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TM 9-2815-225-34&P 3-83.  VALVE CROSSHEADS INSTALLATION AND ADJUSTMENT THIS TASK COVERS: Installation INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All None SPECIAL TOOLS TROUBLESHOOTING REFERENCES Torque driver (15434) ST-669 Para. 2-8 TEST EQUIPMENT EQUIPMENT CONDITION None Injectors installed (para. 3-82). MATERIALS/PARTS SPECIAL ENVIRONMENTAL CONDITIONS Oil, lubricating, OE/HDO 10 Work area clean and away from blowing dirt and (Appendix C, Item 20) dust. PERSONNEL REQUIRED GENERAL SAFETY INSTRUCTIONS Automotive repairman MOS 63H None LOCATION/ITEM ACTION REMARKS Installation NOTE   There is one intake valve crosshead and one exhaust valve crosshead per cylinder, or two each per cylinder head.   The  following  procedure  involves  installation  and  adjustment  of  one  exhaust  and  one intake  valve  crosshead.    Installation  and  adjustment  of  remaining  valve  crossheads  is similar. 1. Four valve stems (1), intake Lubricate valve stem ends and valve crosshead guide (7), entire valve crosshead guides (7) and exhaust valve crosshead and (8) with OE/HDO 10 guide (8) lubricating oil. CAUTION The exhaust valve crossheads and intake valve crossheads are different.  The exhaust valve crosshead is wider and has a drilled oil passage hole through the top.  Improper installation may result in engine damage. 2. Exhaust valve crosshead (2) Install on exhaust valve Adjusting screw (3) and crosshead guide (8). locking nut (4) must be towards exhaust and water ports. 3. Intake valve crosshead (5) Install on intake valve Adjusting screw (3) crosshead guide (7). and locking nut (4) must be towards exhaust and water ports. 3-636


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