TM 9-2815-225-34&P
3-47. TURBOCHARGER REPAIR (Contd)
LOCATION/ITEM
ACTION
REMARKS
c. Assembly (Contd)
WARNING
The machined edges on the turbine wheel are very sharp. Wear protective gloves to avoid
being cut.
38. Bearing housing (14)
a. Insert wheel and shaft (20)
Ensure sleeve (8) and heat
through bore in bearing (13). Hold
shield (18) remain in position.
sleeve (8) to keep it from slipping
out.
b. Install turbocharger impeller (1)
If necessary, mount bearing
on wheel and shaft (20).
housing (14) in suitable press
and press on center of turbocharg-
er impeller (1).
39. Wheel and shaft (20) at
Install new impeller locknut (2)
Use a suitable socket and
turbocharger impeller
and tighten to 20-24 lb-ft
breaker bar at other end to
(1) end
(27-32 Nm).
prevent assembly from turning.
NOTE
Place turbine housing assembly on exhaust outlet end to perform steps 40, 41, and 42.
Before installing bearing housing, lubricate turbine housing bore with antiseize compound.
40.
Turbine housing (21)
Insert bearing housing (14)
Align marks made before
assembly into turbine housing (21).
disassembly.
41. Turbine housing (21) and
Install impeller housing (6) on
Align marks made before
bearing housing (14)
bearing housing (14).
disassembly.
CAUTION
Do not exceed recommended torque. This causes V-band clamp distortion and loosening.
Do not torque V-band clamp again during operation.
42. Turbocharger assembly
a. Install V-band clamp (5), two
There must be a minimum of
new screws (3), four new washers
0.035 in. (0.889 mm) clearance
(4), and two new locknuts (7).
between turbine housing (21) and
Tighten to 58-68 lb-in.
V-band clamp (5).
(6.6-7.7 Nm).
b. Install and tighten adapter (16)
Coat with antiseize compound
to 20-25 lb-ft (27-34 Nm).
before installing.
c. Install and tighten adapter (15)
Coat with antiseize compound
to 50 lb-ft (68 Nm).
before installing.
43. Turbocharger impeller (1)
Inspect for clearance between
Push the shaft toward impeller
impeller (1) wheel vanes and
housing (6) bore.
side of impeller housing (6)
bore. Minimum clearance is
0.006-0.025 in. (0.152-0.635 mm).
3-288
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