TM 5-3805-254-34
6-40.
GEAR UNIT REPAIR (Con’t).
NOTE
• Disassembly of rear planetary carrier Is required only if obvious wear or damage is evident.
• Perform steps 21 through 24 to disassemble REAR planetary carrier.
21.
Using 3X2 in. drill bit, center drill bit over one
end of each of four planetary pins (40).
22.
Drill downward into each planetary pin (40) until
swaged end of each planetary pin is weakened
for removal. Ensure that metal of rear planetary
carrier (35) is not removed.
NOTE
As each pinion pin is removed, keep
pinion gear and four thrustwashers
together as a set.
23.
Press four planetary pins (40) from rear
planetary carrier (35). Remove four pinion gears
(38), eight steel thrustwashers (36), and eight
bronze thrustwashers (37). Discard planetary
pins.
24.
Remove roller bearing (39) from each of four
pinion gears (38).
b.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, Is toxic and flammable. Always wear protective goggles and gloves, and
use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and DO NOT breathe
vapors. DO NOT use near open flame or excessive heat. The solvent's flash point Is 1000F-1380F
(380C-590C). If you become dizzy while using cleaning solvent, immediately get fresh air and medical
help. If solvent contacts eyes, immediately wash your eyes and get medical aid. 1. Clean metal parts
with dry cleaning solvent.
NOTE
Pinion gears are a matched set. If any pinion gear needs replacing, all In set must be replaced.
2.
Inspect metal parts for cracks, breaks, wear, and other damage. Replace if damaged.
3.
Inspect roller bearings for wear or damage. Replace if damaged
TA703906
6-191
