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HYDRAULIC AR 4647229 - Caterpillar

4647229 HYDRAULIC AR Caterpillar parts HYDRAULIC
Alternative (cross code) number:
Caterpillar 4647229 HYDRAULIC AR

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Illustration 24 g00669741
Remove piston assembly (37) from barrel assembly (38).
Illustration 25 g00669743
Remove retaining ball (39) from barrel assembly (38).
Illustration 26 g00669744
Illustration 27 g00669745
Sudden release of spring force can cause injury.To prevent the possibility of injury, follow the procedure to relieve the spring pressure.
Note: There is spring force against retaining ring (43). When retaining ring (43) is removed, the spring force will be released. Removal of the internal components in barrel assembly (38) should be performed in a press. This is done in order to retain spring (42) and retaining ring (43).
Use a suitable press and Tooling (A) to compress the spring in barrel assembly (38).
Use Tooling (B) to remove retaining ring (43) from the barrel assembly (38).
Remove retaining ring (43), spring (42), guide (41), and pins (40) from the barrel.
Illustration 28 g00670204
Move the swashplate up and down in order to remove control piston (44).
Illustration 29 g00670205Note: In order to release the piston rod (45) from the swashplate, lift the swashplate a little and move the piston rod sideways.
Remove piston rod (45).
Illustration 30 g00670206
Remove swashplate (46).
Illustration 31 g00670207
Remove spring (47).
Illustration 32 g00670223
Remove two swashplate bearings (48).
Illustration 33 g00670298
Remove shaft assembly (49).
Illustration 34 g00670301
Illustration 35 g00670302
Remove retaining ring (50).
Use Tooling (A) to remove seal (51).
Illustration 36 g00670360
Remove plugs (52) from pump body (27). Inspect the O-ring seals on the plugs. Replace the O-ring seals, if necessary.
Illustration 37 g00670361
Remove bearing cup (53) from pump body (27).
Illustration 38 g00670362
Use Tooling (C) and a suitable press to remove bearing cone (54) from shaft assembly (49).

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