TM 10-3930-659-34 5-8. TURBOCHARGER TEST AND REPAIR (Con’t). CAUTION DO NOT spray dry cleaning solvent directly into compressor or turbine housing.  Direct spray may damage parts. 1. Clean    exterior    of    turbocharger    (1)    with    dry cleaning solvent. Dry thoroughly with compressed air. 2. Using   dial   indicator   set,   position   indicator   tip through   center   housing   oil   return   (2)   until   it contacts  wheel  and  shaft  assembly  (3).    Zero dial indicator. 3. Hold wheel and shaft assembly (3) at both ends, and   move   up   and   down   with   equal   pressure. Ensure  that  rotation  is  in  same  direction  as  dial indicator tip travels.  Maximum allowable bearing clearance is 0.006 in.  (0.152 mm). 4. Remove   dial   indicator   from   center   housing   oil return  (2)  and  position  so  indicator  tip  rests  on end of wheel and shaft  assembly  (3).    Zero  dial indicator. 5. Move  wheel  and  shaft  assembly  (3)  back  and forth.    Maximum  allowable  end  play  is  0.004  in. (0.102 mm). b.          DISASSEMBLY 1. Mark  turbine  housing  (6),  compressor  housing (4),    and    center    housing    (5)    to    aid    during assembly. 2. Remove  six  screws   (9),   three   lockplates   (10), and compressor housing (4) from center housing (5). 3. Remove  six  screws  (7),  two  lockplates  (8),  and center housing (5) from turbine housing (6). 5-56

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