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a 1 understand from the Construction and

21st April 1967, Page 91
21st April 1967
Page 91
Page 91, 21st April 1967 — a 1 understand from the Construction and
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Which of the following most accurately describes the problem?

Use Regulations that all vehicles registered on or after January 1 1968 must have the parking brake completely separate from the service and emergency braking system and that existing vehicles may remain in operation with the parking brake included in their emergency system until 1972.

But one manufacturer advises me that its vehicles, although constructed with a parking brake as part of the emergency system, will still comply with the Regulations.

A Regulation 11(2)(a) of the Construction

arid Use Regulations 1966 No. 1288 requires that the parking brake must he independent of the means of operation of any braking system while the last line adds that it is "required . . . to have a total efficiency of not less than 50 per cent". This means that the parking brake must be independent of the service brake but can be part of the secondary system.

There is the proviso in Regulation 11(2)(b)(i) that the parking brake must be maintained in operation by direct mechanical means without air, vacuum, hydraulic or electric assistance.

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