320D2 GC Excavator Machine Systems Swing Gear and Bearing - Install Caterpillar


Swing Gear and Bearing - Install
`
320D2 GC Excavator Machine Systems [M0066452]
FRAME AND BODY
GEAR & BEARING GP
320D2 GC Excavator Machine Systems Swing Gear and Bearing - Remove
320D2 GC Excavator Machine Systems Swing Gear and Bearing - Install
1.1. Installation Procedure

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
439-3941  Link Bracket As 
132-8223  Hydraulic Pump and Motor (115 V 50/60 Hz Single Phase)(1) 
1U-6221 Hydraulic Torque Wrench 
132-8143 36 mm Hex Link 
Loctite 435 
2P-9066  Lubricant 
1U-8846  Gasket Sealant 
Loctite C5A Copper Anti-Seize 
(1) 132-8231 Hydraulic Pump and Motor (220 V 50/60 Hz Single Phase) is also available.

    Note: If the inner dust seal (3) and the outer dust seal (4) are installed dry, the new dust seals should be installed dry in the swing gear and bearing.

    Note: If the dust seal are bonded to the swing gear and bearing, the new dust seals should be bonded to the swing gear and bearing.

    Note: Perform Steps 1.a through 1.j to install the new dry dust seals.

    Note: Perform Steps 2.a through 2.p to install the new dust seals that are bonded to the swing gear and bearing.



    Illustration 1g00636223

  1. If inner dust seal (3) and outer dust seal (4) were installed dry, use the following procedure to install the new dust seals:

    1. Use a wire brush to clean the grooves for the dust seal of the swing gear and bearing. Make sure that all the dirt and foreign material has been removed.

    2. Wash the grooves for the dust seal in a suitable solvent that will not leave an oily residue.

    3. Ensure that the grooves for the dust seal in the swing gear and bearing are clean and dry prior to installation of the dust seals.

    4. Cut one end of inner dust seal (3) at a 90 degree angle. Use a blunt tool to install the inner dust seal in the seal groove of the swing gear and bearing.

    5. Install the seal so that the lip of the seal is facing in the direction that is shown. Refer to Illustration 1.

    6. After the inner dust seal is installed in the seal groove, measure the seal and cut the remaining end of the inner dust seal at a 90 degree angle. Install the remaining end of the inner dust seal in the seal groove.

    7. Make sure that the inner dust seal is seated properly in the seal groove, all the way around the swing gear and bearing. Also, make sure that there is no gap between the ends of the inner dust seal.

    8. Pull each end of the inner dust seal out of the seal groove of the swing gear and bearing approximately 50.8 mm (2.00 inch). Apply Tooling (C) to each end of the inner dust seal to bond the seals together.

    9. Immediately reinstall the inner dust seal in the seal groove of the swing gear and bearing. Again, make sure that the entire inner dust seal is properly seated in the seal groove of the swing gear and bearing. No gap should exist between the ends of the inner dust seal.

    10. To ensure that the lip of inner dust seal has not adhered to the top of the bearing at the seal joint, run a dull putty knife between the lip of the seal and the bearing at the seal joint.

    11. Follow the procedure in Steps 1.a through 1.j to install outer dust seal (4) in the swing gear and bearing. Refer to Illustration 1 for proper seal orientation in the swing gear and bearing.

  2. If inner dust seal (3) and outer dust seal (4) were bonded in the swing gear and bearing, use the following procedure to install the new dust seals:

    1. Thoroughly clean all the dirt and foreign material from the grooves for the dust seal in the swing gear and bearing with a wire brush.

    2. Wash the grooves for the dust seal in a suitable solvent that will not leave an oily residue.

    3. Make sure that the grooves for the dust seals in the swing gear and bearing are thoroughly clean and dry prior to installation of the dust seals.

      Note: Install inner dust seal (3) and outer dust seal (4) in the swing gear and bearing in small increments, because Tooling (C) cures quickly.

    4. Cut one end of inner dust seal (3) at a 90 degree angle.

    5. Start applying Tooling (C) 50.8 mm (2.00 inch) from the cut end of the seal. Apply Tooling (C) to the seal in 152.4 mm (6.00 inch) increments.

    6. Immediately use a blunt tool to install only the bonded portion of the inner dust seal in the seal groove of the swing gear and bearing. Make sure that the dust seal is seated properly in the seal groove.

    7. Install the seal so that the lip of the seal is facing in the direction that is shown. Refer to Illustration 1.

    8. To ensure that the inner dust seal has not adhered to the bearing, run a dull putty knife between the lip of the seal and the bearing.

    9. Apply Tooling (C) to the next 152.4 mm (6.00 inch) of the seal. Immediately use a blunt tool to install only the bonded portion of the inner dust seal in the seal groove of the swing gear and bearing.

    10. Make sure that the inner dust seal is seated properly in the seal groove. To ensure that the inner dust seal has not adhered to the bearing, run a dull putty knife between the lip of the seal and the bearing.

    11. Repeat Step 2.i and Step 2.j to install the entire length of the dust seal. Do not install the last 152.4 mm (6.00 inch) of the inner dust seal.

    12. Measure the inner dust seal and cut the remaining end of inner dust seal (3) at a 90 degree angle. Install the last 152.4 mm (6.00 inch) of seal in the seal groove dry.

