TM 5-2420-230-24-2
Aftercooler Assembly - Cleaning and Inspection for Reuse (10-02)
Section 10 - Air Intake System - Group 10
Page 10-6
B Series Shop Manual
Push the compressor impeller by hand toward the com-
pressor housing.
Install a wire feeler gauge, at the minimum clearance
point, between the impeller and the housing to measure
the clearance.
Record this clearance.
With the feeler gauge in the same location, push the
turbine wheel by hand away from the compressor hous-
ing.
Install a wire feeler gauge, at the same point.
Record this clearance.
Subtract the smaller from the larger clearance.
Radial Clearance
mm
in
0.30
MIN
[0.012]
0.46
MAX
[0.018]
If the radial clearance does not meet the above specifi-
cations, the turbocharger must be rebuilt. Refer to Turbo-
charger Components Shop Manual, Bulletin No. 3810321,
for rebuild instructions.
Aftercooler Assembly - Cleaning and
Inspection for Reuse (10-02)
Remove all gasket material from the mounting surfaces.
Warning: When using a steam cleaner, wear protective
clothing and safety glasses or a face shield. Hot steam
will cause serious personal injury.
Use solvent or steam to clean the aftercooler assembly.
Dry with compressed air.
Inspection
Visually inspect the aftercooler assembly for cracks or
damage. Replace if damaged.