320D2 GC Excavator Machine Systems Swing Drive - Assemble Caterpillar


Swing Drive - Assemble
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1.1. Assembly Procedure

Assembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
5P-1863  Retaining Ring Pliers 
138-7575  Link Brackets 
138-7573  Link Brackets 
FT-3023  Sleeve 
1P-0520  Driver Gp 
5P-3931  Anti-Seize Compound 
8M-4856 (1)  Sleeve 
Guide Stud
M16 - 2.00 by 140mm 
1U-8846  Gasket Sealant 
(1) This part is being discontinued. Replace with 367-6742 Sleeve .

Note: Cleanliness is an important factor. Before assembly, clean all parts in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.



    Illustration 1g01339794


    Illustration 2g01339807

  1. Use a suitable press and Tooling (G) in order to install lip seal (35) into cage (33).

  2. Use two people to place shaft (32) in a suitable press. The weight of shaft (32) is approximately 30 kg (65 lb). Install cage (33). Install O-ring seal (34).


    Illustration 3g01339812


    Illustration 4g01339149

  3. Apply Tooling (H) to inner diameter of the bearing and the shaft. Use a suitable press and Tooling (J) in order to install bearing (30). Install spacer (31). The bevel of the spacer must face upward.

  4. Install bearing (30).


    Illustration 5g01339824


    Illustration 6g01339903

  5. Attach a suitable lifting device to shaft assembly (29). Use Tooling (A) in order to install retaining ring (19). Install shaft assembly (29) onto Tooling (E). Remove the suitable lifting device.

  6. Attach Tooling (B) and a suitable lifting device to housing (28). Install housing (28) on the shaft assembly. Position the shaft assembly to the side by 90 degrees. Remove tooling (E).


    Illustration 7g01339732

  7. Install bolts (27).


    Illustration 8g00703698

  8. Assemble the gear assembly, as follows: washer (22), bearing (23), gear (24), bearing (25), and washer (26).


    Illustration 9g00702640


    Illustration 10g00703700

  9. Use a deburring tool in order to remove the metal burr from the openings in the carrier. Install shaft (21) and the gear assembly into the carrier assembly. Drive roll pin (20) into shaft (21). Orient the split in roll pin (20) vertically to the carrier. Align the split in the roll pin to the top or to the bottom. Make a stake mark on each side of the roll pin hole in the carrier. Each stake mark should be approximately 2.25 ± 0.75 mm (0.090 ± 0.030 inch) from the outside diameter of the roll pin hole.

  10. Repeat Step 8 through Step 9 for the remaining gear assemblies.


    Illustration 11g01338951

  11. Install carrier assembly (18) into the housing. The weight of carrier assembly (18) is approximately 25 kg (55 lb).


    Illustration 12g00702596

  12. Use Tooling (A) to install retaining ring (19).


    Illustration 13g00702584

  13. Install spacer (17) into carrier assembly (18).


    Illustration 14g01340279


    Illustration 15g00702583

  14. Apply Tooling (L) to the face of housing (16). Install Tooling (K) in order to help align the housing and the ring gear. Use two people in order to install ring gear (15) onto housing (16). The weight of ring gear (15) is approximately 29 kg (65 lb).


    Illustration 16g00702459

  15. Install retaining ring (14) into the sun gear.


    Illustration 17g00702457

  16. Install carrier (13) into the sun gear. Install retaining ring (11) into sun gear (12).


    Illustration 18g00703707

  17. Assemble the gear assembly, as follows: washer (7), gear (8), bearing (9), and washer (10)


    Illustration 19g00702452


    Illustration 20g00703700

  18. Use a deburring tool in order to remove the metal burr from the openings in the carrier. Install shaft (6) and the gear assembly into the carrier assembly. Drive roll pin (5) into shaft (6). Orient the split in roll pin (5) vertically to the carrier. Align the split in the roll pin to the top or to the bottom. Make a stake mark on each side of the roll pin hole in the carrier. Each stake mark should be approximately 2.25 ± 0.75 mm (0.090 ± 0.030 inch) from the outside diameter of the roll pin hole.

  19. Repeat Step 17 through Step 18 for the remaining gear assemblies.


    Illustration 21g00702451

  20. Install carrier assembly (2) into ring gear (4).


    Illustration 22g00702450

  21. Install spacer (3).


    Illustration 23g00702449

  22. Install sun gear (1) into carrier assembly (2).

End By:

  1. Install the swing motor.

  2. Install the swing drive.

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