JACK- 4C4089 - Caterpillar

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Install O-ring seals (26) and O-ring seal (27) to housing assembly (25).
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Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install housing assembly (25).
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Install valve body (24).
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Install O-ring seal (23), O-ring seals (22), and O-ring seals (21).
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Install plug (20) and the O-ring seal to valve block (4). Install fittings (18) and (19) and the O-ring seals. Make sure that the orientation of fitting (18) is correct.
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Install orifice (17).
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Install fitting (16) and the O-ring seal. Make sure that the orientation of fitting (18) is correct.
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Install O-ring seal (9) to shuttle valve (8). Install O-ring seal (10) and backup ring (11). Install backup ring (14) and O-ring seal (15). Install O-ring seal (12) and backup ring (13).
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Install shuttle valve (8). Tighten shuttle valve (8) to a torque of 70 7 N m (52 5 lb ft).
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Install O-ring seals (7) and (6) to main relief plug (5).
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Install main relief plug (5). Tighten main relief plug (5) to a torque of 65 7 N m (48 5 lb ft).
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Install valve block (4).
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Install nuts (3). Tighten nuts (3) to a torque of 105 10 N m (77 7 lb ft).
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Connect harness assemblies (1). Install bolt (2).End By:
Install the auxiliary control valve.