TM 5-3820-245-14&P
1. Disassembly Torque Converter.
a. Disassembly requires some means of supporting the converter assembly on the bench. The
simplest form is a hole in the bench top, slightly longer than the impeller hub, or a hollow square
approximately 8 inches made with two, two-by-fours. The front cover assembly will then be
uppermost so the lock nuts can be removed from the cover bolts and the front cover assembly and
O-Ring gasket can be removed.
b. Next, remove the turbine forward thrust washer from the turbine assembly. The turbine assembly
can then be removed.
c. In removing the stator and sprag assembly, care should be taken in order that the thrust washers and
races are not allowed to drop onto the bench, as the highly machined surfaces may be damaged.
The stator thrust washer, the sprag, and the inner and outer races are held in the stator assembly by
snap rings; thus this can be removed as a unit. Further disassembly is accomplished by
compressing the snap ring so that it can be removed from the groove on the stator.
d. If the impeller hub has been damaged, or the O-Ring gasket is faulty, it will be necessary to remove
the impeller hub. Turn the impeller assembly over and remove the eight screws and lockwashers
which fasten the hub to the assembly, thus making the seal available for inspection.
2. Reassemble Torque Converter
a. Thoroughly clean and inspect all parts.
1) A new hub seal should be placed on the flange of the impeller hub. The hub should then be
placed in the machine recess of the impeller assembly with the tapped holes lined up so the
lockwashers and the capscrews can be installed. The complete assembly should then be placed
on the bench with the hub down. Do not install front hub seal ring at this time.
2) If the sprag is replaced, it is also advisable to replace the inner and outer race as there is no
means of compensation for unequal wear on these parts.
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