C-24.2, r. 32 - Regulation respecting safety standards for road vehicles

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166. The following are major defects in a pneumatic braking system:
(1)  a flexible line that bulges when under pressure or a thermoplastic line that is worn to the second layer of color or the second braid;
(2)  an air line fitting that does not comply with the manufacturer’s standards for its application;
(3)  the driving belt of the air compressor that has a cut that will very likely lead to a breakdown;
(4)  an air compressor that is not securely mounted or whose pulley is cracked or broken or a compressor that is unable to reach or to maintain a minimum pressure of 620 kPa while the engine is idling, the service brake is fully applied and the parking brake is released;
(5)  an air pressure loss, after the service brake has been fully applied for a minute while the air pressure is at the maximum, the engine is off and the parking brake is released, that exceeds
(a)  40 kPa for a single-unit road vehicle;
(b)  48 kPa for 2 vehicles;
(c)  62 for 3 vehicles;
(6)  the safety valve of the tractor truck that is absent or does not maintain a minimum of 138 kPa while it is towing a trailer or semi-trailer equipped with pneumatic brakes;
(7)  the angle between the centre of the roll and the lowest position of the cam that is greater than 120º degrees where the brake linings touch the drum;
(8)  different sizes of brake chambers or brake levers mounted on an active steering axle;
(9)  the travel of the control rod of 20% or more of the brake chambers of a road vehicle that exceeds by 6.4 mm or more the maximum setting value provided by the manufacturer; and
(10)  none of the low pressure visual and warning lights or buzzers indicating a pressure lower than 380 kPa is working.
O.C. 1483-98, s. 166; 370-2016O.C. 370-2016, s. 82.
166. The following are major defects in a pneumatic braking system:
(1)  a flexible line that bulges when under pressure;
(2)  an air line fitting that does not comply with the manufacturer’s standards for its application;
(3)  the driving belt of the air compressor that has a cut that will very likely lead to a breakdown;
(4)  an air compressor that is not securely mounted or whose pulley is cracked or broken or a compressor that is unable to reach or to maintain a minimum pressure of 620 kPa while the engine is idling and the service brake is fully applied;
(5)  an air pressure loss, after the service brake has been fully applied for a minute, that exceeds
(a)  40 kPa for a single-unit road vehicle;
(b)  48 kPa for 2 vehicles;
(c)  62 for 3 vehicles;
(6)  the safety valve of the tractor truck that is inadequate;
(7)  the angle between the centre of the roll and the lowest position of the cam that is greater than 120º degrees where the brake linings touch the drum;
(8)  different types or sizes of brake chambers or play adjusters mounted on the steering axle; and
(9)  the travel of the control rod of a brake chamber for a vehicle with 2 axles, or of 2 brake chambers for a vehicle with 3 axles or more, that exceeds by 6.5 mm or more the maximum setting value provided by the manufacturer.
O.C. 1483-98, s. 166.