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Interpretation ID: aiam1871

Mr. Kazuhiko Aoki,2-3 Nihonbashi Koami-cho,1-chome,Chuo-ku, Toykyo, Japan 103; Mr. Kazuhiko Aoki
2-3 Nihonbashi Koami-cho
1-chome
Chuo-ku
Toykyo
Japan 103;

Dear Mr. Aoki:#This responds to your January 30, 1975, question whethe the test procedure of S7.7.1 in Standard No. 105-75, *Hydraulic brake systems*, refers to the parking brake in the next to the last sentence which states that it 'may be necessary to reapply *it* if the vehicle move slightly' (emphasis added).#The word 'it' refers to the service brake system, and not the parking brake system. This sentence permit application of the service brake system slack due to rotation of the brake shoes and drum prior to bottoming against the anchor pin.#Sincerely,James C. Schultz,Chief Counsel;