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TM9-2815-202-34 4-25.   IDLER   GEAR   REPLACEMENT This task covers: a. Removal b. Disassembly c.  Cleaning/Inspection d. Assembly e. Installation INITIAL   SETUP MODELS All TOOLS/SPECIAL   TOOLS General mechanics tool kit (App B, Item 96) Bearing test fixture (App D, Item 2) Magnetic base dial indicator (App B, Item 45) Spring scale (App B, Item 24) Torque wrench (App B, Item 101) MANDATORY  REPLACEMENT  (PARTS) 6 Bolts (App F, Item 4) EXPENDABLE/DURABLE    SUPPLIES Fuel oil (App C, Item 21) Engine oil (App C, Item 16) Lintless cord (App C, Item 26) EQUIPMENT   CONDITION Para  Description 4-24 Flywheel housing removed NOTE Before removing idler gear assembly  from  engine,  check  idler gear assembly for any wobble or shake. Firmly grasp rim of gear with both hands and rock it. If gear wobbles or shakes, bearing is bad and  must  be  replaced. a.   Removal (1) Remove bolt (1) and flat washer (2) securing  idler  gear  assembly  (3)  to cylinder  block.  Remove  idler  gear assembly  from  engine  block. NOTE Effective  up  to  engine  number 8VA-349267,  a  dummy  hub  was installed opposite idler gear hub to fit  the  original  flywheel  housing. 4 . (2) Remove bolt (4) and flat washer (5) securing  dummy  hub  (6)  to  cylinder block. Remove dummy hub (6) from engine block. Change  1 4-87


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