Service Repair Manual
Model: 325C EXCAVATOR BKH
Configuration: ISJ HEX COMMONALITY CHART BKH00001-UP (MACHINE)
Disassembly and Assembly
3126B Engines for Caterpillar Built Machines
Media Number -SENR9581-06
Publication Date -01/08/2018
Date Updated -17/08/2018
Pistons and Connecting Rods - Install
SMCS - 1225-012
Tool Part Number
Piston Ring Compressor
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
The joint between the connecting rod and the connecting rod cap is
produced by fracturing. The connecting rod assembly must be handled
with care in order to avoid damage to the mating surfaces. The
connecting rod assembly must be replaced if any damage occurs to the
mating surfaces. New connecting rod assemblies come with the
connecting rod caps bolted on the connecting rod.
ISJ HEX COMMONALITY CHART BKH00001-UP (MACHINE)(SEBP5600 - 00) - ...
Use only a soft jawed vise to hold the connecting rod assembly when
removing the connecting rod cap bolts. Use only a soft faced hammer
to tap the connecting rod cap when separating the connecting rod cap
from the connecting rod.
Failure to use a soft jawed vise and a soft faced hammer may result in
damage to the connecting rod assembly.
Always use new connecting rod bolts during the installation of
connecting rod assemblies that have fractured joints. Never reuse
connecting rod bolts during the reassembly of fractured joint
Reusing connecting rods bolts during reassembly of fractured joint
connecting rods may result in engine damage.
1. Ensure that the fractured joints of the connecting rod are clean prior to installation. Use
compressed air or a wire brush to clean the