| 摘要 |
A bush (3) provided with an external thread (6) is slipped onto the cowl neck (1) and is retained releasably by means of clamping screws (5). An adjusting nut (7) provided with a recess (11) and serving as an indicator member acts on the bush (3). A driver (10) is connected firmly to the handwheel (9) and engages into the recess (11). A device designed in this way can easily be mounted at a later date. Moreover, the indicator device has only a few individual parts, and these do not require high precision in terms of their functioning. <IMAGE>
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