TM 10-4320-226-146.6 ENGNE ASSEMBLY MAINTENANCE.6.6.1 Cylinder Head Maintenance.This task covers:6.6.1.1 Removal6.6.1.3 Installation6.6.1.2 AdjustmentINITIALSETUPToolsGeneral Mechanic’s Tool Kit (appendix B,Section III, Item 1)Angle of Turn Indicator Tool(appendix B, Section III, Item 11)Pushrod Tube Spring Compressor(appendix B, Section III, Item 14)Vernier Calipers (appendix B,Section III, item 3)Torque Wrench (appendix B, Section III,item 3)Material/PartsLockwashers (TM 10-4320-226-24P)Washers (TM 10-4320-226-24P)Gaskets (TM 10-4320-226-24P)Solder (appendix E,Section II, Item 10)Grease (appendix E, Section II, item 6)6.6.1.1 Removal.EquipmentConditionsEquipment shut down, refer toparagraph 2.5.1.2 or 2.5.2.2.Air Cleaner removed,paragraph 4.10.5Alternator removed,paragraph 4.10.12Starter removed, paragraph 4.10.13Engine removed, paragraph 5.5.1Injection Pump removed,paragraph 5.5.5Engine Cowlings removed,paragraph 5.5.8GeneralInstructionsDo not work on equipment withoutfollowing standard shop safetyprecautions.a.b.c.d.e.f.g.h.i.RemoveRemoveRemoveRemoveRemoveRemoveslowlyrocker cover bolt (figure 6-1, 1), lockwasher (2) and washer (3).rocker cover (4) and rocker cover gasket (5).three nuts (6) and rocker arm assembly (7).two cover plugs (8) and gaskets (9).two pushrods (10).four cylinder head bolts (11) and washers (12).lift cylinder head (13) from cylinder while keeping Pushrod cover tubeassemblies (14) steady; then remove the pushrod cover tube assemblies.Remove washer (15), pushrod cover tube (16), spring (17), cap (18), andwasher (19) from each pushrod cover tube assembly.Remove intermediate ring (20).6.6.1.2Adjustment.a.Coat a piece of 2mm resin core solder with grease and place it in position onpiston crown at right-angles to center line of engine, as shown in figure 6-1,view A, but not on any stenciling on piston.6-7
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