Maintenance System Ankle Joint NEURO HiSWING R+

You can find information on system components that have to be checked particularly carefully during maintenance in the instructions for use under “Maintenance”.

Demount the adjusting screw covers and check them. Demount the spring unit covers and check them as well.

Loosen the alignment screws in order to remove the spring units. Check the spring units.
Check if the system joint moves without lateral play.

Hold the lower leg shell and try to move the foot shell in pronation-supination direction.
If there is lateral play, this can indicate loosened screws and/or worn out sliding washers.

Check if there is play around the axis. If there is play, the bearing nut and the sliding bushing should be replaced or inserted if necessary.

Check if the system joint moves freely. Bring the system joint in plantar flexion/dorsiflexion.
If the system joint does not move freely, mount the next thinner sliding washer or clean the system joint thoroughly.

Note: at a bilateral orthosis, only check one system joint at a time.

Disassemble the system joint.

• Unscrew both countersunk flat head screws from the cover plate.
• Place the washer on the cover plate and screw the pressing screw, not entirely, into the thread of the first screw.
• Push the joint's upper part and the cover plate apart by exerting force on them (see arrows). This can be achieved by using a vice or by controlled knocks.
• Remove pressing screw and washer.
• Clean all system components and check them carefully.
   

• damaged sliding washer
• worn out bearing nut
• worn out screw

Exchange the sliding washer, the bearing nut or the screw for a new system component when they are worn out.

Replace the sliding bushing if it is worn out.

Demount the functional unit. Check all parts of the functional unit.

• worn out spring units

Particularly check the disc springs for wear. If you should notice e.g. a breakage, you must exchange the entire spring unit!
If the disc springs have shifted, they don’t have to be replaced. Realign shifted disc springs with pliers and grease the disc springs laterally with spray oil in order to increase the useful life of the spring units.

Proceed as follows when regreasing:

• Lay the spring unit down horizontally.
• Spray the spring unit with the spray oil.
• Rotate the spring unit slightly and spray it again.
• Repeat this process three times.

Note: spring units with coil springs can be greased with the regular orthosis joint grease as well as with the spray oil.

Replace the coil springs if they are damaged.

Particularly check the noise reduction unit for wear as well. Replace component parts if they are worn out.

Check all cables, plugs and connections. If necessary, connect the cables anew and replace brittle or damaged cables and plugs.

Connect the Expert app to the controller. Check the battery health and if the software is up-to-date. Replace the controller in case of bad battery health and update the software, if applicable.

The User app updates automatically if it has not been turned off manually. If need be, ascertain if the app is up-to-date.

Note the online tutorial for the Joint Assembly NEURO HiSWING R+ when you reassemble the system joint.