321C LCR Excavator Machine Systems Caterpillar


Swing Motor - Remove

Usage:

321C DAX

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7575  Link Bracket 

Note: Put identification marks on all hose assemblies for installation purposes. Plug all of the hose assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.


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, PERJ1017, "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.


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

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.


  1. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure- Release".

  2. Clean the swing motor, and clean the area around the swing motor prior to removing the swing motor.


    Illustration 1g01014823

  3. Remove bolts (1) and guard assembly (2).


    Illustration 2g01014824

  4. Remove bolts (3) and guard assembly (4).


    Illustration 3g01014825

  5. Disconnect hose assemblies (5), (6), (7), (8), and (9).


    Illustration 4g01014826

  6. Loosen dipstick tube (10).

  7. Remove bolts (11) and disconnect harness assembly (12).


    Illustration 5g01014828

  8. Remove bolts (13) and dipstick (10).


    Illustration 6g01014829

  9. Attach Tooling (A) and a suitable lifting device to the swing motor. The weight of the swing motor is approximately 45 kg (100 lb). Remove bolts (14) that fasten the swing motor to the swing drive. Remove the swing motor.

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