Cleaning/Inspection-continued - TM-9-2815-224-34-P0385

TM 9-2815-224-34&P

Turbocharger Maintenance Instructions (Cont)

(3) Clean oil passages (1, 2, and 3) in center housing (4) and oil passages (5 and 6) in backplate (7).

(4) Clean oil inlet line inside and out. If oil line is dented or crimped, replace.

Compressed air used for cleaning purposes shall not exceed 30 psi (207 kPa). Use

only with effective chip guarding and personal protective equipment

(goggles/shield, gloves, etc.).

(5) Dry turbocharger parts with compressed air.

CAUTION

Do not use compressed air on hearings. Allow bearings to air dry. Compressed air

may cause damage to bearing.

(6) Allow bearings to air dry.

(7) Inspect turbocharger parts for nicks, cuts, scratches, scoring or other damage.

(8) Inspect screw threads for stripping or cross-threading.

NOTE

Measurements given in this section are for used parts.

(9) Check diameters of turbine wheel shaft journals (8 and 9) on shaft (10).

Journal diameters must be between 0.6250 and 0.6254-in. (15.875 and

15.885 mm).

(10) Inside diameter of impeller bore (11) must not be greater than

0.3749-in. (9.522 mm).

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