Ottobock 17LA3N Serie Instructions D'utilisation page 18

13) Remove the components from the plaster.
5.2 Assembling the joint
► Install the ankle joint for the first fitting.
Mounting the axial washers
1) Select and insert the axial washers (see the following table for the thick­
ness of the axial washers).
2) Optimise the movement of the orthosis joint by replacing the axial wash­
ers step-by-step: Use thicker washers if there is play in the medial/lateral
direction, thinner washers if there is resistance in plantar flexion/dorsal
extension.
Orthosis joint size
17LA3N=10*, 17LA3N=12*
17LA3N=14*, 17LA3N=16*, 17LA3N=20*
Start by inserting 2 axial washers of the thickness indicated in bold.
Mounting the foot stirrup
1) Place the bearing bushing (item 1) in the foot stirrup (item 2) (see fig. 3).
2) Insert the foot stirrup together with the axial washers (item 3) into the
base body (see fig. 4). The stops of the axial washers must be positioned
in the receivers on the underside of the joint for this purpose (see fig. 5).
3) Slide the bearing nut from the back side through the base body and the
foot stirrup and use the joint screw to screw it from the front.
4) Check whether the foot component can be moved smoothly and without
play. Use axial washers of varying thicknesses if necessary.
5) Make sure that the axial washers prevent direct contact between the met­
al base body and the foot stirrup.
6) For the final assembly, secure the screw connection with Loctite 241
and the corresponding torque.
17LA3N=1­
Joint screw
Mounting the bar
► Fasten the bar to the basic piece using the countersunk head screws
and secure the screw connections with Loctite 241 and the correspond­
ing torque.
18
17LA3N=1­
0* 2*
3 (27) 3 (27)
Thickness of axial washers [mm]
0.70, 0.75, 0.80, 0.85, 0.90
0.85, 0.90, 0.95, 1.0, 1.05, 1.10
Torque in Nm (lbf in.)
17LA3N=1­
4*
5 (44.5)
17LA3N=1­ 17LA3N=2­
6*
8 (71) 8 (71)
0*