TM 9--2350--292--20--20450 00--1DIRECT VISION BLOCK REPLACEMENT0450 00THIS WORK PACKAGE COVERS:Removal, InstallationINITIAL SETUP:Tools and Special ToolsGeneral mechanic’s tool kit (item 1, WP 0717 00)Torque wrench (item 2, WP 0717 00)Wire twister pliers (item 67, WP 0717 00)Materials/PartsSealing Compound (item 2, WP 0716 00)Nonelectrical wire (item 349, WP 0718 00)Safety goggles (item 93, WP 0716 00)RemovalWARNING1. Remove nonelectrical wire (1). Discard nonelectrical wire.2. Remove two screws (2).3. Place one screw (2) in center hole of prism lock wedge (3) to be used as a jacking screw. Turn screw (2) clock-wise until prism lock wedge (3) and direct vision block (4) can be removed from hull.4. Remove screw (2) from prism lock wedge (3).5. Inspect parts for damage and replace as required.Figure 2304312
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