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S365C and S385C Demolition and Scrap Shears Rotator Head Bolts - Replace Caterpillar


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Rotator Head Bolts - Replace
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S365C and S385C Demolition and Scrap Shears [SEBU8485]
S365C and S385C Demolition and Scrap Shears Rotator Head Bolts - Inspect
S365C and S385C Demolition and Scrap Shears Wear Plates - Inspect/Replace
HYDRAULIC SYSTEM
ROTATOR GP
S365C and S385C Demolition and Scrap Shears Rotator Head Bolts - Check
S365C and S385C Demolition and Scrap Shears Rotator Head Bolts - Inspect
S365C and S385C Demolition and Scrap Shears Rotator Head Bolts - Replace

  1. Position the work tool in an upright position just above the ground.

  1. Stop the machine engine in order to prevent inadvertent movement of the work tool.

    Note: The host machine must be equipped with a boom lowering control valve in order to perform this procedure. If the host machine is not equipped with a boom lowering control valve, contact your Cat dealer.

    Show/hide table

    Illustration 1g02174758

  1. Remove rotator head bolt (2) from the outer ring (1) .

  1. Clean the threaded hole.

  1. Clean a new bolt (2) .

  1. Put 155-0695 Thread Lock Compound over the whole threaded length of new bolt (2).

    Show/hide table
    Table 1
    Dynamic assembly torque    
    Sales model     Bolt size     Torque value    
    S365C     M20 x 2.5    
    520 ± 70 N·m (385 ± 50 lb ft)    
    S385C     M24 x 3    
    900 ± 100 N·m (664 ± 74 lb ft)    

  1. Install the new bolt (2) and tighten the new bolt. Use appropriate tooling to apply the torque that is specified in table 1.

  1. Put a mark on rotator head bolt (2) that has been replaced.

    Note: The shear can be rotated manually in order to replace all of the bolts. Use a sufficiently long lever in order to rotate the shear.

  1. Repeat steps 3 through 8 for all of the rotator head bolts (2) on outer ring (1) .
    Show/hide table

    Illustration 2g02174775

  1. Remove bolts (5) and washers (4). Remove cover plate (3) .
    Show/hide table

    Illustration 3g02190813

  1. Cover plate (3) must be removed in order to access rotator head bolts (6) in the inner ring (7). Only a few bolts will be accessible at a time.

  1. Remove rotator head bolt (6) from the inner ring (7) .

  1. Clean the threaded hole.

  1. Clean a new bolt (6) .

  1. Put 155-0695 Thread Lock Compound over the whole threaded length of a new bolt (6) .

  1. Install the new bolt (6) and tighten new bolt. Use appropriate tooling to apply the torque that is specified in table 1.

  1. Put a mark on rotator head bolt (6) that has been replaced.

    Note: The shear can be rotated manually in order to replace all of the bolts. Use a sufficiently long lever in order to rotate the shear.

  1. Repeat steps 12 through 17 for all of the rotator head bolts (6) in the inner ring (7) .

  1. Install cover plate (3) .

  1. Install washers (4) and bolts (5) .

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