854G Wheel Tractor and 992G Wheel Loader Power Train Axle Shaft - Remove and Install Caterpillar


Axle Shaft - 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    
A     138-7573     Link Bracket     1    
B     2P-8312     Pliers     1    
C     1P-7407     Eyebolt     1    


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, "AVSpare Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on AVSpare products.

Dispose of all fluids according to local regulations and mandates.


Note: The removal procedures for the front axle shafts and for the rear axle shafts are identical.

Note: The axle shafts can be removed while the axle assemblies are still on the machine. If the axle assemblies are still installed, chock the wheels and connect the steering frame lock before you perform the removal procedure. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".

  1. If the axle assembly is still on the machine, drain the oil from the axle housing and from the final drives into a suitable container.



    Illustration 1g00375153

  1. Install Tooling (A), and a suitable lifting device on cover assembly (2), as shown.

  1. Remove bolts 1, cover assembly (2) and the O-ring seal. The weight of cover assembly (2) is approximately 36 kg (80 lb).



    Illustration 2g00999465



    Illustration 3g00375156

  1. Install Tool (C) in the end of the axle shaft. Use Tool (C) to pull axle shaft (4) from the final drive by approximately 762 mm (30 inch).

  1. Attach a suitable lifting device to axle shaft (4), as shown. Remove axle shaft (4). The weight of axle shaft (4) is 114 kg (250 lb).



    Illustration 4g00375159

  1. Use Tooling (B) to remove retaining ring (5) .



    Illustration 5g00375160

  1. Remove the eyebolt, sun gear (6) and spacer (7) from axle shaft (4) .

  1. Repeat the procedure for the remaining axle shaft.

Installation Procedure

Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7573     Link Bracket     1    
B     2P-8312     Pliers     1    
C     4C-8154     Axle Installer     1    

Note: The installation procedures for the front axle shaft and for the rear axle shafts are identical.

    Note: Thoroughly clean all of the components prior to installation.

  1. Fasten a suitable lifting device to the axle shaft and install the drive shaft in the final drive. Remove the lifting device.



    Illustration 6g00375161

  1. Slide Tooling (C) over the end of the axle shaft, as shown. Use Tooling (C) to guide the axle shaft in the splines of the service brake and of the differential. Remove Tooling (C) .



    Illustration 7g00375160

  1. Put spacer (7) and sun gear (6) on the end of axle shaft (4). Align the sun gear with the planetary gears and slide the sun gear completely onto the axle shaft.

    Note: It may be necessary to rotate the wheel assembly in order to align the sun gear with the planetary gears. If the axle assembly and the tires are still installed on the machine, the tire must be raised off the ground in order to rotate the wheel assembly.




    Illustration 8g00375287

  1. Use Tooling (B) to install retaining ring (5) .



    Illustration 9g00375153

  1. Install a new O-ring seal in the groove of the final drive assembly.

  1. Install Tooling (A), and a suitable lifting device on cover assembly (2). Install the cover assembly and bolts (1). The torque for bolts (1) is 120 ± 20 N·m (90 ± 15 lb ft).

  1. Fill the axle housing and the final drives with oil. For the correct procedure, refer to the Operation and Maintenance Manual for your machine.

    Note: If the axle assemblies have been removed from the machine, do not fill the axle housing and the final drives with oil. The axle assemblies must be installed first.

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