TM 10-3930-669-20 4.  NO LIFT AND SHIFT FUNCTIONS (CONT). KNOWN INFO TEST OPTIONS Transmission operates. Hydraulic fluid level OK. Hydraulic  tank  to  pump  suction  hose OK. Hydraulic pump OK. Priority valve OK. Verify repair. POSSIBLE PROBLEMS REASON FOR QUESTION If  lift  and  shift  cylinders  operate, fault has been corrected. 2-448 ¬