Otto Bock Triton 1C61 Instructions For Use Manual page 25

4.4 Foam cover
Both Footshell Connection Caps 2C20 (slim) and 2C19 (normal) serve as a detachable connec-
tion between the foam cover and the footshell. They snap into the proximal brim of the footshell.
Please observe the following recommendations:
1. For mounting to the footshell the connection caps of the sizes 21-25 have to be cut along the
cutting mark (Fig. 8).
2. Cut the foam cover to length, allowing for distal compression about 0.4 in (10 mm) for tran-
stibial and about 1.6 in (40 mm) for transfemoral covers.
3. With the connection cap attached to the footshell, pull the foam cover over the prosthesis,
reassemble the foot and mark the outer contours of the connection cap.
4. Remove the connection cap and clean the foam cover with Isopropyl Alcohol 634A58.
5. Apply 636N9 Ottobock Contact Adhesive or 636W17 Plastic Adhesive to the distal end of
the foam cover and to the connection cap.
6. Allow the adhesive to dry (approx. 10 minutes) and cut out a space in the distal foam cover
with a grinding and milling machine to allow for precise fit for the upper part of the adapter.
Sufficient space should be available for the adapter to ensure proper function and eliminate
noise during walking.
7. Assemble the foam cover and finish off the outer shape of the foam cover in usual way with
carbon foot installed. Any compression of the foam cover by cosmetic stockings or SuperSkin
needs to be taken into account.
4.5 Adjustment and final assembly
Due to the high forces in the adapter section, it is indispensable to tighten the adjustment screws
of the tube adapter with a torque of 15 Nm (135 lb-in).
Use 710D1 Torque Wrench. Once you have attained the final setting for the prosthesis, use 636K13
Loctite to secure the set screws.
4.6 Maintenance instructions
• Foot assembly should be inspected after first 30 days (4 weeks) of use.
• Inspect the entire prosthesis for wear during normal consultations.
• Footshell may require replacement if wear is excessive.
Ottobock recommends replacing the 4X260 Functional Ring after approximately 1 year of use
because the stiffness and restoring force can decrease over time. Depending on activity and en-
vironmental conditions, this may become necessary at an earlier (or later) point in time. Reduced
shock absorption is a typical indicator the patient may notice.
Note: New Functional Rings may feel stiffer for the patient on the initial days of use.
When replacing the Functional Ring at the recommended service interval, wipe all old grease
from the shaft and bearings, apply new grease, and replace the two o-rings on the shaft. They
are used to cushion undesirable but necessary movement in the bearing system.
5 Legal information
All legal conditions are subject to the respective national laws of the country of use and may vary
accordingly.
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