Section 3(8) in Technical Specifications of HVAC Ordinary Bus
8.0Braking System .- 8.1 The braking system shall be full pneumatic type with fail-safe dual circuit having four-way protection valve, auto slack adjuster, drum brake (front and rear wheels) with asbestos brake lining etc. The friction material shall be non-asbestos type having temperature and wear characteristic suitable for intensive operation. Brake squeal shall be absent under normal conditions of operation. An air compressor which minimizes oil carry over shall be fitted. The braking system shall be fitted with air dryer and oil/ water separator system. The buses shall also be provided with hand operated pneumatic flick valve type parking brakes at rear wheels. The air pressure line shall be treated for corrosion resistance.
