When air brakes begin to fail – you need to know now. The Wig Wag Low Pressure Indicator consistently provides this critical information. As air brake system pressure drops below a safe level, the Wig Wag arm (mounted above the windshield) instantly drops into the driver’s forward field of view warning “Stop Low Air”
Has Prerequisite
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TQM Wheel End Part 2 – Grit Guard® Installation
Requires TQM Wheel End Training Part 1