TM 5-6115-400-35
Note.
Note.
The wooden dowel will prevent
Use a sliding tee handle and double
damage to the thrust ring located
universal with socket to remove
between the thrust plate and the
locknut at the compressor impeller
inboard thrust bearing.
end of shaft. This method of nut
removal will prevent the shaft from
bending.
(11) Remove thrust spacer from the center
(7) Heat remainder of assembly in an oven or
housing thrust plate assembly.
furnace in controlled temperature of 350
(12) Remove sealing ring from the thrust
- 375 for 10 minutes maximum. If oil
F
spacer.
bath is used, immerse the compressor
(13) Remove thrust bearing from dowel pins in
impeller only. An electric deep fat fryer
the center housing.
filled with sufficient oil to cover the
(14) Remove impeller shaft bearing from bore
impeller is ideal for the purpose. Position
in center housing.
heat control to 350- 375 and heat the
F
(15) If oil passages in center housing are
compressor impeller for 10 minutes
suspected of being clogged, remove oil
maximum at this temperature.
reservoir plug from the center housing oil
inlet and clean oil passages to the
Caution.
bearings (fig.
To remove oil
Be careful not to damage the impeller
reservoir plug:
vanes.
Do not overheat.
Use
(a) Thread I.D. of oil reservoir plug
asbestos gloves to protect hands
with a 1/2 inch-13 tap approximately
from heat.
1/2 inch deep.
(8) Place assembly in an arbor press with the
(b) Screw 1/2 inch-13 sliding hammer
turbine wheel down. Use compressor
adapter into threads.
impeller disassembly Tool B to press
(c) Screw sliding hammer into adapter
turbine and shaft from the compressor
and bump out plug.
impeller (fig. 33B).
Caution.
Caution.
After removing oil reservoir plug,
Keep shaft centered with bearings
make certain all metal chips from the
until shaft is clear of the center
tapping operation are removed from
housing. Do not drop the turbine
oil inlet and passages in the center
wheel.
housing assembly.
(9) Remove bearing from turbine end of
e. Cleaning. The turbocharger may occasionally
center housing as follows:
require cleaning to keep both it and the engine operating
(a) Bearings are retained with a snap
efficiently. The cleaning interval is dependent upon
ring.
Use snap ring pliers and
operating conditions.
remove snap ring.
(1) Compressor End.
(b) Insert finger into bearing and
(a) Remove compressor housing as
remove bearing.
follows:
(10) Using a screwdriver, straighten tabs of the
Mark
relative
position
of
thrust plate retaining capscrews and
compressor housing to bearing
lockplates.
Remove capscrews and
housing.
Remove capscrews,
lockplates (fig. 33C). With a short length
clamps,
and
of 1/2 inch wooden dowel, carefully force
compressor housing.
the thrust plate and thrust spacer from the
(b) Rest unit on blocks in a container of
center housing.
Remove performed
cleaning fluid. The compressor
packing from thrust plate.
impeller should be down and the
shaft vertical.
(c) Using an approved metal cleaner,
fill the container only enough to
cover the compressor wheel.
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