Replacing The Caster Fork; Replacing The Eccentric Disc; Retrofitting The Caster Fork System Frog Legs (Spring-Mounted) - Otto Bock Avantgarde CV Service Manual

Service Work
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3.10.4 Replacing the Caster Fork

1) Loosen/remove the size 19 hex nut inside the caster fork.
2) Remove the caster fork from the threaded bolt (caster axle) and replace (see Fig. 117).
3) Set the caster fork onto the threaded bolt.
4) Retighten the hex nut with 25 Nm.
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3.10.5 Replacing the Eccentric Disc

1) Unscrew/remove the Allen head screw on the eccentric (see Fig. 118).
2) Remove/replace the eccentric disc.
3) To reassemble, perform these steps in reverse order. Tighten the screw connection to 6 Nm.

3.10.6 Retrofitting the Caster Fork System Frog Legs (spring-mounted)

1) Unscrew/remove the caster head mounting on the frame (2x size 6 Allen head screws) (see Page 36).
2) Remove the caster head adapter and the caster head.
3) Install the frog legs installation unit (caster head, frog legs caster fork: see Fig. 119) on the frame using 2 size 6
Allen head screws. In doing so, install the longer screw in the rear in travel direction.
4) Tighten the Allen head screws to 6 Nm.
5) Finally, adjust the caster wheel journal angle (see Fig. 120; see Page 37).
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