320D2 GC Excavator Machine Systems Swing Drive - Remove and Install Caterpillar


Swing Drive - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
FT-2674  Vacuum Cap 
154-6184  Bolts 
439-3940  Bracket As 
439-3938  Link Bracket 

Start By:

  1. Release the hydraulic system pressure.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned to prevent dirt from entering the internal mechanism.


NOTICE

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.




    Illustration 1g01339124

  1. Remove guards (1).


    Illustration 2g01339125

  2. Remove the bolts and position electronic control module (2) aside.


    Illustration 3g01339132

  3. Remove bolt (3) and position the ground wires aside.


    Illustration 4g01339134

  4. Remove bolts (4).


    Illustration 5g01339137

  5. Remove the bolts and position filter (5) aside. Remove panel (6).


    Illustration 6g01339139

  6. Disconnect hose (7). Remove hoses (9). Disconnect clamps (8). Position the accumulator aside.


    Illustration 7g01339141

  7. Remove panel (10).


    Illustration 8g01339153

  8. Remove bolts (11).


    Illustration 9g01339155

  9. Remove bolt (12).


    Illustration 10g01339157

  10. Remove bolts (13).


    Illustration 11g01339214

  11. Remove the bolts and bracket (14).


    Illustration 12g01341624

  12. Install Tooling (A) onto the hydraulic tank . Attach an air supply hose onto Tooling (A). Apply 276 ± 414 kPa (40 ± 60 psi). This procedure will pull a vacuum on the hydraulic system.


    Illustration 13g01338942

  13. Temporarily install the electronic control module (2). Disconnect hose assemblies (16).


    Illustration 14g01338943

  14. Disconnect harness assembly (17). Remove clip (18).


    Illustration 15g01338945

  15. Remove bolts (19).


    Illustration 16g01338946

  16. Install Tooling (B), Tooling (C), and a suitable lifting device to swing drive (20). The weight of the swing motor and swing drive (20) is approximately 265 kg (585 lb). Remove the swing motor and swing drive (20).


    Illustration 17g01340835

  17. Drain the oil from the swing motor and swing drive.

  18. Use Tooling (D) to separate swing motor (21) from swing drive (22). The weight of swing motor (21) is approximately 68 kg (150 lb).

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
439-3940  Bracket As 
439-3938  Link Bracket 
1U-8846  Gasket Sealant 
Loctite C5A Copper Anti-Seize 

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned to prevent dirt from entering the internal mechanism.

  1. Prior to the installation of the swing motor, make sure that the mating surfaces of the swing motor and the swing drive are thoroughly clean and dry.


    Illustration 18g01340835

  2. Apply Tooling (E) to the mating surface of swing motor (21). Use Tooling (D) to connect swing motor (21) onto swing drive (22). The weight of swing motor (21) is approximately 68 kg (150 lb). Fill the swing motor with oil.


    Illustration 19g01343833

  3. Apply Tooling (E) to the mating surface of swing drive (22). Install Tooling (C), and a suitable lifting device to swing drive (20). The weight of swing drive (20) is approximately 265 kg (585 lb). Position swing drive (20).


    Illustration 20g01338945

  4. Apply Tooling (F) to the threads of bolt (19).

  5. Install bolts (19) to a torque of 250 ± 25 N·m (184 ± 18 lb ft) and turn an additional angle of 45 ± 5 degrees.

  6. Refer to Service Magazine, M0083843, "An Improved Bolt Tightening Procedure for the Critical Joints Is Now Used on All Excavators" for more detail information.


    Illustration 21g01338943

  7. Install clip (18). Connect harness assembly (17).


    Illustration 22g01341624
    Typical Example

  8. Install Tooling (A) onto the hydraulic tank . Attach an air supply hose onto Tooling (A). Apply 276 ± 414 kPa (40 ± 60 psi). This procedure will pull a vacuum on the hydraulic system.


    Illustration 23g01338942

  9. Connect hose assemblies (16). Temporarily disconnect the electronic control module (2).


    Illustration 24g01339214

  10. Install bracket (14).


    Illustration 25g01339157

  11. Install bolts (13).


    Illustration 26g01339155

  12. Install bolt (12).


    Illustration 27g01339153

  13. Install bolts (11).


    Illustration 28g01339141

  14. Install panel (10).


    Illustration 29g01339139

  15. Position the accumulator. Connect clamps (8). Connect hose (7). Install hoses (9).


    Illustration 30g01339137

  16. Install panel (6). Install filter (5) .


    Illustration 31g01339134

  17. Install bolts (4).


    Illustration 32g01339132

  18. Position the ground wires. Install bolt (3) .


    Illustration 33g01339125

  19. Install electronic control module (2).


    Illustration 34g01339124

  20. Install guards (1).

Information System:

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