422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Machine Systems Caterpillar


Bank Valve (Backhoe) - Assemble - Pilot Operated

Usage:

444E HXB

Assembly Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     155-0695     Thread Lock Compound     1    

Note: All portions of all valves must be tightened in order to allow proper operation of the bank valve. Failure to tighten any portion of the bank valve could cause failure and unnecessary disassembly.

Note: The assembly procedure for the bank valve (backhoe) will be the reverse procedure of disassembly. Each valve will be assembled prior to starting the next valve.




    Illustration 1g01401051

  1. This is the bank valve after assembly. The valves within the bank valve are positioned in the following manner. outlet manifold (1), stabilizer valve (2), extendable stick valve (3), stick valve (4), bucket valve (5), swing valve (6), boom valve (7), stabilizer valve (8), and inlet manifold (9) .



    Illustration 2g01402845

  1. Assemble inlet valve (9) .



    Illustration 3g01402603

  1. Install O-ring seal (95) and (97). Install plugs (94) and (96). Tighten plugs (94) to a torque of 60 N·m (44 lb ft).



    Illustration 4g01402591

  1. Install backup ring (92). Install O-ring seals (91) and (93) .



    Illustration 5g01402588

  1. Install relief valve (90). Tighten relief valve (90) to a torque of 45 N·m (33 lb ft).



    Illustration 6g01402584

  1. Install spool (86), shims (87), spring (88), and O-ring seal (89) .



    Illustration 7g01402566

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install cap (85). Tighten the cap to a torque of 100 N·m (73 lb ft).



    Illustration 8g01402542

  1. Install O-ring seal (84) and plug (83). Tighten plug (83) to a torque of 20 N·m (14 lb ft).



    Illustration 9g01402379

  1. Install O-ring seal (82) .



    Illustration 10g01402544

  1. Assemble stabilizer valve (8) .

  1. Repeat Steps 29 through Step 37 for the assembly of stabilizer valve (8) .



    Illustration 11g01401891

  1. Assemble boom valve (7) .



    Illustration 12g01402154

  1. Install O-ring seal (80) and orifice valve (81) .



    Illustration 13g01402133

  1. Install plug (79). Tighten plug (79) to a torque of 60 N·m (44 lb ft).



    Illustration 14g01402129

  1. Install O-ring seal (76), spring (77), and retainer (78) .



    Illustration 15g01402115

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install cover (75). Install bolts (74). Tighten bolts (74) to a torque of 10 N·m (88 lb in).



    Illustration 16g01402110

  1. Install spool (70), retainer (71), spring (72), and O-ring seal (73) .



    Illustration 17g01402093

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install relief valve (67). Tighten relief valve (67) to a torque of 70 N·m (52 lb ft). Install cover (69) and Install bolts (68). Tighten bolts (68) to a torque of 10 N·m (88 lb in).



    Illustration 18g01402072

  1. Install O-ring seals (64) and (66). Install backup ring (65) .



    Illustration 19g01401909

  1. Install O-ring seals (63). Install relief valve (62). Tighten relief valve (62) to a torque of 70 N·m (52 lb ft).



    Illustration 20g01401899

  1. Install O-ring seals (61). Install check valves (60). Tighten check valves (60) to a torque of 30 N·m (22 lb ft).



    Illustration 21g01401886

  1. Assemble swing valve (6) .

  1. Repeat Steps 29 through Step 37 for the assembly of swing valve (6) .



    Illustration 22g01401876

  1. Assemble bucket valve (5) .

  1. Repeat Steps 29 through Step 37 for the assembly of bucket valve (5) .



    Illustration 23g01401859

  1. Assemble stick valve (4) .

  1. Repeat Steps 29 through Step 37 for the assembly of bucket valve (4) .



    Illustration 24g01401642

  1. Assemble extendable stick valve (3) .



    Illustration 25g01681862

  1. Install O-ring seals (59) .



    Illustration 26g01401840

  1. Install plug (57) and relief valve (58). Tighten relief valve (58) to a torque of 32 N·m (23 lb ft).



    Illustration 27g01401792

  1. Install O-ring seal (55) and orifice valve (56) .



    Illustration 28g01401777

  1. Install plug (53). Install fittings (54). Tighten plug (53) to a torque of 60 N·m (44 lb ft).



    Illustration 29g01401712

  1. Install O-ring seal (50), spring (51), and retainer (52) .



    Illustration 30g01401691

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install cover (49). Install bolts (48). Tighten bolts (48) to a torque of 10 N·m (88 lb in).



    Illustration 31g01401683

  1. Install spool (44), retainer (45), spring (46), and O-ring seal (47) .



    Illustration 32g01401667

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install cover (43). Install bolts (42). Tighten bolts (42) to a torque of 10 N·m (88 lb in).



    Illustration 33g01401656

  1. Install O-ring seals (41). Install check valve (39). Tighten check valve (39) to a torque of 30 N·m (22 lb ft). Install O-ring seal (40) .



    Illustration 34g01401420

  1. Assemble stabilizer valve (2) .



    Illustration 35g01401537



    Illustration 36g01401533

  1. Install O-ring seal (35), spring (35), and retainer (37). Install O-ring seals (38) .



    Illustration 37g01401486

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install cover (32). Install bolts (33). Tighten bolts (33) to a torque of 10 N·m (88 lb in). Install check valve (34). Tighten check valve (34) to a torque of 60 N·m (44 lb ft).



    Illustration 38g01401468

  1. Install spool (28), retainer (29), spring (30), and O-ring seal (31) .



    Illustration 39g01401450

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.

    ----------------------

  1. Install cover (27). Install bolts (26). Tighten bolts (26) to a torque of 10 N·m (88 lb in).



    Illustration 40g01401440

  1. Install O-ring seals (25) into stabilizer valve (2) .



    Illustration 41g01403300

  1. Assemble outlet manifold (1) .



    Illustration 42g01401393

  1. Install backup ring (22), O-ring seal (23) and O-ring seal (24) onto cartridge (21).



    Illustration 43g01401363

  1. Install cartridge (21). Install spool (20). Apply Tooling (A) onto the threads of cartridge (21). Tighten cartridge (21) to a torque of 45 ± 6 N·m (33 ± 4 lb ft).



    Illustration 44g01401342

  1. Install O-ring seal (17). Install plug (16). Install coil (19). Install nut (18). Tighten plug (16) to a torque of 20 N·m (15 lb ft). Tighten nut (18) to a torque of 3.5 ± .5 N·m (31 ± 4 lb in).



    Illustration 45g01401147

  1. Install plugs (12) and (14). Install O-ring seal (13) and (15). Tighten plug (12) to a torque of 70 N·m (51 lb ft).



    Illustration 46g01401145

  1. Install nuts (11) onto bank valve (10). Tighten nuts (11) to a torque of 35 ± 3.5 N·m (26 ± 3 lb ft).

End By: Install the bank valve (backhoe). Refer to Disassembly and Assembly, "Bank Valve (Backhoe) - Install".

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