james Posted July 8, 2012 Share Posted July 8, 2012 MOT Test of BrakesTest DescriptionBrake efficiency and balace is usually checked on a roller brake tester. In certain cases where a roller brake tester may not be used (for example on certain 4-wheel drive vehicles) it may be necessary to check brake efficiency and balance on a road test, with a portable decelerometer.Inside the carAnti-lock braking system (if fitted) warning lamp is checked for:functionsequence of operationFootbrakesufficient reserve travel on the footbrakepedal rubber not worn to excesscorrect operation of the servo assistance systemParking brakeThis could be hand, foot or electronically operated. Checked for reserve travel so that it doesn't reach the stops on application. The mountings will be checked for security and/or corrosion.Under bonnet checksmaster cylinder and servo unit are checked for leaks with the engine on and the brakes appliedservo unit will be checked to ensure it is operating correctlyvisible metal or flexible brake pipes will be checked for corrosion, condition, fouling or leaksUnder vehicle checksflexible brake pipes and any other metal brake pipes visible beneath the car are checkeddiscs and drums (external only) checked for condition and contaminationbrake back plates and caliper securing devices are checked for condition and securitycondition of the brake pads will be checked if visibleThe assistant operates the handbrake and the condition of the linkages and/or cables is checked.on some vehicles there will be a brake compensating valve beneath the car which will need to be inspected for fluid leaksBrake performance checkThe performance of the front and rear brakes and handbrake are checked for efficiency and balance using specialised equipment. Quote Link to comment Share on other sites More sharing options...
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