Activeforever Phoenix Model 1850 Knee CPM User Manual
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MAINTENANCE
Track Seal Maintenance
Track seals serve to protect each ball screw component. If the track seal is ripped or torn, it must be replaced. A damaged
track seal allows large particles to enter the ball screw assembly, thus causing the unit to not operate properly. Remove the dry
adhesive from the unit before continuing. Replace the track seal following instructions provided with the part. The best
adhesive to use is a product that is 100% silicone, which is available for purchase from Furniss Corp. Do Not Use any kind of a
super glue or cement paste.
Ball Screw Assembly
The ball screw assembly assists the leg carriage to progress between different degrees of flexion and extension. This part of
the unit is in constant motion and it is very important that the entire assembly is properly maintained.
Ensure the screw is properly lubricated. The ball screw assembly should have a wet appearance. Excessive lubricant will
affect the performance. Furniss Corp recommends white building grease for optimum function. A lithium based lubricant is
also acceptable. We do not recommend any type of spray lubricant or grease – including WD40, or a spray silicone
product. Do not use heavy grease for lubrication.
Keep the ball screw assembly free of debris. Refer to previous track seal section for additional prevention details.
Use patient softgood set item #1828-1 for these units. Furniss Corp softgoods have been specifically designed to properly
fit the CPM unit. By using this set it will eliminate any opportunity for large pieces of debris to enter the ball screw
assembly. Please call our Client Services Department at 800.273.5233 to order the softgood pads (Item# 1828-1).
Carbon Removal from the Motor
Overtime carbon dust will be generated by the motor. The build-up of this residue can affect the efficiency of the motor. With
continuous use, the carbon should be removed from the motor every three months to extend the life of the part. Follow the
steps below to clean carbon from the motor.
Remove the motor and gearbox from the CPM unit.
Loosen the two screws at the top of the motor.
Blow compressed air through that opening which will remove the dust.
Summary
These are just a few maintenance suggestions to assist in the performance and longevity of the CPM units. Contact the
Technical Service Department before purchasing any replacement parts for your CPM unit. Furniss Corp is the only supplier for
original equipment parts. Should the CPM unit require service, please do not hesitate to contact us. As always, we are here to
answer any questions and help with any issues regarding the CPM units.