An air pressure gauge (Fig. 19) is installed in the dash (plumbed in after the service reservoir) so you'll know the amount of air pressure available for braking.
Figure 19. Air pressure gauge
Air Brake Manual
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is a third-party tool, and is not owned or administered by SGI.
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the translation. In case of a difference in interpretation between
the translated version and the laws and regulations governing
Saskatchewan drivers and vehicles, the laws and regulations
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Air pressure gauge