TM 9-2815-225-34&P 3-84.  ROCKER ARM HOUSING ASSEMBLY INSTALLATION THIS TASK COVERS: Installation INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All None SPECIAL TOOLS TROUBLESHOOTING REFERENCES None Para. 2-8 TEST EQUIPMENT EQUIPMENT CONDITION None Valve crossheads installed and adjusted (para. 3-83) MATERIALS/PARTS SPECIAL ENVIRONMENTAL CONDITIONS Gasket (15434) 3017750 Work area clean and away from blowing dirt and dust. PERSONNEL REQUIRED Automotive repairman MOS 63H GENERAL SAFETY INSTRUCTIONS None LOCATION/ITEM ACTION REMARKS Installation NOTE The following procedure covers the installation of one rocker arm housing assembly.  The installation of the remaining rocker arm housing assemblies is similar. 1. New gasket (4) Install on cylinder head assembly (5). 2. Six adjusting screws (2) Loosen three complete turns.   The six adjusting screws (2) must be loose before installing rocker arm housing assembly (3). 3. Rocker arm housing Install on new gasket (4) and assembly (3) cylinder head assembly (5). Position the six rocker assembly levers (9) so ball end of adjusting screw (2) drops into sockets of six pushrods (8). 3-640