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TM9-2815-202=34 SECTION  111.   ENGINE 4-33.   PISTON   AND   CONNECTING   ROD DISASSEMBLY/ASSEMBLY MAINTENANCE   (CROSS-HEAD) l This  task  covers: a. Removal b.  Disassembly c.  Cleaning d. Inspection e. Fitting Piston f. Fitting Piston Rings g. Assembly h.  Installation-Cylinder  Kit  Assembly l INITIAL   SETUP MODELS n All * TOOLS  AND  SPECIAL  TOOLS General mechanics tool kit  (App B, Item 96) Piston ring pliers (App B, Item 66) Micrometer 1-2 inch  (App B, Item 65) Piston pin retainer installer  (App B, Item 57) Piston pin retainer leak detector  (App B, Item 63) Piston ring compressor  (App B, Rem 12) Cylinder liner hold down clamps  (App B, Item 11) Spring scale  (App B, Item 24) Feeler gage set (App B, Item 24) Torque wrench (App B, Item 101) Micrometer O-1 inch (App B, Item 65) Micrometer 4-5 inch (App B, Item 65) Piston groove gage (App B, Item 36) Ridge reamer (App B, Item 72) Ball attachment  (App B, Item 6) MANDATORY   REPLACEMENT   PARTS 2 Rings (App F, Item 125) 1 Ring (App F, Item 124) 2 Rings  (App F, Item 122) n 1 Ring (App F, Item 169)** 2 1 2 2 2 1 Expanders  (App F, Item 13) Ring (App F, Item 120) * Piston pin retainers  (App F, Item 118) Piston pin bolts  (App F, Item 5) Piston pin bolt spacers (App F, Item 157) Seal ring (App F, Item 142) EXPENDABLE/DURABLE   SUPPLIES Flat stone (App C, Item 43) Carbon-removing compound (App C, Item 7) Plastic  gage  (App C, Item 30) Engine oil (App C, Item 16) International  compound  no.  2  (App C, Item 24) Wood  block  (App C, Item 46) Crocus  cloth  (App C, Item 12) Fuel oil ( App C, Item 21) l EQUIPMENT  CONDITION Para   Description 4-20  Oil  pan  removed 4-27 Cylinder head removed 4-31 Oil pressure regulator and relief valve  removed 4-32 Oil pump and oil pump tubes removed + * Applies to engine  serial  number 8VA-294357 and above for models 7083-7398  and  7083-7399. n - ** Model 7083-7391 only. m a.   Removal CAUTION f RIDGE -1 Remove ridge at top of liner or piston ring breakage can occur. l (1) 4-132 Remove  carbon  deposits  and  ridge from upper inner surface of cylinder liner (1) using ridge removing tool. lllaoooo~  e Change  1


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