PAGE 25 of 177
CX0344 Rev 05.3
4.3. Base System Components
4.3.1. Crawler
4.3.1.1 Right Drive Module
The right drive module includes the encoder, umbilical connections and
accessory mounting point. When connected with the left drive module the
NAVIC
scanner is able to steer on an inspection surface.
NOTE:
The ability to effectively steer the crawler in the circumferential direction
decreases as pipe diameters decrease below 300 mm (12 in).
It is possible to use the right drive module independently to carry out weld
scanning when steering is not required and/or overall scanner size is a
concern.
4.3.1.1.1 Encoder
Fig. 57 - Right drive module
Fig. 58 - Encoder wheel
Содержание CX0344
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