The Material Handling Boom May Fail on Certain MH3022, MH3024 Material Handlers, and M322D 2 Wheeled Excavators {6501} Caterpillar

Material Handler

MH3022 (S/N: FM21-UP; FB31-UP)

MH3024 (S/N: FB71-UP)

Wheeled Excavator

M322D 2 MH (S/N: EN91-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

Illustration 1	g06394793

Illustration 2	g06394795

Illustration 3	g06394798

The Material Handling Boom ( 390-8759 Boom and Bearing As or 451-2853 Boom and Bearing As) may fail on the machines listed above. Cracks have been reported primarily at the boom nose area. The cause of the failure is under investigation.

Solution

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

Caterpillar is aware of this problem, but a permanent repair has not been defined. In the event of failure, contact your Dealer TC. Create a GDSN Product Health Service Request (SR) to receive instructions if the failed part can be repaired or has to be replaced by the same part number. Include this publication in the description and attach all relevant photos to the SR prior to submitting to Caterpillar.