    13. Make sure that the inner dust seal is properly seated in the seal groove and that there is no gap between the seal ends. Carefully remove both loose ends of the inner dust seal out of the seal groove.

    14. Apply Tooling (C) to the loose ends of the seal.

    15. Immediately use a blunt tool to reinstall the seal ends in the seal groove. Again, make sure that the inner dust seal is properly seated in the seal groove. Make sure that no gap existed between the ends of the seal.

    16. To ensure that the inner dust seal has not adhered to the top of the bearing, run a dull putty knife around the seal.

    17. Follow the procedure in Steps 2.a through 2.p to install outer dust seal (4) in the swing gear and bearing. Refer to Illustration 1 for proper seal orientation in the swing gear and bearing.

  3. Lubricate the swing gear and bearing with grease.


    Illustration 2g00520664


    Illustration 3g00520674

    Note: Clean the mating surface for the swing gear and bearing on the undercarriage frame assembly.

  4. Apply Tooling (E) on the mating surface for the swing gear and bearing of the undercarriage frame assembly.

  5. Fasten Tooling (A) and a suitable lifting device to swing gear and bearing (1), as shown. Refer to Illustration 2. The weight of swing gear and bearing (1) is 495 kg (1091 lb).

  6. Place the swing gear and bearing into the original positions on the undercarriage frame assembly.

  7. Make sure that Stamp "S" on the inner race is in the position that is shown, relative to the undercarriage frame assembly and the stopper on the outer race. Refer to Illustration 3.


    Illustration 4g00520670

  8. Apply a thin coat of Tooling (F) on the threads of bolts (2). Install the spacers and bolts (2) that secure the swing gear and bearing to the undercarriage frame assembly.

    Note: Some machines use bolts that are plated with Dacromet. Dacromet bolts appear silver, gray. Do not apply Tooling (F) to the threads of Dacromet bolts. Make sure that the bolt holes are clean and dry when Dacromet bolts are used.

  9. Use Tooling (B) to tighten bolts (2) to a torque of 150 ± 15 N·m (111 ± 11 lb ft). Turn an additional angle of 60 ± 5 degrees.

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


    NOTICE

    Improper lubrication can cause damage to machine components.

    To avoid damage, make sure that the proper amount of grease is applied to the swing drive.

    When the amount of grease in the compartment becomes too large, the agitation loss becomes large, thereby accelerating grease deterioration.

    Grease deterioration can cause damage to the pinion gear of the swing drive and swing internal gear.

    Not enough grease will result in poor gear lubrication.


  11. Add Tooling (D) to the swing gear and bearing after the installation . Refer to Operation and Maintenance Manual, "Swing Gear - Lubricate" and Operation and Maintenance Manual, "Swing Bearing - Lubricate"for lubricating the swing gear and bearing.

End By:

  1. Install the undercarriage frame assembly.

Information System:

320D2 GC Excavator Machine Systems Swing Gear and Bearing - Remove
320D2 GC Excavator Machine Systems Swing Drive - Assemble
An Updated Soft Canopy Group is Now Used on Certain 303E/E2 to 305.5E/E2 Mini-Hydraulic Excavators {7302}
320D2 GC Excavator Machine Systems Swing Drive - Disassemble
320D2 GC Excavator Machine Systems Swing Drive - Remove and Install
320D2 GC Excavator Machine Systems Swing Motor - Assemble
320D2 GC Excavator Machine Systems Swing Motor - Disassemble
320D2 GC Excavator Machine Systems Swing Motor - Remove and Install
Installation of the <NOBR>494-4243</NOBR> Chassis Wiring Gp On Certain Hydraulic Excavators {1408}
Installation Procedure for the <NOBR>492-2301</NOBR> Front Lines Gp On Certain Hydraulic Excavators {5057}
Installation of the <NOBR>488-1415</NOBR> Coupler Control Ar on Certain Hydraulic Excavators {1408, 1901, 5057, 5639, 6129, 7405, 7451, 7557}
320D2 GC Excavator Machine Systems Swivel - Disassemble
320D2 GC Excavator Machine Systems Hydraulic Tank - Remove and Install
320D2 GC Excavator Machine Systems Relief Valve (Pilot) - Remove and Install
A Detailed Torque Sequence for the Plug, Seat, and Nut for the Manual Stick Lowering Control Valve is Used on Certain E Series and F Series Excavators {5117, 5453}
320D2 GC Excavator Machine Systems Gear Pump (Pilot) - Remove and Install
320D2 GC Excavator Machine Systems Gear Pump (Pilot) - Disassemble
320D2 GC Excavator Machine Systems Gear Pump (Pilot) - Assemble
320D2 GC Excavator Machine Systems Main Hydraulic Pump - Remove and Install
320D2 GC Excavator Machine Systems Main Hydraulic Pump - Disassemble
320D2 GC Excavator Machine Systems Main Hydraulic Pump - Assemble
320D2 GC Excavator Machine Systems Auxiliary Pilot Valve (Straight Travel) - Remove and Install
320D2 GC Excavator Machine Systems Pilot Valve (Joystick) - Remove and Install
320D2 GC Excavator Machine Systems Pilot Valve (Joystick) - Disassemble