301.6C and 301.8C Mini Hydraulic Excavators Machine Systems Caterpillar


Pump Drive Coupling - Remove and Install

Usage:

301.6C JBB

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1859     Retaining Ring Pliers     1    

Start By:

  1. Remove the engine. Refer to Disassembly and Assembly, "Engine - Remove".

Note: Cleanliness is an important factor. Before you begin the removal procedure, the exterior of the components should be thoroughly cleaned. This will help 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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.





    Illustration 1g01177554

  1. Remove bolt (1) .



    Illustration 2g01177556

  1. Remove nuts (2), bolts (4), and muffler assembly (3) .



    Illustration 3g01177557

  1. Remove bolts (5) and (7). Remove housing (6) .



    Illustration 4g01179027

  1. Remove screws (8) and coupler assembly (9) .



    Illustration 5g01179032

  1. Use Tooling (B) to remove retaining ring (10) and coupler (11) .

Installation Procedure

Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1859     Retaining Ring Pliers     1    
B     4C-5598     High Temperature Anti-Seize     1    

Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.


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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.





    Illustration 6g01179032

  1. Install coupler (11). Use Tooling (A) to install retaining ring (10) .



    Illustration 7g01179027

  1. Position coupler assembly (9) and install screws (8) .



    Illustration 8g01177557

  1. Position housing (6). Install bolts (7). Tighten bolts (5) to a torque of 75 N·m (55 lb ft).



    Illustration 9g01177556

  1. Position muffler assembly (3). Install bolts (4). Apply Tooling (B) to the studs. Tighten nuts (2) to a torque of 12.5 N·m (111 lb in).



    Illustration 10g01177554

  1. Install bolt (1) .

End By: Install the engine. Refer to Disassembly and Assembly, "Engine - Install".

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