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TM 9-2815-225-34&P 3-47.  TURBOCHARGER REPAIR THIS TASK COVERS: a.  Disassembly c.  Assembly b.  Cleaning and Inspection INITIAL SETUP: APPLICABLE MODELS PERSONNEL REQUIRED All Automotive repairman MOS 63H SPECIAL TOOLS REFERENCES (TM) None MI-I-6866 TEST EQUIPMENT TROUBLESHOOTING REFERENCES None Para. 2-8 MATERIALS/PARTS EQUIPMENT CONDITION Oil, lubricating, OE/HDO 30 Turbocharger removed (para. 3-13). (Appendix C, Item 21) Compound, antiseize (Appendix C, Item 7) SPECIAL ENVIRONMENTAL CONDITIONS Bearing insert pad (15434) 170510 Work area clean and away from blowing dirt and Two screws (15434) 194010 dust. Four washers (15434) 5-631 Two locknuts (15434) 167299 GENERAL SAFETY INSTRUCTIONS Insulation packing (15434) 202377    Machined edges on wheel and shaft and on tur- Ring seal (15434) 154644 bocharger impeller are very sharp.  Wear protec- Two turbocharger seals (15434) 3032836 tive gloves. O-ring (15434) 202456    Always wear eye protection when using com- Impeller locknut (15434) 3-222A pressed air. LOCATION/ITEM ACTION REMARKS a.  Disassembly NOTE The turbocharger used on the M915A1/Big Cam III has been changed for greater efficiency. The repair procedures for M915/Big Cam I and M915A1/Big Cam III turbocharger are the same.  Only size and part numbers have changed. 1.   Adapters (15) and (16) Remove from housing (14). 2.   Housings (6), (14), and Mark (5), (6), (14), and (21) to help Make marks at convenient points (21), and clamp (5) in alignment during reassembly.   with chalk or felt-tip marking pen (see illustration). 3.   Two locknuts (7), screws (3), Remove from V-band clamp (5). Discard screws (3), washers (4), and four washers (4) and locknuts (7). 4.   V-band clamp (5) Remove from housing (14). Retain damp (5) for reassembly. 5.   Impeller housing (6) Lift off housing (14). Use soft-nose hammer to loosen impeller housing (6) from bearing housing (14). 6.   Turbine housing (21) and Position turbine housing (21) on Support bearing housing (14) with bearing housing (14) workbench with mounting flange wood shim placed between of exhaust manifold mating workbench surface and bearing surface facing down. housing (14). 3-276


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