Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.
Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
Note: Lubricate all of the O-ring seals and backup rings before assembly.
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. |
- Install valve (109), plate (108), spring (107), retainer assembly (106), and nut (105) into body (110). Tighten nut (105) to a torque of
50 ± 7 N·m (37 ± 5 lb ft) .Show/hide table
Illustration 2 g01256842 - Install rods (102) from manifold assembly (103). Install valve assembly (104). Tighten valve assembly (104) to a torque of
65 ± 7 N·m (48 ± 5 lb ft) .Show/hide table
Illustration 3 g01256857 Show/hide table
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 seat (99). Tighten seat (99) to a torque of
22 ± 2 N·m (16 ± 1 lb ft) . - Install valve (97), spring (96), washers (95), retainer assembly (94), and nut (93) onto housing (98). Tighten nut (93) to a torque of
35 ± 5 N·m (26 ± 4 lb ft) . - Install backup ring (100) and O-ring seal (101).
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Illustration 4 g01256841 Show/hide tableImproper 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 valve (89), shims (88), spring (87), valve assembly (86), and bolts (85). Tighten bolts (85) to a torque of
60 ± 12 N·m (44 ± 9 lb ft) . - Install orifice (91) and plug (90). Tighten orifice (91) to a torque of
7 ± 3 N·m (62 ± 27 lb in) . - Install the O-ring seals and the backup rings from valve assembly (92). Install valve assembly (92).
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Illustration 5 g01256351 Show/hide tableImproper 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 spacer (81), retainer (80), spring (79), washer (78), housing (77), and bolts (76). Tighten bolts (76) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) . - Install the O-ring seals and the backup rings onto plug (82). Install valve (84), spring (83), and plug (82). Tighten plug (82) to a torque of
145 ± 15 N·m (107 ± 11 lb ft) .Show/hide table
Illustration 6 g01256774 Show/hide tableImproper 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 stem (75), retainer (74), springs (72) and (73), shims (71), retainer (70), and bolt (69). Tighten bolt (69) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) . - Install housing (68) and the O-ring seal. Install bolts (67). Tighten bolts (67) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) .Show/hide table
Illustration 7 g01256769 Show/hide tableImproper 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 the O-ring seals and the backup rings onto plug (63). Install plug (63). Tighten plug (63) to a torque of
145 ± 15 N·m (107 ± 11 lb ft) . - Install poppet (66), spring (65), and plug (64). Tighten plug (64) to a torque of
300 ± 40 N·m (221 ± 30 lb ft) .Show/hide table
Illustration 8 g01256349 - Install valve assembly (62).
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Illustration 9 g01256347 - Install orifice (60) and plug (59). Tighten orifice (60) to a torque of
7 ± 3 N·m (62 ± 27 lb in) . - Install the O-ring seals and the backup rings onto valve assembly (61). Install valve assembly (61). Tighten valve assembly (61) to a torque of
32 ± 5 N·m (24 ± 4 lb ft) .Show/hide table
Illustration 10 g01256346 Show/hide tableImproper 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 seat (56). Tighten seat (56) to a torque of
22 ± 2 N·m (16 ± 1 lb ft) . - Install valve (54), spring (53), washers (52), retainer assembly (51), and nut (50) onto housing (55). Tighten nut (50) to a torque of
35 ± 5 N·m (26 ± 4 lb ft) . - Install backup ring (57), and O-ring seal (58).
Show/hide table
Illustration 11 g01256345 Show/hide tableImproper 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 valve (47), spring (46), valve assembly (45), and bolts (44). Tighten bolts (44) to a torque of
60 ± 12 N·m (44 ± 9 lb ft) . - Install cover (49) and bolts (48). Tighten bolts (48) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) .Show/hide table
Illustration 12 g01256616 Show/hide tableImproper 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 stem (43), retainer (42), springs (41) and (40), shims (39), retainer (38), and bolt (37). Tighten bolt (37) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) . - Install housing (36) and the O-ring seal. Install bolts (35). Tighten bolts (35) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) .Show/hide table
Illustration 13 g01256614 Show/hide tableImproper 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 poppet (34), spring (33), and plug (32). Tighten plug (32) to a torque of
300 ± 40 N·m (221 ± 30 lb ft) . - Install the O-ring seals and the backup rings onto plug (31). Install plug (31). Tighten plug (31) to a torque of
145 ± 15 N·m (107 ± 11 lb ft) . Repeat for the opposite side.Show/hide table
Illustration 14 g01256214 - Install valve assembly (30).
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Illustration 15 g01256212 - Install orifice (27). Tighten orifice (27) to a torque of
7 ± 3 N·m (62 ± 27 lb in) . - Install orifice (28). Tighten orifice (28) to a torque of
16 ± 3 N·m (142 ± 27 lb in) . - Install plug (29).
- Install the O-ring seals and the backup rings onto valve (26). Install valve (26). Tighten valve (26) to a torque of
16 ± 3 N·m (142 ± 27 lb in) .Show/hide table
Illustration 16 g01256209 Show/hide tableImproper 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 the O-ring seal and the backup ring onto sleeve (21). Install valve (25), spring (24), shims (23), washers (22), and sleeve (21).
- Install housing (20) and the O-ring seal. Install bolts (19). Tighten bolts (19) to a torque of
60 ± 12 N·m (44 ± 9 lb ft) .Show/hide table
Illustration 17 g01256206 - Install O-ring seal (18), cover (17), and bolts (16). Tighten bolts (16) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) .Show/hide table
Illustration 18 g01256180 Show/hide tableImproper 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 stem (15), retainer (14), springs (13) and (12), shims (11), retainer (10), and bolt (9). Tighten bolt (9) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) . - Install housing (8) and the O-ring seal. Install bolts (7). Tighten bolts (7) to a torque of
20 ± 3 N·m (15 ± 2 lb ft) .Show/hide table
Illustration 19 g01256179 Show/hide tableImproper 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 poppet (7), spring (6), and plug (5). Tighten plug (5) to a torque of
300 ± 40 N·m (221 ± 30 lb ft) . - Install the O-ring seals and the backup rings onto plug (4). Install plug (4). Tighten plug (4) to a torque of
145 ± 15 N·m (107 ± 11 lb ft) . - Repeat Step 38 for the opposite side.
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Illustration 20 g01256176 - Install valve assembly (3).
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Illustration 21 g01256138 - Install cover (1) and nuts (2). Tighten nuts (2) to a torque of
110 ± 8 N·m (81 ± 6 lb ft) .
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| Illustration 1 | g01256843 |
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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. |
End By:
- Install the hydraulic control valve. Refer to Disassembly and Assembly, "Hydraulic Control Valve - Install".