TM 5-1940-322-24
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TURBOCHARGER REPAIR (Contd)
CLEANING AND INSPECTION (Contd)
3. Inspect shaft and wheel (22) for wear, scratching, and galling. Minor scratches are acceptable if they
can be polished out using crocus cloth. If not acceptable, replace shaft and wheel (22).
4. Inspect turbine blades for cracks, bends, or chipped blades. Replace if defects are present.
5. Inspect bearing housing (32) for scratches and wear. Replace if unable to polish out scratches with
crocus cloth.
6. Inspect compressor impeller (6) for cracks, bends, and chips. Replace if defect is present.
ASSEMBLY
NOTE
Prior to assembly lubricate all parts with thin coat of engine oil.
1. Install new sealing washer (27) and plug (28) in turbine housing (29).
2. Install new sealing washer (27) and adapter (26) in turbine housing (29).
3. Install new split ring seal (21), heat shield (20), new retaining ring (18), new bearing (19), and new
retaining ring (18) on shaft and wheel (22).
4. Install shaft and wheel (22) on bearing housing (32).
5. Install new retaining ring (14), new bearing (15), and new retaining ring (14) on shaft and wheel (22).
6. Install new thrust collar (13) and new thrust bearing (12) on bearing housing (32) with three
screws (33).
7. Install oil baffle (11), oil slinger (10), and new split ring seal (9) on shaft and wheel (22).
8. Install new O-ring seal (4) and new ring seal (8) on diffuser (7).
9. Install bearing housing (32) on diffuser (7) with four screws (23).
10. Install impeller (6) on shaft and wheel (22) with nut (5).
11. Install bearing housing (32) on turbine housing (29) with two clamping plates (17) and four
screws (16).
12. Install diffuser (7) on housing (1) with clamp (2) and nut (3).
13. Install new gasket (24) and drain connector (25) on bearing housing (32) with new sealing
washers (31) and screws (30).
17. Start engine and check for leaks (TM 5-1940-322-10).
18. Close battery hatch (TM 5-1940-322-10).
19. Close engine hatches (TM 5-1940-322-10).
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