BASE A 4N8199 - Caterpillar

Remove four friction discs (102) and three clutch plates (103) from the No. 1 (reverse) clutch housing.
Illustration 57 g01201200
Remove ring gear (104) .
Illustration 58 g01201201
Use a suitable hoist to remove shaft (105) and carrier assembly (106) from the No.1 (reverse) clutch housing. The weight of the shaft and the carrier assembly is 25 kg (55 lb).
Illustration 59 g01201202
Remove seal ring (109) from carrier assembly (106). Remove seal rings (107) and (108) from the seal carrier.
Illustration 60 g01201203
Use a soft faced hammer to push shaft (105) out of the bearing in carrier assembly (106) .
Illustration 61 g01201204
Check the condition of inner bearing race (110). If inner bearing race (110) is worn or damaged, use new parts for replacement. If inner bearing race (110) is not worn or damaged, do not remove the bearing race. Use a hammer and a chisel in order to remove inner bearing race (110) from shaft (105). Remove the pin that holds the seal carrier on shaft (105) .
Use a press and Tooling (J) to push shaft (105) out of bearing race (110) .
Illustration 62 g01201208
Use a hammer and a punch to push the spring pins through carrier assembly (106) and into planetary shafts (111). Remove planetary shafts (111) from carrier assembly (106)
Illustration 63 g01201209
Remove thrust discs (112), bearings (113), planetary gears (114) and thrust discs (115) from the carrier assembly.
Illustration 64 g01201211
Use Tooling (K) to remove retaining ring (116) that holds bearing (117) in carrier assembly (106) .
Illustration 65 g01201212
Use Tooling (G) and a press to remove bearing (117) (obscured) from carrier assembly (106) .
Illustration 66 g01201210
Remove clutch piston (118) from No. 1 (reverse) clutch housing (119) .
Illustration 67 g01201213
Remove seal rings (120) and (121) from clutch piston (118) .
Illustration 68 g01201214
Use a suitable hoist in order to turn housing (119). The weight of clutch housing (119) is approximately 43 kg (95 lb).
Use Tooling (D) to remove retaining ring (122) that holds bearing (123) in clutch housing (119) .
Illustration 69 g01201215
Use a press and Tooling (G) to push the bearing out of clutch housing (119) .