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7 Transmission Repair
7B Eaton 750 / 751
Figure B–34. Disassemble Axle Housing
2. Position the axle housing assembly with the output
end of the axle shaft in the up position. Using No. 5
or 7 internal retaining ring pliers, remove the ball
bearing retaining ring from the axle housing.
3. Reposition the axle housing with the splined end of
the axle in the up position. Using No. 4 or 5 external
retaining ring pliers, remove the retaining ring and
thrust washer from the axle shaft.
4. Remove the axle from the axle housing by using a
small press or by tapping the splined end of the axle
shaft with a plastic faced hammer. This will dislodge
the seal and bearing from the axle housing.
5. After separating the axle shaft from the axle housing,
remove the ball bearing, seal and thrust washer from
the axle shaft. The thrust washer may be in the axle
housing.
NOTE: The retaining ring remaining on the axle shaft
need not be removed.
Figure B–35. Disassemble Planetary Gears
6. To disassemble the planetary assemblies for inspec-
tion and cleaning, first remove the ring gear (from the
secondary carrier/planet gears).
7. Next, putting a slight squeeze on the secondary carri-
er planet gears, remove the three secondary planet
gears and carrier.
8. Turn the assembly over and remove the secondary
planet gears for inspection and cleaning.
9. Remove the sun gear and remaining ring gear.
10. Again, putting a slight squeeze on the remaining car-
rier planet gears, remove planet gears and carrier
from the backup plate.
11. The planet gears may be removed for inspection and
cleaning.
Figure B–33. Remove Planetary Assemblies
Axle Disassembly (Eaton 751)
1. Carefully position the axle housing assembly on a
clean flat surface, then separate axle housing from
the planetary assemblies as shown.
A. Retaining Ring
B. Ball Bearing
C. Axle Shaft Seal
D. Axle Shaft
E. Thrust Washer
F. Axle Housing
G. Thrust Washer
H. Retaining Ring
A. Ring Gear
B. Secondary Carrier
C. Secondary Planet Gears
D. Secondary Sun Gear
E. Ring Gear
F. Primary Carrier
G. Primary Planet Gears
A
B
C
D
E
F
H
G
A
B
C
D
E
F
H
G
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