Otto Bock 3R21 Instructions For Use Manual page 18

Adjusting the swing phase friction
7
• on page 5:
: Increasing the axle friction
: Reducing the axle friction
► For adjusting the swing phase friction, note Figure
► CAUTION! The prosthetic knee joint has to reach full extension,
even at slower walking speeds. Observe the information under
the heading "Fine-tuning the settings".
► Adjust the swing phase friction so that the prosthetic knee joint
does not swing too hard against the extension stop and so that
the prosthetic foot swings through sufficiently according to the
needs of the patient.
Fine-tuning the settings
► CAUTION! The various settings of the prosthetic knee joint can­
not be adjusted entirely independently of each other. When the
settings cannot be fully adjusted to the comfort needs of the
patient, the settings should be established primarily based on
safety aspects.
► Adapt the settings of the prosthetic knee joint to the patient by
means of fine-tuning and exercises.
► If the extension position is not reached with every step and at any
walking speed, reduce the braking effect and/or increase the ini­
tial tension of the extension assist.
► Check the adjustment of the prosthesis settings during normal
consultations and the annual safety inspection.
Advise the patient to check the prosthesis if changes in function
occur.
7.5 Attaching the cosmetic cover
CAUTION
Use of highly hygroscopic particles (grease-absorbent sub­
stances such as talcum)
Risk of injury, damage to the product due to lack of lubrication
18
► Do not allow the product to come into contact with highly hygro­
scopic particles.
► After affixing the cosmetic elements, verify proper functioning of
the prosthesis.
7
on page 5.
► To reduce friction and to eliminate noise, apply silicone spray dir­
ectly onto the contact surfaces of the cosmetic foam cover.
7.6 Finishing the prosthesis
► CAUTION! To avoid product damage and the risk of falling, finish
the prosthesis by replacing set screws that are too short or too
long, and by tightening all screw connections. In doing so, note
the instructions for use for all prosthesis components regarding
torque values and thread lock.
8 Use
8.1 Information for use
NOTICE
Mechanical overload
Impaired functionality due to mechanical damage
► Check the product for damage prior to each use.
► Do not use the product if its functionality has been impaired.
► Take any necessary measures (e.g. repair, replacement, inspec­
tion by the manufacturer's customer service, etc.).
8.2 Cleaning
CAUTION
Use of unsuitable cleaning agents or disinfectants
Impairment of functionality and damage due to incorrect cleaning
agents or disinfectants
► Clean the product only according to the instructions given in this
section.