Transport Operations (Passenger Transport) Regulation 2018

Each component of the engine and driveline of the heavy bus must be inspected and may require dismantling if necessary to ensure the component is reliable and mechanically sound.

Without limiting subsection (1), ensuring each component of the engine and driveline is reliable and mechanically sound, includes ensuring—

there is adequate engine power output; and

the engine and driveline are free of oil, water, air, vacuum and exhaust leaks; and

the engine and driveline are not excessively noisy; and

the engine does not emit visible smoke continuously for more than 10 seconds when operated under load; and

each component of the transmission or driveline is free of oil leaks and excessive wear; and

the driveline is free of excessive backlash; and

rubber mounts and dampers are free of oil impregnation, cracking and deterioration.

Each axle hub assembly must be removed, dismantled, cleaned and inspected to ensure it is reliable and mechanically sound.

Each hub oil seal or gasket must be replaced.

Wheel bearings that are excessively worn must be replaced.