Adjusting The Drum Brake - Otto Bock Avantgarde CV Service Manual

Installing the brake handles / Bowden cables
1) Install the brake handles on the back tubes (Phillips head screws; Retrofitting the Drum Brake [], similar to figure).
2) Route the Bowden cables from the brake handles to the brake drums. Make sure to prevent that scraping noises
can develop.
3) Connect the Bowden cables to the brake drums.
4) Install the rear wheels and readjust the Bowden cables if necessary.
5) The maximum braking force should be attained within the first third of the brake lever travel.

3.12.6 Adjusting the Drum Brake

The braking force can be adjusted via the adjusting nut (see Fig. 157, item 1).
• Turning the adjusting screw out: the braking force is increased.
• Turning the adjusting screw in: the braking force is decreased.
1) Turn the adjusting screw out until friction noise can be heard when the wheel is turned.
2) Turn the adjusting screw in until the friction noise disappears. Then the wheel should turn freely.
3) Secure the adjusting screw by tightening the lock nut (see Fig. 157, item 2).
INFORMATION
Note that the drum brake shows sufficient braking force only when the manual brake lever is locked in the 2nd ratchet
position.
INFORMATION
Ensure that the braking force of both rear wheels is adjusted equally.
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Service Work
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