TM 9-2520-246-34-1 b. High Range Position. FRAME 1 1. 2. 3. 4. 5. Push shifter shaft (1) all the way in. Turn input shaft (2) to the right by hand. Rear output shaft (3) should turn and f rent output shaft (4) should not turn. If rear output shaft (3) does not turn, do the following: a. Remove top cover and shifter shaft. Refer to para 2-14k, frame 1. b. Replace top cover and shifter shaft. Refer to para 2-22d, frame 2. If front output shaft (4) turns, do the following: a. Remove front output case assembly. For model T-136-27, refer to para 2-14d. For model T-136-21, refer to para 2-14f. b. Make sure that all parts are free to turn in front output case assembly. c. Replace front output case assembly. For model T-136-27, refer to para 2-22m. For model T-136-21, refer to para 2-22k. END OF TASK 2-285