The Main Hydraulic Pump May Leak Oil From Shaft On Certain 301.7 CR, 301.8, and 302 CR Mini Hydraulic Excavators {5070} Caterpillar


The Main Hydraulic Pump May Leak Oil From Shaft On Certain 301.7 CR, 301.8, and 302 CR Mini Hydraulic Excavators {5070}

Usage:

301.8 H8X
Mini Hydraulic Excavator
301.7CR (S/N: JH71-UP)
301.8 (S/N: H8X1-UP)
302CR (S/N: RHM1-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

The main hydraulic pump may leak oil from shaft of pump on certain mini hydraulic excavators.

Solution

Caterpillar is aware of the problem, but an interim repair has not been defined. Replace with the same part number.

Table 1
Required Parts 
Qty  New Part Number  Part Name 
487-6207  Piston Pump Gp 


    Illustration 1g06403153
    Flywheel housing

  1. When replacing 487-6207 Piston Pump Gp make sure that the flywheel is clean from any oil before reinstalling.

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