TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
Page 531 of 670
TM9-2815-202-34 (3) (4) (5) (6) (7) (8) (9) (10) Install shims (44) and back plate (43) on center housing assembly (12). Using fabricated back plate torquing tool, torque back plate to 25-30 Ib-ft (34-41 N-m). Lubricate bearing (42) with engine oil. Install bearing in turbine side of center housing assembly (12). Install snap ring (41 ) in center housing assembly. Turn center housing assembly (12) so compressor side is up. Install second bearing (42). Lightly coat seal ring (47) with silicone lubricant. Install ring in center housing assembly (12). CAUTION Do not scuff or score inner surface of bearings while pushing shaft through bearings. Turbocharger will not operate long with damaged bearing surfaces. Lubricate bearing journals of rotor assembly (31 ) with engine oil. Lower center housing assembly (12), with back plate (43) down, over rotor assembly. Install thrust washer (39) on shaft of rotor assembly (31 ). Position holes and cutout in thrust washer over pins (48). Seat thrust washer flat against center housing assembly (12). Install piston ring (40) on thrust collar (38). Install thrust plate washer (37) and thrust collar (38) in thrust plate (36). 6-49