View and Download Ryobi C430 operator's manual online. 30CC 4-CYCLE STRING TRIMMERS. C430 Trimmer pdf manual download. Also for: Ry34422, S430, Ry34442.. Important note: There are a number of different Ryobi trimmers that use the BC30 designation. Please check your model number (beginning with RY) and be sure it corresponds with the model number shown on this breakdown.. Important note: There are a number of different Ryobi trimmers that use the SS30 designation. Please check your model number (beginning with RY) and be sure it corresponds with the model number shown on this breakdown..