C2.4 Tier 4 Final Engines for Caterpillar Built Machines Pistons and Connecting Rods - Disassemble Caterpillar


Pistons and Connecting Rods - Disassemble
`
1.1. Disassembly Procedure

Disassembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1U-6683  Ring Expander 
387-1313  Piston Wrist Pin Tool 

Start By:

  1. Remove the pistons and the connecting rods.

Note: Make a temporary mark on the components of the piston and connecting rod assembly. Marking the components will ensure that the components of each piston and connecting rod assembly can be reinstalled in the original cylinder. Mark the underside of the piston on the front pin boss. Do not interchange components.


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g02723365


    Illustration 2g02723368

  1. Position the piston and connecting rod in a soft jaw vise. Use Tooling (A) to remove three rings (2) from piston (1).


    Illustration 3g02723373


    Illustration 4g02723375

  2. Remove retaining ring (4) and remove piston wrist pin (3) from piston (1).

    Note: Note the position of the forged mark on the piston and the marks on the rod. The forged marks are for the purposes of correct orientation of the connecting rod assembly and piston assembly.

  3. If necessary, remove bolts (7) and connecting rod bearings (6) from connecting rod (5) and connecting rod cap (8). Inspect connecting rod bushing (9).


    Illustration 5g02836798

  4. Place the piston on a suitable surface with the crown upward. Use Tooling (B) to remove connecting rod bushing (9) from connecting rod (5).

  5. Inspect the connecting rod for wear and damage. If necessary, replace connecting rod (5) or replace the connecting rod bushing (9).

    Note: If the connecting rod or the bush for the piston pin are replaced, refer to Specifications, "Connecting Rods" for the correct procedure.

  6. Repeat Step 1 through Step 5 to disassemble the remaining pistons and connecting rods.

Information System:

C2.4 Tier 4 Final Engines for Caterpillar Built Machines Rocker Shaft - Assemble
C2.4 Tier 4 Final Engines for Caterpillar Built Machines Rocker Shaft - Disassemble
300.9D VPS Mini Hydraulic Excavator Machine Systems Fuel Injection Nozzle - Test
An Improved Double Grouser Track Shoe is Now Used On Certain Excavators {4170}
325F Excavator Engine Supplement Cooling System Package (Radiator, Hydraulic Oil Cooler, and Aftercooler) - Assemble
C2.4 Tier 4 Final Engines for Caterpillar Built Machines Camshaft Gear - Remove and Install
320D2 GC Excavator Machine Systems Cab - Remove and Install
320D2 GC Excavator Machine Systems Window Wiper Motor - Remove and Install - Upper
320D2 GC Excavator Machine Systems Upper Frame and Undercarriage Frame - Connect
C2.4 Tier 4 Final Engines for Caterpillar Built Machines Piston and Connecting Rods - Remove and Install
320D2 GC Excavator Machine Systems Upper Frame and Undercarriage Frame - Separate
312F and 313F Excavator Machine Systems Cylinder Speed - Check - Blade (If Equipped)
C2.4 Tier 4 Final Engines for Caterpillar Built Machines Pistons and Connecting Rods - Assemble
320D2 GC Excavator Machine Systems Counterweight - Remove and Install
320D2 GC Excavator Machine Systems Fuel Tank - Remove and Install
325F Excavator Machine Systems Counterweight - Remove and Install
312F and 313F Excavator Machine System Specifications Hydraulic Tank and Filter
312F and 313F Excavator Machine System Specifications Air Conditioner Lines
312F and 313F Excavator Machine System Specifications Control Valve (Auxiliary)
316F Excavator Machine System Specifications Stick - 3.1 m (10.17 ft)
312D2 and 313D2 Excavators Fuses - Replace
320D2 GC Excavator Machine Systems Check Valve (Cooler Bypass) - Remove and Install
320D2 GC Excavator Machine Systems Hydraulic Lockout Control - Remove and Install
320D2 GC Excavator Machine Systems Seat - Remove and Install