened, apply 2 more layers of 623T3 Perlon Stockinette. For the second casting,
the proximal part of the socket is laminated with 617H17 Orthocryl Flexible Resin.
4.1.3 Applying the lamination anchor
The correctly fitted lamination anchor must be prepared before it is glued to the socket. To do so,
fill the coupling opening with 636K8 Plastaband (Fig. 3). Clamp the socket and knee joint into
the alignment apparatus.
Attention
Remove any soft, flexible or porous materials from underneath the supporting surface of
the lamination anchor. Mix the putty exclusively from 617H21 Orthocryl Sealing Resin
and 639A1 Talcum Powder. Glue on the lamination anchor.
Secure with 627B2 Adhesive Tape for trial fitting. Test the stop function. If necessary, form the
required contact surface with putty. If need be, glue a stop made of Pedilin onto the outer laminate.
4.1.4 Finalizing the socket
Once the trial fitting has been completed, fasten the lamination anchor to the socket with truss
head screws (22) and two-hole nuts (23). Then laminate.
Then proceed with reinforcement as follows:
Pull one layer of 623T3 Perlon Stockinette over the entire socket and tie circularly on the top.
Apply two layers of 616G12 Carbon Fiber Cloth over the arms of the 4G70 Adapter. Then pull
the remaining half of the 623T3 Perlon Stockinette back over the socket. The carbon fiber layers
are thus sandwiched between the stockinette layers. Again reinforce the socket in increments with
616G13 Fiberglass Stockinette (see Section 4.1.2). Apply two layers of 623T3 Perlon Stockinette.
Proceed with lamination as with the first casting.
Attention
Deviating from the processing instructions or the recommended materials for the la-
mination of the lamination anchor can result in a loosening or breaking of the adapter.
Attention
Upon completion of assembly, tighten the set screws (12, 12a) with the 710D1 Torque
Wrench. For trial fitting: Tighten the 506G3 Set Screws to 10 Nm. For completion: Se-
cure the 506G3 Set Screws with 636K13 Loctite and tighten to 10 Nm.
4.2 Adjustment of the bearing
The axis pins of the linkage bars, encased in bushings, are connected to the upper and lower joint
section. The type of bearing and screw connection allows to increase or decrease the friction and
to remove play resulting from ordinary wear and tear. For this, attach lock nut (14) using enclosed
709S18 Socket Wrench (21). Then tighten socket head cap screw (11) with 5-mm Allen wrench
(Fig. 4). It is of utmost importance that an adjustment to remove play take place after a breaking-
in period of 2 to 4 weeks. At every maintenance check, the adjustment must be verified and the
4Z43=H Stops replaced. To lubricate the axle bushings (8) and slotted bushings (9) use 633G6
Ottobock Special Lubricant.
4.3 Adjustment of the extension assist
For a customized control of the swing phase, the axle friction (Section 4.2) and mechanical
extension assist (15–19) must be fine-tuned to each other. To do so, adjust the tension of the
extension assist spring (17) by turning the knob of the extension assist (19) (Fig. 5). To optimize
3R30/3R21 Ottobock | 11