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TM 5-4210-220-34
3-7.
TRANSMISSION-Continued
(7)
Lift main shaft assembly (15) from the gear unit. Center planetary ring gear (16), and rear planetary sun
gear (17) are attached.
(8)
Remove snap ring (18), and remove main shaft assembly (15) from rear planetary sun gear (17). If orifice
plug (19) in shaft requires replacement, remove it.
(9)
Remove snap ring (20) and separate ring gear (16) and sun gear (17).
(10)
Remove thrust race (21), needle bearing (22), and thrust race (23).
(11)
Remove snap ring (24). Remove rear planetary carrier assembly (25) from planetary connecting drum (8).
Set unit clear of immediate work area for further inspection and rebuild.
(12)
If sun gear shaft bushings were removed, install new bushings using retaining compound (item 23,
Appendix B) on bushing circumference.
(13)
Position bushing (12) at bore of shaft (11). Aline interlock split so that it is more than 45 deg. from the
swaging hole in the shaft.
(14)
Using bushing installer tool J24201 long end, press new bushing (12) to 0.360 in. (9.14 mm) below end
surface into the small OD end of shaft (11).
NOTE
Use a minimum of 500 lb (2224 N) assembly force on bushing installer.
(15)
Install bushing (13) in the same manner as bushing (12) except, use short end of tool J24201. Press new
bushing (13) to 0.260 in. (6.60 mm) below end surface into the large OD end of shaft (11).
(16)
Using swaging tool J26997-A, swage both bushings into holes in sun gear shaft.
3-51
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