Ordnance Maintenance: Engine and Engine Accessories for Light Tank T9E1 1943-08-06 "The instructions contained in this manual are for the information and guidance of personnel charged with the maintenance and repair of the Light Tank T9E1. These instructions are supplementary to field and technical manuals prepared for the using arms. This manual does not contain information which is intended primarily for the using arms, since such information is available to ordnance maintenance personnel in 100-series TM's or FM's."