HBS # AU0006-006 valavu yotsalira yotsalira ndi utoto wapinki, womwe umagwiritsidwa ntchito mu drum brake system.Ntchito ya valavu yotsalirayi ndikugwira kuthamanga kwa 10 lb kuchokera ku silinda ya master brake kupita ku silinda yama gudumu.Nambala ya intercharge ndi RPV10.