TM 9-2520-272-34&P 4-15.      INSTALL LEFT END COVER ASSEMBLY (SHEET 5 OF 11)    27.    Push  down  on  range  input  drive  gear  (13)  to  seat gear assembly (13, 15) in operating position. 28.  Check that teeth on range input drive gear (13) and teeth on range input driven gear (11) fully mesh and that outer surfaces of gears are on the same plane.  If gears are not even, continue to work gears (13, 15) until shaft (10) and gears (11, 13, 15, 18) are all synchronized. End of Task 1 TASK 2.  INSTALL LEFT END COVER ASSEMBLY COMMON TOOLS: Extension, socket wrench, 1/2 inch square drive, 10 inch Hammer, hand, plastic faced Handle, socket wrench, 1/2 inch square drive Hoist, 200-pound minimum capacity Socket, socket wrench, 1/2 inch square drive, 9/16 inch Wrench, torque, 0-175 lb-ft SPECIAL TOOLS: Sling, three-leg (19207) 12268036 FABRICATED TOOLS: Guide Bolt, 3/8-16 x 4 inches (2 required) (refer to Appendix D) SUPPLIES: Bolt, 3/8-16 x 2 inch (2 required) Rag, wiping (Item 15, Appendix C) Washer, flat, 3/8 inch (4 required) PRELIMINARY PROCEDURE: Install loose components in left end of transmission.  Refer to this paragraph, TASK 1. NOTE • Transmission is on maintenance stand, left end turned up. • Only two legs of three-leg sling are used in this task. Go to Sheet 6 4-60  Change 2 Para.  4-15 Task 2