Service Repair Manual
313D2 LGP Excavator
Model: 313D2 LGP EXCAVATOR GAJ
Configuration: 313D2 LGP Excavator GAJ00001-UP (MACHINE) POWERED BY 3054C Engine
Disassembly and Assembly
313D2 Excavator Machine Systems
Media Number -UENR3323-06
Publication Date -01/06/2018
Date Updated -27/06/2018
Main Hydraulic Pump - Assemble
SMCS - 5070-016
Tool Part Number
Retaining Ring Pliers
Note: If a failure occurs, an accurate diagnosis of the cause can prevent a recurrence. Information
is available to analyze failures for piston pumps and motors. Refer to Special Publication,
SEBD0641, "Analyzing Axial Piston Pump and Motor Failures".
Note: Inspect all parts. If any parts are worn or damaged use new parts for replacement. The
installation of used parts during reconditioning is acceptable. Reuse and salvage information is
available on piston pumps. Refer to Guideline For Reusable Parts and Salvage Operations,
SEBF8032, "Piston Pumps and Motors". During reconditioning, correct any conditions that might
have caused the original failure.
Note: Check the O-ring seals, the gaskets and the seals for wear or for damage and replace the
components, if necessary.
Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts with
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 problems. Inspect all parts. If any parts are worn or
damaged, install new parts. All disassembly and all assembly procedures must be performed on a
313D2 LGP Excavator GAJ00001-UP (MACHINE) POWERED BY 3054C Engine(S...
clean work surface and in a clean hydraulic area. Keep cleaned parts covered and protected at all