TM-9-1240-216-34 Maintenance Manual M19 and M24 Persicope Download

Page 140 of 176

TM 9-1240-216-34 4-30. IMAGE CONVERTER ELECTRON TUBE INSTALLATION (CONT) NOTE This procedure is for either tube. FRAME 2 Step 1. 2. 3. 4. 5. 6. 7. Procedure Install preformed packing (O-ring) (1) on adapter assembly (2). Install and position potted tube (3) into tube bracket (4) with short wire at nine o’clock and long wire at three o ‘clock. Using Allen wrench, install two screws (5). Line up with pin (6) and install tube bracket (4) and electron tube (3) in body assembly (7). Using screw starter, install three lockwashers (8) and three screws (9). Position two black wires (10). Using screwdriver, install lockwasher (11) and screw (12) to hold two black wires (10). Position two red wires (13). Using screw starter, install lockwasher (14) and screw (15). NOTE FOLLOW-ON MAINTENANCE Install cable (para 4-21, frame 2). Install cover (para 4-1 5). Do checkout procedure (Vol I, para 2-2). END OF TASK Para 4-30 Cont 4-56 Vol II