Quantcast FUEL   INJECTOR   ASSEMBLY REPAIR

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TM  9-2815-202-34 4-40.   FUEL   INJECTOR   ASSEMBLY This task covers: a.  Disassembly d.   Lapping INITIAL   SETUP MODELS TOOLS  AND  SPECIAL  TOOLS General mechanics tooI kit (App B, Item 96) Injector holding fixture (App B, Item 20) Spray tip remover (App B, Item 95) Rack hole cleaning brush (App B, Hem 95) Pin vise (App B, Item 95) Spray tip wire (App B, Item 95) Fuel hole cleaning brush (App B, Item 95) Injector body reamer (App B, Item 95) Nut reamer (App B, Item 95) Nut reamer - tip hole (App B, Item 95) Spring tester (App B, Item 93) REPAIR b.  Cleaning c. e.  Assembly f. Inspection/Measurements Testing Wire rotary brush (App B, Item 9) Spray tip carbon remover (App B, Item 95) Diesel fuel tester (App B, Item 91) Micrometer (1-2”) (App B, Item 65) Micrometer (0-1”) (App B, Item 65) MANDATORY   REPLACEMENT   PARTS 1 Seal ring (App F, Item 141) 2  Gaskets  (App  F,  Item  77) . 1 Filter (App F, Item 14) EXPENDABLE/DURABLE   SUPPLIES Fuel oil (App C, Item 21) Cleaning solvent (App C, Item 10) Lapping compound (App C, Item 25) Engine oil (App C, Item 16) Needle valve height gage (App B, Item 35) Torque wrench (App B, Item 101) Lapping blocks (App B, Item 7) EQUIPMENT  CONDITION Diesel test fixture (App B, Item 89) Injector nut socket (App B, Item 95) Para  Description Injector  tip  concentricity  gage  and 4-38  Injectors  removed  (7083-7395  and rack  freeness  tester  (App  B,  Item  92) 7083-7398) 5-37  Injectors  removed  (7083-7391, 7083-7396 and 7083-7399) a.   Disassembly (1) Place injector upright in injector holding fixture (2) Remove two shipping caps (2), two fuel  line  connectors  (3),  two  gaskets (4), and fuel filter (5) from injector. Discard  filter  and  gaskets. (3) Rotate spring until spring end is clear of  pin  (6).  Compress  follower  spring (7) by  pressing  down  on  follower  (8). Then  raise  follower  spring  above  stop pin (6) with a screwdriver and withdraw  stop  pin.  Allow  spring  to  rise gradually by releasing pressure on follower. (4) Remove follower (8), follower spring (7), and plunger (9) from injector as an  assembly. 4-222 Change 1


 


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