Impeller and Oil Baffle

TM 10-3930-634-34

(2) Discard all gaskets and packing. Replace with

new parts.

e. Inspection.

(1) Inspect charge pump drive shaft and driven

shaft for damaged splines. If splines are damaged, re-

place the shaft(s).

(2) Inspect mating surfaces for burrs, nicks or

scratches. Remove burrs with a fine soft stone, being

careful not to damage the surfaces.

(3) Inspect springs for evidence of permanent set,

worn or broken condition. Replace if any of these de-

fects are found.

(4) Inspect all preformed packing and gasket mat-

ing surfaces for worn, nicked, or burred condition

which would not allow proper sealing. Replace any de-

fective part.

(5) Inspect threaded openings and hardware for

damaged threads. Chase damaged threads with the

correct size tap or die. Replace all damaged hardware.

f. Reassembly.

(1) Immerse all parts in clean transmission oil

prior to reassembly (refer to current lubrication order).

(2) Apply a thin coat of permatex no. 2 or equiva-

lent on the outer diameter of shaft seals to assure an

oil tight fit.

(3) Reassembly the charging pump in reverse or-

der of disassembly as shown in figure 4-5.

(5), and gasket (6).

g. Installation. Install the charging pump in reverse

(3) Remove three springs (7), packing (8), and two

of removal (fig. 4-4). Ensure that gasket has been im-

backup washers (9).

mersed in clean transmission oil.

(4) Remove two thrust plates (10 and 11), drive

shaft (12), and driven shaft (13).

4-4. Impeller and Oil Baffle

(5) Remove two rear thrust plates (14 and 15)

a. General. The impeller is the input element of the

from pump body (16).

torque converter assembly. It is driven by the engine.

d. Cleaning.

The turbine is the output element, driving the output

(1) Clean all metal parts with cleaning solvent

shaft and is located behind the impeller cover. These

P-D-680 and dry using compressed air.