Ottobock 17B23 Instructions D'utilisation page 15

Inserting the compression spring
► Only for 17B23*, 17B45*, 17B92*: Insert the compression spring into
the upper joint section.
Converting 17B23=L/R16-K, 17B23=L/K20-K to long lock lever
Replace the centric lower joint section and the centric lock lever together.
INFORMATION: The lower joint section and the long lock lever are
marked with a Z (centric).
1) Loosen the screws and remove the bearing nuts.
2) Disassemble the lock lever and the orthotic joint.
3) Replace the lower joint section with the 30U88* centric lower joint sec­
tion.
4) Replace the lock lever with the 17Y34/17Y20 centric lock lever.
5) Assemble the lock lever and the orthotic joint with the screws and bear­
ing nuts.
6) Secure the screws with Loctite 241.
Converting the 17B23*, 17B33*, 17B45*, 17B91*, 17B92* to cable pull
release
Replace the eccentric lower joint section and the short lock lever together.
1) Loosen the screws and remove the bearing nuts.
2) Disassemble the lock lever and the orthotic joint.
3) Replace the centric lower joint section with the 30U88* eccentric lower
joint section.
4) Replace the centric lock lever with the 17Y104 eccentric lock lever.
5) Assemble the lock lever and the orthotic joint with the screws and bear­
ing nuts.
6) Secure the screws with Loctite 241.
Replacing the short lock lever
Inspect the 17Y104 lock lever and replace it in case of signs of wear.
1) Loosen the lock screw and remove the bearing nut from the upper joint
section.
2) Remove the lock lever.
3) Insert the replaced lock lever into the upper joint section.
4) Optional Rework the lower side of the short lock lever until the engage­
ment reserve reaches 5 mm (see fig. 4).
INFORMATION: Do not rework the locking surfaces of the lower
joint section and the lock lever.
5) Assemble the lock lever and the orthotic joint with the screws and bear­
ing nuts.
6) Secure the screws with Loctite 241.
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