Storage And Bleeding; Maintenance - Otto Bock C-Leg 3C98-3 Instructions For Use Manual

10.2 Mode for charging the prosthesis
The product is non-functional during charging.
The product is set to the safety mode resistance values. These may be low or high depending on
the setting in the adjustment software.
10.3 Safety mode
The product automatically switches to safety mode if a critical fault occurs (e.g. failure of a sensor
signal). Safety mode remains in effect until the error has been rectified.
Default resistance values are activated in safety mode. This makes limited walking possible for the
user even though the product is not active.
The switch to safety mode is indicated by beeps and vibration signals immediately prior to switch­
ing (see page 38).
Safety mode can be disabled by connecting then disconnecting the battery charger. If the
product switches into safety mode again, this means a permanent error exists. The product must
be inspected by an authorised Ottobock Service Centre.
10.4 Overheating mode
When the hydraulic unit overheats due to uninterrupted, increased activity (e.g. extended walking
downhill), the flexion resistance is increased along with the rising temperature in order to counter­
act the overheating. When the hydraulic unit cools down, the product switches back to the set­
tings that existed prior to overheating mode.
Overheating mode is not activated in the MyModes.
Overheating mode is indicated by a long vibration every 5 seconds.
The following functions are deactivated in overheating mode:
• Sitting function
• Display of the battery charge level without additional equipment
• Switching to a MyMode
• Changes to the prosthesis setting

11 Storage and bleeding

Air may accumulate in the hydraulic unit if the product is stored for longer periods and not in an
upright position. This is noticeable through sounds and irregular damping behaviour.
The automatic bleeding mechanism ensures that all functions of the product are again intact after
approximately 10 - 20 steps.
Storage
• Before storing the knee joint, the knee head has to be extended. The knee head must not be
flexed!
• Avoid extended disuse of the product (use the product regularly).
12 Cleaning
1) Clean the product with a damp cloth (fresh water) when needed.
2) Dry the product with a lint-free cloth and allow it to air dry fully.

13 Maintenance

Regular maintenance (service inspections) is mandatory in the interest of your own safety and in
order to maintain operating reliability and protect the warranty, maintain basic safety and the
essential performance characteristics, and ensure safety in regards to EMC.
The following maintenance intervals must be observed depending on the country/region:
Country/region
All countries/regions except:
USA, CAN, RUS
32
Maintenance interval
24 months