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

Section 31 Disposition versions

2016-11-20

31. The internal components of the brakes shall comply with the following standards when the wheel, drum brake or dust shield is removed or when inspected through the inspection holes:

(1)  no mechanical component of the service, parking or emergency brake shall be missing, so worn as to affect the good working order or out of order, misaligned, not properly installed, not securely attached, broken, cracked, seized up, slack, weakened, out of shape, disconnected or damaged;

(2)  bonded brake linings shall be at least 1.6 mm thick for a hydraulic or electric braking system and at least 5 mm for a pneumatic braking system; furthermore, the riveted pads shall be at least 4.8 mm thick on the active steering axle and 8 mm on the other axles or 1 mm above the rivets, bolted linings at least 8 mm thick or 1 mm above the fittings, parking brake linings at least 1.6 mm if they are distinct from the service brake linings; those measurements shall be taken at the thinnest point excluding the bevelled part;

(3)  the linings shall not be unbound from their segment, broken, contaminated by oil or grease, cracked more deeply than half the remaining thickness or worn in an extremely uneven way; furthermore, the linings shall be securely attached to the segment and no bolt or rivet shall be missing, loose or in contact with the friction surface of the drum or disc;

(4)  the brake linings shall be adjusted according to the manufacturer’s standards, or so that the clearance between the linings and the drum, where applicable, be as reduced as possible without causing friction when the brakes are not applied; in the case of disc brakes, the brake linings shall be adjusted according to the manufacturer’s standards, or so that the clearance between the linings and the disc, where applicable, be as reduced as possible without causing abnormal resistance when the brakes are released;

(5)  the wear indicator shall not be in contact with the drum or disc;

(6)  the pistons of a hydraulic brake shall move when a light pressure is applied on the brake pedal and there shall be no fuild leaks around them, nor in the lines and fittings;

(7)  only superficial cracks caused by heat may be present and reach the outer edge of the friction surface of the drum or disc; there shall be no crack on the other parts of the drum or disc;

(8)  the inside diameter of a brake drum shall at no point be greater than the dimension stamped by the manufacturer or, where no dimension is stamped, 1.5 mm more than the original diameter in the case of a passenger vehicle, 2.3 mm more than an original diameter of 366 mm or less, 3 mm more than an original diameter if it is greater than 356 mm;

(9)  a brake drum shall not show overheating signs or signs of oil or grease contamination on the friction surface, nor have a groove whose depth increases the inside diameter in excess of the maximum value specified in paragraph 8 or a friction surface that is uneven or is out-of-round in excess of 0.25 mm in the case of a drum whose diameter is 280 mm or less or 0.63 mm if the diameter is greater;

(10)  a brake disc shall not be thinner than the stamped dimension or the dimension specified by the manufacturer and shall not have a groove whose depth reduces the thickness below the minimum value authorized, nor have a lateral deviation greater than 0.13 mm in the case of a disc whose diameter is 380 mm or less or more than 0.25 mm if the diameter is greater furthermore, the friction surface shall not be contaminated by oil or grease;

(11)  the calliper shall not be seized, cracked, broken, not securely or properly installed or leak; and

(12)  the electro-magnets of electric brakes shall be present, adequate and securely fixed.

O.C. 1483-98, s. 31; O.C. 370-2016, s. 21.

2012-09-01

31. The internal components of the service brakes shall comply with the following standards when the wheel, drum brake or dust shield is removed or when inspected through the inspection holes:

(1)  no mechanical component of the service, parking or emergency brake shall be missing, so worn as to affect the good working order or out of order, misaligned, not securely attached, broken, cracked, seized up, slack, weakened, out of shape, disconnected or damaged;

(2)  bonded brake linings shall be at least 1.6 mm thick, riveted pads at least 4.8 mm on the steering axle and 8 mm on the other axles or 1 mm above the rivets, bolted linings at least 8 mm thick or 1 mm above the fittings, parking brake linings at least 1.6 mm if they are distinct from the service brake linings; those measurements shall be taken at the thinnest point excluding the bevelled part;

(3)  the linings shall not be unbound from their support, broken, contaminated by oil or grease, cracked more deeply than half the remaining thickness or worn in an extremely uneven way; furthermore, the linings shall be securely attached to the support and no bolt or rivet shall be missing or loose;

(4)  the brake linings shall be adjusted according to the manufacturer’s standards, or so that the clearance between the linings and the drum, where applicable, be as reduced as possible without causing friction when the brakes are not applied;

(5)  the wear indicator shall not be in contact with the drum or disc;

(6)  the pistons of a hydraulic brake shall move when a light pressure is applied on the brake pedal and there shall be no fuild leaks around them, nor in the lines and fittings;

(7)  only superficial cracks caused by heat may be present and reach the outer edge of the friction surface of the drum or disc; there shall be no crack on the other parts of the drum or disc;

(8)  the inside diameter of a brake drum shall at no point be greater than the dimension stamped by the manufacturer or, where no dimension is stamped, 1.5 mm more than the original diameter in the case of a passenger vehicle, 2.3 mm more than an original diameter of 366 mm or less, 3 mm more than an original diameter if it is greater than 356 mm;

(9)  a brake drum shall not show overheating signs on the friction surface, nor have a groove whose depth increases the inside diameter in excess of the maximum value specified in paragraph 8 or a friction surface that is uneven or is out-of-round in excess of 0.25 mm in the case of a drum whose diameter is 280 mm or less or 0.63 mm if the diameter is greater;

(10)  a brake disc shall not be thinner than the stamped dimension or the dimension specified by the manufacturer and shall not have a groove whose depth reduces the thickness below the minimum value authorized, nor have a lateral deviation greater than 0.13 mm in the case of a disc whose diameter is 380 mm or less or more than 0.25 mm if the diameter is greater;

(11)  the calliper shall not be seized, cracked, broken, not securely or properly installed or leak; and

(12)  the electro-magnets of electric brakes shall be present, adequate and securely fixed.

O.C. 1483-98, s. 31.