Heavy Vehicle Checklist
Braking Systems - How to check
- When starting the vehicle, air pressure must build up to the maximum (cut-out pressure)
- Switch off the engine - air pressure should remain constant.
- Press and hold the brake pedal - air pressure should drop a little and then remain constant.
- If the pressure continues to drop, the system has an air leak!
- Switch on vehicle and pump the foot brake pedal until the pressure drops to half of your system pressure. The low pressure indicator must warn you with a buzzing sound and a flashing light.
- The air pressure should adjust and recharge to maximum
- Air tanks must be drained daily
- Brake adjustment must be checked weekly by authorized workshop.
Tyres- How to check
- Tyre pressure must be to the manufacturer’s specification, regarding the load to be carried.
- Tyres must have a consistent tread pattern over the full width of the tyre and tread depth must not be less than 1 mm
- Tyres must be of the same size and type on the same axle
- Dual wheel tyres must not make wall contact and correct tyre size and specified air pressure must be ensured at all times.
- Both tyres on a dual wheel must make ground contact when the vehicle is unladen on a flat surface
- Always check all tyres for lumps, cracks and bulges in the side-walls. Make sure there are no obstructions wedged between dual wheels
Steering - How to check
- Steering must operate freely from lock to lock
- There should not be too much free play on the steering wheel
- The Power Steering Reservoir must be full
- Check all pipes for stone damage and leaks
- Regularly check the vehicle undercarriage for any oil or fluid leaks.
- The steering wheel of the vehicle must not be cracked.
Windscreens , Windows and Wiperblades
- A cracked or clouded windscreen that obstructs a driver’s day or night view in the “control zone” of vision will not pass a roadworthy test.
- The “control zone” runs from above the steering wheel to just under the sun visor, and falls within the driver’s windscreen wiper area.
- Windscreen and window glass must be clearly identifiable as safety glass
- Any cracks in side windows that obstruct the driver’s view in the left rear-view mirror will lead to test failure.
- Any vehicle must be fitted with at least one windscreen wiper in operation in front of the driver
- Wiper mechanisms and blades must operate effectively by adequately clearing the driver’s view when in operation.
Visibility - Lights
- The following lights are compulsory by law and must be in full working order at all times: Main beam and dipped beam (headlights), front and rear park lamps,
stop, tail and number plate lamps, indicator and hazard lamps and reverse lamps.
- Make sure all peripherals like reflective tape, reflectors and chevron boards are clean and clearly visible
- Make sure the correct signage i.e. warning diamonds are displayed and the corresponding documents are in order when transporting dangerous goods.
- All bolt-on accessories like bumpers, bars and mirrors must be fastened and secured
- Overhead storage racks must not be overloaded
- Emergency exits must be clearly marked
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