GEAR 3685687 - Caterpillar

Illustration 8 g00829780
Remove O-ring seals (17) from input stage ring wheel (14) .
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Remove retaining ring (18), input stage sun gear (19), and input shaft (20) .
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Remove input stage planet gears (21) and input planet carrier (22) as a unit.
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Remove retaining rings (23), retaining washers (24), input stage planet gears (21), and 54 needle bearings (25) .
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Remove middle stage sun gear (26) .
Remove middle stage planet gears (27) and middle stage planet carrier (28) as a unit.
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Remove retaining rings (29), retaining washers (30), middle stage planet gears (27), and 108 needle bearings (31) .
Illustration 14 g00829786
Remove output stage sun pinion (32) and ring wheel (16) .
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Remove O-ring seal (33) .
Remove retaining rings (34). Use a suitable puller and remove output stage planet gears (35) .
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Illustration 17 g00829789
Secure hub (37) to a suitable table.
Use Tooling (A) and remove ring nut (36). It may be necessary to apply heat to the ring nut in order to remove the ring nut.
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Remove rotating housing (38) and bearing (39) .
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Remove rotating housing (38) and bearing cups (40) .
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Remove spacer (41), shims (42), and bearing (43) .
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Remove the first half of duo-cone seal gp. (44) .
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Remove the second half of duo-cone seal gp. (45) .