Otto Bock ROBO-WRIST Instructions For Use Manual page 28

ROBO-WRIST Servicing Procedures
Do the following if the ROBO is dirty, grimy, or neglected:
1. Remove the 2 visible socket-head screws using a 1.3 mm Allen
Wrench and unscrew the Tension Ring.
2. Remove the 2 Slip Rings and lift out the Ball Assembly.
3. If possible, push the Web Assembly up and out from the bottom.
4. If obstructed by the arm prosthesis, use a set of snap Ring Pliers
or fashion a paper clip with 2 small hooks at the ends and pull it
out by the 2 holes in the Web bowl.
5. Remove the 2 screws from the bottom of the Web Plate using a
2.0 mm Allen Wrench, keep the Coil-Spring safe and push the
Actuator Assembly out.
6. Clean disassembled parts thoroughly in Isopropyl (Rubbing
Alcohol), shake out any excess alcohol from the Actuator
Assembly & blow-dry the parts.
7. Reassemble in the reverse order.
8. After replacing the Actuator Assembly, Coil-Spring and Web Plate
onto the Web Assembly, make sure it is well centered and the
screws about ½ turn from being tight. This allows the Web
Assembly to center itself when being pushed down into the
Laminating Collar. If it goes down all the way, pull it up again,
tighten the 2 socket-head screws and push it back down.
9. Replace the 2 socket-head screws in the Tension Ring by aligning
the screw holes with the holes in the Slip Rings. Insert one screw
into the teardrop shaped hole. Turn it 1 to 2 turns. With the
Tension Ring level, turn the Tension Ring clockwise until it stops.
Proceed to replace the opposite screw and tighten both screws
but not excessively.
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