TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 (19) Check bearing axial end play as follows: (a) Clamp center housing assembly in soft-jawed vise. (b) Fasten magnetic base dial indicator (20) (21) (22) (32) to center housing with indicator tip resting on end of rotating shaft on compressor side. (c) Move shaft axially back and forth by hand. Total indicator reading should be between 0.003 and 0.010 inch. Repair or replace shaft assembly if readings do not fall within limits. Install turbine housing (3) on center housing (2) and align match marks. Install V-band coupling (12) on turbine housing (3) and center housing (2) so T-bolt end does not interfere with turbine housing. Apply antiseize compound to threads on T-bolt and tighten nut to 160 lb-in (18 N-m). Loosen to 50 lb-in (5.6 N-m) and retorque to 152-168 lb-in (17.2-19.0 N-m). Check shaft radial movement as follows: (a) (b) Position magnetic base dial indicator (32) on flat surface of turbine housing inlet flange. Insert dial indicator tip extension rod into oil drain hole with rod touching shaft and perpendicular. NOTE Insure adaptor rod does not contact sides of center housing or readings are invalid. (c) Grasp ends of rotating assembly and apply equal pressure at each end, moving rotating shaft toward and away from dial indicator. Crosswise movement must be between 0.003 and 0.007 inch. Change 1 5-101