EDGE-CUTTING 4945878 - Caterpillar

Remove pistons (24) from retaining plate (25), as shown.
Illustration 18 g00714391
Remove retaining ball (26) from barrel assembly (23).
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Sudden release of spring force can cause injury.To prevent the possibility of injury, follow the procedure to relieve the spring pressure.
Install Tooling (C), as shown. Note: There is spring force against retaining ring (27). When retaining ring (27) is removed, the spring force will be released. Removal of the internal components in barrel (23) should be performed in a press. This is done in order to retain spring (28) and retaining ring (27).
Use a suitable press and Tooling (C) in order to compress spring (28) in barrel assembly (23).
Use Tooling (D) in order to remove retaining ring (27) from the barrel assembly.
Remove spring (28), guide (29), and pins (30) from the barrel.
Illustration 22 g00714396
If necessary, remove stops (31) from swashplate cradle (22).
Illustration 23 g00714397
Remove swashplate bearings (32) from pump housing (6).
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Use Tooling (D) in order to remove retaining ring (33) from pump housing (6).
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Remove lip seal (34) from housing assembly (6).
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Remove bearing cup (35) from pump housing (6).
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Remove ring (36) from pump housing (6).
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Remove O-ring seals (37) from valve assembly (38).
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Remove O-ring seals (41) and locking nut (40) from valve assembly (39).
Illustration 31 g00714430
Remove O-ring seal (48) from stem assembly (49).
Remove spring (47), spring (46), and plunger (45) from valve assembly (39).
Remove plug (42), O-ring seal (43), and spool (44) from valve assembly (39).
Repeat Steps 35 through 37 for the remaining valve assembly (38).