TM 9-2320-361-34 16-21. TRANSFER CASE POWER TAKEOFF (PTO) MAINTENANCE THIS TASK COVERS: a. Removal c. Inspection and Repair b. Cleaning d. Installation INITIAL SETUP APPLICABLE MODELS M49A2C, M50A2, M50A3, M756A2, and M764 TOOLS General mechanic’s tool kit (Appendix B, Item 1) Torque wrench, 3/4-in. dr. (Appendix B, Item 6) Mechanical puller kit (Appendix B, Item 22) 1-1/2-in. socket, 3/4-in. dr. MATERIALS/PARTS Six lockwashers (Appendix F, Item 147) Gasket (Appendix F, Item 78) Cotter pin (Appendix F, Item 6) Two studs (Appendix F, Item 266) Woodruff key (Appendix F, Item 296) Sealing compound (Appendix C, Item 17) REFERENCES (TM) TM 9-2320-361-34P TM 9-2520-246-34-1 TM 9-2520-246-34P (Appendix B, Item 41) EQUIPMENT CONDITION Transfer case removed (para. 9-2). a. Removal NOTE Perform step 1 for M756A2 vehicles. 1. Remove cotter pin (9), nut (8), sprocket (21), and woodruff key (11) from power takeoff (PTO) spindle (10). Discard cotter pin (9) and woodruff key (11). 2. Loosen setscrew (6) and remove cotter pin (9), nut (8), yoke (7), and woodruff key (11) from PTO spindle (10). Discard cotter pin (9) and woodruff key (11). 3. Disconnect line (1) from oil pump (12). 4. Remove four screws (13), lockwashers (14), two nuts (4), lockwashers (3), PTO (5), and gasket (15) from transfer case (2). Discard lockwashers (14) and (3) and gasket (15). 5. Remove screw (19), washer (18), and clamp (17) from transfer case (2). 6. Remove line (1) and elbow (16) from transfer case (2). b. Cleaning Remove gasket material and debris from transfer case (2) and PTO (5) mating surface. c. Inspection and Repair 1. Check PTO (5) and transfer case (2) mating surface for scratches, cracks, and galling. Refer to TM 9- 2520-246-34-1 if scratched, cracked, or galled. 2. Check PTO gear for wear, cracks, and discoloration. Refer to TM 9-2520-246-34-1 if gear teeth are worn, cracked, or discolored. 3. Inspect studs (20). Replace studs (20) if damaged (para. 2-9). 16-98